PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 12:07 AM ET

Sponsor Check › Person

David Guyer

Related person on Form D filings · address states as listed: MA, NJ, NY, X0 · listed Jun 16, 2009 → Apr 10, 2019

9issuers
32Form D filings
2009–2019years 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

2 of 25 offerings report sales commissions totalling $5,750,000; 1 reports finder's fees totalling $30,000; 1 reports proceeds to related persons totalling $450,000. (includes amounts the issuer reported as estimates)

SourceOffering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell it
EDGAR ↗Apr 24, 2026 D
File 021-581853
$0$30,000$0Chatsworth Securities LLC BrokerCheck CRD 40804 ↗
EDGAR ↗Jan 13, 2025 D/A
File 021-530215
$5,000,000 (est.)$0$0Leerink Partners LLC BrokerCheck CRD 39011 ↗
EDGAR ↗Aug 19, 2021 D
File 021-410579
$0$0$0None listed on this filing
EDGAR ↗Apr 10, 2019 D/A
File 021-215787
$0$0$0None listed on this filing
EDGAR ↗Nov 2, 2018 D
File 021-324993
$0$0$0None listed on this filing
EDGAR ↗Dec 23, 2013 D/A
File 021-176419
$0$0$0None listed on this filing
EDGAR ↗Jun 3, 2013 D
File 021-197362
$0$0$0None listed on this filing
EDGAR ↗Mar 19, 2013 D
File 021-193562
$0$0$0None listed on this filing
EDGAR ↗Jan 3, 2013 D
File 021-189331
$0$0$0None listed on this filing
EDGAR ↗Jul 3, 2012 D
File 021-180685
$0$0$0None listed on this filing
EDGAR ↗Mar 6, 2012 D/A
File 021-152532
$0$0$0 (est.)None listed on this filing
EDGAR ↗Mar 6, 2012 D
File 021-174381
$0$0$0None listed on this filing
EDGAR ↗Dec 12, 2011 D
File 021-169899
$0$0$0None listed on this filing
EDGAR ↗Jul 14, 2011 D
File 021-162866
$0$0$0None listed on this filing
EDGAR ↗Apr 20, 2011 D
File 021-158672
$0$0$0 (est.)None listed on this filing
EDGAR ↗Mar 18, 2011 D
File 021-156981
$0$0$0None listed on this filing
EDGAR ↗Feb 10, 2011 D
File 021-155170
$0$0$0None listed on this filing
EDGAR ↗Dec 20, 2010 D
File 021-152213
$0$0$0None listed on this filing
EDGAR ↗Jun 11, 2010 D
File 021-143333
$0$0$0None listed on this filing
EDGAR ↗Apr 30, 2010 D
File 021-141389
$0$0$0 (est.)None listed on this filing
EDGAR ↗Apr 27, 2010 D
File 021-141171
$0$0$0None listed on this filing
EDGAR ↗Dec 18, 2009 D
File 021-107978
$0$0$0None listed on this filing
EDGAR ↗Oct 30, 2009 D
File 021-90990
$0$0$0None listed on this filing
EDGAR ↗Mar 19, 2009 D
File 021-54969
$0$0$0None listed on this filing
EDGAR ↗Sep 29, 2008 D
File 021-76287
$750,000 (est.)$0$450,000 (est.)MTS Securities, LLC BrokerCheck CRD 104059 ↗
via MTS Securities, MTS (CRD 104059 ↗)

