PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 9:48 AM ET

Sponsor Check › Sponsor group

T

Tyrogenex

One sponsor team, 2 deal companies · Palm Beach Gardens, FL

Grouped because: 6 shared people, same business address (2 issuers) (automatic match from the filings) · not the same sponsor?

2deal companies
$1.22Mreported sold
78investors
11Form D filings
2011–2016active
0new, last 12 mo
Follow this sponsor groupLook further ↓

Data last updated Oct 23, 2026, 5:45 PM ET · Latest filing in this group Feb 26, 2016 · 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

Tyrogenex is a sponsor group of 2 issuers that PartnerFacts links to one sponsor (shared people, same business address; automatic match from the filings), filing 11 Form D filings between Oct 2011 and Feb 2016.

What this means One team, 2 deal companies, about 5 years of track record in SEC filings. We link the companies because the same people or address appear on their forms — tap "Request a correction" if that is wrong.

Combined reported sold: $1.22M to 78 investors (latest filing per issuer). Industries as reported: Biotechnology (2). Issuers are based in FL (2).

What this means $1.22M raised across the group, about $16K per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.

Principal people: Cheryl Calhoun (2 issuers, director), Chris Liang (2 issuers, executive officer and director), Dennis L. Palmgren (2 issuers, director), Joseph Straight (2 issuers, executive officer), Michael Webb (2 issuers, executive officer and director) and 9 more.

What this means The person on the most companies is usually the one running the show; their page lists every deal.

Activity: 0 new offerings in the last 12 months; latest filing Feb 26, 2016.

What this means No new raise filed in the past year.

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), property records (NYC, FL, IL and TX counties) — 1 court case matching the name listed in Key records below.

What this means 1 record 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 11 public filings for Tyrogenex and found 9 differences, 1 worth asking the sponsor about: 6 Form Ds were filed more than 15 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 Tyrogenex has not run yet — it is joining a line of 41,068 names; 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

1 case: 1 dismissed

Webb v. Xcovery Holding Co. LLC dismissed
District Court, D. Massachusetts · No. 1:16-cv-12243 · Filed Nov 4, 2016 · Closed Mar 5, 2018 · Nature of suit: 190 Other contract actions
Role of Xcovery Holding Co. LLC: Defendant · Outcome: Terminated 2018-03-05 — FJC Integrated Database disposition: Dismissed: settled Docket on CourtListener ↗
exact company name; name has one distinctive word; court in MA (not the issuer's state)
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.

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.

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 Tyrogenex..

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

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, 2:16 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.

4. Differences between public sources

No comparisons published

What is compared

No public statement by this sponsor group has been collected yet, so there is nothing to compare. Sources compared: the sponsor's own website (known from the issuer's own filings — Form C issuer website, EDGAR company profile — an approved profile claim or Form ADV Item 1.I of its matched adviser) · SEC Form D · SEC Form ADV (IAPD) · Internet Archive · No website is on file for this sponsor group yet.

9 differences found between the filings for Tyrogenex — 1 worth asking about (compared 11 filings on Oct 24, 2026)

Note · Feb 26, 2016 – Apr 6, 2017

FL lists TYROGENEX, INC. as withdrawn as of Apr 6, 2017 — a Form D was filed Feb 26, 2016

The FL business registry lists TYROGENEX, INC. (entity no. F06000004328) as "Inactive" / "WITHDRAWAL" as of Apr 6, 2017, but TYROGENEX, INC. (member issuer) was still raising money on Feb 26, 2016, when a Form D was filed within 24 months of that status date. Ask why.

What this means The state lists this company as not in existence or not in good standing as of the date shown, but a Form D was filed near or after that date. Registries lag, companies get reinstated, and some funds wind down right after their last filing — ask the sponsor whether the entity is in good standing today.

FL business registry — TYROGENEX, INC. (entity no. F06000004328) ↗Dataset row we read (Florida Department of State, Division of Corporations — quarterly corporate data file (Sunbiz)) ↗Form D · Feb 26, 2016 ↗TYROGENEX, INC. — PartnerFacts page ↗
Sources
Note · May 8, 2015

Last filing May 8, 2015 with 31% of the target sold — XCOVERY HOLDING Co LLC

XCOVERY HOLDING Co LLC (last filing May 8, 2015; $2,420,000 sold of $7,749,000). There is no filing in more than two years and the last one reported under half the 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.

