AltMountain

5am Ventures

San Francisco, CA · CRD 160395
Hedge fund manager

5am Ventures is an SEC-registered investment adviser based in San Francisco, CA that reports managing 1 hedge fund on Form ADV. It reports $1.1 billion in regulatory assets under management. Its private funds, of all types, hold $947.0 million in gross assets. Its disclosed U.S. stock holdings returned an estimated +48.0% 2026 YTD through Jun 30 (S&P 500: +9.5%), based on 13F filings. Over a longer period they returned an estimated +70.6% from Q3 2024 to Q2 2026, compared with +37.2% for the S&P 500, based on 13F filings.

Regulatory assets under management
$1.1 billionForm ADV Item 5.F
Gross assets of private funds
$947.0 millionAll private fund types, Form ADV
Hedge funds managed
112 private funds in total
Employees
32Form ADV Item 5.A
Registration
SEC-registered adviserCRD 160395
Latest Form ADV
03/30/2026Disciplinary disclosures: none reported

Estimated 13F portfolio performance

Est. 2026 YTD+48.0%Through Q2 2026 · S&P 500 +9.5%
Est. 2-year return+70.6%Q3 2024 – Q2 2026
S&P 500+37.2%Same quarters, price only
13F holdings$287.9 million16 positions, 2026-06-30
$63$117$171Q3 2024Q1 2025Q3 2025Q1 202613F est. $171S&P 500 $137
QuarterEst. 13F returnS&P 500
Q2 2026+11.2%+14.8%
Q1 2026+33.1%-4.6%
Q4 2025+26.9%+2.4%
Q3 2025+34.5%+7.8%
Q2 2025+7.0%+10.4%
Q1 2025-33.1%-4.5%
Q4 2024-11.2%+2.1%
Q3 2024+6.2%+5.4%

Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures

Largest disclosed holdings

  • 56565p103$34.0 million
  • Tyra Biosciences Inc$32.9 million
  • Entrada Therapeutics Inc$29.9 million
  • Pharvaris N V$27.6 million
  • Camp4 Therapeutics Corp$25.6 million
  • Artiva Biotherapeutics Inc$22.8 million
  • Tectonic Therapeutic Inc$20.9 million
  • Zentalis Pharmaceuticals Inc$19.1 million
  • Celldex Therapeutics Inc New Com New$18.5 million
  • Eyepoint Pharmaceuticals Inc$15.0 million

As of 2026-06-30, from 13F filing by 5AM Venture Management, LLC.

Private funds reported on Form ADV (8)

As reported in the adviser's Form ADV filed Nov 13, 2024. Funds also listed from Form D are shown above.

Fund vehicles: feeder funds and single-deal vehicles (3)

Fund
Gross assets
Minimum
Owners
Adviser
5am Co-Investors IV, LP
Delaware, United StatesVenture capital fund
Gross assets$3.4M
MinimumNone set
Owners33
Adviser5am Ventures
5am Co-Investors II, LP
Delaware, United StatesVenture capital fund
Gross assets$1.1M
MinimumNone set
Owners31
Adviser5am Ventures
5am Co-Investors III, LP
Delaware, United StatesVenture capital fund
Gross assets$388K
MinimumNone set
Owners31
Adviser5am Ventures

Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.

From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures