SEC Form 4 · accession 0001231919-26-000599
Nautilus Biotechnology, Inc. · NAUT
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
Marc L Andreessen
10% Owner
Benjamin A Horowitz
10% Owner
AH Bio Fund II, L.P.
10% Owner
AH Equity Partners Bio II, L.L.C.
10% Owner
AH Equity Partners LSV II, L.L.C.
10% Owner
Period of report
Jun 2, 2026
Accepted (ET)
Jun 4, 2026 · 4:53 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001808805
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2 | Jun 2, 2026 | S | 4,615,974 | $2.35 | D | 11,682,032 | I | By AH Bio Fund II, L.P. |
| Common StockF3,F4 | Jun 2, 2026 | S | 384,026 | $2.35 | D | 971,885 | I | By Andreessen Horowitz LSV Fund II, L.P. |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reported securities are held by AH Bio Fund II, L.P. ("AH Bio Fund II"), for itself and as nominee for AH Bio Fund II-B, L.P. AH Equity Partners Bio II, L.L.C. ("AH EP Bio II") is the general partner of AH Bio Fund II and has sole voting and dispositive power with regard to the securities held by AH Bio Fund II for itself and as nominee. The managing members of AH EP Bio II are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz may be deemed to share voting and dispositive power with respect to the securities held by AH Bio Fund II for itself and as nominee.
- F2Each of the Reporting Persons disclaims the existence of a "group" and disclaims beneficial ownership of the securities held by AH Bio Fund II for itself and as nominee (and this report shall not be deemed an admission that any such person is the beneficial owner of such securities), except to the extent of such person's pecuniary interest therein, if any.
- F3The reported securities are held by Andreessen Horowitz LSV Fund II, L.P. ("AH LSV Fund II"), for itself and as nominee for Andreessen Horowitz LSV Fund II-B, L.P. and Andreessen Horowitz LSV Fund II-Q, L.P. AH Equity Partners LSV II, L.L.C. ("AH EP LSV II") is the general partner of AH LSV Fund II and has sole voting and dispositive power with regard to the securities held by AH LSV Fund II for itself and as nominee. The managing members of AH EP LSV II are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz may be deemed to share voting and dispositive power with respect to the securities held by AH LSV Fund II for itself and as nominee.
- F4Each of the Reporting Persons disclaims the existence of a "group" and disclaims beneficial ownership of the securities held by AH LSV Fund II for itself and as nominee (and this report shall not be deemed an admission that any such person is the beneficial owner of such securities), except to the extent of such person's pecuniary interest therein, if any.