PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 3:53 AM ET

Sponsor Check › Person

MG

Michael Grey

Named as an officer, director or promoter on SEC Form D filings · CA, NC, IL, UT, CO · Aug 3, 2009 → Jan 29, 2026

10deals (issuers)
$635.7Mreported sold
232investors
29Form D filings
2009–2026years on file

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:17 AM ET · SEC enforcement last checked: not yet

The short version

Michael Grey is listed as an executive officer and director on 29 SEC Form D filings by 10 issuers between Aug 2009 and Jan 2026. Largest by amount reported sold: HORIZON PHARMA, INC. (Deerfield, IL — pharmaceuticals — 2012–2013; $150M reported sold to 74 investors), Amplyx Pharmaceuticals, Inc. (San Diego, CA — pharmaceuticals — 2015–2020; $91.3M reported sold to 28 investors), SPRUCE BIOSCIENCES, INC. (South San Francisco, CA — biotechnology — 2020–2025; $88M reported sold to 21 investors), Mirum Pharmaceuticals, Inc. (Foster City, CA — biotechnology — 2018–2026; $68.5M reported sold to 14 investors), OnKure Therapeutics, Inc. (Boulder, CO — pharmaceuticals — 2018–2024; $65M reported sold to 20 investors) and 5 more (all listed below).

What this means That is a lot of deals — 10 separate companies raised money with this person listed as executive officer and director, over about 17 years. Across those companies the filings report $635.7M sold in total.

Listed alongside Ed Mathers (6 shared filings), Edward Mathers (6 shared filings), Bali Muralidhar (5 shared filings), Ciara Kennedy (5 shared filings), Tiba Aynechi (5 shared filings) and 95 others.

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Michael. Each name links to their own page.

1 of the issuers belongs to the sponsor group Onkure (2 issuers, $118.8M reported sold, 2011–2024).

What this means A sponsor group is one team that sets up a new company for each deal. Onkure has 2 companies on file and $118.8M reported sold in total — the group page shows the whole track record in one place.

Public records searched: federal courts (CourtListener / RECAP), state securities regulators (AZ, CA, DE, TX, WA) — 16 bankruptcy cases matching the name listed in Key records below. Not yet searched: SEC enforcement releases.

What this means 16 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.

What the community is saying

Nothing found on Reddit, BiggerPockets or community forums for high-net-worth investors (searched Oct 24, 2026) — search queued; this line updates when it has run.

Community comments are quoted as written by their authors. Sources searched: BiggerPockets forums (via DuckDuckGo, Brave, Bing and BiggerPockets search) and Reddit (search feed + public archive).

Key records

Five things investors ask first. Items still in human review are counted, not shown.

1. Lawsuits

None found in sources searched

What was searched

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30; recall-first rule 10-24) — federal district + bankruptcy courts; live RECAP re-check pending. State courts: not yet searched. PACER: not searched. · Last checked Oct 24, 2026, 2:17 AM 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

Not yet searched

What was searched

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.

No SEC search has run yet for this person.

3. Bankruptcies

16 cases: 16 closed (disposition not in docket feed)