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 ↗Life Biosciences LLCDirectorApr 24, 2026D$31,000,002
similar: $500,000–$7,000,000
$31,000,0028
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Aviceda Therapeutics, Inc.DirectorJan 13, 2025D/A$207,499,882
similar: $2,000,000–$19,999,994
$74,999,94017
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Aviceda Therapeutics, Inc.DirectorNov 22, 2024D$200,000,000
similar: $2,000,000–$19,999,994
$00
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Eyebiotech LtdExecutive OfficerAug 19, 2021D$486
similar: $1,694,259–$16,000,000
$4861
similar: 1–13
No minimum reported
similar: $10,000–$55,000
EDGAR ↗PanOptica, Inc.DirectorApr 10, 2019D/A$47,281,615
similar: $2,000,000–$19,999,994
$40,681,6156
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.Executive Officer, DirectorNov 2, 2018D$11,694,883
similar: $2,000,000–$19,999,994
$11,399,8942
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗PanOptica, Inc.DirectorOct 16, 2017D/A$47,281,615
similar: $2,000,000–$19,999,994
$30,208,6166
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗PanOptica, Inc.DirectorMay 27, 2016D/A$27,131,616
similar: $2,000,000–$19,999,994
$23,883,1955
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗PanOptica, Inc.DirectorApr 17, 2014D$45,465,696
similar: $2,000,000–$19,999,994
$12,625,6995
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗ALLOCURE INCDirectorDec 23, 2013D/A$26,500,008
similar: $2,000,000–$19,999,994
$26,500,0085
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.Executive Officer, DirectorJun 3, 2013D$50,000,000
similar: $2,000,000–$19,999,994
$16,666,6687
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.DirectorMar 19, 2013D$1
similar: $2,000,000–$19,999,994
$11
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.DirectorJan 3, 2013D$1
similar: $2,000,000–$19,999,994
$11
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.DirectorJul 3, 2012D$1
similar: $2,000,000–$19,999,994
$11
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗PanOptica, Inc.DirectorMar 6, 2012D/A$36,147,034
similar: $2,000,000–$19,999,994
$16,580,3685
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorMar 6, 2012D$17,110,000
similar: $2,000,000–$19,999,994
$16,000,0008
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorDec 12, 2011D$4,350,000
similar: $2,000,000–$19,999,994
$4,000,00010
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorJul 14, 2011D$6,000,000
similar: $2,000,000–$19,999,994
$6,000,00010
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Link Medicine CorpDirectorApr 20, 2011D$4,808,500
similar: $2,000,000–$19,999,994
$4,808,50016
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorMar 18, 2011D$4,500,000
similar: $2,000,000–$19,999,994
$3,000,00010
similar: 2–16
$6,916
similar: $10,000–$50,000
EDGAR ↗NEOVISTA INCDirectorFeb 10, 2011D$37,879,999
similar: $829,831–$9,999,998
$33,784,54519
similar: 2–15
$1
similar: $10,000–$54,310
EDGAR ↗PanOptica, Inc.DirectorDec 27, 2010D$30,000,000
similar: $2,000,000–$19,999,994
$10,533,3335
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorDec 20, 2010D$5,000,000
similar: $2,000,000–$19,999,994
$5,000,00010
similar: 2–16
$11,526
similar: $10,000–$50,000
EDGAR ↗NEOVISTA INCDirectorJun 11, 2010D$12,012,000
similar: $500,000–$7,000,000
$3,203,20018
similar: 2–14
$1
similar: $5,000–$50,000
EDGAR ↗Link Medicine CorpDirectorApr 30, 2010D$20,000,003
similar: $2,000,000–$19,999,994
$20,000,0039
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗NEOVISTA INCDirectorApr 27, 2010D$3,003,000
similar: $500,000–$7,000,000
$3,003,00017
similar: 2–14
$1
similar: $5,000–$50,000
EDGAR ↗Ophthotech Corp.DirectorDec 18, 2009D$30,000,000
similar: $2,000,000–$19,999,994
$15,000,0007
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorOct 30, 2009D$49,940,274
similar: $2,000,000–$19,999,994
$37,940,27410
similar: 2–16
$87,302
similar: $10,000–$50,000
EDGAR ↗Ophthotech Corp.DirectorOct 19, 2009D$3,000,000
similar: $2,000,000–$19,999,994
$3,000,0005
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗LUX BIOSCIENCES INCDirectorJun 16, 2009D$9,200,000
similar: $2,000,000–$19,999,994
$9,200,00010
similar: 2–16
$21,167
similar: $10,000–$50,000
EDGAR ↗NEOVISTA INCDirectorMar 19, 2009D$18,000,000
similar: $500,000–$7,000,000
$17,159,89018
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Link Medicine CorpDirectorSep 29, 2008D$40,000,000
similar: $2,000,000–$19,999,994
$40,000,0004
similar: 2–16
$300,000
similar: $10,000–$50,000

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.

