Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 7:42 AM ET

Sponsor Check › Person

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

Alexander C.E. Fleiss

Named as an officer, director or promoter on SEC Form D filings · NY · May 20, 2010 → Apr 10, 2015

1deal (issuers)

$12.5Mreported sold

33investors

5Form D filings

2010–2015years on file

Follow this person Look further ↓PDF

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:21 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Alexander C.E. Fleiss is listed as an executive officer on 5 SEC Form D filings by 1 issuer between May 2010 and Apr 2015: Rebellion Research Partners L.P. (New York, NY — pooled investment fund — 2010–2015; $12.5M reported sold to 33 investors).

What this means One deal on file with the SEC. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.

Listed alongside Jeremy Carl Newton (5 shared filings), Jonathan Knight Sturges (5 shared filings), Rebellion Research Management, LLC (5 shared filings, management entity), Spencer Gimbel Greenberg (5 shared filings) and Robert Thomas Pittman (2 shared filings).

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Alexander. 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, CT, DE, FINRA, GA, HI, ID, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NASAA, NC, ND, NH, NM, NV, OK, OR, PA, RI, SC, SD, TN, TX, VT, WA, WI, WV, WY) — none found.

What this means Nothing turned up where we looked (3 sources). That does not prove there is nothing — it means none was found in those sources on that date.

We compared 5 public filings for Alexander C.E. Fleiss and found 6 differences, 2 worth asking the sponsor about: Investor count went down between filings; Form D filed 2,263 days after the first sale; 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 Alexander C.E. Fleiss has not run yet — it is joining a line of 25,980 names; searches run around the clock at the hosts' allowed rate. Searched so far: 638 names.

Community comments are quoted as written by their authors. Sources searched: BiggerPockets forums (via DuckDuckGo, Brave, Bing and BiggerPockets search) and Reddit (search feed + public archive).

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, 2:21 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: VA (crawled Oct 23, 2026)

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 Alexander C.E. Fleiss..

State securities regulators: Securities regulators searched (3,318 actions): 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), DE DOJ Investor Protection Unit (257 actions, 1987–2026), TX State Securities Board (586 actions, 2006–2026), WA DFI (2,039 actions, 2001–2026) — last crawled Oct 23, 2026, 9:57 PM ET. No machine-readable public listing today for CO, FL, IA, IN, MN, NE, NJ, NY, OH, UT, VA (see docs/state-regulators.md).

3. Bankruptcies

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

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, 2:21 AM ET.

4. Differences between public sources

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

6 differences found between the filings for Alexander C.E. Fleiss — 2 worth asking about (compared 5 filings on Oct 24, 2026)

Worth asking · Mar 13, 2013 – Apr 10, 2015

Investor count went down between filings — Rebellion Research Partners L.P.

The Mar 13, 2013 filing reports 33 investors; the Apr 10, 2015 Form D/A reports 30 investors.

What this means Investor counts normally only grow. A smaller number can mean investors left or were refunded, or a count was corrected. Ask the sponsor what happened.

Form D/A (earlier) · Mar 13, 2013 ↗Form D/A (later) · Apr 10, 2015 ↗Rebellion Research Partners L.P. — PartnerFacts page ↗

Sources

Form D/A (earlier) · Mar 13, 2013 ↗ (Mar 13, 2013)
Form D/A (later) · Apr 10, 2015 ↗ (Apr 10, 2015)
Rebellion Research Partners L.P. — PartnerFacts page ↗ (Apr 10, 2015)

Note · Apr 10, 2015

Alexander C.E. Fleiss appears on 1 deal that stopped filing before reaching its target

Rebellion Research Partners L.P. (last filing Apr 10, 2015; $12,485,781 sold of $1,000,000,000). Each has no filing in more than two years and reported under half its target sold.

What this means An issuer whose last filing is more than two years old and reported under half its target sold. The raise may have closed early or quietly stopped. Ask what happened to each.

Rebellion Research Partners L.P. — PartnerFacts page ↗

Sources

Rebellion Research Partners L.P. — PartnerFacts page ↗ (Apr 10, 2015)

Worth asking · Dec 31, 2006 – Mar 12, 2013

Form D filed 2,263 days after the first sale — Rebellion Research Partners L.P.

The filing says the first sale was Dec 31, 2006. The Form D was filed Mar 12, 2013 — 2,263 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 2,248 days past that.

What this means The notice went in months after money was taken in. Late notices are common and carry no penalty by themselves, but it is fair to ask the sponsor why the paperwork lagged.

