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Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 12:51 AM ET

Sponsor Check › Person

Douglas E. Onsi

Related person on Form D filings · address state as listed: MA · listed Apr 27, 2010 → Mar 13, 2023

8issuers
13Form D filings
2010–2023years listed

Data last updated: Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 23, 2026, 11:56 PM ET · SEC enforcement last checked: not yet

Privacy: business-related public information only. Residential addresses are never shown; only the state from the filing.

Key records

The five facts investors ask about first. Each section states what was searched and when. Items still in human review are not shown.

1. Lawsuits

None found in sources searched.

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30) — federal district + bankruptcy courts; live RECAP re-check pending. State courts: not yet searched. PACER: not searched. · Last checked Oct 23, 2026, 11:56 PM ET.

State courts: not yet searched. 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

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. — not yet searched; State securities regulators searched: AZ (Corporation Commission Securities Division), CA (DFPI — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), DE (DOJ Investor Protection Unit), TX (State Securities Board), WA (DFI) — last crawled Oct 23, 2026, 9:57 PM ET. Other states: not yet searched.

Not yet searched.

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3. Bankruptcies

None found in sources searched.

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Last checked Oct 23, 2026, 11:56 PM ET.

State courts: not yet searched. 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 are made for sponsors and sponsor groups, not individual people.

5. Money to insiders and sales commissions

1 of 12 offerings reports sales commissions totalling $400,000; 0 report finder's fees; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

SourceOffering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell it
EDGAR ↗Mar 13, 2023 D
File 021-475708
$0$0$0None listed on this filing
EDGAR ↗Nov 29, 2017 D
File 021-299736
$400,000$0$0NONE no CRD number reported
via Raymond James & Associates, Inc. (CRD 705 ↗)

NONE no CRD number reported
via Ladenburg Thalmann & Co. Inc. (CRD 505 ↗)
EDGAR ↗Jul 25, 2012 D
File 021-181753
$0$0$0None listed on this filing
EDGAR ↗Aug 8, 2011 D
File 021-164058
$0$0$0None listed on this filing
EDGAR ↗Aug 1, 2011 D
File 021-163739
$0$0$0None listed on this filing
EDGAR ↗Jun 20, 2011 D/A
File 021-160587
$0$0$0None listed on this filing
EDGAR ↗Jan 7, 2011 D
File 021-153226
$0$0$0None listed on this filing
EDGAR ↗Oct 19, 2010 D
File 021-149307
$0$0$0None listed on this filing
EDGAR ↗Oct 12, 2010 D
File 021-148861
$0$0$0None listed on this filing
EDGAR ↗Oct 12, 2010 D
File 021-148863
$0$0$0None listed on this filing
EDGAR ↗Apr 27, 2010 D
File 021-141176
$0$0$0 (est.)
The Issuer will pay HCV Management IX LLC, its Management Company, an annual management fee equal to a percentage of its committed capital or capital under management.
None listed on this filing
EDGAR ↗Jun 9, 2009 D
File 021-39714
$0$0$0 (est.)None listed on this filing

As reported by the issuer on Form D (Items 12–15), 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).

Appears on these filings

SourceIssuerRoleFiledFormOfferingSoldInvestorsMin. investment
EDGAR ↗LEAP THERAPEUTICS, INC.
group: Healthcare
Executive Officer, Director
Mr. Onsi is the Chief Executive Officer and President of the Issuer.
Mar 13, 2023D$77,219,193
similar: $1,694,259–$16,000,000
$77,219,193121
similar: 1–13
No minimum reported
similar: $10,000–$55,000
EDGAR ↗LEAP THERAPEUTICS, INC.
group: Healthcare
Executive Officer
Chief Financial Officer
Nov 29, 2017D$18,000,001
similar: $2,000,000–$19,999,994
$18,000,00114
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Apellis Pharmaceuticals, Inc.
group: Apellis
DirectorJul 25, 2012D$3,000,000$692,9959$20,000
EDGAR ↗Tensha Therapeutics, Inc.
group: Healthcare
Executive Officer, DirectorAug 8, 2011D$15,000,000$500,0002No minimum reported
EDGAR ↗Apofore Corp
group: Healthcare
Executive Officer, DirectorAug 1, 2011D$10,000,000$500,0002No minimum reported
EDGAR ↗Apellis Pharmaceuticals, Inc.
group: Apellis
DirectorJun 20, 2011D/A$4,213,000$2,967,50015$20,000
EDGAR ↗Apellis Pharmaceuticals, Inc.
group: Apellis
DirectorJun 1, 2011D$4,213,000$1,688,50011$20,000
EDGAR ↗LEAP THERAPEUTICS, INC.
group: Healthcare
Executive Officer, DirectorJan 7, 2011D$30,500,000$9,930,4004$2,930,400
EDGAR ↗Anexon, Inc.
group: Healthcare
Executive Officer, DirectorOct 19, 2010D$12,000,001$2,000,0004$41,667
EDGAR ↗Shape Pharmaceuticals, Inc.
group: Healthcare
Executive Officer, DirectorOct 12, 2010D$4,500,000$1,000,0001$400,000
EDGAR ↗Shape Pharmaceuticals, Inc.
group: Healthcare
Executive Officer, DirectorOct 12, 2010D$2,000,000$2,000,0001$2,000,000
EDGAR ↗HealthCare Ventures IX, L.P.
group: Healthcare
DirectorApr 27, 2010D$250,000,000$00$50,000
EDGAR ↗SEQUOIA PHARMACEUTICALS INCDirectorJun 9, 2009D$5,600,000$3,800,0007$513

