Biodesix
BDSX
40 hedge funds and large institutions have $56.6M invested in Biodesix in 2026 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 6 increasing their positions, 2 reducing their positions, and 9 closing their positions.
411% more capital invested
Capital invested by funds: $11.1M → $56.6M (+$45.5M)
200% more repeat investments, than reductions
Existing positions increased: 6 | Existing positions reduced: 2
167% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 9
54% more funds holding
Funds holding: 26 → 40 (+14)
19.1% more ownership
Funds ownership: 20.48% → 39.58% (+19%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ACM
AIGH Capital Management
Baltimore,
Maryland
|
+$9.4M |
| 2 |
SCM
Soleus Capital Management
Greenwich,
Connecticut
|
+$5.16M |
| 3 |
OM
Opaleye Management
Boston,
Massachusetts
|
+$2.95M |
| 4 |
Aberdeen Group
Edinburgh,
United Kingdom
|
+$2.43M |
| 5 |
TAM
Telemark Asset Management
Boston,
Massachusetts
|
+$2.01M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MIM
Monashee Investment Management
Boston,
Massachusetts
|
-$764K |
| 2 |
PA
Perceptive Advisors
New York
|
-$739K |
| 3 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$311K |
| 4 |
Balyasny Asset Management
Chicago,
Illinois
|
-$225K |
| 5 |
Citadel Advisors
Miami,
Florida
|
-$177K |
BDSX Hedge Fund Activity: Q1 2026 in Review
40 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in Biodesix (BDSX) for Q1 2026, worth a combined $56.6M — up 411% from $11.1M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new BDSX positions and 9 closed out — a net gain of 15 holders — while 6 added to existing stakes and 2 trimmed.
The largest buyer was AIGH Capital Management, opening a new position worth an estimated $9.4M. The largest seller was Monashee Investment Management, exiting entirely with an estimated $764K sold.
- 40 institutional investors held Biodesix (BDSX) as of Q1 2026, up from 26 in Q4 2025.
- Funds reported $56.6M of Biodesix stock for Q1 2026, up 411% quarter-over-quarter.
- 24 funds opened new Biodesix positions in Q1 2026 and 9 closed out, a net change of +15 holders.
- The largest Biodesix buyer in Q1 2026 was AIGH Capital Management, an estimated $9.4M added.
- The largest Biodesix seller in Q1 2026 was Monashee Investment Management, an estimated $764K sold.
Based on aggregated 13F filings for Q1 2026.