Biodesix Inc (BDSX) Institutional Ownership

Ownership Summary

The institutional landscape for Biodesix Inc (NASDAQ:BDSX) includes 26 filers as of the latest reporting cycle ending September 2025.

• These investors collectively held 19.6% of the company's total shares outstanding in September 2025, down from 23.6% in June 2025.
• In percentage terms, this reflects as a holdings change of 400.62% quarter on quarter, and a decrease of 49.02% year over year.
• A review of institutional activity for Biodesix shows 25 of 26 filers increasing their positions, while 1 reduced their stake, and 0 remained unchanged.
• The total number of shares held by institutions in Biodesix increased to 1.44Mn as of September 2025, a net change of up by 1.15Mn shares quarter on quarter, and down 1.67Mn shares year over year.
• Telemark Asset Management, LLC's holding of 414.12K shares as of September 30, 2025 makes it the primary institutional investor in Biodesix, owning 5.65% of the stock.
• Among the most significant buyers of Biodesix during September 2025 were Telemark Asset Management, LLC (414.12K), VANGUARD GROUP INC (181.90K), PERCEPTIVE ADVISORS LLC (108.69K), Monashee Investment Management LLC (100.00K), PERKINS CAPITAL MANAGEMENT INC (52.63K).
• Leading sellers of Biodesix stock in September 2025 included Birchview Capital, LP (2).
• The top 10 institutional holders of Biodesix for the quarter ending September 2025 included Telemark Asset Management, LLC (414.12K), Birchview Capital, LP (286.80K), VANGUARD GROUP INC (181.90K), PERCEPTIVE ADVISORS LLC (108.69K), Monashee Investment Management LLC (100.00K), PERKINS CAPITAL MANAGEMENT INC (52.63K), SILVERARC CAPITAL MANAGEMENT, LLC (49.61K), GSA CAPITAL PARTNERS LLP (48.34K), BALYASNY ASSET MANAGEMENT L.P. (43.02K), GEODE CAPITAL MANAGEMENT, LLC (40.22K).