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ISSUER PROFILE · CIK 0002090646 · CUSIP 09940T100

Boost Run Inc.BRUN

9 13D/G filings 6 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 7 activist filings on this issuer

Median 30d
0.0%
avg 0.0%
Median 60d
0.0%
avg 0.0%
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
9
1 SCHEDULE 13D/A · 7 SCHEDULE 13D · 1 SCHEDULE 13G
Distinct filers
6
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
2.49
as of 2026-08-14

13D/G Filings Timeline · 9 total

FiledFormFilerStakeSharesIntent
2026-08-28 SCHEDULE 13D/A Goodrich Sean 10.28% 5,136,121 view →
2026-06-15 SCHEDULE 13D Weil B. Luke 12.25% 3,906,023 view →
2026-06-15 SCHEDULE 13D Goodrich Sean 12.65% 4,034,135 view →
2026-05-21 SCHEDULE 13G CITADEL ADVISORS LLC view →
2026-05-18 SCHEDULE 13D Goodrich ILMJS LLC 6.48% 2,065,385 view →
2026-05-15 SCHEDULE 13D Weil B. Luke 9.97% 3,288,511 view →
2026-05-15 SCHEDULE 13D Georgakopoulos Harilaos 25.13% 8,016,095 view →
2026-05-15 SCHEDULE 13D Karos Andrew 48.08% 29,533,018 view →
2026-05-15 SCHEDULE 13D Goodrich Sean 6.48% 2,065,385 view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-08-14 5,431,224 2.49 +18.1%
2026-07-31 4,598,132 2.37 +43.8%
2026-07-15 3,198,116 2.12 -4.5%
2026-06-30 3,348,998 2.11 +6.3%
2026-06-15 3,150,957 1.37 +11.1%
2026-05-29 2,835,957 1.52 -17.8%
2026-05-15 3,451,559 3.05 +100.0%

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