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ISSUER PROFILE · CIK 0001094038 · CUSIP 57055L206

Marker Therapeutics, Inc.MRKR

6 13D/G filings 3 distinct filers 0 insider transactions (365d)

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

Median 30d
avg —
Median 60d
avg —
Median 90d
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Median 180d
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Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
6
1 SCHEDULE · 5 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
3.07
as of 2026-05-29

13D/G Filings Timeline · 6 total

FiledFormFilerStakeSharesIntent
2025-08-18 SCHEDULE New Enterprise Associates 16, L.P. 12.60% 1,625,678 view →
2021-03-26 SC New Enterprise Associates 16, L.P. view →
2021-03-24 SC Leen Ann M. view →
2020-11-13 SC Eastern Capital LTD view →
2020-02-20 SC Eastern Capital LTD view →
2018-05-16 SC Eastern Capital LTD view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 204,416 3.07 -16.6%
2026-05-15 244,966 3.78 +62.7%
2026-04-30 150,562 1.90 -21.0%
2026-04-15 190,658 1.00 -62.8%
2026-03-31 512,684 4.48 -14.3%
2026-03-13 598,274 4.65 -8.3%
2026-02-27 652,144 5.79 +11.1%
2026-02-13 586,941 2.28 +129.5%
2026-01-30 255,701 1.00 -17.4%
2026-01-15 309,450 1.00 -5.2%
2025-12-31 326,551 1.29 -2.6%
2025-12-15 335,196 1.08 +43.5%

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