PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 10:06 AM ET

Sponsor Check › Person

WS
No photo found yet (own website and image search run after this page is viewed)

William Singer

Named as an officer, director or promoter on SEC Form D filings · NY, IL, FL, NJ · Dec 1, 2016 → Oct 24, 2025

2deals (issuers)
$38.5Mreported sold
351investors
10Form D filings
2016–2025years on file
Follow this personLook further ↓PDF

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:16 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

William Singer is listed as an executive officer and director on 10 SEC Form D filings by 2 issuers between Mar 2013 and Oct 2025: Neurotrope, Inc. (New York, NY — biotechnology — 2013–2016; $24.5M reported sold to 221 investors) and TAO Synergies Inc. (New York, NY — industry reported as "Other" — 2013–2025; $14M reported sold to 130 investors).

What this means 2 separate companies raised money with this person listed as executive officer and director, over about 12 years. Across those companies the filings report $38.5M sold in total.

Listed alongside Robert Weinstein (9 shared filings), Bruce T. Bernstein (6 shared filings), Joshua Silverman (6 shared filings), Jonathan L. Schechter (4 shared filings), Alan J. Tuchman (3 shared filings) and 16 others.

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around William. Each name links to their own page.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AK, AL, AR, AZ, CA, CO, CT, DC, DE, FINRA, FL, GA, HI, ID, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NASAA, NC, ND, NH, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, WA, WI, WV, WY) — 31 bankruptcy cases matching the name listed in Key records below.

What this means 31 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.

We compared 10 public filings for William Singer and found 13 differences, 1 worth asking the sponsor about: 9 bankruptcy cases name the subject or team members; and more below.

What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.

What the community is saying

Community search for William Singer has not run yet — it is #28,116 of 46,944 in line; searches run around the clock at the hosts' allowed rate. Searched so far: 641 names.

Community comments are quoted as written by their authors. Sources searched: Bing (site:reddit.com / site:biggerpockets.com) and Reddit's own search, plus DuckDuckGo/Brave/BiggerPockets search when they are answering.

Key records

Five things investors ask first. Items still in human review are counted, not shown.

1. Lawsuits

None found in sources searched — federal courts (CourtListener / RECAP), checked Oct 24, 2026

What was searched

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30; recall-first rule 10-24) — federal district + bankruptcy courts State courts: not covered (one-tap state court links under Look further). PACER: not searched. · Last checked Oct 24, 2026, 2:16 AM ET.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

2. Regulatory actions

None found in sources searched — SEC enforcement releases (index scan as of Oct 24, 2026, 2:50 AM ET) · state securities regulators: 48 regulators (FINRA, NASAA, 37 states) — crawled Oct 24, 2026, 8:48 AM ET

What was searched

SEC enforcement searched: SEC litigation releases and administrative proceedings — respondent names in the sec.gov index titles (30,205 releases, 1995-09-19 to 2026-10-23); release text is read only to confirm a candidate. Names that appear only in the body of a release are not found. — Searched SEC litigation releases and administrative proceedings (1995→ / 2007→) (30,205 records as of Oct 24, 2026, 2:50 AM ET) — nothing matched William Singer..