XCOVERY HOLDING Co LLC — PartnerFacts page ↗EDGAR filer page ↗
Sources
Worth asking · Mar 18, 2011 – Apr 10, 2014

6 Form Ds were filed more than 15 days after the first sale

Form D filed 332 days after the first sale — XCOVERY HOLDING Co LLC · Form D filed 332 days after the first sale — TYROGENEX, INC. · Form D filed 268 days after the first sale — TYROGENEX, INC. · Form D filed 227 days after the first sale — XCOVERY HOLDING Co LLC · Form D filed 22 days after the first sale — XCOVERY HOLDING Co LLC · and 1 more

What this means Late notices are common and carry no penalty by themselves. A pattern of late paperwork is worth asking the sponsor about.

Form D · Apr 10, 2014 ↗XCOVERY HOLDING Co LLC — PartnerFacts page ↗Form D · Apr 10, 2014 ↗TYROGENEX, INC. — PartnerFacts page ↗
Sources
Note · Mar 14, 2012 – Feb 26, 2016

8 offerings have no amendment in the last 12 months and may still be open

No amendment in the last 12 months on an offering that may still be open — TYROGENEX, INC. (latest filing Feb 26, 2016) · No amendment in the last 12 months on an offering that may still be open — XCOVERY HOLDING Co LLC (latest filing May 8, 2015) · No amendment in the last 12 months on an offering that may still be open — XCOVERY HOLDING Co LLC (latest filing Apr 18, 2014) · No amendment in the last 12 months on an offering that may still be open — TYROGENEX, INC. (latest filing Apr 18, 2014) · No amendment in the last 12 months on an offering that may still be open — XCOVERY HOLDING Co LLC (latest filing Apr 10, 2014) · and 3 more

What this means SEC rules expect a yearly amendment while an offering is still going. Ask the sponsor which of these raises have closed.

Form D · Feb 26, 2016 ↗TYROGENEX, INC. — PartnerFacts page ↗Form D/A · May 8, 2015 ↗XCOVERY HOLDING Co LLC — PartnerFacts page ↗
Sources
Note · Jul 23, 2014 – May 8, 2015

Chris Liang's role changed at XCOVERY HOLDING Co LLC: executive officer, director → director

The Jul 23, 2014 filing lists Chris Liang as executive officer, director; the May 8, 2015 Form D/A 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 · Jul 23, 2014 ↗Form D/A · May 8, 2015 ↗Chris Liang — PartnerFacts page ↗XCOVERY HOLDING Co LLC — PartnerFacts page ↗
Sources
Note · Jul 23, 2014 – May 8, 2015

Cheryl Calhoun's role changed at XCOVERY HOLDING Co LLC: executive officer → director

The Jul 23, 2014 filing lists Cheryl Calhoun as executive officer; the May 8, 2015 Form D/A 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 · Jul 23, 2014 ↗Form D/A · May 8, 2015 ↗Cheryl Calhoun — PartnerFacts page ↗XCOVERY HOLDING Co LLC — PartnerFacts page ↗
Sources
Note · Oct 31, 2011 – Dec 14, 2011

Dennis L. Palmgren is written 2 different ways on the filings

listed as "Dennis L. Palmgren" on 8 filings (from Oct 31, 2011), and "Dennis Palmgren" on 2 filings (from Dec 14, 2011).

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 · Oct 31, 2011 ↗Form D · Dec 14, 2011 ↗Dennis L. Palmgren — PartnerFacts page ↗
Sources
Note · Apr 18, 2014 – Feb 26, 2016

Address moved from West Palm Beach, FL to Palm Beach Gardens, FL — TYROGENEX, INC.

The people listed on the Apr 18, 2014 filing give West Palm Beach, FL; on the Feb 26, 2016 filing they give Palm Beach Gardens, FL.

