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ISSUER PROFILE · CIK 0000868278

ProPhase Labs, Inc.PRPH

8 13D/G filings 2 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
8
1 SCHEDULE 13G · 7 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
1.00
as of 2026-09-30

13D/G Filings Timeline · 8 total

FiledFormFilerStakeSharesIntent
2026-10-19 SCHEDULE 13G Venkatesan Shyam — — view →
2023-04-05 SC Karkus Ted William — — view →
2023-04-04 SC Karkus Ted William — — view →
2023-01-17 SC Karkus Ted William — — view →
2021-05-10 SC Karkus Ted William — — view →
2020-08-17 SC Karkus Ted William — — view →
2020-03-30 SC Karkus Ted William — — view →
2018-02-26 SC Karkus Ted William — — view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-09-30 78,348 1.00 +43.7%
2026-09-15 54,515 1.00 +9.6%
2026-08-31 49,754 1.00 -20.5%
2026-08-14 62,597 1.00 +25.7%
2026-07-31 49,799 1.00 +0.0%
2026-07-15 49,794 1.00 +1.1%
2026-06-30 49,257 1.00 +1.1%
2026-06-15 48,699 1.00 -13.8%
2026-05-29 56,514 1.60 -16.4%
2026-05-15 67,595 1.00 +6.4%
2026-04-30 63,551 1.00 +44.0%
2026-04-15 44,129 1.00 -0.4%

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