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ISSUER PROFILE · CIK 0000921114 · CUSIP 04216R102

Armata Pharmaceuticals, Inc.ARMP

10 13D/G filings 2 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 1 activist filings on this issuer

Median 30d
+59.0%
avg +59.0%
Median 60d
+36.8%
avg +36.8%
Median 90d
+125.5%
avg +125.5%
Median 180d
avg —

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

Cross-Reference Snapshot

Activist filings
10
1 SCHEDULE 13D/A · 1 SCHEDULE · 8 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
2.48
as of 2026-05-29

13D/G Filings Timeline · 10 total

FiledFormFilerStakeSharesIntent
2026-05-13 SCHEDULE 13D/A Innoviva, Inc. 55,467,459 view →
2026-01-26 SCHEDULE Innoviva, Inc. 83.10% 55,467,459 view →
2023-07-11 SC Innoviva, Inc. view →
2022-04-01 SC Innoviva, Inc. view →
2022-02-11 SC Innoviva, Inc. view →
2021-04-05 SC Innoviva, Inc. view →
2021-03-17 SC Innoviva, Inc. view →
2021-01-27 SC Innoviva, Inc. view →
2020-03-31 SC Innoviva, Inc. view →
2018-01-05 SC SABBY MANAGEMENT, LLC view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 209,363 2.48 -7.0%
2026-05-15 225,033 2.91 -2.2%
2026-04-30 230,017 2.89 -5.8%
2026-04-15 244,306 4.44 -18.0%
2026-03-31 297,898 9.66 -4.2%
2026-03-13 310,810 9.37 +4.3%
2026-02-27 298,102 4.46 -0.1%
2026-02-13 298,337 6.65 +8.5%
2026-01-30 274,891 6.63 +23.8%
2026-01-15 222,054 2.94 +53.8%
2025-12-31 144,352 5.29 +7.7%
2025-12-15 133,987 2.28 +2.1%

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