Biodesix Inc (BDSX) Institutional Ownership

Ownership Summary

Recent 13F filings as of December 2025 show that 26 institutional investors hold a position in Biodesix Inc (NASDAQ:BDSX).

• The collective stake of institutional investors in Biodesix moved to 21.7% in December 2025, a shift up from the 19.1% reported for September 2025.
• The company experienced a 21.99% quarterly change in institutional shares held, alongside a decrease of 55.93% in total owners annually.
• Of these 26 institutional investors, 14 increased their holdings in Biodesix, while 5 of them reduced positions, and 7 investors maintained their exposure.
• This class of investors increased its holdings in Biodesix to 1.63Mn shares for the 13F-cycle ending December 2025, up by 293.63K shares quarter on quarter, and down 1.31Mn shares year over year.
• The top institutional stake in Biodesix as of December 31, 2025 belongs to Telemark Asset Management, LLC, which owns 327.82K shares, or 4.36% of the company.
• Among the most significant buyers of Biodesix during December 2025 were Aberdeen Group plc (262.43K), Trexquant Investment LP (27.54K), CITADEL ADVISORS LLC (25.98K), GSA CAPITAL PARTNERS LLP (16.14K), DRW Securities, LLC (15.37K).
• Leading sellers of Biodesix stock in December 2025 included Telemark Asset Management, LLC (86.30K), BALYASNY ASSET MANAGEMENT L.P. (10.01K), PERKINS CAPITAL MANAGEMENT INC (7.85K), Tower Research Capital LLC (TRC) (451), MORGAN STANLEY (15).
• The top 10 institutional holders of Biodesix for the quarter ending December 2025 included Telemark Asset Management, LLC (327.82K), Birchview Capital, LP (286.80K), Aberdeen Group plc (262.43K), VANGUARD GROUP INC (192.14K), Monashee Investment Management LLC (112.34K), PERCEPTIVE ADVISORS LLC (108.69K), GSA CAPITAL PARTNERS LLP (64.48K), PERKINS CAPITAL MANAGEMENT INC (44.78K), GEODE CAPITAL MANAGEMENT, LLC (42.45K), BALYASNY ASSET MANAGEMENT L.P. (33.02K).