State securities regulators: Securities regulators searched (64,910 actions): FINRA (38,350 actions, 1995–2026), NASAA (31 actions, 2000–2026; listing starts 1997), AK Division of Banking and Securities (273 actions, 1971–2025), AL Securities Commission (880 actions, 2001–2026), AR Securities Department (1,305 actions, 1998–2026), AZ Corporation Commission Securities Division (411 actions, 2017–2026), CA DFPI (25 actions, 2007–2024; listing starts 2002 — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), CO Division of Securities (731 actions, 2001–2026; older years from the Internet Archive (snapshot of 2026-05-02)), CT Department of Banking Securities Division (940 actions, 2006–2026; older years from the Internet Archive (snapshot of 2026-04-22)), DC DISB Securities Bureau (25 actions, 2012–2026), DE DOJ Investor Protection Unit (257 actions, 1987–2026), FL Office of Financial Regulation (49 actions, 2018–2026), GA Secretary of State Securities Division (65 actions, 2015–2026; listing starts 2012), HI DCCA Securities Enforcement Branch (26 actions, 2012–2026), ID Department of Finance Securities Bureau (663 actions, 1994–2026), IL Secretary of State Securities Department (4,122 actions, 2003–2023), KS Insurance Department Securities Division (58 actions), KY Department of Financial Institutions (342 actions, 2005–2026), LA Office of Financial Institutions Securities Division (13 actions, 2010–2025; listing starts 2008), MA Secretary of the Commonwealth Securities Division (125 actions, 2012–2025; live site blocks automated access — loaded from the Internet Archive snapshot of 2026-02-04), MD Attorney General Securities Division (1,054 actions, 2004–2026), ME Office of Securities (539 actions, 2000–2026), MI LARA Corporations, Securities & Commercial Licensing Bureau (201 actions), MO Secretary of State Securities Division (919 actions, 1998–2026), MS Secretary of State Securities Division (209 actions, 1995–2026), MT Commissioner of Securities and Insurance (597 actions, 2000–2026), NC Secretary of State Securities Division (265 actions, 2004–2024), ND Securities Department (711 actions, 1990–2026; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2026-01-06), NH Bureau of Securities Regulation (402 actions, 2002–2026), NM Regulation and Licensing Department Securities Division (90 actions, 2010–2025), NV Secretary of State Securities Division (118 actions, 2018–2026), NY Attorney General Investor Protection Bureau (44 actions, 2012–2026), OH Division of Securities (327 actions, 1993–2006), OK Department of Securities (2,531 actions, 1998–2026), OR Division of Financial Regulation (589 actions, 1988–2026), PA Department of Banking and Securities (1,448 actions, 2008–2024; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2024-08-09), RI DBR Securities Division (98 actions, 2005–2025), SC Attorney General Securities Division (540 actions, 2006–2026), SD Division of Insurance – Securities Regulation (106 actions, 2017–2026), TN Department of Commerce and Insurance Securities Division (405 actions, 1992–2026), TX State Securities Board (936 actions, 1999–2026), UT Division of Securities (772 actions, 2000–2026; older years from the Internet Archive (snapshot of 2010-05-27)), VT DFR Securities Division (137 actions, 2010–2026), WA DFI (2,039 actions, 2001–2026), WI DFI Division of Securities (1,072 actions, 1998–2026), WV Securities Commission (State Auditor) (64 actions), WY Secretary of State Compliance Division (6 actions, 2016–2024) — last crawled Oct 24, 2026, 8:48 AM ET. No machine-readable public listing today for IA, IN, MN, NE, NJ, VA (see docs/state-regulators.md).

3. Bankruptcies

31 cases: 2 open, 29 closed (disposition not in docket feed)

