PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 1:49 AM ET

Sponsor Check › Person

William Donald Thomson

Related person on Form D filings · address state/country as listed: Bermuda (as filed: D0) · listed Feb 3, 2010 → Nov 28, 2012

10issuers
30Form D filings
2010–2012years 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.

No SEC search has run yet for this person.

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

7 of 10 offerings report sales commissions totalling $13,571,993; 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 ↗Nov 28, 2012 D/A
File 021-186941
$0$0$0None listed on this filing
EDGAR ↗Nov 9, 2012 D/A
File 021-150035
$46,218$0$0Deutsche Bank Securities Inc. BrokerCheck CRD 2525 ↗
EDGAR ↗Nov 8, 2012 D/A
File 021-130823
$14,630 (est.)$0 (est.)$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Nov 7, 2012 D/A
File 021-148333
$295,241$0$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Nov 7, 2012 D/A
File 021-148320
$4,388,441$0$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Nov 7, 2012 D/A
File 021-149590
$643,927$0$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Nov 7, 2012 D/A
File 021-149593
$8,015,982$0$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Nov 7, 2012 D/A
File 021-149595
$167,554$0$0BNY Mellon, N.A. no CRD number reported
EDGAR ↗Feb 22, 2012 D/A
File 021-138949
$0$0$0
The fund charges a management fee that is described in the fund's offering documents.
None listed on this filing
EDGAR ↗Feb 3, 2010 D/A
File 021-127030
$0$0$0None 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 ↗JENOP GLOBAL HEALTHCARE FUND Ltd
group: Bridgeport
DirectorNov 28, 2012D/AIndefinite$13,745,00025$250,000
EDGAR ↗JENOP GLOBAL HEALTHCARE FUND Ltd
group: Bridgeport
DirectorNov 14, 2012DIndefinite$13,745,00025$250,000
EDGAR ↗Optima Emerging Markets Fund LTD
group: Bridgeport
DirectorNov 9, 2012D/AIndefinite$1,375,0005$250,000
EDGAR ↗Cuttyhunk Fund II Ltd
group: Bridgeport
DirectorNov 8, 2012D/AIndefinite$1,328,0004$250,000
EDGAR ↗Dorset Energy Fund Ltd
group: Bridgeport
DirectorNov 7, 2012D/AIndefinite$192,196,00071$500,000
EDGAR ↗Optima Global Trading Fund Ltd
group: Bridgeport
DirectorNov 7, 2012D/AIndefinite$34,464,00033$250,000
EDGAR ↗Platinum Japan Fund Ltd
group: Bridgeport
DirectorNov 7, 2012D/AIndefinite$11,331,00031$250,000
EDGAR ↗Platinum Fund Ltd
group: Bridgeport
DirectorNov 7, 2012D/AIndefinite$158,429,000141$500,000
EDGAR ↗Optima Fund Ltd
group: Bridgeport
DirectorNov 7, 2012D/AIndefinite$57,705,00080$500,000
EDGAR ↗Optima Emerging Markets Fund LTD
group: Bridgeport
DirectorMar 22, 2012D/AIndefinite$2,527,0006$250,000
EDGAR ↗Cumber International S.A.DirectorFeb 22, 2012D/AIndefinite$1,649,7156$100,000
EDGAR ↗Optima Emerging Markets Fund LTD
group: Bridgeport
DirectorOct 27, 2011D/AIndefinite$2,527,0006$250,000
EDGAR ↗Dorset Energy Fund Ltd
group: Bridgeport
DirectorOct 26, 2011D/AIndefinite$176,133,00078$500,000
EDGAR ↗Platinum Fund Ltd
group: Bridgeport
DirectorOct 26, 2011D/AIndefinite$159,039,000151$500,000
EDGAR ↗Optima Global Trading Fund Ltd
group: Bridgeport
DirectorOct 26, 2011D/AIndefinite$28,397,00019$250,000
EDGAR ↗Optima Fund Ltd
group: Bridgeport
DirectorOct 26, 2011D/AIndefinite$56,023,00090$500,000
EDGAR ↗Cuttyhunk Fund II Ltd
group: Bridgeport
DirectorOct 26, 2011D/AIndefinite$2,054,0006$250,000
EDGAR ↗Cumber International S.A.DirectorFeb 22, 2011D/AIndefinite$12,761,9179$100,000
EDGAR ↗Optima Emerging Markets Fund LTD
group: Bridgeport
DirectorNov 4, 2010DIndefinite$8,176,0008$250,000
EDGAR ↗Cuttyhunk Fund II Ltd
group: Bridgeport
DirectorNov 4, 2010D/AIndefinite$1,818,0005$250,000
EDGAR ↗Platinum Fund Ltd
group: Bridgeport
DirectorNov 3, 2010D/AIndefinite$190,761,000161$500,000
EDGAR ↗Platinum Japan Fund Ltd
group: Bridgeport
DirectorOct 26, 2010DIndefinite$12,234,00028$250,000
EDGAR ↗Platinum Fund Ltd
group: Bridgeport
DirectorOct 26, 2010DIndefinite$190,761,000161$500,000
EDGAR ↗Dorset Energy Fund Ltd
group: Bridgeport
DirectorOct 26, 2010DIndefinite$196,170,00077$500,000
EDGAR ↗Optima Global Trading Fund Ltd
group: Bridgeport
DirectorOct 25, 2010D/AIndefinite$21,605,00011$250,000
EDGAR ↗Optima Fund Ltd
group: Bridgeport
DirectorOct 25, 2010D/AIndefinite$104,514,000114$500,000
EDGAR ↗Optima Global Trading Fund Ltd
group: Bridgeport
DirectorSep 29, 2010DIndefinite$19,785,61210$250,000
EDGAR ↗Optima Fund Ltd
group: Bridgeport
DirectorSep 29, 2010DIndefinite$110,933,388118$500,000
EDGAR ↗Cumber International S.A.DirectorFeb 23, 2010DIndefinite$11,223,5115$100,000
EDGAR ↗Khronos Group Ltd. - Liquid Opportunities Fund Segregated Account
group: Khronos
DirectorFeb 3, 2010D/AIndefinite$173,1442$1,000,000