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 · Apr 18, 2014 ↗Form D · Feb 26, 2016 ↗TYROGENEX, INC. — PartnerFacts page ↗
Sources
Note · Jul 23, 2014 – May 8, 2015

Address moved from West Palm Beach, FL to Palm Beach Gardens, FL — XCOVERY HOLDING Co LLC

The people listed on the Jul 23, 2014 filing give West Palm Beach, FL; on the May 8, 2015 filing they give Palm Beach Gardens, FL.

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 · Jul 23, 2014 ↗Form D/A · May 8, 2015 ↗XCOVERY HOLDING Co LLC — PartnerFacts page ↗
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

7 of 10 offerings report sales commissions totalling $396,305; 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
Feb 26, 2016 D
TYROGENEX, INC.
File 021-258194
$24,477 (est.)$0$0 (est.)Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via TAG Healthcare Advisors, LLC
EDGAR ↗
May 8, 2015 D/A
XCOVERY HOLDING Co LLC
File 021-221672
$0$0$0None listed on this filingEDGAR ↗
Apr 18, 2014 D
TYROGENEX, INC.
File 021-215895
$25,626$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via The Alberleen Group LLC
EDGAR ↗
Apr 18, 2014 D
XCOVERY HOLDING Co LLC
File 021-215898
$11,360$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via The Alberleen Group LLC
EDGAR ↗
Apr 10, 2014 D
TYROGENEX, INC.
File 021-215309
$124,245$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via The Alberleen Group LLC
EDGAR ↗
Apr 10, 2014 D
XCOVERY HOLDING Co LLC
File 021-215316
$60,597$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via The Alberleen Group LLC
EDGAR ↗
Apr 5, 2012 D
TYROGENEX, INC.
File 021-176234
$75,000$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via Robert Blake Murphy (CRD 144981 ↗)
EDGAR ↗
Apr 5, 2012 D
XCOVERY HOLDING Co LLC
File 021-176237
$75,000$0$0Cuttone & Co., Inc. BrokerCheck CRD 33038 ↗
via Robert Blake Murphy (CRD 144981 ↗)
EDGAR ↗
Dec 14, 2011 D
TYROGENEX, INC.
File 021-170034
$0$0$0None listed on this filingEDGAR ↗
Oct 31, 2011 D
XCOVERY HOLDING Co LLC
File 021-168040
$0$0$0None listed on this filingEDGAR ↗
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 all 2 issuers in this group — every filing in our index, latest filing per offering (SEC file number).

Property records 0 documents · 0 ownership records · last checked Oct 24, 2026, 9:34 AM ET · NYC and Cook County lookup still to run

0 recorded documents and 0 ownership records matched to Tyrogenex in the sources searched.

Not found in sources searched as of Oct 24, 2026, 9:34 AM ET: Hillsborough County FL Clerk of Court Official Records daily index (publicrec.hillsclerk.com D/P/M files), 2 daily files (Oct 14, 2026 to Oct 15, 2026) — loaded Oct 23, 2026, 8:59 PM ET; Harris County TX (HCAD ownership rolls 2005–2026) — 1,032,426 records, loaded Oct 24, 2026, 8:00 AM ET; Dallas County TX (DCAD ownership rolls 2021–2027) — 285,535 records, loaded Oct 24, 2026, 8:20 AM ET; Hillsborough County FL (FL DOR 2026 ownership roll + Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026), Miami-Dade County FL (FL DOR 2026 ownership roll), Broward County FL (FL DOR 2026 ownership roll), Palm Beach County FL (FL DOR 2026 ownership roll) — 514,336 records, loaded Oct 24, 2026, 8:25 AM ET; King County WA (Assessor sale records 0000-00-00–2026-10-14; no owner-of-record names published) — 538,619 records, loaded Oct 24, 2026, 8:27 AM ET; Cook County IL (Assessor sale records 1982–2026 + ownership rolls 2014–2026) — 1,031,843 records, loaded Oct 24, 2026, 9:05 AM ET. Still to be looked up for this group: NYC ACRIS via NYC Open Data (Real Property Parties 636b-3b5g, Master bnx9-e6tj, Legals 8h5j-fqxa, Document Control Codes 7isb-wh4c) · NYC PLUTO ownership via NYC Open Data (64uk-42ks) · Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp). Records in other counties, and recorder indexes we do not yet cover, were not searched.

