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BOLD

Boundless Bio
BOLD

36 hedge funds and large institutions have $9.33M invested in Boundless Bio in 2026 Q1 according to their latest regulatory filings, with 7 funds opening new positions, 6 increasing their positions, 10 reducing their positions, and 6 closing their positions.

New
Increased
Maintained
Reduced
Closed

17% more first-time investments, than exits

New positions opened: 7 | Existing positions closed: 6

0% more funds holding

Funds holding: 36 → 36 (0)

1.35% less ownership

Funds ownership: 39.23% → 37.87% (-1.4%)

11% less capital invested

Capital invested by funds: $10.5M → $9.33M (-$1.2M)

40% less repeat investments, than reductions

Existing positions increased: 6 | Existing positions reduced: 10

Holders
36
Holders Change
–
Holders Change %
0%
% of All Funds
0.44%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
6
Reduced
10
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Renaissance Technologies
Renaissance Technologies
New York
+$67.4K
2
GCP
GSA Capital Partners
United Kingdom
+$40.2K
3
Geode Capital Management
Geode Capital Management
Massachusetts
+$39.2K
4
Squarepoint
Squarepoint
New York
+$19.1K
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$13.4K

Top Sellers

Rank Fund Capital Flow
1
Northern Trust
Northern Trust
Illinois
-$227K
2
SCM
Stonepine Capital Management
Oregon
-$131K
3
LCM
Landscape Capital Management
New Jersey
-$48.9K
4
Millennium Management
Millennium Management
New York
-$41.6K
5
Citigroup
Citigroup
New York
-$19K
Name Holding Trade Value Shares
Change 		Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$2.96M +$13.4K +11,433 +0.4%
Citadel Advisors
2
Citadel Advisors
Florida
$1.48M -$13.8K -11,773 -0.9%
SAM
3
Sectoral Asset Management
Quebec, Canada
$746K – – –
SCM
4
Stonepine Capital Management
Oregon
$657K -$131K -112,389 -16%
VCM
5
Vanguard Capital Management
Pennsylvania
$657K +$698K +597,192 New
Wellington Management Group
6
Wellington Management Group
Massachusetts
$612K – – –
Renaissance Technologies
7
Renaissance Technologies
New York
$439K +$67.4K +57,600 +17%
Alyeska Investment Group
8
Alyeska Investment Group
Illinois
$330K – – –
RC
9
RBF Capital
California
$220K – – –
Ensign Peak Advisors
10
Ensign Peak Advisors
Utah
$206K – – –
SCM
11
Sio Capital Management
New York
$180K – – –
Geode Capital Management
12
Geode Capital Management
Massachusetts
$140K +$39.2K +33,478 +36%
Millennium Management
13
Millennium Management
New York
$110K -$41.6K -35,535 -26%
GCP
14
GSA Capital Partners
United Kingdom
$107K +$40.2K +34,348 +55%
LCM
15
Landscape Capital Management
New Jersey
$94.4K -$48.9K -41,834 -33%
BlackRock
16
BlackRock
New York
$77.7K +$4.24K +3,627 +5%
VFT
17
Vanguard Fiduciary Trust
Pennsylvania
$71.7K +$76.2K +65,136 New
BCM
18
Bridgeway Capital Management
Texas
$55.5K – – –
Walleye Capital
19
Walleye Capital
New York
$43.6K – – –
XT
20
XTX Topco
Cayman Islands
$38.1K -$5.74K -4,906 -12%
Qube Research & Technologies (QRT)
21
Qube Research & Technologies (QRT)
United Kingdom
$19.2K -$1.42K -1,215 -6%
Squarepoint
22
Squarepoint
New York
$18K +$19.1K +16,374 New
State Street
23
State Street
Massachusetts
$17.6K – – –
Morgan Stanley
24
Morgan Stanley
New York
$14.3K – – –
Acadian Asset Management
25
Acadian Asset Management
Massachusetts
$12K – – –
1
2

BOLD Hedge Fund Activity: Q1 2026 in Review

36 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Boundless Bio (BOLD) for Q1 2026, worth a combined $9.33M — down 11% from $10.5M a quarter earlier.

Buyers outnumbered sellers: 7 funds opened new BOLD positions and 6 closed out — a net gain of 1 holder — while 6 added to existing stakes and 10 trimmed.

The largest buyer was Renaissance Technologies, adding an estimated $67.4K. The largest seller was Northern Trust, exiting entirely with an estimated $227K sold.

  • 36 institutional investors held Boundless Bio (BOLD) as of Q1 2026, unchanged from Q4 2025.
  • Funds reported $9.33M of Boundless Bio stock for Q1 2026, down 11% quarter-over-quarter.
  • 7 funds opened new Boundless Bio positions in Q1 2026 and 6 closed out, a net change of +1 holder.
  • The largest Boundless Bio buyer in Q1 2026 was Renaissance Technologies, an estimated $67.4K added.
  • The largest Boundless Bio seller in Q1 2026 was Northern Trust, an estimated $227K sold.

Based on aggregated 13F filings for Q1 2026.