William L. Singer open
United States Bankruptcy Court, N.D. Ohio · No. 24-50988 · Filed Jul 2, 2024
Role of William L. Singer: Debtor · Outcome: Open — no termination date on the docket (bulk snapshot 2026-09-30) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in OH (not a filing state)
William J. Singer open
United States Bankruptcy Court, W.D. Pennsylvania · No. 23-22310 · Filed Oct 31, 2023
Role of William J. Singer: Debtor · Outcome: Open — no termination date on the docket (bulk snapshot 2026-09-30) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William C Singer and Paula A Singer closed
United States Bankruptcy Court, D. New Jersey · No. 17-17659 · Filed Apr 17, 2017 · Closed Sep 12, 2017
Role of William C Singer and Paula A Singer: Debtor · Outcome: Case closed 2017-09-12 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William C Singer and Janet Singer closed
United States Bankruptcy Court, M.D. Florida · No. 8:17-bk-01456 · Filed Feb 24, 2017 · Closed Mar 13, 2018
Role of William C Singer and Janet Singer: Debtor · Outcome: Case closed 2018-03-13 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (FL)
William E. Singer and Barbara A. Singer closed
United States Bankruptcy Court, E.D. Kentucky · No. 12-22353 · Filed Dec 17, 2012 · Closed Jun 28, 2018
Role of William E. Singer and Barbara A. Singer: Debtor · Outcome: Case closed 2018-06-28 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in KY (not a filing state)
William C. Singer and Janet A. Singer closed
United States Bankruptcy Court, D. New Jersey · No. 11-43836 · Filed Nov 23, 2011 · Closed Jan 17, 2017
Role of William C. Singer and Janet A. Singer: Debtor · Outcome: Case closed 2017-01-17 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William B. Singer, Jr closed
United States Bankruptcy Court, D. New Hampshire · No. 10-10227 · Filed Jan 26, 2010 · Closed Jun 2, 2010
Role of William B. Singer, Jr: Debtor · Outcome: Case closed 2010-06-02 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in NH (not a filing state)
William C Singer and Paula A Singer closed
United States Bankruptcy Court, D. New Jersey · No. 09-16113 · Filed Mar 13, 2009 · Closed Dec 4, 2009
Role of William C Singer and Paula A Singer: Debtor · Outcome: Case closed 2009-12-04 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William J. Singer and Diane M. Singer closed
United States Bankruptcy Court, E.D. Michigan · No. 08-21384 · Filed May 6, 2008 · Closed Aug 15, 2008
Role of William J. Singer and Diane M. Singer: Debtor · Outcome: Case closed 2008-08-15 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in MI (not a filing state)
William C Singer and Esther M Singer closed
United States Bankruptcy Court, M.D. Pennsylvania · No. 1:08-bk-01161 · Filed Apr 2, 2008 · Closed Apr 15, 2013
Role of William C Singer and Esther M Singer: Debtor · Outcome: Case closed 2013-04-15 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William Singer, Jr. closed
United States Bankruptcy Court, M.D. Alabama · No. 04-11474 · Filed Jul 9, 2004 · Closed Jul 20, 2004
Role of William Singer, Jr.: Debtor · Outcome: Case closed 2004-07-20 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in AL (not a filing state)
William Singer, Jr. closed
United States Bankruptcy Court, M.D. Alabama · No. 04-10062 · Filed Jan 12, 2004 · Closed Dec 6, 2004
Role of William Singer, Jr.: Debtor · Outcome: Case closed 2004-12-06 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in AL (not a filing state)
William W. Singer and Neila L. Berry closed
United States Bankruptcy Court, W.D. Pennsylvania · No. 03-20835 · Filed Jan 23, 2003 · Closed Jun 18, 2004
Role of William W. Singer and Neila L. Berry: Debtor · Outcome: Case closed 2004-06-18 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William . Singer closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 01-21821 · Filed Apr 16, 2001 · Closed Aug 20, 2001
Role of William . Singer: Debtor · Outcome: Case closed 2001-08-20 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William E. Singer closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 00-34003 · Filed Nov 13, 2000 · Closed Dec 20, 2000
Role of William E. Singer: Debtor · Outcome: Case closed 2000-12-20 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William J. Singer closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 00-21709 · Filed May 2, 2000 · Closed Oct 6, 2000
Role of William J. Singer: Debtor · Outcome: Case closed 2000-10-06 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William R. Singer and Cheri D. Singer closed
United States Bankruptcy Court, W.D. Pennsylvania · No. 99-24305 · Filed Jun 7, 1999 · Closed Apr 11, 2000
Role of William R. Singer and Cheri D. Singer: Debtor · Outcome: Case closed 2000-04-11 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William L. Singer and Trina Marie Singer closed
United States Bankruptcy Court, N.D. Ohio · No. 99-51688 · Filed Jun 4, 1999 · Closed Oct 19, 1999
Role of William L. Singer and Trina Marie Singer: Debtor · Outcome: Case closed 1999-10-19 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in OH (not a filing state)
William Singer closed
United States Bankruptcy Court, N.D. Ohio · No. 99-12197 · Filed Mar 26, 1999 · Closed Nov 29, 1999
Role of William Singer: Debtor · Outcome: Case closed 1999-11-29 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in OH (not a filing state)
William G. Singer closed
United States Bankruptcy Court, D. New Mexico · No. 98-11968 · Filed Mar 30, 1998 · Closed Apr 10, 2001
Role of William G. Singer: Debtor · Outcome: Case closed 2001-04-10 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in NM (not a filing state)
William Singer closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 98-13012 · Filed Mar 6, 1998 · Closed May 29, 1998
Role of William Singer: Debtor · Outcome: Case closed 1998-05-29 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William A Singer closed
United States Bankruptcy Court, S.D. Ohio · No. 3:97-bk-35447 · Filed Sep 26, 1997 · Closed Mar 5, 1999
Role of William A Singer: Debtor · Outcome: Case closed 1999-03-05 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in OH (not a filing state)
William L. Singer, Sr. closed
United States Bankruptcy Court, N.D. New York · No. 97-63943 · Filed Jun 25, 1997 · Closed Dec 10, 1997
Role of William L. Singer, Sr.: Debtor · Outcome: Case closed 1997-12-10 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NY)
William P. Singer and Deborah J. Singer closed
United States Bankruptcy Court, W.D. New York · No. 2-97-20724 · Filed Mar 3, 1997 · Closed Mar 1, 2001
Role of William P. Singer and Deborah J. Singer: Debtor · Outcome: Case closed 2001-03-01 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NY)
William H. Singer closed
United States Bankruptcy Court, M.D. Pennsylvania · No. 1:94-bk-02193 · Filed Dec 22, 1994 · Closed Aug 7, 1995
Role of William H. Singer: Debtor · Outcome: Case closed 1995-08-07 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in PA (not a filing state)
William C. Singer and Janet Singer closed
United States Bankruptcy Court, E.D. Tennessee · No. 3:92-bk-33720 · Filed Aug 6, 1992 · Closed Sep 18, 1997
Role of William C. Singer and Janet Singer: Debtor · Outcome: Case closed 1997-09-18 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in TN (not a filing state)
William Singer closed
United States Bankruptcy Court, D. New Jersey · No. 92-11574 · Filed Mar 26, 1992 · Closed Sep 1, 1992
Role of William Singer: Debtor · Outcome: Case closed 1992-09-01 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William Singer closed
United States Bankruptcy Court, D. New Jersey · No. 90-12418 · Filed Sep 18, 1990 · Closed Jan 22, 1992
Role of William Singer: Debtor · Outcome: Case closed 1992-01-22 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William Singer closed
United States Bankruptcy Court, D. New Jersey · No. 90-31033 · Filed Mar 16, 1990 · Closed Jan 2, 1991
Role of William Singer: Debtor · Outcome: Case closed 1991-01-02 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in the person's filing state (NJ)
William A Singer closed
United States Bankruptcy Court, S.D. Ohio · No. 3:90-bk-30417 · Filed Feb 1, 1990 · Closed May 6, 1993
Role of William A Singer: Debtor · Outcome: Case closed 1993-05-06 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in OH (not a filing state)
William Singer and Angeline Loretta Singer closed
United States Bankruptcy Court, S.D. California · No. 89-08212 · Filed Oct 23, 1989 · Closed Mar 21, 1990
Role of William Singer and Angeline Loretta Singer: Debtor · Outcome: Case closed 1990-03-21 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 47 federal dockets); court in CA (not a filing state)
What was searched

