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ISSUER PROFILE · CIK 0001401667 · CUSIP 74587V107

Puma Biotechnology, Inc.PBYI

3 13D/G filings 1 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
3
1 SCHEDULE 13D/A · 2 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
14.02
as of 2026-09-30

13D/G Filings Timeline · 3 total

FiledFormFilerStakeSharesIntent
2026-10-06 SCHEDULE 13D/A AUERBACH ALAN H 16.00% 8,648,958 view →
2022-03-15 SC AUERBACH ALAN H — — view →
2019-02-14 SC AUERBACH ALAN H — — view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-09-30 4,264,923 14.02 -1.3%
2026-09-15 4,319,663 13.80 +1.1%
2026-08-31 4,274,524 15.62 +2.6%
2026-08-14 4,167,830 11.39 +1.0%
2026-07-31 4,126,395 13.89 +5.5%
2026-07-15 3,909,380 10.65 +7.7%
2026-06-30 3,628,478 8.47 -1.9%
2026-06-15 3,698,796 18.41 -2.8%
2026-05-29 3,803,328 19.73 -9.3%
2026-05-15 4,194,225 11.79 +2.2%
2026-04-30 4,105,615 18.59 -1.2%
2026-04-15 4,156,497 12.60 +5.6%

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