Every row is a Form D or D/A on which the issuer listed this name as a related person. Related-person names are matched on first + last name and the address state on the filing; records that share a name but could not be tied together by a second identifier are listed separately below.

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 filings); 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.

Other listings under the same name

Separate person records under the same name, not combined with this page. Each line says whether it is listed on an issuer this record is also listed on (a second identifier); where it is not, it could be the same person or a different one.

  • Douglas Onsi — address state NJ, 1 issuer, Dec 13, 2012 → Dec 13, 2012 · no shared issuer found

Connections as of Oct 23, 2026, 5:45 PM ET

Listed alongside — 34 names on the same filings (2 management entities, 32 people)

People and management entities the issuers listed as related persons on the same Form D filings as Douglas E. Onsi. Source: the EDGAR rows in the table above.

  • HealthCare Partners IX, L.P. entity — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • HCV Management IX LLC entity — 1 shared filing (1 issuer) · role as listed: Director
  • Augustine Lawlor — 8 shared filings (5 issuers) · roles as listed: Director, Executive Officer · also listed on 11 other issuers
  • Christopher Mirabelli — 6 shared filings (4 issuers) · roles as listed: Director, Executive Officer · also listed on 7 other issuers
  • Sinclair Dunlop — 3 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • James Bradner — 3 shared filings (2 issuers) · role as listed: Director · also listed on 1 other issuer
  • Cedric Francois — 3 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 3 other issuers
  • Pascal Deschatelets — 3 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 2 other issuers
  • Marie-Claude Bernal — 3 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • David Darst — 3 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Alec Machiels — 3 shared filings (1 issuer) · role as listed: Director · also listed on 3 other issuers
  • Stephen Gillies — 2 shared filings (1 issuer) · role as listed: Director
  • William Li — 2 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Thomas Dietz — 2 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Joseph Loscalzo — 2 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Nissim Mashiach — 2 shared filings (1 issuer) · role as listed: Director
  • James Cavanaugh — 2 shared filings (1 issuer) · role as listed: Director
  • Denis Lucquin — 1 shared filing (1 issuer) · role as listed: Director
  • Daniel L. Kisner — 1 shared filing (1 issuer) · roles as listed: Director, Executive Officer · also listed on 2 other issuers
  • Muzammil Mansuri — 1 shared filing (1 issuer) · role as listed: Director
  • David Summa — 1 shared filing (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Linda Peters — 1 shared filing (1 issuer) · role as listed: Director
  • Stephanie O'Brien — 1 shared filing (1 issuer) · role as listed: Director · also listed on 7 other issuers
  • Steven Van Nurden — 1 shared filing (1 issuer) · role as listed: Director
  • Paul Marks — 1 shared filing (1 issuer) · role as listed: Director
  • John LIttlechild — 1 shared filing (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Steve Skolsky — 1 shared filing (1 issuer) · roles as listed: Director, Executive Officer · also listed on 3 other issuers
  • Christian Richard — 1 shared filing (1 issuer) · role as listed: Director
  • Christine Granfield — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • Patricia Martin — 1 shared filing (1 issuer) · role as listed: Director
  • Cynthia Sirard — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • Richard Schilsky — 1 shared filing (1 issuer) · role as listed: Director
  • Mark O'Mahony — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • John Erickson — 1 shared filing (1 issuer) · roles as listed: Director, Executive Officer

Other offering types (Regulation A and Regulation Crowdfunding)

None found in sources searched.

Sources 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 · Last checked Oct 23, 2026, 8:41 PM ET.

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