Michael L Grey closed
United States Bankruptcy Court, S.D. Mississippi · No. 24-01631 · Filed Jul 16, 2024 · Closed Dec 2, 2024
Role of Michael L Grey: Debtor · Outcome: Case closed 2024-12-02 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in MS (not a filing state)
Michael N Grey closed
United States Bankruptcy Court, C.D. California · No. 6:19-bk-13837 · Filed May 3, 2019 · Closed Aug 13, 2019
Role of Michael N Grey: Debtor · Outcome: Case closed 2019-08-13 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in the person's filing state (CA)
Michael D Grey and Helen S Grey closed
United States Bankruptcy Court, W.D. Kentucky · No. 09-35488 · Filed Oct 27, 2009 · Closed Feb 3, 2010
Role of Michael D Grey and Helen S Grey: Debtor · Outcome: Case closed 2010-02-03 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in KY (not a filing state)
Michael D Grey closed
United States Bankruptcy Court, W.D. New York · No. 1-06-01006 · Filed Apr 28, 2006 · Closed Aug 7, 2006
Role of Michael D Grey: Debtor · Outcome: Case closed 2006-08-07 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in NY (not a filing state)
Michael T. Grey closed
United States Bankruptcy Court, S.D. Illinois · No. 04-34252 · Filed Oct 21, 2004 · Closed Jan 28, 2005
Role of Michael T. Grey: Debtor · Outcome: Case closed 2005-01-28 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in the person's filing state (IL)
Michael M Grey closed
United States Bankruptcy Court, C.D. California · No. 8:02-bk-13152 · Filed Apr 23, 2002 · Closed Jun 30, 2006
Role of Michael M Grey: Debtor · Outcome: Case closed 2006-06-30 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in the person's filing state (CA)
Michael L. Grey and Wendy M. Grey closed
United States Bankruptcy Court, N.D. Mississippi · No. 99-14626 · Filed Oct 19, 1999 · Closed Feb 23, 2000
Role of Michael L. Grey and Wendy M. Grey: Debtor · Outcome: Case closed 2000-02-23 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in MS (not a filing state)
Michael J. Grey closed
United States Bankruptcy Court, D. New Jersey · No. 99-35558 · Filed May 14, 1999 · Closed Sep 14, 1999
Role of Michael J. Grey: Debtor · Outcome: Case closed 1999-09-14 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in NJ (not a filing state)
Michael Grey closed
United States Bankruptcy Court, D. New Jersey · No. 98-51821 · Filed Sep 15, 1998 · Closed Dec 31, 1998
Role of Michael Grey: Debtor · Outcome: Case closed 1998-12-31 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in NJ (not a filing state)
Michael A. Grey and Carmen M. Grey closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 98-11254 · Filed Jan 30, 1998 · Closed Mar 4, 1998
Role of Michael A. Grey and Carmen M. Grey: Debtor · Outcome: Case closed 1998-03-04 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in PA (not a filing state)
Michael G. Grey closed
United States Bankruptcy Court, C.D. California · No. 8:97-bk-16607 · Filed Apr 30, 1997 · Closed Jul 24, 1997
Role of Michael G. Grey: Debtor · Outcome: Case closed 1997-07-24 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in the person's filing state (CA)
Michele A. Grey and Michael A. Grey closed
United States Bankruptcy Court, S.D. Florida. · No. 96-24738 · Filed Oct 1, 1996 · Closed May 31, 2000
Role of Michael A. Grey: Debtor · Outcome: Case closed 2000-05-31 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in FL (not a filing state)
MICHAEL GREY closed
United States Bankruptcy Court, D. Arizona · No. 0:95-bk-10723 · Filed Nov 20, 1995 · Closed Jun 26, 1998
Role of MICHAEL GREY: Debtor · Outcome: Case closed 1998-06-26 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in AR (not a filing state)
Michael Grey closed
United States Bankruptcy Court, N.D. Ohio · No. 95-12010 · Filed May 8, 1995 · Closed Aug 29, 1995
Role of Michael Grey: Debtor · Outcome: Case closed 1995-08-29 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in OH (not a filing state)
Michael J. Grey closed
United States Bankruptcy Court, E.D. Wisconsin · No. 94-20081 · Filed Jan 7, 1994 · Closed Apr 13, 1994
Role of Michael J. Grey: Debtor · Outcome: Case closed 1994-04-13 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in WI (not a filing state)
Michael W. Grey and Ann Marie Grey closed
United States Bankruptcy Court, N.D. New York · No. 93-61169 · Filed Apr 15, 1993 · Closed Oct 20, 1993
Role of Michael W. Grey and Ann Marie Grey: Debtor · Outcome: Case closed 1993-10-20 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 31 federal dockets); 3 people with this name in Form D filings; court in NY (not a filing state)
What was 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 24, 2026, 2:17 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

