EDGAR·FLOW

Nautilus Biotechnology, Inc. — Form SCHEDULE 13D/A

Filed November 3, 2026 · analyzed by the Ownership Agent
SCHEDULE 13D/A ▼ Likely negative significance 72/100
What the filing says
Perceptive Life Sciences Master Fund, Ltd. sold approximately 5,472,901 shares of Nautilus Biotechnology between July 28 and October 26, 2026, at prices ranging from $1.31 to $3.12 per share, for aggregate proceeds of ~$10.2M. This represents a substantial block disposition by what appears to be a major shareholder during a compressed timeframe.
Why this rating

Liquidation of ~5.5M shares (~$10.2M proceeds) is 28% of Nautilus's current market cap; signals loss of confidence or capital reallocation by major holder. Relative to $35.8M company, highly material; suggests shareholder stress or negative view.

Price action (we called it negative)
before filing · preread
$2.34
at our read
pending
+10 min
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+30 min
pending
+1 hr
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+4 hrs
pending

Quotes via Yahoo Finance at capture time; for filings arriving outside market hours the clock starts at the next open. Not investment advice. How accurate are our calls? →

View original filing on SEC.gov ↗ NAUT · stock on Yahoo Finance ↗

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EDGAR·FLOW summarizes public SEC EDGAR filings with automated analysis. Materiality scores and stock-impact predictions are algorithmically generated and are not investment advice. Always verify against the source filing on SEC.gov.