PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 12:40 AM ET

Sponsor Check › Person

John McMahon

Related person on Form D filings · address states as listed: CA, MT · listed Jun 1, 2015 → Jan 30, 2025

7issuers
29Form D filings
2015–2025years listed

Data last updated: Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 12:01 AM 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 24, 2026, 12:01 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

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.

Search queued. Results are added automatically; check back later or follow this page to be notified.

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 24, 2026, 12:01 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.

4. Differences between public sources

Comparisons are made for sponsors and sponsor groups, not individual people.

5. Money to insiders and sales commissions

0 of 24 offerings report sales commissions; 0 report finder's fees; 0 report proceeds to related persons.

SourceOffering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell it
EDGAR ↗Jun 6, 2025 D
File 021-548249
$0$0$0None listed on this filing
EDGAR ↗Jan 30, 2025 D/A
File 021-515205
$0$0$0None listed on this filing
EDGAR ↗Oct 15, 2024 D/A
File 021-511272
$0$0$0None listed on this filing
EDGAR ↗May 15, 2023 D/A
File 021-426220
$0$0$0None listed on this filing
EDGAR ↗Apr 20, 2022 D
File 021-442751
$0$0$0None listed on this filing
EDGAR ↗Nov 18, 2021 D
File 021-421704
$0$0$0None listed on this filing
EDGAR ↗Sep 23, 2021 D
File 021-414430
$0$0$0None listed on this filing
EDGAR ↗Apr 16, 2021 D
File 021-396194
$0$0$0None listed on this filing
EDGAR ↗Jan 11, 2021 D
File 021-385889
$0$0$0None listed on this filing
EDGAR ↗May 6, 2020 D/A
File 021-304098
$0$0$0None listed on this filing
EDGAR ↗May 6, 2020 D/A
File 021-323601
$0$0$0None listed on this filing
EDGAR ↗Feb 26, 2020 D
File 021-361359
$0$0$0None listed on this filing
EDGAR ↗Nov 18, 2019 D
File 021-353664
$0$0$0None listed on this filing
EDGAR ↗Sep 13, 2019 D
File 021-348851
$0$0$0None listed on this filing
EDGAR ↗Jun 15, 2017 D
File 021-288828
$0$0$0None listed on this filing
EDGAR ↗Jun 15, 2017 D
File 021-288838
$0$0$0None listed on this filing
EDGAR ↗Jun 15, 2017 D
File 021-288844
$0$0$0None listed on this filing
EDGAR ↗Apr 11, 2017 D
File 021-284500
$0$0$0None listed on this filing
EDGAR ↗Apr 11, 2017 D
File 021-284502
$0$0$0None listed on this filing
EDGAR ↗Apr 11, 2017 D
File 021-284503
$0$0$0None listed on this filing
EDGAR ↗Apr 11, 2017 D
File 021-284505
$0$0$0None listed on this filing
EDGAR ↗Apr 11, 2017 D
File 021-284511
$0$0$0None listed on this filing
EDGAR ↗Jul 2, 2015 D
File 021-242984
$0$0$0None listed on this filing
EDGAR ↗Jun 1, 2015 D
File 021-240878
$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 ↗Observe, Inc.DirectorJun 6, 2025D$190,530,438
similar: $1,100,015–$10,001,163
$124,780,45352
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorJan 30, 2025D/A$273,999,679
similar: $500,000–$7,000,000
$263,999,68236
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Observe, Inc.DirectorOct 15, 2024D/A$152,499,979
similar: $1,100,015–$10,001,163
$144,999,98657
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorJun 5, 2024D$254,999,925
similar: $500,000–$7,000,000
$253,999,68535
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Observe, Inc.DirectorApr 23, 2024D$124,999,987
similar: $1,100,015–$10,001,163
$124,999,98754
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorMay 15, 2023D/A$339,999,918
similar: $500,000–$7,000,000
$339,999,91863
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 20, 2022D$621,456,438
similar: $1,100,015–$10,001,163
$621,456,43839
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorDec 22, 2021D$299,999,976
similar: $500,000–$7,000,000
$299,999,97650
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Lacework, Inc.DirectorNov 18, 2021D$1,359,578,418
similar: $480,782–$5,000,000
$1,203,878,15371
similar: 1–9
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorSep 23, 2021D$15,000,000
similar: $500,000–$7,000,000
$15,000,00023
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorApr 16, 2021D$21,000,000
similar: $500,000–$7,000,000
$8,300,00023
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Lacework, Inc.DirectorJan 11, 2021D$514,688,117
similar: $480,782–$5,000,000
$514,688,11768
similar: 1–9
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorMay 6, 2020D/A$461,401,748
similar: $1,100,015–$10,001,163
$461,401,74851
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorMay 6, 2020D/A$264,494,761
similar: $1,100,015–$10,001,163
$264,494,76143
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorFeb 26, 2020D$478,802,793
similar: $1,100,015–$10,001,163
$478,802,79355
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sigma Computing, Inc.DirectorNov 18, 2019D$30,000,000
similar: $500,000–$7,000,000
$00
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Lacework, Inc.DirectorSep 13, 2019D$42,000,000
similar: $480,782–$5,000,000
$7,000,00025
similar: 1–9
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorOct 16, 2018D$449,999,600
similar: $1,100,015–$10,001,163
$437,280,77349
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorJan 25, 2018D$263,494,759
similar: $1,100,015–$10,001,163
$263,494,75942
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Skyport Systems, Inc.DirectorJun 15, 2017D$30,000,001
similar: $1,100,015–$10,001,163
$29,699,99429
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Skyport Systems, Inc.DirectorJun 15, 2017D$29,999,989
similar: $1,100,015–$10,001,163
$29,999,98935
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Skyport Systems, Inc.DirectorJun 15, 2017D$7,000,000
similar: $1,100,015–$10,001,163
$7,000,00025
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 11, 2017D$78,834,305
similar: $1,100,015–$10,001,163
$78,834,30546
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 11, 2017D$19,949,670
similar: $1,100,015–$10,001,163
$19,949,67037
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 11, 2017D$4,999,111
similar: $1,100,015–$10,001,163
$4,999,11125
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 11, 2017D$899,999
similar: $1,100,015–$10,001,163
$899,99923
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Snowflake Inc.DirectorApr 11, 2017D$104,999,963
similar: $1,100,015–$10,001,163
$99,999,95947
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗FREESTYLE SOFTWARE, INC.
group: Freestyle
DirectorJul 2, 2015D$4,975,000
similar: $1,100,015–$10,001,163
$4,975,00031
similar: 2–14
No minimum reported
similar: $5,000–$50,000
EDGAR ↗Sumo Logic, Inc.DirectorJun 1, 2015D$80,555,775
similar: $1,100,015–$10,001,163
$80,099,95635
similar: 2–14
No minimum reported
similar: $5,000–$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 Technology / 506(b) (17,390 filings); Other / 506(b) (18,678 filings); Computers / 506(b) (499 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.

