Sponsor Check › Person
Related person on Form D filings · address state as listed: MA · listed Oct 12, 2010 → Mar 11, 2026
Data last updated: Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: not yet · SEC enforcement last checked: not yet
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Sources to be searched: CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Search queued. Results are added automatically; check back later or follow this page to be notified.
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.
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.
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Search queued. Results are added automatically; check back later or follow this page to be notified.
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Sources to be searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Search queued. Results are added automatically; check back later or follow this page to be notified.
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.
Comparisons are made for sponsors and sponsor groups, not individual people.
0 of 22 offerings report sales commissions; 0 report finder's fees; 2 report proceeds to related persons totalling $1,331,421. (includes amounts the issuer reported as estimates)
| Source | Offering (latest filing) | Sales commissions | Finder's fees | To insiders | Paid to sell it |
|---|---|---|---|---|---|
| EDGAR ↗ | Sep 25, 2026 D File 021-598863 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Mar 11, 2026 D File 021-576080 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jan 12, 2026 D File 021-569582 | $0 | $0 | $931,421 (est.) | None listed on this filing |
| EDGAR ↗ | Oct 7, 2025 D File 021-560062 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Oct 22, 2024 D File 021-527442 | $0 | $0 | $400,000 (est.) | None listed on this filing |
| EDGAR ↗ | May 5, 2022 D File 021-444596 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Mar 15, 2022 D File 021-437356 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Nov 10, 2021 D File 021-420716 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Apr 8, 2021 D File 021-395106 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jul 11, 2019 D File 021-344019 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jun 28, 2019 D File 021-343102 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Apr 25, 2019 D File 021-338084 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Feb 1, 2018 D/A File 021-291239 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Aug 2, 2017 D/A File 021-287829 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jun 14, 2017 D File 021-288694 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Oct 17, 2016 D File 021-272672 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Mar 31, 2016 D File 021-260426 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Aug 21, 2015 D File 021-246232 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Dec 17, 2013 D File 021-208092 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Mar 6, 2012 D File 021-174382 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Aug 19, 2011 D File 021-164739 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Oct 12, 2010 D File 021-148869 | $0 | $0 | $0 | 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).
| Source | Issuer | Role | Filed | Form | Offering | Sold | Investors | Min. investment |
|---|---|---|---|---|---|---|---|---|
| EDGAR ↗ | Way Biosolutions, Inc. group: Arbor | Director | Sep 25, 2026 | D | $2,000,000 similar: $2,000,000–$19,999,994 | $2,000,000 | 2 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Everest Biolabs, Inc. | Director | Mar 11, 2026 | D | $5,650,000 similar: $2,000,000–$19,999,994 | $4,350,000 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Vizgen, Inc. | Director | Jan 12, 2026 | D | $50,000,000 similar: $2,000,000–$19,999,994 | $47,788,714 | 9 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Vizgen, Inc. | Director | Oct 7, 2025 | D | $9,500,000 similar: $2,000,000–$19,999,994 | $3,500,000 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Vizgen, Inc. | Director | Oct 22, 2024 | D | Indefinite similar: $2,000,000–$19,999,994 | $107,575,628 | 61 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Vizgen, Inc. | Director | May 5, 2022 | D | $105,199,991 similar: $2,000,000–$19,999,994 | $85,199,997 | 15 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Sherlock Biosciences, Inc. | Director | Mar 15, 2022 | D | $80,000,013 similar: $829,831–$9,999,998 | $80,000,013 | 13 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | Arbor Biotechnologies, Inc. group: Arbor | Director | Nov 10, 2021 | D | $214,999,926 similar: $2,000,000–$19,999,994 | $214,999,926 | 37 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Vizgen, Inc. | Director | Apr 8, 2021 | D | $36,999,998 similar: $2,000,000–$19,999,994 | $36,999,998 | 12 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Quanterix Corp | Director | Jul 11, 2019 | D | $6,500,000 similar: $1,100,015–$10,001,163 | $6,175,000 | 3 similar: 2–14 | No minimum reported similar: $5,000–$50,000 |
| EDGAR ↗ | Ultivue, Inc. | Director | Jun 28, 2019 | D | $26,502,993 similar: $2,000,000–$19,999,994 | $26,502,993 | 14 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Sherlock Biosciences, Inc. | Director | Apr 25, 2019 | D | $33,759,240 similar: $829,831–$9,999,998 | $32,759,240 | 10 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | Ultivue, Inc. | Director | Feb 1, 2018 | D/A | $20,499,996 similar: $2,000,000–$19,999,994 | $20,249,996 | 11 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Arbor Biotechnologies, Inc. group: Arbor | Director | Aug 2, 2017 | D/A | $15,599,998 similar: $2,000,000–$19,999,994 | $15,599,998 | 10 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Ultivue, Inc. | Director | Jul 21, 2017 | D | $13,999,997 similar: $2,000,000–$19,999,994 | $10,101,968 | 6 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Quanterix Corp | Director | Jun 14, 2017 | D | $8,499,999 similar: $500,000–$7,000,000 | $8,499,999 | 5 similar: 2–14 | No minimum reported similar: $5,000–$50,000 |
| EDGAR ↗ | Arbor Biotechnologies, Inc. group: Arbor | Director | Jun 1, 2017 | D | $15,599,998 similar: $2,000,000–$19,999,994 | $12,224,999 | 3 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Dare Bioscience, Inc. | Director | Oct 17, 2016 | D | $1 similar: $1,694,259–$16,000,000 | $1 | 1 similar: 1–13 | No minimum reported similar: $10,000–$55,000 |
| EDGAR ↗ | Quanterix Corp | Director | Mar 31, 2016 | D | $45,582,362 similar: $500,000–$7,000,000 | $45,582,361 | 15 similar: 2–14 | No minimum reported similar: $5,000–$50,000 |
| EDGAR ↗ | Ultivue, Inc. | Executive Officer, Director | Aug 21, 2015 | D | $5,150,000 similar: $2,000,000–$19,999,994 | $5,150,000 | 6 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Quanterix Corp | Director | Dec 17, 2013 | D | $999,999 similar: $500,000–$7,000,000 | $999,999 | 1 similar: 2–14 | No minimum reported similar: $5,000–$50,000 |
| EDGAR ↗ | Quanterix Corp | Director | Mar 6, 2012 | D | Indefinite similar: $829,831–$9,999,998 | $1,999,999 | 9 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | Quanterix Corp | Director | Aug 19, 2011 | D | Indefinite similar: $829,831–$9,999,998 | $5,999,998 | 9 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | Quanterix Corp | Director | Oct 12, 2010 | D | $5,000,000 similar: $829,831–$9,999,998 | $2,500,000 | 9 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
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 (5 industry/exemption sets on this page); 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.
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.
People and management entities the issuers listed as related persons on the same Form D filings as David Walt. Source: the EDGAR rows in the table above. Showing the 40 with the most shared filings.
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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