Oliver Mulherin
All Connections
11 total
All Connections
11 totalOliver Mulherin is the sole manager of Structure Fund I GP LLC. Mulherin married Sam Altman in January 2024, making him Altman's husband. Structure Fund I operates from the Altman family office address.
Oliver Mulherin is the husband of Sam Altman (married January 2024, Hawaii). Structure Fund I is Mulherin's independent investment vehicle operating within the Altman family financial infrastructure.
Mulherin is sole manager of Structure Fund I GP LLC, the general partner of Structure Fund I LP — controls the fund
Oliver Mulherin is sole manager of Structure Fund I GP LLC and Structure Fund I LP — new investment vehicles formed 52 days after OpenAI PBC recapitalization; Mulherin married Altman Jan 2024
Oliver Mulherin and Sam Altman backed Preventive PBC (embryo gene editing, ~$30M raise, ~Nov 2025). Mulherin described as 'driving force' behind the investment. Investment predates Structure Fund formal incorporation (Dec 2025) — likely personal or prior SPV vehicle.
Structure Fund I LP (Mulherin as sole manager of GP) led $37M Centivax financing round in March 2026. Mulherin/Altman are lead investors in Glanville's company.
Oliver Mulherin's Structure Fund I GP LLC and LP use the Altman family office Pelham Road mailbox address and CT Corp as registered agent — the same agent as the two most recent OpenAI Startup Fund entities. Structure Fund is integrated into the family office administrative infrastructure immediately on formation.
Oliver Mulherin donated $3,300 (max primary) to Friends of Maria (Maria Cantwell for Senate, WA DEM) on 2024-06-16 via ActBlue. Cantwell is Ranking Member of Senate Commerce Committee with jurisdiction over AI and telecommunications policy. Donation made ~5 months after Altman-Mulherin wedding. Sam Altman has extensive AI policy influence operation (separate lead).
Brian Armstrong (Coinbase CEO) is a co-investor alongside Altman/Mulherin in Preventive, the embryo gene-editing startup. No other documented connection.
Oliver Mulherin donated $3,300 to Friends of Maria Cantwell (committee C00349506) in 2024. David Schwietert (Akin Gump) is a former Cantwell Commerce Committee Staff Director retained as an OpenAI lobbyist. Both Mulherin's donation and Schwietert's lobbying role are aligned around Cantwell's Commerce Committee jurisdiction over AI regulation.
All Findings
16 total
All Findings
16 totalfinancial (4)
Preventive PBC ($30M gene editing raise, Nov 2025) — Mulherin-led personal investment predating Structure Fund formation
Oliver Mulherin and Sam Altman backed Preventive PBC (San Francisco), a gene editing startup targeting embryonic hereditary disease prevention. Preventive raised ~$30M from private funders (~November 2025). Mulherin stated he was the 'driving force' behind the Preventive investment. The timing (Nov 2025) predates Structure Fund's formal incorporation (Dec 19, 2025), suggesting Preventive was invested personally or through a prior SPV — not through Structure Fund I LP. The Preventive investment and the fund's formation are consistent with Mulherin formalizing a biotech investment practice.
Altman and Mulherin backed Preventive gene-editing startup ($30M) in November 2025 — Mulherin made public investment statement
Sam Altman and Oliver Mulherin are confirmed investors in Preventive (preventive.bio), a San Francisco public benefit corporation focused on embryo gene editing to prevent hereditary diseases. Raised ~$30M. Founder: Lucas Harrington (PhD from Jennifer Doudna lab; co-founder Mammoth Biosciences). Co-investor: Brian Armstrong (Coinbase CEO). Mulherin stated: 'I chose to invest in Preventive because I care about research that helps people avoid disease.' Investment announced November 2025, before Structure Fund I GP formal incorporation (December 2025) — vehicle unclear. Gene editing in embryos is illegal in US/UK; Preventive reportedly evaluating UAE for clinical testing.
8595 Pelham Road Suite 400 #309, Greenville SC 29615 is a shared commercial mailbox address used by Oliver Mulherin's Structure Fund entities and at least 25 Sam Altman personal entities including the full Hydrazine Capital fund family, Apollo Projects, 9Point Ventures, Altman Family LLC, Altman Holdco, Uncommon Ventures, 950 Lombard LLC, Amberley Properties, and Sam Altman Qualified Opportunity Fund.