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

Not made for individual people — comparisons cover issuers and sponsor groups

5. Money to insiders

6 of 23 offerings report sales commissions totalling $20,811,803; 1 reports finder's fees totalling $598,594; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Jan 29, 2026 D
Mirum Pharmaceuticals, Inc.
File 021-571698
$0$0$0None listed on this filingEDGAR ↗
Oct 17, 2025 D
SPRUCE BIOSCIENCES, INC.
File 021-561207
$3,000,000$0$0
The Company shall use the net proceeds of the sale of the Securities hereunder for non-clinical and clinical development activities for its product candidate, pre-commercial activities and general corporate purposes.
Leerink Partners LLC BrokerCheck CRD 39011 ↗
Citizens JMP Securities, LLC BrokerCheck CRD 22208 ↗
H.C. Wainwright & Co., LLC BrokerCheck CRD 375 ↗
EDGAR ↗
Aug 25, 2025 D
Plexium, Inc.
File 021-555722
$0$0$0None listed on this filingEDGAR ↗
Oct 21, 2024 D
OnKure Therapeutics, Inc.
File 021-527340
$3,250,000$0$0Evercore Group, L.L.C BrokerCheck CRD 42405 ↗
Leerlink Partners LLC BrokerCheck CRD 39011 ↗
LifeSci Capital, LLC BrokerCheck CRD 168404 ↗
EDGAR ↗
Feb 28, 2023 D
SPRUCE BIOSCIENCES, INC.
File 021-474453
$2,437,603$0$0 (est.)
The Company shall use the net proceeds of the sale of the securities for non-clinical and clinical development activities for its product candidate, pre-commercial activities and general corporate purposes.
SVB Securities LLC BrokerCheck CRD 39011 ↗EDGAR ↗
Jan 11, 2022 D
Sorriso Pharmaceuticals, Inc.
File 021-428887
$0$0$0None listed on this filingEDGAR ↗
Dec 30, 2020 D
Mirum Pharmaceuticals, Inc.
File 021-384864
$0$0$0None listed on this filingEDGAR ↗
Dec 21, 2020 D
OnKure Therapeutics, Inc.
File 021-383843
$0$0$0None listed on this filingEDGAR ↗
Aug 14, 2020 D/A
SPRUCE BIOSCIENCES, INC.
File 021-361655
$0$0$0 (est.)None listed on this filingEDGAR ↗
Jan 9, 2020 D/A
Amplyx Pharmaceuticals, Inc.
File 021-291889
$0$0$0None listed on this filingEDGAR ↗
May 14, 2019 D
OnKure Therapeutics, Inc.
File 021-339502
$0$0$0None listed on this filingEDGAR ↗
Nov 20, 2018 D
Mirum Pharmaceuticals, Inc.
File 021-326260
$0$0$0None listed on this filingEDGAR ↗
Jan 8, 2018 D
OnKure Therapeutics, Inc.
File 021-302643
$0$0$0None listed on this filingEDGAR ↗
Dec 24, 2015 D/A
Amplyx Pharmaceuticals, Inc.
File 021-251044
$0$0$0None listed on this filingEDGAR ↗
May 19, 2015 D
Balance Therapeutics, Inc.
File 021-240194
$0$0$0None listed on this filingEDGAR ↗
May 5, 2015 D
Balance Therapeutics, Inc.
File 021-239210
$0$0$0None listed on this filingEDGAR ↗
Mar 19, 2015 D
Balance Therapeutics, Inc.
File 021-236214
$0$598,594$0LWPartners Capital Group LLC BrokerCheck CRD 167438 ↗EDGAR ↗
Mar 19, 2014 D
Lumena Pharmaceuticals, Inc.
File 021-213918
$0$0$0None listed on this filingEDGAR ↗
Dec 9, 2013 D
HORIZON PHARMA, INC.
File 021-207631
$6,000,000$0$0JMP Securities LLC BrokerCheck CRD 22208 ↗
via JMP Securities LLC (CRD 22208 ↗)

Cowen and Company, LLC BrokerCheck CRD 7616 ↗
via Cowen and Company, LLC (CRD 7616 ↗)
EDGAR ↗
May 24, 2012 D/A
Lumena Pharmaceuticals, Inc.
File 021-155528
$0$0$0None listed on this filingEDGAR ↗
Mar 19, 2012 D
HORIZON PHARMA, INC.
File 021-175137
$3,124,200$0$0JMP Securities, LLC BrokerCheck CRD 22208 ↗
via JMP Securities, LLC (CRD 22208 ↗)

