Nautilus Biotechnology (NAUT) stock: insider trades, news & valuation
Net sellingShare price and insider trades
Nautilus Biotechnology insider trading at a glance (Oct 9, 2026): in the past 12 months, 1 insider bought $65K and 1 sold $11.8M of NAUT stock on the open market.
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NAUT insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | — | 0 | $11.8M | 2 |
| Q1 2026 | $65K | 1 | — | 0 |
| Q4 2025 | $6K | 1 | — | 0 |
Valuation, profit and volume
Summary
Over the past 12 months, 1 Nautilus Biotechnology, Inc. insider reported open-market purchases totaling $65K, while 1 insider reported sales totaling $11.8M. 0 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 4SEC | Ah Bio Fund Ii, L.P.10% Owner | Sell | 4,615,97411,682,032 held (−28%) | $2.35 | $10.8M | -4.3% | — |
| Jun 4SEC | Ah Bio Fund Ii, L.P.10% Owner | Sell | 384,026971,885 held (−28%) | $2.35 | $902K | -4.3% | — |
| Mar 4SEC | Sujal M PatelCEO, President | Buy | 25,00010,366,721 held (+0%) | $2.61 | $65K | -13.8% | — |
| Nov 10SEC | Kentaro SuzukiChief Marketing Officer | Buy | 4,000new position | $1.49 | $6K | +51.0% | — |
Insiders at Nautilus Biotechnology, Inc.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Ah Bio Fund Ii, L.P.10% Owner | — | $11.8M | Jun 4, 2026 | — |
| Sujal M PatelCEO, President | $65K | — | Mar 4, 2026 | — |
| Kentaro SuzukiChief Marketing Officer | $6K | — | Nov 10, 2025 | — |
NAUT stock: common questions
Are Nautilus Biotechnology, Inc. insiders buying NAUT stock?
In the past 12 months, 1 insiders reported open-market purchases of NAUT worth $65K. The latest was CEO, President Sujal M Patel bought $65K of NAUT at $2.61 — first open-market purchase in our records.
Are Nautilus Biotechnology, Inc. insiders selling NAUT stock?
1 insiders reported sales worth $11.8M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is NAUT's 52-week range?
Over the past year NAUT has traded between $0.85 and $3.95. It last closed at $2.25 on Oct 9, 2026.