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BRUN

Boost Run Inc
BRUN

69 hedge funds and large institutions have $397M invested in Boost Run Inc in 2026 Q2 according to their latest regulatory filings, with 69 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

32.16% more ownership

Funds ownership: 0% → 32.16% (+32%)

19% less call options, than puts

Call options by funds: $55.5M | Put options by funds: $68.9M

Holders
69
Holders Change
+69
Holders Change %
–
% of All Funds
0.85%
Holding in Top 10
4
Holding in Top 10 Change
+4
Holding in Top 10 Change %
% of All Funds
0.05%
New
69
Increased
–
Reduced
–
Closed
–
Calls
$55.5M
Puts
$68.9M
Net Calls
-$13.3M
Net Calls Change
-$13.3M

Top Buyers

Rank Fund Capital Flow
1
Citadel Advisors
Citadel Advisors
Florida
+$40.9M
2
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$38.8M
3
UBS Group
UBS Group
Switzerland
+$26.7M
4
AIC
AWM Investment Company
New York
+$25.2M
5
CFM
Capricorn Fund Managers
United Kingdom
+$23.3M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
Group One Trading
26
Group One Trading
Illinois
$2.07M +$1.66M +53,418 New
LPL Financial
27
LPL Financial
California
$2.04M +$1.63M +52,540 New
M
28
Murchinson
Ontario, Canada
$2.02M +$1.61M +52,000 New
XT
29
XTX Topco
Cayman Islands
$2.02M +$1.61M +51,993 New
BCM
30
BlueCrest Capital Management
Jersey
$1.94M +$1.55M +50,000 New
MCM
31
Moore Capital Management
New York
$1.94M +$1.55M +50,000 New
KAS
32
Kestra Advisory Services
Texas
$1.42M +$1.14M +36,625 New
IMC Chicago
33
IMC Chicago
Illinois
$1.39M +$1.11M +35,814 New
Northern Trust
34
Northern Trust
Illinois
$1.15M +$922K +29,733 New
GDCM
35
Galaxy Digital Capital Management
New York
$1.09M +$875K +28,209 New
CWM
36
Cedar Wealth Management
California
$1.04M +$833K +26,878 New
FPAM
37
Feynman Point Asset Management
New York
$1.04M +$828K +26,700 New
F1I
38
Fund 1 Investments
Puerto Rico
$1.01M +$803K +25,898 New
Goldman Sachs
39
Goldman Sachs
New York
$928K +$741K +23,915 New
Simplex Trading
40
Simplex Trading
Illinois
$589K +$471K +15,183 New
PC
41
Panoramic Capital
California
$582K +$465K +15,000 New
CCS
42
Concentric Capital Strategies
Connecticut
$570K +$455K +14,686 New
Royal Bank of Canada
43
Royal Bank of Canada
Ontario, Canada
$510K +$408K +13,150 New
KAM
44
Kazazian Asset Management
Florida
$506K +$404K +13,044 New
WG
45
Winton Group
United Kingdom
$411K +$329K +10,600 New
OC
46
Oppenheimer & Co
New York
$330K +$264K +8,500 New
CRC
47
Curi RMB Capital
Illinois
$297K +$237K +7,650 New
PCM
48
Prelude Capital Management
New York
$263K +$210K +6,764 New
MP
49
Mangrove Partners
Connecticut
$237K +$189K +6,102 New
HCA
50
Harbour Capital Advisors
Virginia
$222K +$242K +7,800 New
1
2
3

BRUN Hedge Fund Activity: Q2 2026 in Review

69 of the 8,153 institutional investors tracked by Wall St. Rank reported a position in Boost Run Inc (BRUN) for Q2 2026, worth a combined $397M.

Buyers outnumbered sellers: 69 funds opened new BRUN positions and 0 closed out — a net gain of 69 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Citadel Advisors, opening a new position worth an estimated $40.9M.

  • 69 institutional investors held Boost Run Inc (BRUN) as of Q2 2026, up from 0 in Q1 2026.
  • Funds reported $397M of Boost Run Inc stock for Q2 2026.
  • 69 funds opened new Boost Run Inc positions in Q2 2026 and 0 closed out, a net change of +69 holders.
  • The largest Boost Run Inc buyer in Q2 2026 was Citadel Advisors, an estimated $40.9M added.

Based on aggregated 13F filings for Q2 2026.