DOSSIER · 13F Holders · Q2 2026
BRUN

BOOST RUN INC

76 institutions still hold BOOST RUN INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 09940T100·76 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$592M
visible holders
Holders
76
filers reporting
Concentration
20.48%
TOMS Capital Investment Management LP #1
top holder share
AI Holders Summary · Q2 2026

76 institutions reported BRUN in Q2 2026. TOMS Capital Investment Management LP leads at 20.5% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
TOMS Capital Investment Management LP
CIK 0001743937
$121M3.1M2.59%Q2 2026
02
CITADEL ADVISORS LLC
CIK 0001423053
$73M1.9M0.01%Q2 2026
03
FMR LLC
CIK 0000315066
$69M1.8M0.00%Q2 2026
04
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$51M1.3M0.00%Q2 2026
05
UBS Group AG
CIK 0001610520
$35M908K0.00%Q2 2026
06
AWM Investment Company, Inc.
CIK 0001535264
$32M814K2.74%Q2 2026
07
Hiddenite Capital Partners LP
CIK 0001823823
$29M750K2.50%Q2 2026
08
Capricorn Fund Managers Ltd
CIK 0001901361
$29M750K2.29%Q2 2026
09
SCOGGIN MANAGEMENT LP
CIK 0001086416
$27M693K2.88%Q2 2026
10
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$24M619K0.00%Q2 2026
11
Yorkville Advisors Global, LP
CIK 0001838613
$23M582K26.21%Q2 2026
12
MORGAN STANLEY
CIK 0000895421
$19M491K0.00%Q2 2026
13
Harraden Circle Investments, LLC
CIK 0001910592
$18M466K2.31%Q2 2026
14
BlackRock, Inc.
CIK 0002012383
$11M274K0.00%Q2 2026
15
LINDEN ADVISORS LP
CIK 0001279396
$7M192K0.03%Q2 2026
16
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$6M157K0.00%Q2 2026
17
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$6M150K0.00%Q2 2026
18
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$4M110K0.00%Q2 2026
19
PERISCOPE CAPITAL INC.
CIK 0001695320
$4M128K0.37%Q2 2026
20
NEXT CENTURY GROWTH INVESTORS LLC
CIK 0001134007
$4M106K0.22%Q2 2026
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Insiders at BOOST RUN INC
Goodrich SeanWeil B. Luke