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Other / 506(b) (18,678 filings); Biotechnology / 506(b) (3,253 filings); Pharmaceuticals / 506(b) (800 filings); Other Health Care / 506(b) (4,189 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

Not linked to this profile — a second identifier (same issuer, same sponsor group) was not found. Could be the same person or a different one.

  • David Guyer — address state WA, 1 issuer, Jun 6, 2018 → Jun 6, 2018
  • David Guyer — address state TX, 1 issuer, Jul 15, 2021 → Oct 10, 2024

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

Listed alongside — 40 names on the same filings (1 management entity, 39 people)

People and management entities the issuers listed as related persons on the same Form D filings as David Guyer. Source: the EDGAR rows in the table above. Showing the 40 with the most shared filings.

  • Clarke Atwell entity — 7 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 1 other issuer
  • Thomas Dyrberg — 16 shared filings (4 issuers) · role as listed: Director · also listed on 2 other issuers
  • Paul Chaney — 13 shared filings (2 issuers) · roles as listed: Director, Executive Officer · also listed on 2 other issuers
  • Axel Bolte — 12 shared filings (2 issuers) · role as listed: Director · also listed on 4 other issuers
  • Lutz Giebel — 11 shared filings (3 issuers) · role as listed: Director · also listed on 5 other issuers
  • Eddy Anglade — 7 shared filings (1 issuer) · role as listed: Executive Officer
  • David Schnell — 7 shared filings (1 issuer) · role as listed: Director · also listed on 8 other issuers
  • Bruce Peacock — 7 shared filings (2 issuers) · roles as listed: Executive Officer, Director · also listed on 1 other issuer
  • Samir C. Patel — 6 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Evelyn Harrison — 6 shared filings (1 issuer) · role as listed: Executive Officer
  • Michael Ross — 6 shared filings (3 issuers) · roles as listed: Director, Executive Officer · also listed on 27 other issuers
  • Nicholas Galakatos — 5 shared filings (1 issuer) · role as listed: Director · also listed on 31 other issuers
  • Kevin Starr — 5 shared filings (1 issuer) · role as listed: Director
  • Dean Mitchell — 5 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • William Greene — 4 shared filings (1 issuer) · role as listed: Director · also listed on 10 other issuers
  • William Link — 4 shared filings (1 issuer) · role as listed: Director · also listed on 28 other issuers
  • John Hendrick — 4 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 2 other issuers
  • Steven Waite — 4 shared filings (1 issuer) · role as listed: Director · also listed on 5 other issuers
  • Timothy Dumke — 4 shared filings (1 issuer) · role as listed: Executive Officer
  • Ryan Schwarz — 4 shared filings (1 issuer) · role as listed: Director · also listed on 13 other issuers
  • Peter T. Lansbury — 3 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Edward Scolnick — 3 shared filings (1 issuer) · role as listed: Director
  • Stephen Martin — 3 shared filings (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Colin Goddard — 3 shared filings (1 issuer) · role as listed: Director
  • Nick Galakatos — 3 shared filings (1 issuer) · role as listed: Director · also listed on 4 other issuers
  • Ulrich M. Grau — 2 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • David Frankel — 2 shared filings (1 issuer) · role as listed: Director · also listed on 15 other issuers
  • John F. Dee — 2 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 1 other issuer
  • Alex Bolte — 2 shared filings (1 issuer) · role as listed: Director
  • Thomas Biancardi — 2 shared filings (1 issuer) · role as listed: Executive Officer
  • Henry Simon — 2 shared filings (1 issuer) · role as listed: Director
  • R. Michael Poole — 2 shared filings (1 issuer) · role as listed: Executive Officer
  • Michael Solomon — 2 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 2 other issuers
  • George Eldridge — 2 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 2 other issuers
  • Michael Tolentino — 2 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 1 other issuer
  • Derek Kunimoto — 2 shared filings (1 issuer) · role as listed: Executive Officer
  • Mohamed Genead — 2 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Nancy Thomason — 2 shared filings (1 issuer) · role as listed: Director
  • Jay Woods — 2 shared filings (1 issuer) · role as listed: Director
  • Erin Lavelle — 2 shared filings (1 issuer) · role as listed: Director

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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