SCHEDULE 13D/A Filed 2026-08-14 Event 2026-06-30 SEC 0001193125-26-352644 →

PERCEPTIVE ADVISORS LLC → Nautilus Biotechnology, Inc. NAUT

Stake: 9.10% Shares: 11,634,211 CUSIP: 63909J108 Class: Common Stock, par value $0.0001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

9 13D/G filings on this issuer

8 other filings besides this one

Filer Track Record

34 filings by this filer

33 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 1.42

5,771,054 shares short · +41.4% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers

1 holder · $119K

Point72 Asset Mgmt

Other 13D/G Filings on Nautilus Biotechnology, Inc.

Filed	Form	Filer	Stake	Shares
2026-09-11	SCHEDULE 13D/A	AH Bio Fund II, L.P.	4.90%	5,782,188	view →
2026-08-28	SCHEDULE 13D/A	AH Bio Fund II, L.P.	6.00%	7,094,691	view →
2026-06-30	SCHEDULE 13D/A	AH Bio Fund II, L.P.	—	8,366,966	view →
2026-06-04	SCHEDULE 13D/A	AH Bio Fund II, L.P.	9.90%	11,682,032	view →
2025-03-05	SCHEDULE	Mallick Parag	17.40%	22,263,911	view →
2025-03-05	SCHEDULE	Patel Sujal M	15.70%	20,297,732	view →
2025-01-31	SCHEDULE	PERCEPTIVE ADVISORS LLC	10.00%	12,594,211	view →
2023-03-01	SC	Nautilus Biotechnology, Inc.	—	—	view →

Other Filings by PERCEPTIVE ADVISORS LLC

Filed	Form	Issuer	Stake	Shares
2026-10-01	SCHEDULE 13D/A	Kardigan, Inc.	—	8,254,144	view →
2026-09-23	SCHEDULE 13G	Nurix Therapeutics, Inc.	—	—	view →
2026-08-27	SCHEDULE 13D/A	Immatics N.V.	—	11,418,016	view →
2026-08-25	SCHEDULE 13D/A	LeonaBio, Inc.	19.99%	1,889,403	view →
2026-08-14	SCHEDULE 13D/A	Solid Biosciences Inc.	11.20%	12,046,579	view →
2026-07-23	SCHEDULE 13G	Freenome, Inc.	—	—	view →
2026-07-20	SCHEDULE 13G	Research Alliance Corporation IV	—	—	view →
2026-06-25	SCHEDULE 13D	Kardigan, Inc. KARD	8.90%	8,254,144	view →
2026-01-26	SCHEDULE	TRINITY BIOTECH PLC TRIB	9.90%	1,463,058,248	view →
2026-01-02	SCHEDULE	MeiraGTx Holdings plc MGTX	12.90%	10,441,562	view →
2025-02-21	SCHEDULE	Solid Biosciences Inc. SLDB	15.60%	11,934,679	view →
2025-02-14	SCHEDULE	TRINITY BIOTECH PLC TRIB	20.90%	85,800,000	view →
2025-01-31	SCHEDULE	Nautilus Biotechnology, Inc. NAUT	10.00%	12,594,211	view →
2023-10-17	SC	Cerevel Therapeutics Holdings, Inc.	—	—	view →
2023-06-06	SC	SOLENO THERAPEUTICS INC SLNO	—	—	view →
2023-05-30	SC	SOLENO THERAPEUTICS INC SLNO	—	—	view →
2023-05-25	SC	SOLENO THERAPEUTICS INC SLNO	—	—	view →
2023-04-25	SC	Cerevel Therapeutics Holdings, Inc.	—	—	view →
2022-12-06	SC	Solid Biosciences Inc. SLDB	—	—	view →
2022-07-01	SC	Athira Pharma, Inc. LONA	—	—	view →

Showing 20 of 33

Want this depth on every filing the moment it hits SEC EDGAR?

Full feed access · API · daily intelligence brief · custom alerts. From $49/mo.

See pricing →