Nautilus Biotechnology
NAUT · NASDAQ
$2.55−$0.08 (−3.04%)TodayMarket closed ·
Prev close $2.63
Who owns NAUT
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 62.7% of NAUT’s shares.
- Mallick (Parag)16.3%
- Patel (Sujal M)13.7%
- Perceptive Advisors LLC9.1%
- Andreessen Horowitz6.0%
- Next 6 largest institutions17.5%
- All other shareholders37.3%
| Holder | Shares | % of shares |
|---|---|---|
| Mallick (Parag) | 20.69M | 16.26% |
| Patel (Sujal M) | 17.46M | 13.72% |
| Perceptive Advisors LLC | 11.63M | 9.14% |
| Andreessen Horowitz | 7.68M | 6.04% |
| Cercano Management LLC | 7.17M | 5.64% |
| Madrona Venture Group, LLC | 6.02M | 4.73% |
| Vanguard Capital Management, LLC | 2.55M | 2.00% |
| BlackRock Institutional Trust Company, N.A. | 2.41M | 1.90% |
| Comprehensive Financial Management LLC | 2.21M | 1.73% |
| Citadel Advisors LLC | 1.90M | 1.49% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 1.93M | 1.52% |
| iShares Russell 2000 ETF | 1.07M | 0.84% |
| JPMorgan Small Cap Value Fund | 631.60K | 0.50% |
| Vanguard Extended Market Index Fund | 543.26K | 0.43% |
| Fidelity Small Cap Index Fund | 542.34K | 0.43% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $11.75M (2 trades) of NAUT on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Epperly Melissa B, | Award | 45.00K | — |
| Akinsanya Karen | Award | 45.00K | — |
| Posard Matthew L. | Award | 45.00K | — |
| McIlwain Matthew S | Award | 45.00K | — |
| NAZEM FARZAD | Award | 45.00K | — |
| Andreessen Marc L | Sale | 384.03K | $902.46K |
| Andreessen Marc L | Sale | 4.62M | $10.85M |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.77M
- Days to cover
- 1.42
- % of shares outstanding
- 4.53%
- Average daily volume
- 4.07M
- Change since last report
- +41.4%
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