AH Bio Fund II, L.P.

4 filings 1 distinct issuers Active 2026-06-04 → 2026-09-11

Track Record

Total filings

4 SCHEDULE 13D/A

Distinct issuers

25% issuer diversity

Median stake

6.93%

8,231,469 avg shares

AI briefs cached

0/4

intent-classified filings

Backtested Performance · post-filing returns (split + dividend adjusted)

Median 30d

-0.9%

across 2 filings · win rate 0%

Median 60d

—

across 0 filings · win rate —

Median 90d

—

across 0 filings · win rate —

Median 1y

—

across 0 filings · win rate —

Anchor: closest trading day on/after filing's date_of_event. Source: Yahoo Finance daily adj_close. Past performance is not indicative of future results.

Filings · 4 total

Filed	Form	Issuer	Stake	Shares
2026-09-11	SCHEDULE 13D/A	Nautilus Biotechnology, Inc.NAUT	4.90%	5,782,188	view →
2026-08-28	SCHEDULE 13D/A	Nautilus Biotechnology, Inc.NAUT	6.00%	7,094,691	view →
2026-06-30	SCHEDULE 13D/A	Nautilus Biotechnology, Inc.NAUT	—	8,366,966	view →
2026-06-04	SCHEDULE 13D/A	Nautilus Biotechnology, Inc.NAUT	9.90%	11,682,032	view →

Alert me when AH Bio Fund II, L.P. files anything

Free. We email you when criteria match. One-click unsubscribe in every email.

Track this filer's every move in real time.

Free $0 (48h-delayed alerts) · Individual $49/mo (real-time) · Team & API $199/mo · Enterprise.

See pricing →