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.

Market context: not shown for these offerings — fewer than 30 Form D filings in the last 5 years share the offering's industry and exemption, or the exemption claimed is not Rule 506(b)/506(c). 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.

  • William Thomson — address state Bermuda (as filed: D0), Cayman Islands (as filed: E9), 3 issuers, Mar 13, 2009 → Jul 26, 2010 · no shared issuer found
  • William J. Thomson — address state United Kingdom (as filed: X0), 2 issuers, Sep 23, 2009 → Sep 23, 2009 · no shared issuer found
  • William M. Thomson — address state NC, 2 issuers, Feb 22, 2022 → Mar 23, 2026 · no shared issuer found
  • William Thomson — address state CA, 1 issuer, Apr 22, 2010 → Apr 22, 2010 · no shared issuer found
  • WILLIAM E THOMSON — address state British Columbia, Canada (as filed: A1), 1 issuer, Aug 24, 2011 → Aug 24, 2011 · no shared issuer found
  • William Thomson — address state Ontario, Canada (as filed: A6), 1 issuer, Sep 4, 2019 → Sep 4, 2019 · no shared issuer found
  • William D. Thomson — address state Cayman Islands (as filed: E9), 1 issuer, Apr 13, 2011 → Apr 13, 2011 · no shared issuer found

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

Listed alongside — 19 names on the same filings (2 management entities, 17 people)

People and management entities the issuers listed as related persons on the same Form D filings as William Donald Thomson. Source: the EDGAR rows in the table above.

  • Optima Management Partners L.P. entity — 12 shared filings (4 issuers) · role as listed: Promoter
  • Optima Haskins Management Partners L.P. entity — 2 shared filings (1 issuer) · role as listed: Promoter
  • Geoffrey Manfred Lewis — 26 shared filings (8 issuers) · role as listed: Director · also listed on 8 other issuers
  • Robert Richard Rans — 26 shared filings (8 issuers) · role as listed: Director · also listed on 2 other issuers
  • Thomas Haskins Davis — 23 shared filings (7 issuers) · role as listed: Director · also listed on 27 other issuers
  • Ronald Aaron Lake — 23 shared filings (7 issuers) · role as listed: Director · also listed on 1 other issuer
  • Dennie Dixon Boardman — 17 shared filings (7 issuers) · role as listed: Director · also listed on 1 other issuer
  • John C.R. Collis — 17 shared filings (7 issuers) · role as listed: Director · also listed on 12 other issuers
  • Optima Fund Management Limited Partnership — 12 shared filings (3 issuers) · role as listed: Promoter · also listed on 3 other issuers
  • Willy Weber — 3 shared filings (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Pierre Andre Genillard — 3 shared filings (1 issuer) · role as listed: Director
  • Nancy Sue Littman — 3 shared filings (1 issuer) · role as listed: Director
  • Richard Van Doren — 3 shared filings (1 issuer) · role as listed: Director
  • Kenneth Moore — 2 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Nicholas von Speyr — 2 shared filings (1 issuer) · role as listed: Director
  • Rafael Mayer — 1 shared filing (1 issuer) · role as listed: Director · also listed on 7 other issuers
  • Piero DiCapua — 1 shared filing (1 issuer) · role as listed: Director
  • Herbert M. Selzer — 1 shared filing (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Jan J. Spiering — 1 shared filing (1 issuer) · role as listed: Director · also listed on 12 other issuers

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.

Export this report as PDF (members · included free during the launch period)

Change history

No corrections have been requested for this page.

Facts from public records only, each linked to its source. No ratings, no opinions. 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 Donald Thomson appears on a new Form D, or when a court case or SEC action is matched to them. See plans →