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not covered (one-tap state court links under Look further). PACER: not searched (RECAP only). · Last checked Oct 24, 2026, 2:16 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

4. Differences between public sources

Comparisons cover issuers and sponsor groups — see the issuer pages under Deals

13 differences found between the filings for William Singer — 1 worth asking about (compared 10 filings on Oct 24, 2026)

Worth asking · Mar 16, 1990 – Mar 13, 2018

9 bankruptcy cases name the subject or team members

Bankruptcy case: William C Singer and Janet Singer — filed Feb 24, 2017 · Bankruptcy case: William C Singer and Paula A Singer — filed Apr 17, 2017 · Bankruptcy case: William C. Singer and Janet A. Singer — filed Nov 23, 2011 · Bankruptcy case: William C Singer and Paula A Singer — filed Mar 13, 2009 · Bankruptcy case: William P. Singer and Deborah J. Singer — filed Mar 3, 1997 · and 4 more

What this means A bankruptcy filing was found. Many are old or personal and have nothing to do with the deal — but ask what it was and when it closed.

Docket · United States Bankruptcy Court, M.D. Florida ↗Docket · United States Bankruptcy Court, D. New Jersey ↗Docket · United States Bankruptcy Court, D. New Jersey ↗Docket · United States Bankruptcy Court, D. New Jersey ↗
Sources
Note · Jan 21, 2021 – Feb 12, 2021

Form D filed 22 days after the first sale — TAO Synergies Inc.

The filing says the first sale was Jan 21, 2021. The Form D was filed Feb 12, 2021 — 22 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 7 days past that.

What this means A late notice is common and carries no penalty by itself. It is worth asking the sponsor why the paperwork lagged.

Form D · Feb 12, 2021 ↗TAO Synergies Inc. — PartnerFacts page ↗
Sources
Note · Oct 4, 2013 – Oct 21, 2013

Form D filed 17 days after the first sale — Neurotrope, Inc.

The filing says the first sale was Oct 4, 2013. The Form D was filed Oct 21, 2013 — 17 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 2 days past that.

What this means A late notice is common and carries no penalty by itself. It is worth asking the sponsor why the paperwork lagged.

Form D · Oct 21, 2013 ↗Neurotrope, Inc. — PartnerFacts page ↗
Sources
Note · Nov 13, 2015 – Nov 24, 2015

No amendment in the last 12 months on an offering that may still be open — Neurotrope, Inc. (latest filing Nov 24, 2015)

The latest filing for this offering is dated Nov 24, 2015 (first sale Nov 13, 2015). It reports $15,329,920 sold of $20,000,000 offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D · Nov 24, 2015 ↗Neurotrope, Inc. — PartnerFacts page ↗
Sources
Note · Aug 23, 2013 – Sep 5, 2013

No amendment in the last 12 months on an offering that may still be open — TAO Synergies Inc. (latest filing Sep 5, 2013)

The latest filing for this offering is dated Sep 5, 2013 (first sale Aug 23, 2013). It reports $11,533,375 sold of $12,613,375 offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D · Sep 5, 2013 ↗TAO Synergies Inc. — PartnerFacts page ↗
Sources
Note · Feb 28, 2013 – Mar 13, 2013

