Nautilus Biotechnology, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Suzuki Kentaro | Chief Marketing Officer | Purchase | 4,000 | $1.49 | $5,960 | 4,000 | Nov 6, 2025 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 83,500 | $0.68 | $56,780 | 10,341,721 | Sep 5, 2025 |
| Murphy Matthew B. | General Counsel | Purchase | 20,000 | $0.64 | $12,800 | 74,140 | Sep 4, 2025 |
| Mowry Anna | CFO and Treasurer | Purchase | 15,000 | $0.77 | $11,550 | 83,000 | May 29, 2025 |
| Mallick Parag | Chief Scientist | Purchase | 12,000 | $0.73 | $8,760 | 20,491,892 | May 12, 2025 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 23,933 | $1.00 | $23,933 | 10,141,721 | Mar 19, 2025 |
| Godwin Mary E. | Senior VP, Operations | Sale | 47,031 | $2.87 | $134,979 | — | Sep 23, 2024 |
| Godwin Mary E. | Senior VP, Operations | Option Exercise | 35,000 | $0.46 | $16,100 | 35,000 | Sep 17, 2024 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 12,044 | $2.84 | $34,205 | 10,064,488 | Mar 8, 2024 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 9,267 | $2.70 | $25,021 | 10,031,160 | Mar 5, 2024 |
| Sankar Subramanian | Senior VP, Product Development | Purchase | 5,000 | $2.03 | $10,150 | 91,250 | Sep 26, 2022 |
| Weld Gwen E | Chief People Officer | Purchase | 30,000 | $2.03 | $60,900 | 30,000 | Sep 23, 2022 |
| Sankar Subramanian | Senior VP, Product Development | Purchase | 40,000 | $2.19 | $87,600 | 40,000 | Sep 16, 2022 |
| Mowry Anna | CFO and Treasurer | Purchase | 17,500 | $2.30 | $40,250 | 56,750 | Aug 19, 2022 |
| Murphy Matthew B. | General Counsel | Purchase | 7,500 | $2.84 | $21,300 | 54,140 | Aug 12, 2022 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 41,654 | $2.92 | $121,630 | 10,006,142 | Aug 8, 2022 |
| Mowry Anna | CFO and Treasurer | Purchase | 5,500 | $2.75 | $15,125 | 39,250 | Jun 27, 2022 |
| Murphy Matthew B. | General Counsel | Award / Grant | 10,000 | $3.28 | $32,800 | 44,140 | May 12, 2022 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 50,000 | $3.96 | $198,000 | 9,964,488 | May 9, 2022 |
| Patel Sujal M | CEO, President, and Secretary | Option Exercise | 100 | $10.00 | $1,000 | 9,914,488 | Mar 3, 2022 |
| Mallick Parag | Chief Scientist | Gift | 210,000 | — | — | 20,479,892 | Dec 21, 2021 |
| PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | — | Purchase | 200,000 | $5.36 | $1,072,000 | 9,111,151 | Dec 8, 2021 |
| Patel Sujal M | CEO, President, and Secretary | Purchase | 88,022 | $4.73 | $416,344 | 9,864,388 | Nov 30, 2021 |
| Posard Matthew L. | — | Purchase | 10,000 | $4.46 | $44,600 | 40,000 | Nov 30, 2021 |
| Mowry Anna | CFO and Treasurer | Purchase | 15,000 | $4.58 | $68,700 | 32,500 | Nov 24, 2021 |
| McIlwain Matthew S | — | Purchase | 100,000 | $5.30 | $530,000 | 459,075 | Nov 15, 2021 |
| McIlwain Matthew S | — | Purchase | 11,693 | $7.74 | $90,504 | 347,366 | Aug 24, 2021 |
| Murphy Matthew B. | General Counsel | Purchase | 5,000 | $7.56 | $37,800 | 34,140 | Aug 13, 2021 |
| Mowry Anna | CFO and Treasurer | Purchase | 17,500 | $7.71 | $134,925 | 17,500 | Aug 12, 2021 |
| ALTMAN MICHAEL SETH | — | C | 499,000 | — | — | 499,000 | Jun 9, 2021 |
| PERCEPTIVE ADVISORS LLC | — | Purchase | 330,050 | $10.05 | $3,317,003 | 489,975 | Jun 3, 2021 |
| PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | — | Purchase | 5,500,000 | $10.00 | $55,000,000 | 5,997,038 | May 24, 2021 |
| PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | — | Purchase | 159,925 | $10.05 | $1,607,246 | 159,925 | May 20, 2021 |
| ALTMAN MICHAEL SETH | Chief Financial Officer | Other | 499,000 | $10.00 | $4,990,000 | 499,000 | Aug 11, 2020 |
| Stone Adam Leo | Chief Executive Officer | Other | 499,000 | $10.00 | $4,990,000 | 499,000 | Aug 11, 2020 |
| ARYA Sciences Holdings III | — | Other | 499,000 | $10.00 | $4,990,000 | 499,000 | Aug 11, 2020 |