BioAge Labs, Inc (BIOA) Ownership
BIOA ownership summary
as of October 18, 2026- Institutions
- 91.3% of shares outstanding
- Insiders
- 2.36% of shares outstanding
- Shares outstanding
- 45.9M
- Float
- 39.2M shares available to trade
- Short interest
- 8.03% 3.3M shares short
- Days to cover
- 4.67 short interest up 6.5% vs prior month
- Institutions 91.27%
- Insiders 2.36%
- Other investors 6.37%
BIOA top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 6.21% | 2.8M | $13.8M | +581,321 (+25.6%) | June 30, 2026 |
| 2 | Cormorant Asset Management, LLC | 5.21% | 2.4M | $11.6M | −500,000 (−17.3%) | June 30, 2026 |
| 3 | Sofinnova Ventures | 5.00% | 2.3M | $11.1M | — | June 30, 2026 |
| 4 | Jupiter Topco LLC | 4.67% | 2.1M | $10.4M | +2.1M (0.0%) | June 30, 2026 |
| 5 | HHG PLC | 4.56% | 2.1M | $10.1M | +1.7M (+411.8%) | March 31, 2026 |
| 6 | Octagon Capital Advisors LP | 3.81% | 1.7M | $8.5M | — | June 30, 2026 |
| 7 | RA Capital Management, LLC | 3.64% | 1.7M | $8.1M | +21,000 (+1.3%) | June 30, 2026 |
| 8 | MPM Oncology Impact Management LP | 3.63% | 1.7M | $8.1M | +1.7M (0.0%) | June 30, 2026 |
| 9 | Vanguard Capital Management, LLC | 3.36% | 1.5M | $7.5M | +189,308 (+14.0%) | June 30, 2026 |
| 10 | Polar Capital Holdings PLC | 2.34% | 1.1M | $5.2M | −60,296 (−5.3%) | June 30, 2026 |
| 11 | BRAIDWELL LP | 2.25% | 1.0M | $5.0M | −167,458 (−13.9%) | June 30, 2026 |
| 12 | State Street Corp | 2.23% | 1.0M | $4.9M | +170,570 (+20.0%) | June 30, 2026 |
| 13 | Geode Capital Management, LLC | 2.19% | 1.0M | $4.9M | +254,998 (+34.0%) | June 30, 2026 |
| 14 | Sands Capital Ventures, LLC | 1.71% | 786K | $3.8M | — | June 30, 2026 |
| 15 | Orbimed Advisors LLC | 1.64% | 752K | $3.6M | +40,342 (+5.7%) | June 30, 2026 |
| 16 | D. E. Shaw & Co LP | 1.62% | 743K | $3.6M | +43,571 (+6.2%) | June 30, 2026 |
| 17 | Balyasny Asset Management LLC | 1.53% | 703K | $3.4M | −624,687 (−47.1%) | June 30, 2026 |
| 18 | Pivotal bioVenture Partners Investment Advisor LLC | 1.42% | 653K | $3.2M | — | June 30, 2026 |
| 19 | Cosmic Management, LLC | 1.09% | 502K | $2.4M | — | June 30, 2026 |
| 20 | StemPoint Capital LP | 1.01% | 464K | $2.2M | −213,137 (−31.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 6.8M shares and 5 cut 1.6M.