Cowen & Company LLC BrokerCheck CRD 7616 ↗
via Cowen & Company LLC (CRD 7616 ↗)

Stifel, Nicolaus & Company Incorporated BrokerCheck CRD 793 ↗
via Stifel, Nicolaus & Company Incorporated (CRD 793 ↗)
EDGAR ↗
Mar 8, 2012 D
HORIZON PHARMA, INC.
File 021-174559
$3,000,000$0$0JMP Securities, LLC BrokerCheck CRD 22208 ↗
via JMP Securities, LLC (CRD 22208 ↗)

Cowen & Company LLC BrokerCheck CRD 7616 ↗
via Cowen & Company LLC (CRD 7616 ↗)

Stifel, Nicolaus & Company Incorporated BrokerCheck CRD 793 ↗
via Stifel, Nicolaus & Company Incorporated (CRD 793 ↗)
EDGAR ↗
Aug 3, 2009 D
Auspex Pharmaceuticals, Inc.
File 021-126470
$0$0$0None listed on this filingEDGAR ↗
How this is counted

Counts come from Form D Items 12–15 on the filings in our index (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).

Deals 10

Every issuer that named Michael Grey on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

Biotechnology

Mirum Pharmaceuticals, Inc.

Foster City, CA · Nov 20, 2018 → Jan 29, 2026 · 3 filings
  • Jan 29, 2026 · D · $68,480,000 sold of $68,480,000 · 2 investors · min. No minimum reported · role: Director EDGAR ↗
  • Dec 30, 2020 · D · $10,000,000 sold of $10,000,000 · 3 investors · min. No minimum reported · role: Director EDGAR ↗
  • Nov 20, 2018 · D · $60,063,750 sold of $120,063,750 · 14 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $68.5M from 14 investors (100% of the $68.5M target) as of the latest filing. Michael is listed as director, executive officer on 3 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Biotechnology / 506(c) (163 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.

Biotechnology

SPRUCE BIOSCIENCES, INC.

South San Francisco, CA · Feb 28, 2020 → Oct 17, 2025 · 4 filings
  • Oct 17, 2025 · D · $49,999,768 sold of $49,999,768 · 21 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Feb 28, 2023 · D · $53,615,720 sold of $53,615,720 · 20 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Aug 14, 2020 · D/A · $88,000,000 sold of $88,000,000 · 11 investors · min. No minimum reported · role: Director EDGAR ↗
  • Feb 28, 2020 · D · $44,000,000 sold of $88,000,000 · 11 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $88M from 21 investors (100% of the $50M target) as of the latest filing. Michael is listed as executive officer, director on 4 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: 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.

Biotechnology

Plexium, Inc.

San Diego, CA · Aug 25, 2025
  • Aug 25, 2025 · D · $60,115,703 sold of $60,115,703 · 20 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $60.1M from 20 investors (100% of the $60.1M target) as of the latest filing. Michael is listed as director.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: 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.

Pharmaceuticals · group: Onkure

OnKure Therapeutics, Inc.

Boulder, CO · Jan 8, 2018 → Oct 21, 2024 · 4 filings
  • Oct 21, 2024 · D · $65,000,000 sold of $65,000,000 · 20 investors · min. No minimum reported · role: Director EDGAR ↗
  • Dec 21, 2020 · D · $47,384,999 sold of $94,769,998 · 15 investors · min. No minimum reported · role: Director EDGAR ↗
  • May 14, 2019 · D · $25,000,002 sold of $25,000,002 · 9 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jan 8, 2018 · D · $21,994,682 sold of $51,994,684 · 16 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $65M from 20 investors (100% of the $65M target) as of the latest filing. Michael is listed as director, executive officer on 4 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 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.

Biotechnology

Sorriso Pharmaceuticals, Inc.

Sandy, UT · Jan 11, 2022
  • Jan 11, 2022 · D · $21,293,856 sold of $31,390,009 · 11 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $21.3M from 11 investors (68% of the $31.4M target) as of the latest filing. Michael is listed as director.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: 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.

Pharmaceuticals

Amplyx Pharmaceuticals, Inc.