No amendment in the last 12 months on an offering that may still be open — TAO Synergies Inc. (latest filing Mar 13, 2013)

The latest filing for this offering is dated Mar 13, 2013 (first sale Feb 28, 2013). It reports $9,073,300 sold of $15,000,000 offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D · Mar 13, 2013 ↗TAO Synergies Inc. — PartnerFacts page ↗
Sources
Note · Oct 21, 2013 – Nov 24, 2015

William Singer's role changed at Neurotrope, Inc.: executive officer, director → director

The Oct 21, 2013 filing lists William Singer as executive officer, director; the Nov 24, 2015 Form D lists director.

What this means Roles on Form D are self-reported by the issuer. A change can mean a real change in who runs the company, or just a different box ticked. Ask who makes decisions today.

Form D · Oct 21, 2013 ↗Form D · Nov 24, 2015 ↗William Singer — PartnerFacts page ↗Neurotrope, Inc. — PartnerFacts page ↗
Sources
Note · Mar 13, 2013 – Sep 5, 2013

William Singer's role changed at TAO Synergies Inc.: executive officer, director → director

The Mar 13, 2013 filing lists William Singer as executive officer, director; the Sep 5, 2013 Form D lists director.

What this means Roles on Form D are self-reported by the issuer. A change can mean a real change in who runs the company, or just a different box ticked. Ask who makes decisions today.

Form D · Mar 13, 2013 ↗Form D · Sep 5, 2013 ↗William Singer — PartnerFacts page ↗TAO Synergies Inc. — PartnerFacts page ↗
Sources
Note · Mar 13, 2013 – Oct 24, 2025

Industry group changed between filings — TAO Synergies Inc.

"Biotechnology" (Mar 13, 2013); then "Pharmaceuticals" (Sep 5, 2013); then "Biotechnology" (Feb 12, 2021 to Jun 23, 2025); then "Other" (Oct 24, 2025).

What this means The issuer described its business differently on different forms. Often it is just a different box ticked; sometimes the deal itself changed. Ask which business your money is in.

Form D · Mar 13, 2013 ↗Form D · Sep 5, 2013 ↗Form D · Feb 12, 2021 ↗Form D · Oct 24, 2025 ↗
Sources
Note · Sep 5, 2013 – Feb 12, 2021

Address moved from Plantation, FL to New York, NY — TAO Synergies Inc.

The people listed on the Sep 5, 2013 filing give Plantation, FL; on the Feb 12, 2021 filing they give New York, NY. The address now on file (1185 Avenue of The Americas, 3rd Floor, New York, NY) is a registered-agent or shared-office address used by 15 issuers.

What this means A registered agent's address is a mailbox, not where the team works. Ask where the business actually operates.

Form D · Sep 5, 2013 ↗Form D · Feb 12, 2021 ↗TAO Synergies Inc. — PartnerFacts page ↗
Sources
Note · Nov 24, 2015 – Dec 1, 2016

Address moved from Newark, NJ to New York, NY — Neurotrope, Inc.

The people listed on the Nov 24, 2015 filing give Newark, NJ; on the Dec 1, 2016 filing they give New York, NY.

What this means Businesses move; this just shows the two places and dates. If you were told one city and the forms say another, ask which is current.

Form D · Nov 24, 2015 ↗Form D · Dec 1, 2016 ↗Neurotrope, Inc. — PartnerFacts page ↗
Sources
Note · Oct 21, 2013 – Nov 24, 2015

Address moved from Plantation, FL to Newark, NJ — Neurotrope, Inc.

The people listed on the Oct 21, 2013 filing give Plantation, FL; on the Nov 24, 2015 filing they give Newark, NJ.

What this means Businesses move; this just shows the two places and dates. If you were told one city and the forms say another, ask which is current.

Form D · Oct 21, 2013 ↗Form D · Nov 24, 2015 ↗Neurotrope, Inc. — PartnerFacts page ↗
Sources
Note · Mar 13, 2013 – Oct 24, 2025

William Singer is listed with 4 different address states: IL, FL, NJ, NY

IL on 2 filings (Mar 13, 2013 to Sep 5, 2013); FL on 1 filing (Oct 21, 2013); NJ on 1 filing (Nov 24, 2015); NY on 6 filings (Dec 1, 2016 to Oct 24, 2025).

What this means The address on a Form D is usually the company's, not the person's home, so this often just reflects different companies. It can also mean a move. Nothing wrong by itself.

