Nautilus Biotechnology, Inc.
A maker of life-sciences tools that study the human proteome — the vast collection of proteins in the body — by counting individual protein molecules one at a time, a field called proteomics. Its commercial instrument, the Voyager platform, is designed to give researchers a far more complete picture of proteins than older methods, opening doors for drug discovery and diagnostics. Founded in 2016 by Sujal Patel, the entrepreneur behind the storage company Isilon Systems, and Stanford scientist Parag Mallick, the firm borrowed its name from Jules Verne's Nautilus submarine — a nod to its mission of exploring hidden "treasures" deep within biology.
Bought 13.5K
Bought 200.0K
Granted 100 · Bought 752.2K
Sold 5.00M
Bought 100.0K
Bought 50.0K
Bought 90.0K
Bought 53.0K
Granted 10.0K · Bought 30.0K
Bought 30.0K
Bought 4.0K
Granted 82.0K · Sold 82.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Mallick ParagChief Scientist, Director, 10% owner · 3 transactions | -0.9% | 20.49Mas of May 2025 | — | 13.5K | — |
| Edelman Joseph +2 co-filers10% owner, Director · 1 transaction | +19.6% | 19.01Mas of Dec 2021 | — | 200.0K | — |
| Patel Sujal MCEO, President, and Secretary, Director, 10% owner · 17 transactions | — | 17.46M | 100 | 752.2K | — |
| Andreessen Marc L +5 co-filers10% owner · 2 transactions | — | 12.65M | — | — | 5.00M |
| McIlwain Matthew SDirector · 1 transaction | +1.4% | 7.02Mas of Nov 2021 | — | 100.0K | — |
| Posard Matthew L.Director · 4 transactions | — | 140.0Kas of Dec 2021 | — | 50.0K | — |
| Sankar SubramanianSenior VP, Product Development · 4 transactions | — | 91.3Kas of Sep 2022 | — | 90.0K | — |
| Mowry AnnaCFO and Treasurer · 4 transactions | +374.3% | 83.0Kas of May 2025 | — | 53.0K | — |
| Murphy Matthew B.General Counsel · 4 transactions | — | 75.4K | 10.0K | 30.0K | — |
| Weld Gwen EChief People Officer · 1 transaction | — | 30.0Kas of Sep 2022 | — | 30.0K | — |
| Suzuki KentaroChief Marketing Officer · 1 transaction | — | 4.0K | — | 4.0K | — |
| Godwin Mary E.Senior VP, Operations · 4 transactions | — | 0as of Sep 2024 | 82.0K | — | 82.0K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -3.76M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.