San Diego, CA · Nov 12, 2015 → Jan 9, 2020 · 4 filings
  • Jan 9, 2020 · D/A · $91,326,103 sold of $102,736,838 · 28 investors · min. No minimum reported · role: Director EDGAR ↗
  • Aug 1, 2017 · D · $40,042,102 sold of $66,736,837 · 26 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Dec 24, 2015 · D/A · $23,727,051 sold of $49,187,346 · 25 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Nov 12, 2015 · D · $20,000,000 sold of $47,000,000 · 24 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $91.3M from 28 investors (89% of the $102.7M target) as of the latest filing. Michael is listed as director, executive officer on 4 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 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.

Biotechnology

Balance Therapeutics, Inc.

San Bruno, CA · Mar 19, 2015 → May 19, 2015 · 3 filings
  • May 19, 2015 · D · $183,106 sold of $183,106 · 1 investors · min. No minimum reported · role: Director EDGAR ↗
  • May 5, 2015 · D · $3,000,000 sold of $3,000,000 · 1 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 19, 2015 · D · $17,982,388 sold of $17,982,388 · 22 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $18M from 22 investors (100% of the $183K target) as of the latest filing. Michael is listed as director on 3 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: 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.

Pharmaceuticals

Lumena Pharmaceuticals, Inc.

San Diego, CA · Feb 17, 2011 → Mar 19, 2014 · 5 filings
  • Mar 19, 2014 · D · $45,499,993 sold of $45,499,993 · 13 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • May 24, 2012 · D/A · $2,550,150 sold of $2,550,150 · 6 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Feb 8, 2012 · D/A · $2,550,000 sold of $2,550,000 · 6 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Jun 16, 2011 · D/A · $500,000 sold of $2,000,000 · 4 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Feb 17, 2011 · D · $250,000 sold of $500,000 · 2 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $45.5M from 13 investors (100% of the $45.5M target) as of the latest filing. Michael is listed as executive officer, director on 5 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 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.

Pharmaceuticals

HORIZON PHARMA, INC.

Deerfield, IL · Mar 8, 2012 → Dec 9, 2013 · 3 filings
  • Dec 9, 2013 · D · $150,000,000 sold of $150,000,000 · 74 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 19, 2012 · D · $65,934,397 sold of $65,934,397 · 32 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 8, 2012 · D · $32,772 sold of $32,772 · 6 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $150M from 74 investors (100% of the $150M target) as of the latest filing. Michael is listed as director on 3 filings for this deal.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 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.

Pharmaceuticals

Auspex Pharmaceuticals, Inc.

La Jolla, CA · Aug 3, 2009
  • Aug 3, 2009 · D · $3,000,000 sold of $3,000,000 · 7 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $28M from 9 investors (100% of the $3M target) as of the latest filing. Michael is listed as executive officer, director.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer.

Other pages with the same name (2)

Separate person records under the same name, not combined with this page. Each line says whether it shares an issuer with this record.

  • Michael Grey — CT, 1 issuer, Aug 23, 2010 → Aug 23, 2010 · no shared issuer
  • Michael Grey — MA, 1 issuer, Nov 29, 2011 → Nov 29, 2011 · no shared issuer

People around Michael 40

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET. Showing the 40 with the most shared filings.

Person

Edward Mathers

Director · 6 shared filings (5 issuers) · also on 2 other issuers

Edward Mathers is on 7 issuers in total — a repeat sponsor. Their page lists every one.

Person

Ed Mathers

Director · 6 shared filings (3 issuers) · also on 10 other issuers

Ed Mathers is on 13 issuers in total — a repeat sponsor. Their page lists every one.

Person

Tiba Aynechi

Director · 5 shared filings (2 issuers) · also on 9 other issuers

Tiba Aynechi is on 11 issuers in total — a repeat sponsor. Their page lists every one.

Person

Bali Muralidhar

Director · 5 shared filings (2 issuers) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Ciara Kennedy

Executive Officer, Director · 5 shared filings (2 issuers) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Timothy P. Walbert

Executive Officer, Director · 4 shared filings (2 issuers) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Ford S. Worthy

Executive Officer · 4 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Elaine Heron

Director · 4 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Niall ODonnell

Director · 4 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Niall O'Donnell

Executive Officer, Director · 4 shared filings (3 issuers) · also on 9 other issuers

Niall O'Donnell is on 12 issuers in total — a repeat sponsor. Their page lists every one.

