Nautilus Biotechnology NAUT Institutional Ownership

Ownership Summary

Nautilus Biotechnology, Inc. (NASDAQ:NAUT) appears in 80 institutional 13F filings for the quarter ending March 2026.

• These investors collectively held 42.9% of Nautilus Biotechnology's outstanding shares in March 2026, down from 46.5% in December 2025.
• They increased total shares held in Nautilus Biotechnology by 12.0% from last quarter, and the number of investors in NAUT decreased 9.09% annually.
• Of these 80 holders, 39 added to their stakes in Nautilus Biotechnology, 18 trimmed positions, and 23 made no changes.
• Combined, these investors held 54.33Mn shares in NAUT for March 2026, up by 5.82Mn shares quarter on quarter, and down 22.38Mn shares year over year.
• As of March 31, 2026, a16z Capital Management, L.L.C. held the largest stake in Nautilus Biotechnology with 17.65Mn shares, accounting for 13.94% of total shares outstanding.
• Leading buyers of Nautilus Biotechnology shares for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (2.55Mn), Clearstead Advisors, LLC (2.33Mn), VANGUARD FIDUCIARY TRUST CO (305.53K), MILLENNIUM MANAGEMENT LLC (253.39K), MARSHALL WACE, LLP (202.82K).
• Top sellers of NAUT stock for the quarter ending March 2026 included Goldman Sachs Group Inc (204.11K), JANE STREET GROUP, LLC (145.04K), Corient Private Wealth LLC (114.79K), OMERS ADMINISTRATION Corp (80.28K), GSA CAPITAL PARTNERS LLP (69.35K).
• According to Business Quant data, leading holders of NAUT for March 2026 are a16z Capital Management, L.L.C. (17.65Mn), PERCEPTIVE ADVISORS LLC (12.59Mn), Cercano Management LLC (7.17Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.55Mn), Clearstead Advisors, LLC (2.33Mn), Comprehensive Financial Management LLC (2.21Mn), Amazon Com Inc (1.46Mn), MILLENNIUM MANAGEMENT LLC (1.27Mn), SENTINEL TRUST CO LBA (750.0K), ACADIAN ASSET MANAGEMENT LLC (741.25K).