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Biodesix

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.

New
Increased
Maintained
Reduced
Closed

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: 2640 (+14)

19.1% more ownership

Funds ownership: 20.48%39.58% (+19%)

Holders
40
Holders Change
+14
Holders Change %
+53.85%
% of All Funds
0.49%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
24
Increased
6
Reduced
2
Closed
9
Calls
$215K
Puts
Net Calls
+$215K
Net Calls Change
+$130K
Name Holding Trade Value Shares
Change
Change in
Stake
ACM
1
AIGH Capital Management
Maryland
$11M +$9.4M +758,328 New
TAM
2
Telemark Asset Management
Massachusetts
$7.1M +$2.01M +162,000 +49%
Aberdeen Group
3
Aberdeen Group
United Kingdom
$6.65M +$2.43M +196,013 +75%
SCM
4
Soleus Capital Management
Connecticut
$6.04M +$5.16M +416,599 New
BC
5
Birchview Capital
Vermont
$4.16M
VCM
6
Vanguard Capital Management
Pennsylvania
$3.7M +$3.16M +255,161 New
OM
7
Opaleye Management
Massachusetts
$3.45M +$2.95M +238,047 New
Marshall Wace
8
Marshall Wace
United Kingdom
$2.05M +$1.76M +141,636 New
EIM
9
Essex Investment Management
Massachusetts
$1.92M +$1.64M +132,086 New
SC
10
Stempoint Capital
New York
$1.02M +$868K +70,004 New
TI
11
Trexquant Investment
Connecticut
$1.01M +$521K +42,059 +153%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$726K +$93.5K +7,545 +18%
Two Sigma Investments
13
Two Sigma Investments
New York
$656K +$561K +45,231 New
PCM
14
Perkins Capital Management
Minnesota
$649K
SEI Investments
15
SEI Investments
Pennsylvania
$624K +$533K +43,024 New
LCM
16
Legato Capital Management
California
$597K +$510K +41,174 New
GCP
17
GSA Capital Partners
United Kingdom
$571K -$311K -25,077 -39%
UBS Group
18
UBS Group
Switzerland
$534K +$456K +36,808 New
Morgan Stanley
19
Morgan Stanley
New York
$470K +$401K +32,331 +53,002%
VFT
20
Vanguard Fiduciary Trust
Pennsylvania
$416K +$355K +28,660 New
William Blair & Company
21
William Blair & Company
Illinois
$400K +$342K +27,583 New
Jane Street
22
Jane Street
New York
$392K +$335K +27,031 New
BlackRock
23
BlackRock
New York
$355K
Millennium Management
24
Millennium Management
New York
$348K +$298K +24,006 New
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$335K +$286K +23,090 New

BDSX Hedge Fund Activity: Q1 2026 in Review

40 of the 8,126 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.