Form D · Mar 13, 2013 ↗Form D · Oct 21, 2013 ↗Form D · Nov 24, 2015 ↗Form D · Dec 1, 2016 ↗
Sources
What is compared

What is compared: every Form D and D/A we hold for this subject, side by side — filing dates vs. first-sale dates (the 15-day rule), amendment timing on open offerings (the yearly-amendment expectation), amounts sold, investor counts, offering amounts and minimums across amendments, industry and size bands, addresses, how each person's name and role is written, paid sellers' CRD numbers, and (for groups) where the member companies were formed and sit. Everything is as filed by the issuer; the SEC does not check it. Differences are common and usually have ordinary explanations — we show both values, the dates, and the source so you can ask. As of Oct 24, 2026.

5. Money to insiders

10 of 10 offerings report sales commissions totalling $10,117,076; 0 report finder's fees; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Oct 24, 2025 D
TAO Synergies Inc.
File 021-562058
$880,000$0$0GP NURMENKARI INC. BrokerCheck CRD 000153480 ↗EDGAR ↗
Jun 23, 2025 D
TAO Synergies Inc.
File 021-549606
$385,000$0$0GP NURMENKARI INC. BrokerCheck CRD 000153480 ↗EDGAR ↗
Sep 23, 2024 D
TAO Synergies Inc.
File 021-524733
$224,490$0$0GP Nurmenkari Inc. BrokerCheck CRD 000153480 ↗EDGAR ↗
Jun 29, 2021 D
TAO Synergies Inc.
File 021-404539
$1,149,997$0$0Katalyst Securities LLC BrokerCheck CRD 112494 ↗EDGAR ↗
Feb 12, 2021 D
TAO Synergies Inc.
File 021-389431
$1,400,333$0$0Katalyst Securities LLC BrokerCheck CRD 112494 ↗
GP Nurmenkari Inc. BrokerCheck CRD 153480 ↗		EDGAR ↗
Dec 1, 2016 D
Neurotrope, Inc.
File 021-275463
$2,450,597$0$0Katalyst Securities LLC BrokerCheck CRD 112494 ↗
GP Nurmenkari Inc. BrokerCheck CRD 153480 ↗		EDGAR ↗
Nov 24, 2015 D
Neurotrope, Inc.
File 021-251855
$1,532,992 (est.)$0$0
Mr. Ramat, identified in Item 3 as a Related Person, is entitled to receive a stock option exercisable for 100,000 shares of the common stock of the Issuer.
Katalyst Securities LLC BrokerCheck CRD 112494 ↗EDGAR ↗
Oct 21, 2013 D
Neurotrope, Inc.
File 021-204979
$108,000$0$0EDI Financial, Inc. BrokerCheck CRD 15699 ↗EDGAR ↗
Sep 5, 2013 D
TAO Synergies Inc.
File 021-202382
$1,128,337 (est.)$0$0EDI Financial, Inc. BrokerCheck CRD 15699 ↗EDGAR ↗
Mar 13, 2013 D
TAO Synergies Inc.
File 021-193191
$857,330 (est.)$0$0ALLIED BEACON PARTNERS, INC. BrokerCheck CRD 46227 ↗EDGAR ↗
How this is counted

Counts come from Form D Items 12–15 on the filings in our index (latest filing per offering; one offering = one SEC file number; an amendment updates its offering rather than adding one). "To insiders" = gross proceeds used for payments to executive officers, directors or promoters. "—" = not reported on that filing. Amounts marked (est.) were reported as estimates. "Paid to sell it" = sales compensation recipients named on that filing (Item 12), each linked to FINRA BrokerCheck when a CRD number is reported.

Counted across every filing this person is listed on (latest filing per offering, per issuer).

Deals 2

Every issuer that named William Singer on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

TS
Other

TAO Synergies Inc.

New York, NY · Mar 13, 2013 → Oct 24, 2025 · 7 filings
  • Oct 24, 2025 · D · $11,000,000 sold of $11,000,000 · 7 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jun 23, 2025 · D · $5,500,000 sold of $5,500,000 · 5 investors · min. No minimum reported · role: Director EDGAR ↗
  • Sep 23, 2024 · D · $3,207,000 sold of $3,207,000 · 4 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jun 29, 2021 · D · $12,477,342 sold of $12,477,342 · 14 investors · min. No minimum reported · role: Director EDGAR ↗
  • Feb 12, 2021 · D · $14,003,334 sold of $14,003,334 · 66 investors · min. No minimum reported · role: Director EDGAR ↗
  • Sep 5, 2013 · D · $11,533,375 sold of $12,613,375 · 130 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 13, 2013 · D · $9,073,300 sold of $15,000,000 · 26 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $14M from 130 investors (100% of the $11M target) as of the latest filing. William is listed as director, executive officer on 7 filings for this deal.