OpenCorporates shows 48 total entities at this address. Altman entities include: 950 LOMBARD LLC, 9POINT VENTURES LLC, ALTMAN FAMILY LLC, ALTMAN HOLDCO LLC, APOLLO PROJECTS GP LLC, APOLLO PROJECTS SPV-A GP LLC, APOLLO PROJECTS SPV-A LP, APOLLO PROJECTS SPV-B LP, APOLLO PROJECTS LP, AVONDALE VC LLC, Altman 3 LLC, Amberley Properties LLC, Elfin Cove Capital LLC, HYDRAZINE CAPITAL GP LLC, HYDRAZINE CAPITAL II AIV (AC) LP, HYDRAZINE CAPITAL II GP LLC, HYDRAZINE CAPITAL II SPV LLC, HYDRAZINE CAPITAL II LP, HYDRAZINE CAPITAL IV GP LLC, HYDRAZINE CAPITAL IV LP, HYDRAZINE CAPITAL MANAGEMENT LLC, HYDRAZINE CAPITAL LP, Project 2024 LLC, SAM ALTMAN QUALIFIED OPPORTUNITY FUND LLC, UNCOMMON VENTURES LLC. This indicates Mulherin's fund uses the Altman family office shared mailbox infrastructure.
Structure Fund I LP led $37M Centivax financing round in March 2026 — first confirmed public investment by Mulherin-managed fund
Structure Fund (Oliver Mulherin & Sam Altman) led a $37 million oversubscribed financing for Centivax, a South San Francisco-based universal flu vaccine developer (CEO Jacob Glanville). Co-investors: Meiji Seika Pharma Co. Ltd. (Japan), Sigmas Group, Kendall Capital Partners, and Stripe co-founders Patrick and John Collison. Centivax total raised: $133M. Phase 2 trials scheduled early 2027. This is the first publicly confirmed deployment of Structure Fund capital.
corporate (4)
Structure Fund I GP, LLC incorporated in Delaware 2025-12-19, file number 10446191. Registered agent: The Corporation Trust Company, 1209 Orange St, Wilmington DE 19801.
Domestic Limited Liability Company. Delaware filing shows no manager names — manager identified through California foreign registration.
Structure Fund I, L.P. incorporated in Delaware 2025-12-31, file number 10456942. Registered agent: The Corporation Trust Company, 1209 Orange St, Wilmington DE 19801.
Domestic Limited Partnership. GP is Structure Fund I GP LLC. Formed 12 days after the GP entity. Both the GP and LP registered in California on the same day (2026-01-07), suggesting coordinated fund launch.
Structure Fund I GP, LLC registered as foreign LLC in California 2026-01-07, file B20260012553. Oliver Mulherin listed as sole manager. Registered address 8595 Pelham Road Suite 400 #309, Greenville SC 29615. California agent: CT Corporation System, Glendale CA.
Foreign LLC out-of-state (Delaware). Status: Active. This is the GP entity for Structure Fund I LP, indicating Mulherin controls the general partner of the fund.
Structure Fund I, L.P. registered as foreign LP in California 2026-01-07, file B20260012408. General Partner: Structure Fund I GP LLC. Registered address 8595 Pelham Road Suite 400 #309, Greenville SC 29615.
Foreign limited partnership out-of-state (Delaware). Status: Active. GP/LP structure consistent with standard venture capital fund. No SEC Form D found as of 2026-04-06. If fund has accepted capital, Form D required within 15 days of first sale.
background (5)
Oliver Mulherin born 1993 in Melbourne, Australia. Attended John Monash Science School. Bachelor CS, University of Melbourne 2014-2016. Married Sam Altman January 11, 2024 in Hawaii. Son born prematurely February 2025. Met Altman at Peter Thiel's residence in 2015.
Career: Vital-Sim (2014-2015, rail simulation, Canada), PROPL co-founder (2015-2017, Melbourne AI startup), IOTA Foundation software dev (2017-2018, crypto DLT), SPARK Neuro software eng (2019-2020, NYC, EEG dementia diagnosis), Broadwing software eng (2019-2020, NYC), Meta software eng (Aug 2020-Nov 2022, Menlo Park CA). Not employed since Nov 2022 per FEC filing.
