NAUT
Nautilus Biotechnology Inc
NASDAQ: NAUT · HEALTHCARE · BIOTECHNOLOGY
$3.21
+11.07% today
Updated 2026-10-28
Market cap
$262.15M
P/E ratio
—
P/S ratio
1,379.71x
EPS (TTM)
$-0.45
Dividend yield
—
52W range
$1 – $4
Volume
6.3M
Nautilus Biotechnology Inc (NAUT) Insider transactions
Net insider activity
Net buying (10,348,771 shares)
Buy transactions
95
Sell transactions
5
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-04 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 25,000 | $2.61 | $65237.50 |
| 2026-03-02 | WELD, GWEN E | Chief People Officer | Buy | 160,000 | — | — |
| 2026-03-02 | SUZUKI, KENTARO | Chief Marketing Officer | Buy | 160,000 | — | — |
| 2026-03-02 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 160,000 | — | — |
| 2026-03-02 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 650,000 | — | — |
| 2026-03-02 | MURPHY, MATTHEW B. | General Counsel | Buy | 160,000 | — | — |
| 2026-03-02 | MOWRY, ANNA | CFO and Treasurer | Buy | 160,000 | — | — |
| 2026-03-02 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 280,000 | — | — |
| 2025-11-06 | SUZUKI, KENTARO | Chief Marketing Officer | Buy | 4,000 | $1.49 | $5960.00 |
| 2025-09-08 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 83,500 | $0.68 | $57030.50 |
| 2025-09-05 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 116,500 | $0.67 | $78544.30 |
| 2025-09-04 | MURPHY, MATTHEW B. | General Counsel | Buy | 20,000 | $0.64 | $12858.00 |
| 2025-06-23 | POSARD, MATTHEW L. | Director | Buy | 45,000 | — | — |
| 2025-06-23 | NAZEM, FARZAD | Director | Buy | 45,000 | — | — |
| 2025-06-23 | MCILWAIN, MATTHEW S | Director | Buy | 45,000 | — | — |
| 2025-06-23 | EPPERLY, MELISSA B, | Director | Buy | 45,000 | — | — |
| 2025-06-23 | AKINSANYA, KAREN | Director | Buy | 45,000 | — | — |
| 2025-05-29 | MOWRY, ANNA | CFO and Treasurer | Buy | 15,000 | $0.77 | $11488.50 |
| 2025-05-12 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 1,500 | $0.73 | $1097.55 |
| 2025-05-08 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 12,000 | $0.73 | $8787.60 |
| 2025-03-20 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 23,933 | $1.00 | $23889.92 |
| 2025-03-19 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 53,300 | $0.99 | $53028.17 |
| 2025-03-03 | WELD, GWEN E | Chief People Officer | Buy | 160,000 | — | — |
| 2025-03-03 | SUZUKI, KENTARO | Chief Marketing Officer | Buy | 50,000 | — | — |
| 2025-03-03 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 160,000 | — | — |
| 2025-03-03 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 650,000 | — | — |
| 2025-03-03 | NELSON, NICHOLAS A. | CBO & Senior VP, Bus. Dev. | Buy | 160,000 | — | — |
| 2025-03-03 | MURPHY, MATTHEW B. | General Counsel | Buy | 160,000 | — | — |
| 2025-03-03 | MOWRY, ANNA | CFO and Treasurer | Buy | 160,000 | — | — |
| 2025-03-03 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 280,000 | — | — |
| 2024-09-23 | GODWIN, MARY E. | Senior VP, Operations | Sale | 47,031 | — | — |
| 2024-09-23 | GODWIN, MARY E. | Senior VP, Operations | Sale | 47,031 | $2.87 | $134743.82 |
| 2024-09-17 | GODWIN, MARY E. | Senior VP, Operations | Sale | 35,000 | — | — |
| 2024-09-17 | GODWIN, MARY E. | Senior VP, Operations | Sale | 35,000 | $2.85 | $99869.00 |
| 2024-09-16 | SUZUKI, KENTARO | Chief Marketing Officer | Buy | 375,000 | — | — |
| 2024-06-14 | POSARD, MATTHEW L. | Director | Buy | 45,000 | — | — |
| 2024-06-14 | PERCEPTIVE, ADVISORS LLC | Director, 10% Owner | Buy | 45,000 | — | — |
| 2024-06-14 | PANDE, VIJAY SATYANAND | Director | Buy | 45,000 | — | — |
| 2024-06-14 | NAZEM, FARZAD | Director | Buy | 45,000 | — | — |
| 2024-06-14 | MCILWAIN, MATTHEW S | Director | Buy | 45,000 | — | — |
| 2024-06-14 | EPPERLY, MELISSA B, | Director | Buy | 45,000 | — | — |
| 2024-06-14 | ALTMAN, MICHAEL SETH | Director | Buy | 45,000 | — | — |
| 2024-06-14 | AKINSANYA, KAREN | Director | Buy | 45,000 | — | — |
| 2024-03-11 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 12,044 | $2.84 | $34215.80 |
| 2024-03-08 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 2,430 | $2.99 | $7262.06 |
| 2024-03-07 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 18,854 | $2.89 | $54423.96 |
| 2024-03-06 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 9,267 | $2.70 | $25033.87 |
| 2024-03-05 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 7,405 | $2.65 | $19596.59 |
| 2024-03-01 | WELD, GWEN E | Chief People Officer | Buy | 160,000 | — | — |
| 2024-03-01 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 160,000 | — | — |