Property records coverage: New York City (ACRIS recorded documents and PLUTO ownership, looked up per issuer when its page is viewed; re-checked when the page is viewed again more than 30 days after the last check); Harris County TX (ownership only, no deed, mortgage or sale records; HCAD ownership rolls 2005–2026); Dallas County TX (ownership only, no deed, mortgage or sale records; DCAD ownership rolls 2021–2027); Hillsborough County FL (FL DOR 2026 ownership roll + Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026), Miami-Dade County FL (FL DOR 2026 ownership roll), Broward County FL (FL DOR 2026 ownership roll), Palm Beach County FL (FL DOR 2026 ownership roll); King County WA (Assessor sale records 0000-00-00–2026-10-14; no owner-of-record names published); Cook County IL (Assessor sale records 1982–2026 + ownership rolls 2014–2026); also looked up per issuer when its page is viewed. Recorder indexes (party names on deeds, mortgages and liens) in TX, AZ, NV, CA and WA counties and outside the Clerk index in FL, mortgages and liens outside NYC and Hillsborough County, lis pendens and foreclosure notices everywhere, Los Angeles County CA, Clark County NV, New York City bulk pass (not finished; per-issuer lookups only so far), Maricopa County AZ (loader ready; commercial-purpose statement not yet filed), Salt Lake County UT, and all other counties are not covered — not searched. Last refresh by source: Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp) Oct 24, 2026, 9:05 AM ET; Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp) Oct 24, 2026, 8:30 AM ET; King County WA Assessor Real Property Sales extract (EXTR_RPSale.csv) Oct 24, 2026, 8:27 AM ET; Florida DOR NAL roll (Palm Beach 60) Oct 24, 2026, 8:25 AM ET; Florida DOR NAL roll (Broward 16) Oct 24, 2026, 8:24 AM ET; Florida DOR NAL roll (Dade 23) Oct 24, 2026, 8:23 AM ET; Florida DOR NAL roll (Hillsborough 39) Oct 24, 2026, 8:21 AM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV Oct 24, 2026, 8:20 AM ET; Harris County Appraisal District real_acct.txt Oct 24, 2026, 8:00 AM ET; Hillsborough County FL Clerk daily index Oct 23, 2026, 8:59 PM ET. NYC and Cook County are also looked up per issuer when its page is viewed; the most recent such lookup on this site finished Oct 24, 2026, 3:30 AM ET. Parties are named as the recorder's index names them (role suffixes as recorded); no address, account number or trust date is shown for an individual, and individual owners of record (home ownership) are not matched or shown. Items still in human review are not shown.

Issuers in this group

Why each issuer is here is stated in the "Linked by" column. Low-confidence links are never shown — they wait for human review.

SourceIssuerLinked byLocationIndustryFilingsSold (max)InvestorsMin. investment (latest filing)Active
EDGAR ↗XH XCOVERY HOLDING Co LLCshared people, same business addressPalm Beach Gardens, FLBiotechnology6$2,420,000
offering $4,000,000 · similar: $2,000,000–$19,999,994
38
similar: 2–16
No minimum reported
similar: $10,000–$50,000
2011–2015
EDGAR ↗T TYROGENEX, INC.shared people, same business addressPalm Beach Gardens, FLBiotechnology5$8,218,436
offering $12,000,000 · similar: $2,000,000–$19,999,994
40
similar: 2–16
No minimum reported
similar: $10,000–$50,000
2011–2016

"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.