Latest filing on EDGAR ↗
Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Other / 506(b) (18,678 filings); ranges are the middle half (25th–75th percentile). Computed by PartnerFacts from SEC EDGAR Form D data as of Oct 23, 2026, 5:45 PM ET. Rows without a range: fewer than 30 comparable filings, or not a Rule 506 offering. No ranking or score.

N
Biotechnology

Neurotrope, Inc.

New York, NY · Oct 21, 2013 → Dec 1, 2016 · 3 filings
  • Dec 1, 2016 · D · $24,505,975 sold of $24,505,975 · 221 investors · min. No minimum reported · role: Director EDGAR ↗
  • Nov 24, 2015 · D · $15,329,920 sold of $20,000,000 · 136 investors · min. No minimum reported · role: Director (Vice Chairman of the Board) EDGAR ↗
  • Oct 21, 2013 · D · $1,080,000 sold of $1,080,000 · 13 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $24.5M from 221 investors (100% of the $24.5M target) as of the latest filing. William is listed as director, executive officer on 3 filings for this deal.

Latest filing on EDGAR ↗
Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Biotechnology / 506(b) (3,253 filings); ranges are the middle half (25th–75th percentile). Computed by PartnerFacts from SEC EDGAR Form D data as of Oct 23, 2026, 5:45 PM ET. Rows without a range: fewer than 30 comparable filings, or not a Rule 506 offering. No ranking or score.

People around William 21

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET.

RW
No photo found yet (own website and image search run after this page is viewed)
Person

Robert Weinstein

Executive Officer · 9 shared filings (2 issuers) · also on 5 other issuers

Robert Weinstein is on 7 issuers in total — a repeat sponsor. Their page lists every one.

BB
No photo found yet (own website and image search run after this page is viewed)
Person

Bruce T. Bernstein

Director · 6 shared filings (2 issuers) · also on 7 other issuers

Bruce T. Bernstein is on 9 issuers in total — a repeat sponsor. Their page lists every one.

JS
No photo found yet (own website and image search run after this page is viewed)
Person

Joshua Silverman

Executive Officer, Director · 6 shared filings (2 issuers) · also on 9 other issuers

Joshua Silverman is on 11 issuers in total — a repeat sponsor. Their page lists every one.

JS
No photo found yet (own website and image search run after this page is viewed)
Person

Jonathan L. Schechter

Director · 4 shared filings (1 issuer) · also on 3 other issuers

Listed on the same filings as William Singer. Their page shows their other deals.

JM
No photo found yet (own website and image search run after this page is viewed)
Person

John Abeles, MD

Director · 3 shared filings (2 issuers) · also on 2 other issuers

Listed on the same filings as William Singer. Their page shows their other deals.

JN
No photo found yet (own website and image search run after this page is viewed)
Person

James New

Executive Officer, Director · 3 shared filings (2 issuers)

Listed on the same filings as William Singer. Their page shows their other deals.

RB
No photo found yet (own website and image search run after this page is viewed)
Person

Ralph Bean

Director · 3 shared filings (2 issuers)

Listed on the same filings as William Singer. Their page shows their other deals.

DA
No photo found yet (own website and image search run after this page is viewed)
Person

Daniel A. Alkon

Executive Officer, Director · 3 shared filings (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

AT
No photo found yet (own website and image search run after this page is viewed)
Person

Alan J. Tuchman

Executive Officer, Director · 3 shared filings (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

ER
No photo found yet (own website and image search run after this page is viewed)
Person

Eric Rubenstein

Director · 2 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as William Singer. Their page shows their other deals.

JH
No photo found yet (own website and image search run after this page is viewed)
Person

Jay M. Haft

Director · 2 shared filings (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

JG
No photo found yet (own website and image search run after this page is viewed)
Person

James Gottlieb

Director · 2 shared filings (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

GP
No photo found yet (own website and image search run after this page is viewed)
Person

George Perry

Director · 2 shared filings (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

RE
No photo found yet (own website and image search run after this page is viewed)
Person

ROBERT EPHRON

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

LM
No photo found yet (own website and image search run after this page is viewed)
Person

Larry D. Altstiel, MD

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

CR
No photo found yet (own website and image search run after this page is viewed)
Person

Charles S. Ramat

Executive Officer, Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

PF
No photo found yet (own website and image search run after this page is viewed)
Person

Paul E. Freiman

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

SP
No photo found yet (own website and image search run after this page is viewed)
Person

Shana Phares

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

KG
No photo found yet (own website and image search run after this page is viewed)
Person

Kenneth Gorelick

Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

DA
No photo found yet (own website and image search run after this page is viewed)
Person

Dan Alkon

Executive Officer · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

SW
No photo found yet (own website and image search run after this page is viewed)
Person

Susanne Wilke

Executive Officer, Director · 1 shared filing (1 issuer)

Listed on the same filings as William Singer. Their page shows their other deals.

