Sponsor Check › Person
Related person on Form D filings · address states as listed: MA, NH · listed Sep 29, 2008 → Dec 23, 2025
Data last updated: Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 23, 2026, 11:55 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.
The five facts investors ask about first. Each section states what was searched and when. Items still in human review are not shown.
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, 11:55 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.
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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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, 11:55 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.
Comparisons are made for sponsors and sponsor groups, not individual people.
5 of 20 offerings report sales commissions totalling $1,255,000; 0 report finder's fees; 9 report proceeds to related persons totalling $5,653,665. (includes amounts the issuer reported as estimates)
| Source | Offering (latest filing) | Sales commissions | Finder's fees | To insiders | Paid to sell it |
|---|---|---|---|---|---|
| EDGAR ↗ | Dec 23, 2025 D/A File 021-529572 | $0 | $0 | $1,111,665 (est.) Includes $755,367 of compensation for executives in Item 3 for 2024-2026 (est.) and $356,298 for CFO/accounting services for an affiliate for 2024-2026 (est.) | None listed on this filing |
| EDGAR ↗ | Oct 16, 2025 D File 021-561030 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Oct 10, 2024 D File 021-526459 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Dec 20, 2023 D/A File 021-358309 | $80,000 (est.) | $0 | $2,383,000 (est.) Includes $1,505,000 of compensation for executives in Item 3 for 2020-2024 (est.) and $878,000 for CFO/accounting services for an affiliate for 2020-2024 (est.). | Butler Capital Partners BrokerCheck CRD 114242 ↗ |
| EDGAR ↗ | Aug 25, 2023 D File 021-490659 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jun 12, 2023 D/A File 021-448088 | $0 | $0 | $300,000 (est.) | None listed on this filing |
| EDGAR ↗ | Feb 13, 2023 D/A File 021-383553 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jun 3, 2022 D File 021-448080 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Mar 19, 2019 D/A File 021-308187 | $25,000 (est.) | $0 | $452,000 (est.) The Issuer will use a portion of the proceeds of the offering to pay compensation, which is expected to be approximately $452,000 for 2 years in the aggregate for the three executive officers named in Item 3 above, and may continue after the second year. | Bernhard Hoffmann BrokerCheck CRD 1391658 ↗ via Growth Capital Services (CRD 124658 ↗) |
| EDGAR ↗ | Feb 13, 2019 D File 021-332794 | $0 | $0 | $25,000 (est.) Repayment of Note | None listed on this filing |
| EDGAR ↗ | Dec 8, 2017 D File 021-300326 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Nov 9, 2017 D/A File 021-292815 | $75,000 (est.) | $0 | $216,000 (est.) The Issuer anticipates that it will use a portion of the proceeds of the offering to pay compensation, which is currently expected to be approximately $216,000 per year in the aggregate for the three executive officers named in Item 3 above. | Bernhard Hoffmann BrokerCheck CRD 1391658 ↗ via Growth Capital Services (CRD 124658 ↗) Gligor Tashkovich BrokerCheck CRD 5725183 ↗ via AlphaSource Capital Securities, LLC (CRD 145875 ↗) |
| EDGAR ↗ | Mar 20, 2017 D/A File 021-186725 | $325,000 (est.) | $0 | $216,000 (est.) The issuer anticipates that it will use a portion of the proceeds of the offering to pay compensation, which is currently expected to be approximately $216,000 per year in the aggregate for the three executive officers named in Item 3 above. | Bernhard Hoffmann BrokerCheck CRD 1391658 ↗ via Growth Capital Services (CRD 124658 ↗) Gligor Tashkovich BrokerCheck CRD 5725183 ↗ via AlphaSource Capital Securities, LLC (CRD 145875 ↗) |
| EDGAR ↗ | Mar 2, 2017 D File 021-281666 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jun 24, 2015 D File 021-242364 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | Jul 17, 2012 D/A File 021-181341 | $0 | $0 | $0 | None listed on this filing |
| EDGAR ↗ | May 5, 2011 D/A File 021-156707 | $0 | $0 | $0 (est.) | None listed on this filing |
| EDGAR ↗ | Dec 18, 2009 D File 021-135875 | $0 | $0 | $0 (est.) | None listed on this filing |
| EDGAR ↗ | Aug 11, 2009 D File 021-120677 | $0 | $0 | $500,000 (est.) Payments to be made to an executive officer, director or promoter shall be made in connection with such person's employment for the Company. | None 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).