Person

Richard Chin

Director · 3 shared filings (1 issuer) · also on 4 other issuers

Richard Chin is on 5 issuers in total — a repeat sponsor. Their page lists every one.

Person

Peter Carlton

Director · 3 shared filings (1 issuer) · also on 16 other issuers

Peter Carlton is on 17 issuers in total — a repeat sponsor. Their page lists every one.

Person

Samir Gharib

Executive Officer · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Jeff Himawan

Director · 3 shared filings (1 issuer) · also on 5 other issuers

Jeff Himawan is on 6 issuers in total — a repeat sponsor. Their page lists every one.

Person

Jeffrey W. Bird

Director · 3 shared filings (1 issuer) · also on 10 other issuers

Jeffrey W. Bird is on 11 issuers in total — a repeat sponsor. Their page lists every one.

Person

Ronald Pauli

Director · 3 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Wendy Johnson

Executive Officer · 3 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Robert De Vaere

Executive Officer · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Phyllis E. Whiteley

Director · 3 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Jean-Francois Formela

Director · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Rosina Maar Pavia

Director · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Gino Santini

Director · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Susan Dube

Executive Officer · 3 shared filings (3 issuers) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

John P. McKearn

Director · 3 shared filings (1 issuer) · also on 16 other issuers

John P. McKearn is on 17 issuers in total — a repeat sponsor. Their page lists every one.

Person

Lyndon Lien

Executive Officer, Director · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

DINA CHAYA

Director · 3 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Patrick Heron

Director · 3 shared filings (1 issuer) · also on 33 other issuers

Patrick Heron is on 34 issuers in total — a repeat sponsor. Their page lists every one.

Person

Kirk Ways

Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Javier Szwarcberg

Executive Officer, Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Simpson Camilla

Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Louis C. Bock

Director · 2 shared filings (1 issuer) · also on 8 other issuers

Louis C. Bock is on 9 issuers in total — a repeat sponsor. Their page lists every one.

Person

Anand Mehra

Director · 2 shared filings (1 issuer) · also on 7 other issuers

Anand Mehra is on 8 issuers in total — a repeat sponsor. Their page lists every one.

Person

Paul Grint

Director · 2 shared filings (1 issuer) · also on 4 other issuers

Paul Grint is on 5 issuers in total — a repeat sponsor. Their page lists every one.

Person

Richard King

Executive Officer, Director · 2 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

DANIEL K. SPIEGELMAN

Director · 2 shared filings (1 issuer) · also on 4 other issuers

DANIEL K. SPIEGELMAN is on 5 issuers in total — a repeat sponsor. Their page lists every one.

Person

Ted Greene

Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Edward E. Greene

Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

JONAS HANSSON

Director · 2 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Michael Grey. Their page shows their other deals.

Person

Mitchell Mutz

Executive Officer · 2 shared filings (1 issuer) · also on 5 other issuers

Mitchell Mutz is on 6 issuers in total — a repeat sponsor. Their page lists every one.

Person

Niall O'Donnell, Ph.D.

Executive Officer, Director · 2 shared filings (1 issuer)

Listed on the same filings as Michael Grey. Their page shows their other deals.

The team behind the deals

Sponsor group

Onkure

2 issuers · 18 filings · $118.8M reported sold · 2011–2024

One team, 2 deal companies. Michael Grey is listed on 1 of them.

Sources

Issuers are grouped when their Form D filings share related persons, a management entity or a business address (automatic match from the filings). "Listed" marks the issuers that name Michael Grey.

Same business address

35 other issuers file from the same address

A shared address can mean the same team, a shared office building or a registered agent. It is a lead, not a conclusion.

Registrations and other filings

Adviser registration (Form ADV)

Not yet searched. Sources to be searched: SEC Investment Adviser Information Reports — Form ADV data for SEC-registered advisers and exempt reporting advisers (file dated 2026-10-02); SEC Investment Adviser Public Disclosure (IAPD) firm search — registered and exempt reporting advisers · Search queued. Results are added automatically; check back later.

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.

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (San Diego, CA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Change history

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