Form D · Mar 12, 2013 ↗Rebellion Research Partners L.P. — PartnerFacts page ↗

Sources

Form D · Mar 12, 2013 ↗ (Mar 12, 2013)
Rebellion Research Partners L.P. — PartnerFacts page ↗ (Apr 10, 2015)

Note · Dec 31, 2006 – Apr 10, 2015

No amendment in the last 12 months on an offering that may still be open — Rebellion Research Partners L.P. (latest filing Apr 10, 2015)

The latest filing for this offering is dated Apr 10, 2015 (first sale Dec 31, 2006). It reports $12,485,781 sold of $1,000,000,000 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/A · Apr 10, 2015 ↗Rebellion Research Partners L.P. — PartnerFacts page ↗

Sources

Form D/A · Apr 10, 2015 ↗ (Apr 10, 2015)
Rebellion Research Partners L.P. — PartnerFacts page ↗ (Apr 10, 2015)

Note · Dec 31, 2006 – Mar 7, 2011

No amendment in the last 12 months on an offering that may still be open — Rebellion Research Partners L.P. (latest filing Mar 7, 2011)

The latest filing for this offering is dated Mar 7, 2011 (first sale Dec 31, 2006). It reports $10,626,624 sold of $1,000,000,000 offered. No later amendment is in our index as of Oct 24, 2026.

Form D/A · Mar 7, 2011 ↗Rebellion Research Partners L.P. — PartnerFacts page ↗

Sources

Form D/A · Mar 7, 2011 ↗ (Mar 7, 2011)
Rebellion Research Partners L.P. — PartnerFacts page ↗ (Apr 10, 2015)

Note · May 20, 2010 – Mar 12, 2013

Alexander C.E. Fleiss is written 2 different ways on the filings

listed as "Alexander C. E. Fleiss" on 2 filings (from May 20, 2010), and "Alexander C.E. Fleiss" on 3 filings (from Mar 12, 2013).

What this means Same person, written differently — a middle name or suffix left off, or spelled another way. It is normal, but check that the full legal name matches your subscription documents.

Form D/A · May 20, 2010 ↗Form D · Mar 12, 2013 ↗Alexander C.E. Fleiss — PartnerFacts page ↗

Sources

Form D/A · May 20, 2010 ↗ (May 20, 2010)
Form D · Mar 12, 2013 ↗ (Mar 12, 2013)
Alexander C.E. Fleiss — PartnerFacts page ↗

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

None reported on 2 offerings — no sales commissions, finder's fees or proceeds to insiders

Per-offering detail

Offering (latest filing)	Sales commissions	Finder's fees	To insiders	Paid to sell it	Source
Apr 10, 2015 D/A Rebellion Research Partners L.P. File 021-193087	$0	$0	$0	None listed on this filing	EDGAR ↗
Mar 7, 2011 D/A Rebellion Research Partners L.P. File 021-103114	$0 (est.)	$0 (est.)	$0 All revenue has been put back into the operations of the business at this point.	None listed on this filing	EDGAR ↗

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 1

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

Pooled Investment Fund

Rebellion Research Partners L.P.

New York, NY · May 20, 2010 → Apr 10, 2015 · 5 filings

Apr 10, 2015 · D/A · $12,485,781 sold of $1,000,000,000 · 30 investors · min. $50,000 · role: Executive Officer (CEO & Chief Investment Officer) EDGAR ↗
Mar 13, 2013 · D/A · $11,253,054 sold of $1,000,000,000 · 33 investors · min. $50,000 · role: Executive Officer (Chairman, Chief Investment Officer, and Managing Partner) EDGAR ↗
Mar 12, 2013 · D · $11,253,054 sold of $1,000,000,000 · 33 investors · min. $50,000 · role: Executive Officer (Chairman, Chief Investment Officer, and Managing Partner) EDGAR ↗
Mar 7, 2011 · D/A · $10,626,624 sold of $1,000,000,000 · 28 investors · min. $100,000 · role: Executive Officer (Chairman, Managing Partner) EDGAR ↗
May 20, 2010 · D/A · $6,300,000 sold of $1,000,000,000 · 18 investors · min. $100,000 · role: Executive Officer (Chairman, Managing Partner) EDGAR ↗

Raised $12.5M from 33 investors (1% of the $1B target) as of the latest filing. Alexander is listed as executive officer on 5 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.

People around Alexander 5

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

Management entity