  • John McMahon — address state MA, 3 issuers, Jan 13, 2012 → Feb 16, 2016
  • John J. McMahon, Jr. — address state AL, 1 issuer, Nov 8, 2010 → Nov 8, 2010
  • John McMahon — address state NY, 1 issuer, Feb 20, 2013 → May 5, 2014
  • JOHN MCMAHON — address state CO, 1 issuer, Jun 6, 2016 → Jun 6, 2016
  • John D. McMahon — address state WI, 1 issuer, Mar 21, 2017 → Mar 21, 2017
  • John P. McMahon — address state MA, 1 issuer, Aug 14, 2013 → Jun 12, 2015
  • John Ryan McMahon — address state NY, 1 issuer, Jan 9, 2015 → Jan 9, 2015

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

Listed alongside — 40 names on the same filings (0 management entities, 40 people)

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

  • Michael L. Speiser — 25 shared filings (6 issuers) · roles as listed: Director, Executive Officer · also listed on 9 other issuers
  • Kevin Wang — 14 shared filings (2 issuers) · role as listed: Director · also listed on 3 other issuers
  • Jeremy Burton — 14 shared filings (2 issuers) · roles as listed: Director, Executive Officer · also listed on 3 other issuers
  • Benoit Dageville — 11 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • John Walecka — 10 shared filings (1 issuer) · role as listed: Director · also listed on 12 other issuers
  • Thierry Cruanes — 10 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Scott Dietzen — 7 shared filings (1 issuer) · role as listed: Director · also listed on 4 other issuers
  • Denise Persson — 7 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 1 other issuer
  • Marcin Zukowski — 7 shared filings (1 issuer) · role as listed: Executive Officer
  • Robert Muglia — 7 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 2 other issuers
  • Stefan Dyckerhoff — 6 shared filings (2 issuers) · role as listed: Director · also listed on 13 other issuers
  • Jason Frantz — 6 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Robert Woollen — 6 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Michael Palmer — 6 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 8 other issuers
  • Jeffrey T. Balaguras — 6 shared filings (1 issuer) · role as listed: Executive Officer
  • Matthew Glickman — 6 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 1 other issuer
  • Sameet Agarwal — 6 shared filings (1 issuer) · role as listed: Executive Officer
  • Christopher Degnan — 6 shared filings (1 issuer) · role as listed: Executive Officer
  • Barbara Walkowski — 5 shared filings (1 issuer) · role as listed: Executive Officer
  • Jon Bock — 5 shared filings (1 issuer) · role as listed: Executive Officer
  • Chris Degnan — 5 shared filings (1 issuer) · role as listed: Executive Officer
  • Mark Garrett — 5 shared filings (1 issuer) · role as listed: Director
  • Michael P. Scarpelli — 4 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 2 other issuers
  • Frank Slootman — 4 shared filings (1 issuer) · roles as listed: Executive Officer, Director · also listed on 4 other issuers
  • Carl Eschenbach — 4 shared filings (1 issuer) · role as listed: Director · also listed on 4 other issuers
  • Teresa Briggs — 4 shared filings (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Kelly Kramer — 4 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Brad Gerstner — 3 shared filings (1 issuer) · role as listed: Director · also listed on 53 other issuers
  • Michael Volpi — 3 shared filings (1 issuer) · role as listed: Director · also listed on 3 other issuers
  • Paul H. Denton — 3 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 1 other issuer
  • Michael J. Beesley — 3 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Kelly Seelig — 3 shared filings (1 issuer) · role as listed: Executive Officer
  • Robert S. Rodgers — 3 shared filings (1 issuer) · role as listed: Executive Officer
  • Arthur W. Gilliland — 3 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Rick Hanson — 3 shared filings (1 issuer) · role as listed: Executive Officer
  • Vikram Kapoor — 3 shared filings (1 issuer) · roles as listed: Director, Executive Officer
  • Daniel Sturman — 3 shared filings (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Sahir Azam — 3 shared filings (1 issuer) · role as listed: Director
  • Jacob Leverich — 3 shared filings (1 issuer) · role as listed: Executive Officer
  • Keith Butler — 3 shared filings (1 issuer) · role as listed: Executive Officer

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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