BIOA top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.49% | 1.1M | $5.5M | — | August 31, 2026 |
| 2 | Polar Capital Biotech S Inc | 2.21% | 1.0M | $4.9M | — | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 1.82% | 836K | $4.0M | −9,664 (−1.1%) | September 30, 2026 |
| 4 | State Street® SPDR® S&P® PhrmctlsETF | 1.12% | 513K | $2.5M | −6,376 (−1.2%) | September 30, 2026 |
| 5 | Fidelity Small Cap Index | 0.84% | 385K | $1.9M | +3,647 (+1.0%) | July 31, 2026 |
| 6 | iShares Russell 2000 Value ETF | 0.58% | 268K | $1.3M | +406 (+0.2%) | September 30, 2026 |
| 7 | Franklin Biotechnology Discv A(acc)USD | 0.54% | 249K | $1.2M | — | August 31, 2026 |
| 8 | iShares Biotechnology ETF | 0.54% | 247K | $1.2M | −1,872 (−0.8%) | September 30, 2026 |
| 9 | JPMorgan Small Cap Value I | 0.52% | 238K | $1.2M | +194,943 (+450.1%) | August 31, 2026 |
| 10 | Fidelity Enhanced Small Cap Core ETF | 0.44% | 204K | $988,192 | +426 (+0.2%) | September 30, 2026 |
| 11 | Schwab US Small-Cap ETF™ | 0.44% | 203K | $984,190 | +135 (+0.1%) | September 30, 2026 |
| 12 | Vanguard Russell 2000 ETF | 0.44% | 202K | $979,558 | +4,996 (+2.5%) | August 31, 2026 |
| 13 | Nuveen Quant Small Cap Equity R6 | 0.44% | 202K | $977,002 | — | August 31, 2026 |
| 14 | JPMorgan US Small Company L | 0.41% | 186K | $900,250 | +155,387 (+507.6%) | August 31, 2026 |
| 15 | Fidelity Extended Market Index | 0.34% | 157K | $758,868 | −843 (−0.5%) | August 31, 2026 |
| 16 | BlackRock Advantage Small Cap Core Instl | 0.31% | 143K | $692,498 | +22,819 (+19.0%) | August 31, 2026 |
| 17 | iShares US Pharmaceuticals ETF | 0.31% | 142K | $687,851 | +437 (+0.3%) | September 30, 2026 |
| 18 | Franklin Biotechnology Discovery A | 0.29% | 135K | $653,637 | — | August 31, 2026 |
| 19 | Vanguard US Momentum Factor ETF | 0.28% | 128K | $618,446 | +15,067 (+13.4%) | June 30, 2026 |
| 20 | Dimensional US Small Cap ETF | 0.26% | 117K | $567,500 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
BIOA insider transactions
latest 5| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-02 | Paul D Rubin | Sell | $18.75 | 7,433 | $139,369 |
| 2026-01-13 | Dov A Md Goldstein | Sell | $19.70 | 27,000 | $531,900 |
| 2026-01-13 | Kristen Fortney | Sell | $18.12 | 233,107 | $4.2M |
| 2025-12-09 | Paul D Rubin | Sell | $12.00 | 18,000 | $216,000 |
| 2025-12-04 | Paul D Rubin | Sell | $10.19 | 68,897 | $702,060 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
BIOA shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns BIOA
Institutional investors own 91.3% of BioAge Labs's shares and insiders 2.36%. The largest holder is BlackRock Inc with 6.21% of the shares (2.8M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 5 reduced their stake in the latest filings. Short interest is 8.03% of the float, or 4.67 days of average trading volume. The share count rose 28.1% since 2013.
Related: BIOA analyst forecast, BIOA key metrics. See the BIOA stock overview for the latest quote and news.
BIOA ownership FAQ
Who owns the most BioAge Labs stock?
The largest shareholders of BioAge Labs are BlackRock Inc (6.21%), Cormorant Asset Management, LLC (5.21%), Sofinnova Ventures (5.00%), Jupiter Topco LLC (4.67%), HHG PLC (4.56%).
What percentage of BioAge Labs is owned by institutions?
Institutions hold 91.3% of BioAge Labs's shares outstanding; insiders hold 2.36%.
Which funds own BioAge Labs?
The largest fund holders of BioAge Labs are Vanguard MStar Total Stk Mkt Idx Invest (2.49%), Polar Capital Biotech S Inc (2.21%), iShares Russell 2000 ETF (1.82%), State Street® SPDR® S&P® PhrmctlsETF (1.12%), Fidelity Small Cap Index (0.84%).
What is BioAge Labs's short interest?
3.3M shares of BioAge Labs were sold short, 8.03% of the float; at the average daily volume it would take 4.67 days to cover.
Are insiders buying or selling BioAge Labs?
Of the latest 5 reported insider transactions in BioAge Labs (since December 4, 2025), 0 were purchases and 5 were sales.
How many shares of BioAge Labs are outstanding?
BioAge Labs has 45.9M shares outstanding, of which 39.2M are in the public float.