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ISSUER PROFILE · CIK 0001377121

Protagonist Therapeutics, IncPTGX

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

Cross-Reference Snapshot

Activist filings
1
1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
7.64
as of 2026-03-31

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
2 holders · $8.75M
Duquesne Family OfficeSoros Fund Management

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2018-01-04 SC ADAGE CAPITAL PARTNERS GP, L.L.C. view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-03-31 8,626,880 7.64 +7.0%
2026-03-13 8,060,991 10.88 -1.6%
2026-02-27 8,192,998 16.48 -3.0%
2026-02-13 8,443,732 13.31 +3.8%
2026-01-30 8,132,629 10.56 -2.0%
2026-01-15 8,297,775 8.75 +13.8%
2025-12-31 7,292,034 9.51 +11.5%
2025-12-15 6,539,025 6.01 +11.2%

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