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ISSUER PROFILE · CIK 0001808805 · CUSIP 63909J108

Nautilus Biotechnology, Inc.NAUT

5 13D/G filings 5 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 3 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
5
1 SCHEDULE 13D/A · 3 SCHEDULE · 1 SC
Distinct filers
5
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.76
as of 2026-05-29

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $119K
Point72 Asset Mgmt

13D/G Filings Timeline · 5 total

FiledFormFilerStakeSharesIntent
2026-06-04 SCHEDULE 13D/A AH Bio Fund II, L.P. 9.90% 11,682,032 view →
2025-03-05 SCHEDULE Patel Sujal M 15.70% 20,297,732 view →
2025-03-05 SCHEDULE Mallick Parag 17.40% 22,263,911 view →
2025-01-31 SCHEDULE PERCEPTIVE ADVISORS LLC 10.00% 12,594,211 view →
2023-03-01 SC Nautilus Biotechnology, Inc. view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 760,157 1.76 -7.9%
2026-05-15 825,026 2.11 +15.3%
2026-04-30 715,637 2.47 +12.0%
2026-04-15 638,943 2.01 -5.3%
2026-03-31 674,952 1.34 +51.1%
2026-03-13 446,652 2.36 +13.9%
2026-02-27 392,211 1.44 +14.0%
2026-02-13 344,071 2.20 +12.0%
2026-01-30 307,305 1.56 -16.6%
2026-01-15 368,545 1.57 -17.2%
2025-12-31 445,221 2.45 +14.3%
2025-12-15 389,399 1.38 -7.5%

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