| 2024-03-01 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 650,000 | — | — |
| 2024-03-01 | NELSON, NICHOLAS A. | CBO & Senior VP, Bus. Dev. | Buy | 160,000 | — | — |
| 2024-03-01 | MURPHY, MATTHEW B. | General Counsel | Buy | 160,000 | — | — |
| 2024-03-01 | MOWRY, ANNA | CFO and Treasurer | Buy | 160,000 | — | — |
| 2024-03-01 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 280,000 | — | — |
| 2024-03-01 | GODWIN, MARY E. | Senior VP, Operations | Buy | 160,000 | — | — |
| 2023-06-15 | POSARD, MATTHEW L. | Director | Buy | 45,000 | — | — |
| 2023-06-15 | PERCEPTIVE, ADVISORS LLC | Director | Buy | 45,000 | — | — |
| 2023-06-15 | PANDE, VIJAY SATYANAND | Director | Buy | 45,000 | — | — |
| 2023-06-15 | NAZEM, FARZAD | Director | Buy | 45,000 | — | — |
| 2023-06-15 | MCILWAIN, MATTHEW S | Director | Buy | 45,000 | — | — |
| 2023-06-15 | EPPERLY, MELISSA B, | Director | Buy | 45,000 | — | — |
| 2023-06-15 | ALTMAN, MICHAEL SETH | Director | Buy | 45,000 | — | — |
| 2023-06-15 | AKINSANYA, KAREN | Director | Buy | 45,000 | — | — |
| 2023-02-27 | WELD, GWEN E | Chief People Officer | Buy | 160,000 | — | — |
| 2023-02-27 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 160,000 | — | — |
| 2023-02-27 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 650,000 | — | — |
| 2023-02-27 | NELSON, NICHOLAS A. | CBO & Senior VP, Bus. Dev. | Buy | 160,000 | — | — |
| 2023-02-27 | MURPHY, MATTHEW B. | General Counsel | Buy | 160,000 | — | — |
| 2023-02-27 | MOWRY, ANNA | CFO and Treasurer | Buy | 160,000 | — | — |
| 2023-02-27 | MALLICK, PARAG | Director, Chief Scientist, 10% Owner | Buy | 280,000 | — | — |
| 2023-02-27 | GODWIN, MARY E. | Senior VP, Operations | Buy | 160,000 | — | — |
| 2022-09-27 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 5,000 | $2.03 | $10149.00 |
| 2022-09-26 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 10,000 | $2.03 | $20250.00 |
| 2022-09-23 | WELD, GWEN E | Chief People Officer | Buy | 30,000 | $2.03 | $60765.00 |
| 2022-09-16 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 35,000 | $2.16 | $75446.00 |
| 2022-09-15 | SANKAR, SUBRAMANIAN | Senior VP, Product Development | Buy | 40,000 | $2.19 | $87752.00 |
| 2022-08-19 | MOWRY, ANNA | CFO and Treasurer | Buy | 17,500 | $2.30 | $40218.50 |
| 2022-08-15 | MURPHY, MATTHEW B. | General Counsel | Buy | 7,500 | $2.84 | $21307.50 |
| 2022-08-12 | MURPHY, MATTHEW B. | General Counsel | Buy | 2,500 | $2.85 | $7125.00 |
| 2022-08-08 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 8,346 | $2.93 | $24443.76 |
| 2022-08-05 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 41,654 | $2.92 | $121646.34 |
| 2022-08-03 | GODWIN, MARY E. | Senior VP, Operations | Buy | 30,000 | — | — |
| 2022-06-27 | MOWRY, ANNA | CFO and Treasurer | Buy | 5,500 | $2.75 | $15124.45 |
| 2022-06-15 | POSARD, MATTHEW L. | Director | Buy | 86,467 | — | — |
| 2022-06-15 | PERCEPTIVE, ADVISORS LLC | Director, 10% Owner | Buy | 86,467 | — | — |
| 2022-06-15 | PANDE, VIJAY SATYANAND | Director | Buy | 86,467 | — | — |
| 2022-06-15 | NAZEM, FARZAD | Director | Buy | 86,467 | — | — |
| 2022-06-15 | MCILWAIN, MATTHEW S | Director | Buy | 86,467 | — | — |
| 2022-06-15 | EPPERLY, MELISSA B, | Director | Buy | 86,467 | — | — |
| 2022-06-15 | ALTMAN, MICHAEL SETH | Director | Buy | 86,467 | — | — |
| 2022-06-15 | AKINSANYA, KAREN | Director | Buy | 14,411 | — | — |
| 2022-05-12 | MURPHY, MATTHEW B. | General Counsel | Buy | 10,000 | $3.28 | $32800.00 |
| 2022-05-09 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 50,000 | $3.96 | $198000.00 |
| 2022-05-04 | WELD, GWEN E | Chief People Officer | Buy | 375,000 | — | — |
| 2022-05-04 | NELSON, NICHOLAS A. | CBO & Senior VP, Bus. Dev. | Buy | 54,422 | — | — |
| 2022-03-30 | AKINSANYA, KAREN | Director | Buy | 105,998 | — | — |
| 2022-03-04 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 100 | $10.00 | $1000.00 |
| 2022-03-03 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Sale | 100 | — | — |
| 2022-03-03 | PATEL, SUJAL M | Director, CEO, President, and Secretary, 10% Owner | Buy | 50,000 | $3.60 | $179890.00 |
Frequently asked questions
Are NAUT insiders buying or selling?
Over the transactions on record, NAUT insiders have been net buyers, with about $234612.82 in stock sold across 5 sales, against 30 open-market purchases.
Does insider selling at NAUT mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which NAUT insiders are selling the most?
Recent selling is concentrated in a few names. GODWIN, MARY E. accounts for the largest share on record, with about $234612.82 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.