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ISSUER PROFILE · CIK 0000944809 · CUSIP 68375N103

OPKO HEALTH, INC.OPK

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

Post-Filing Returns · across 3 activist filings on this issuer

Median 30d
0.0%
avg -2.7%
Median 60d
0.0%
avg 0.0%
Median 90d
0.0%
avg 0.0%
Median 180d
0.0%
avg 0.0%

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

Cross-Reference Snapshot

Activist filings
8
1 SCHEDULE 13D/A · 2 SCHEDULE · 5 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
12.96
as of 2026-07-15

13D/G Filings Timeline · 8 total

FiledFormFilerStakeSharesIntent
2026-07-01 SCHEDULE 13D/A FROST PHILLIP MD ET AL 34.10% 255,429,406 view →
2025-10-01 SCHEDULE FROST PHILLIP MD ET AL 32.80% 252,884,406 view →
2025-04-03 SCHEDULE HSIAO JANE PH D 4.50% 35,677,284 view →
2024-01-22 SC FROST PHILLIP MD ET AL view →
2023-02-21 SC FROST PHILLIP MD ET AL view →
2020-03-20 SC HSIAO JANE PH D view →
2019-03-22 SC FROST PHILLIP MD ET AL view →
2019-03-20 SC FROST PHILLIP MD ET AL view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-07-15 33,644,789 12.96 +3.2%
2026-06-30 32,594,765 8.93 -0.6%
2026-06-15 32,789,842 11.84 -0.8%
2026-05-29 33,037,706 10.91 +1.2%
2026-05-15 32,656,834 16.54 -3.3%
2026-04-30 33,763,628 12.69 +2.4%
2026-04-15 32,978,308 17.69 -1.9%
2026-03-31 33,615,361 10.91 +2.6%
2026-03-13 32,776,490 14.38 +4.5%
2026-02-27 31,374,396 17.73 -1.0%
2026-02-13 31,677,429 10.95 +2.6%
2026-01-30 30,881,465 8.38 +1.2%

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