Oliver Mulherin joined the IOTA Foundation as a software developer in 2017, welcomed publicly by IOTA co-founder David Sønstebø on Medium. He contributed to the WebGL Curl library improving efficiency by 30-40%.
IOTA is a distributed ledger technology (DLT) / cryptocurrency project. Mulherin's 2017-2018 tenure at IOTA may have included token compensation (MIOTA tokens), which if retained could represent significant undisclosed asset. IOTA Foundation is a non-profit registered in Germany.
Oliver Mulherin worked as Fullstack Core-Dev at IOTA Foundation 2017-2018 — potential unconfirmed MIOTA token compensation
Oliver Mulherin joined IOTA Foundation as a software developer in August 2017, welcomed publicly by co-founder David Sønstebø on Medium. He worked as a Fullstack Core-Dev, contributing to the WebGL Curl library (30-40% efficiency improvement). IOTA Foundation is a German non-profit focused on DLT for IoT. Early contributors to IOTA were compensated in MIOTA tokens. If Mulherin retained any early IOTA allocation from 2017-2018, this would represent a potentially significant undisclosed asset given MIOTA's price history. Left IOTA Foundation circa 2018.
Oliver Mulherin and Sam Altman jointly signed the Giving Pledge in May 2024, committing to donate the majority of their wealth. Their pledge letter focused on 'supporting technology that helps create abundance for people.'
Giving Pledge URL: givingpledge.org/pledger/sam-altman-and-oliver-mulherin/. Mulherin listed as co-pledger alongside Altman. Consistent with Altman's AI abundance thesis.
Oliver Mulherin born 1993 in Australia. CS degree from University of Melbourne. Software engineer at Meta Aug 2020 to Nov 2022. Previously worked at SPARK Neuro dementia detection startup. Married Sam Altman Jan 2024 in Hawaii. They have a son born 2025. Signed Giving Pledge May 2024. FEC shows single donation of 3300 to Friends of Maria from Greenville listed as not employed.
political (2)
Oliver Mulherin donated $3,300 to FRIENDS OF MARIA (committee C00349506), the principal campaign committee of Sen. Maria Cantwell (D-WA), via ActBlue on June 16, 2024. Donor address: 8595 Pelham Rd, Greenville SC 29615. Employer/occupation: NOT EMPLOYED.
FEC Schedule A filing, sub_id 4091820242040945237. Receipt type 15E (earmarked contribution). Report: Q2 2024, load date 2024-09-19. $3,300 is the maximum individual primary contribution for the 2024 cycle. Maria Cantwell is WA senior senator and Ranking Member of the Commerce Committee with AI policy jurisdiction. Donated ~5 months after Altman-Mulherin wedding (Jan 2024) and ~2 weeks after Giving Pledge signing (May 2024).
FEC record: Oliver Mulherin donated $3,300 (max) to Friends of Maria/Cantwell Victory 2024 — identity unverified due to South Carolina address
FEC record shows MULHERIN, OLIVER | GREENVILLE SC | 8595 PELHAM RD | NOT EMPLOYED | $3,300 | 2024-06-16 | FRIENDS OF MARIA (Cantwell Victory 2024, C00349506). Identity is uncertain: the address (Greenville, SC) is inconsistent with Oliver Mulherin Altman's known San Francisco residence. The $3,300 is the 2024 cycle maximum individual contribution. Cantwell chairs the Senate Commerce Committee, which has primary AI jurisdiction.
network (1)
Stripe co-founders Patrick and John Collison co-invested with Structure Fund in Centivax — new Altman network linkage
Patrick Collison (Stripe CEO) and John Collison (Stripe President) participated as co-investors alongside Structure Fund in the Centivax $37M round in March 2026. This is the first documented direct investment co-participation between the Collison brothers and Mulherin/Altman's Structure Fund vehicle. The Collisons are among the most prominent figures in Silicon Valley tech and have prior connections to Altman through Y Combinator and OpenAI ecosystems.