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ISSUER PROFILE · CIK 0001739174 · CUSIP 09090D608

Tessera Defense and Homeland Security Inc.HLSQ

10 13D/G filings 4 distinct filers 0 insider transactions (365d)
1 UNCLEAR

Post-Filing Returns · across 4 activist filings on this issuer

Median 30d
-20.6%
avg -32.7%
Median 60d
-34.6%
avg -45.3%
Median 90d
-58.4%
avg -58.4%
Median 180d
-17.9%
avg -17.9%

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

Cross-Reference Snapshot

Activist filings
10
4 SCHEDULE 13D/A · 2 SCHEDULE 13D · 1 SCHEDULE · 3 SC
Distinct filers
4
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-09-30

13D/G Filings Timeline · 10 total

FiledFormFilerStakeSharesIntent
2026-10-06 SCHEDULE 13D/A Mayers Ventures LLC — 195,000 view →
2026-09-17 SCHEDULE 13D Mayers Ventures LLC 4.86% 130,000 view →
2026-09-15 SCHEDULE 13D/A T3 Defense Inc. — 156,796 view →
2026-06-16 SCHEDULE 13D/A Flynn James E 4.70% 266,424 view →
2026-05-28 SCHEDULE 13D/A Flynn James E 8.09% 444,703 view →
2026-04-10 SCHEDULE 13D T3 Defense Inc. 19.87% 1,300,000 UNCLEAR view →
2025-03-03 SCHEDULE Flynn James E 9.99% 15,558,445 view →
2024-07-11 SC Flynn James E — — view →
2024-05-30 SC Flynn James E — — view →
2023-03-17 SC OrbiMed Israel BioFund GP Limited Partnership — — view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-09-30 130,329 1.00 +74.9%
2026-09-15 74,521 1.00 -88.0%

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