The team behind the deals

Same business address

10 other issuers file from the same address

A shared address can mean the same team, a shared office building or a registered agent. It is a lead, not a conclusion.

Registrations and other filings

Business registration (state registry / Secretary of State)

Individuals are not matched to business registrations — registries list companies, and a name alone is not enough to tie a person to one. Officers and managers appear by name inside each matched company's record on the issuer pages. Registries searched: AL (Alabama Secretary of State — Business Entity Records (arc-sos.state.al.us), searched by issuer name, data as of Oct 24, 2026); CO (Colorado Secretary of State — Business Entities in Colorado (data.colorado.gov), data as of Oct 23, 2026); CT (Connecticut Secretary of the State — Business Registry (data.ct.gov), data as of Oct 24, 2026); FL (Florida Department of State, Division of Corporations — quarterly corporate data file (Sunbiz), data as of Oct 7, 2026); NY (New York Department of State — Corporations and Other Entities (data.ny.gov: All Filings + Active Corporations), data as of Oct 20, 2026); OR (Oregon Secretary of State — Active Businesses, All (data.oregon.gov), data as of Oct 20, 2026); PA (Pennsylvania Department of State — Registered Businesses, Current (data.pa.gov), data as of Oct 6, 2026); TX (Texas Comptroller — Active Franchise Taxpayers incl. Secretary of State file data (data.texas.gov), data as of Oct 24, 2026). Registries of other states have not been searched: many publish no bulk file and require a CAPTCHA or bot challenge on their search page, which we do not bypass (Delaware, for example, offers no public bulk file).

Adviser registration (Form ADV)

None of the 2 issuers this person is listed on appears in Form ADV (searched 24,962 advisers as of Oct 2, 2026). A person is never an adviser firm; Form ADV is checked for the issuers and the management companies they are listed with.

Other offering types (Regulation A and Regulation Crowdfunding)

Searched SEC Regulation A Data Sets (Forms 1-A, 1-K, 1-Z; 2015 Q2 → 2026 Q3); SEC Crowdfunding Offerings Data Sets (Form C family; 2016 Q2 → 2026 Q3); EDGAR form index for 2026 Q3 → 2026 Q4 (51,358 records as of Oct 23, 2026, 8:41 PM ET) — nothing matched this name.

Property records none — individuals are not matched

Property records are matched to companies only, never to individuals, so none are matched to William Singer by design. Searched property records in Hillsborough County FL (Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026 + FL DOR 2026 ownership roll), Miami-Dade County FL (FL DOR 2026 ownership roll), Harris County TX (HCAD 2026 ownership roll), Dallas County TX (DCAD 2026 ownership roll), New York City ACRIS documents and PLUTO ownership rows already retrieved for other issuers, Cook County IL sale and ownership rows already retrieved for other issuers (814,874 records as of Oct 23, 2026, 8:59 PM ET) for the 2 issuers this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers William Singer is listed on: none on file. No website or social profile named in TAO Synergies Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #56,251 of 374,652 in line (1,386 issuers searched so far). One-tap searches: Look further ↓

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (New York, NY). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

LinkedIn people search ↗Instagram ↗X (Twitter) ↗Facebook ↗YouTube ↗Google ↗Google Images ↗Google News ↗Meta Ad Library ↗

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗New York WebCivil Supreme ↗Cook County Clerk of Court case search ↗Hillsborough County FL Clerk (HOVER) ↗Miami-Dade Clerk online case search ↗New Jersey state courts — find the court ↗

Securities regulators

SEC EDGAR full-text search ↗SEC action look-up ↗FINRA BrokerCheck ↗SEC IAPD adviser search ↗

Business registries

New York Secretary of State business search ↗Illinois Secretary of State business search ↗Florida Secretary of State business search ↗New Jersey Secretary of State business search ↗OpenCorporates ↗

Change history

No corrections have been requested for this page.

Every fact links to its public-record source. Plain-English notes next to a fact are our reading of that fact, not a rating. Request a correction · Facts policy

Request a correction

Free. Logged with status: received → under review → fixed / confirmed with source.

Add a response

If this is you or your firm, add a sourced explanation next to any fact. Reviewed before publishing.

Monitor this person

Members get an email when William Singer appears on a new Form D, or when a court case or SEC action is matched to them. See plans →