Timeline of offerings

SourceFiledIssuerFormIndustryOfferedSold
EDGAR ↗Feb 26, 2016TYROGENEX, INC.DBiotechnology$12,000,000$543,952
EDGAR ↗May 8, 2015XCOVERY HOLDING Co LLCD/ABiotechnology$4,000,000$675,000
EDGAR ↗Jul 23, 2014XCOVERY HOLDING Co LLCDBiotechnology$4,000,000$675,000
EDGAR ↗Apr 18, 2014XCOVERY HOLDING Co LLCDBiotechnology$7,749,000$2,376,170
EDGAR ↗Apr 18, 2014TYROGENEX, INC.DBiotechnology$8,634,488$8,218,436
EDGAR ↗Apr 10, 2014XCOVERY HOLDING Co LLCDBiotechnology$2,370,000$2,082,549
EDGAR ↗Apr 10, 2014TYROGENEX, INC.DBiotechnology$3,555,000$3,294,909
EDGAR ↗Apr 5, 2012XCOVERY HOLDING Co LLCDBiotechnology$3,500,000$1,570,000
EDGAR ↗Apr 5, 2012TYROGENEX, INC.DBiotechnology$3,500,000$1,590,000
EDGAR ↗Dec 14, 2011TYROGENEX, INC.DBiotechnology$970,000$970,000
EDGAR ↗Oct 31, 2011XCOVERY HOLDING Co LLCDBiotechnology$2,420,000$2,420,000

Activity: 0 new offerings in the last 12 months across all issuers in this group (new offering = a Form D that is not an amendment, D/A) · most recent filing Feb 26, 2016. Industry history, as reported on each offering's latest filing: All 10 offerings reported: Biotechnology (2011–2016).

People across the group

NameRolesIssuers hereFirst → last listed
CL Chris LiangExecutive Officer, Director2Oct 31, 2011 → Feb 26, 2016
CC Cheryl CalhounDirector2Jul 23, 2014 → Feb 26, 2016
JS Joseph StraightExecutive Officer2May 8, 2015 → Feb 26, 2016
MW Michael WebbExecutive Officer, Director2May 8, 2015 → Feb 26, 2016
DP Dennis L. PalmgrenDirector2Oct 31, 2011 → May 8, 2015
SS Sheridan G. SnyderExecutive Officer, Director2Oct 31, 2011 → May 8, 2015
VP Vinzenz PloererDirector1Feb 26, 2016 → Feb 26, 2016
JI John Irwin IIIDirector1Feb 26, 2016 → Feb 26, 2016
AG Adam GoodfriendDirector1Feb 26, 2016 → Feb 26, 2016
TB Todd BradyDirector1Feb 26, 2016 → Feb 26, 2016
SS Sheridan SnyderDirector1Feb 26, 2016 → Feb 26, 2016
LZ Lingyu ZhuDirector1May 8, 2015 → May 8, 2015
SS Sheridan D. SnyderExecutive Officer1Dec 14, 2011 → Apr 18, 2014
TS TERI A. SWIFTExecutive Officer1Dec 14, 2011 → Apr 5, 2012

Business registration (state registry / Secretary of State)

2 of 2 issuers have a matched state registry record — records by status: withdrawn 2.

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). A registry listing is the state's own record of the entity; it says nothing about the offering itself.

Adviser registration (Form ADV)

Searched SEC Form ADV bulk data (registered + exempt reporting advisers) (24,962 records as of Oct 2, 2026, 8:00 AM ET) — nothing matched Tyrogenex.

Meta advertising

No Meta Pixel ids or Facebook / Instagram page links on file for Tyrogenex as of Oct 24, 2026 — the sponsor website is read for them once it is on file (runs automatically). Meta Ad Library: not searched by PartnerFacts (no API access); a one-tap Ad Library search is under Look further.

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.

Public profiles and social

No website or social profile named in Tyrogenex's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #290,487 of 374,652 in line (1,386 issuers searched so far). One-tap searches: Look further ↓

Export this report as PDF · Premium

Request diligence pack (Premium) PartnerFacts asks the sponsor for the standard information pack and delivers it to you labelled "provided by the sponsor".

Change history

No corrections have been requested for this page.

Request a correction

Free. Covers the grouping itself or any record shown here. Logged with status: received → under review → fixed / confirmed with source.

Sponsor response

Add a sourced explanation next to any fact. Reviewed before publishing.

Grouping is PartnerFacts' inference from public filings (shared related persons, management entities, business address). Everything else on this page is drawn from the filings themselves. Not the same sponsor? Request a correction.

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (outside the US (as filed: PALM BEACH GARDENS), FL). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

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

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗Hillsborough County FL Clerk (HOVER) ↗Miami-Dade Clerk online case search ↗

Securities regulators

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

Business registries

Florida Secretary of State business search ↗OpenCorporates ↗