| Source | Issuer | Role | Filed | Form | Offering | Sold | Investors | Min. investment |
|---|---|---|---|---|---|---|---|---|
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Dec 23, 2025 | D/A | $20,000,000 similar: $2,000,000–$19,999,994 | $6,467,100 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Nov 17, 2025 | D/A | $12,000,000 similar: $2,000,000–$19,999,994 | $6,467,100 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Oct 16, 2025 | D | $1,791,165 similar: $2,000,000–$19,999,994 | $1,791,165 | 9 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Nov 15, 2024 | D | $12,000,000 similar: $2,000,000–$19,999,994 | $978,000 | 5 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Oct 10, 2024 | D | $29,354,820 similar: $2,000,000–$19,999,994 | $29,354,820 | 13 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Dec 20, 2023 | D/A | $30,000,000 similar: $2,000,000–$19,999,994 | $23,249,350 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Aug 25, 2023 | D | $1,250,000 similar: $2,000,000–$19,999,994 | $250,000 | 2 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Jun 12, 2023 | D/A | $3,500,000 similar: $2,000,000–$19,999,994 | $3,065,000 | 21 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Mar 1, 2023 | D/A | $3,500,000 similar: $2,000,000–$19,999,994 | $2,915,000 | 19 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Avilar Therapeutics, Inc. | Executive Officer | Feb 13, 2023 | D/A | $75,276,164 similar: $1,694,259–$16,000,000 | $75,276,164 | 5 similar: 1–13 | No minimum reported similar: $10,000–$55,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Dec 14, 2022 | D/A | $30,000,000 similar: $2,000,000–$19,999,994 | $18,444,727 | 6 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Jun 3, 2022 | D | $1,900,000 similar: $2,000,000–$19,999,994 | $1,900,000 | 13 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SightStream Biotherapeutics, Inc. | Executive Officer | Jun 3, 2022 | D | Indefinite similar: $2,000,000–$19,999,994 | $0 | 18 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Dec 30, 2021 | D/A | $25,000,000 similar: $2,000,000–$19,999,994 | $14,672,214 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Jan 15, 2021 | D/A | $15,000,000 similar: $2,000,000–$19,999,994 | $9,197,000 | 7 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Avilar Therapeutics, Inc. | Executive Officer | Dec 17, 2020 | D | $60,000,000 similar: $1,694,259–$16,000,000 | $20,276,164 | 3 similar: 1–13 | No minimum reported similar: $10,000–$55,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Jan 17, 2020 | D | $12,000,000 similar: $2,000,000–$19,999,994 | $6,100,000 | 6 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Mar 19, 2019 | D/A | $5,000,000 similar: $2,000,000–$19,999,994 | $850,000 | 4 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Nayan Therapeutics, Inc. | Executive Officer | Feb 13, 2019 | D | $25,000,000 similar: $2,000,000–$19,999,994 | $3,000,000 | 3 similar: 2–16 | $381,500 similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Mar 21, 2018 | D | $5,000,000 similar: $2,000,000–$19,999,994 | $500,000 | 1 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Obsidian Therapeutics, Inc. | Executive Officer | Dec 8, 2017 | D | $49,936,323 similar: $2,000,000–$19,999,994 | $32,436,323 | 8 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Nov 9, 2017 | D/A | $2,500,000 similar: $2,000,000–$19,999,994 | $1,500,000 | 1 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Aug 15, 2017 | D | $2,000,000 similar: $2,000,000–$19,999,994 | $500,000 | 1 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer | Mar 20, 2017 | D/A | $18,000,000 similar: $2,000,000–$19,999,994 | $16,285,471 | 40 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Arrakis Therapeutics, Inc. | Executive Officer | Mar 2, 2017 | D | $41,238,467 similar: $2,000,000–$19,999,994 | $13,238,466 | 8 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | SYNDEVRX INC | Executive Officer Mr. Neafus became Chief Financial Officer in December 2015. | Jul 13, 2016 | D/A | $15,000,000 similar: $2,000,000–$19,999,994 | $13,410,221 | 38 similar: 2–16 | No minimum reported similar: $10,000–$50,000 |
| EDGAR ↗ | Microchips Biotech, Inc. | Executive Officer | Jun 24, 2015 | D | $18,648,546 similar: $829,831–$9,999,998 | $18,648,546 | 9 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | PanGenX, Inc. | Executive Officer | Jul 17, 2012 | D | $10,133,398 similar: $829,831–$9,999,998 | $933,640 | 6 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | PanGenX, Inc. | Executive Officer | Jul 17, 2012 | D/A | $10,133,398 similar: $829,831–$9,999,998 | $933,640 | 6 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | SUSTAINX INC | Executive Officer | May 5, 2011 | D/A | $20,000,000 similar: $1,000,000–$16,613,798 | $20,000,000 | 9 similar: 2–13 | No minimum reported similar: $10,000–$100,000 |
| EDGAR ↗ | SUSTAINX INC | Executive Officer | Mar 15, 2011 | D | $17,000,000 similar: $1,000,000–$16,613,798 | $14,399,999 | 7 similar: 2–13 | No minimum reported similar: $10,000–$100,000 |
| EDGAR ↗ | Afferent Pharmaceuticals, Inc. | Executive Officer Chief Financial Officer & Treasurer | Dec 18, 2009 | D | $23,000,000 similar: $829,831–$9,999,998 | $3,000,000 | 6 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | Afferent Pharmaceuticals, Inc. | Executive Officer Chief Financial Officer & Treasurer | Nov 5, 2009 | D | $150,000 similar: $829,831–$9,999,998 | $150,000 | 6 similar: 2–15 | No minimum reported similar: $10,000–$54,310 |
| EDGAR ↗ | SUSTAINX INC | Executive Officer | Aug 11, 2009 | D | $3,999,998 similar: $1,000,000–$16,613,798 | $3,999,998 | 5 similar: 2–13 | No minimum reported similar: $10,000–$100,000 |
| EDGAR ↗ | Link Medicine Corp | Executive Officer | Sep 29, 2008 | D | $40,000,000 similar: $2,000,000–$19,999,994 | $40,000,000 | 4 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: Biotechnology / 506(b) (3,253 filings); Pharmaceuticals / 506(b) (800 filings); Other Health Care / 506(b) (4,189 filings); Other Energy / 506(b) (1,000 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.
People and management entities the issuers listed as related persons on the same Form D filings as David Neafus. 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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