OPK · Opko Health, Inc. · Shareholders & Ownership
$1.66
+0.05 (+3.11%)
At close · Oct 20
Return incl. dividend (before tax)
Market Cap
$1.20B
Shares
746.33M
Volume · Oct 20
4.35M
Avg daily vol (3M)
4.23M
Every disclosed holder of OPK in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns OPK
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 202,367,293 | 27.12% |
| Insiders (Forms 3, 4, 5) | 41,893,822 | 5.61% |
| 13D/G-only blocks | 35,677,284 | 4.78% |
| Remaining | 466,389,826 | 62.49% |
| Registered funds (N-PORT, not summed) | 74,580,991 | 9.99% |
Shares outstanding: 746,328,225, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of OPK
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Phillip Frost, M.D.
13D
CIK 898860 · Unknown · Jun 29, 2026
Item 4 purpose: not restated by this amendment, the earlier 13D's purpose stands
not summed
|
255,429,406 | ||
| 1.1 |
|
33,696,128 | ||
| 2 |
Rubric Capital Management LP
13F
CIK 1687509 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
47,791,243 | ||
| 3 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
36,978,893 | ||
| 3.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
10,477,272 | ||
| 3.2 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
3,827,935 | ||
| 3.3 |
iShares Biotechnology ETF
Fund
S000004350 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
2,661,460 | ||
| 3.4 |
iShares U.S. Healthcare Providers ETF
Fund
S000009418 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
787,048 | ||
| 3.5 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
778,475 | ||
| 4 |
HSIAO JANE PH D
13D
CIK 1188834 · Unknown · Apr 2, 2025
|
35,677,284 | ||
| 5 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,968,930 | ||
| 6 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,934,924 | ||
| 7 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,581,027 | ||
| 8 |
|
10,309,070 | ||
| 8.1 |
State Street(R) SPDR(R) S&P(R) Health Care Services ETF
Fund
S000012331 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
370,431 | ||
| 8.2 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
143,518 | ||
| 8.3 |
State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF
Fund
S000036082 · Registered fund · Jun 30, 2026
SPDR INDEX SHARES FUNDS, not summed
|
10,344 | ||
| 8.4 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
9,774 | ||
| 8.5 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
2,280 | ||
| 9 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
9,753,393 | ||
| 10 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,035,492 | ||
| 10.1 |
Goldman Sachs Small Cap Value Insights Fund
Fund
S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
2,015,781 | ||
| 10.2 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
729,579 | ||
| 10.3 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
327,900 | ||
| 10.4 |
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund
S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
|
171,120 | ||
| 10.5 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
|
99,121 | ||
| 11 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
6,919,876 | ||
| 12 |
|
6,571,966 | ||
| 13 |
|
5,006,284 | ||
| 14 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
4,914,746 | ||
| 15 |
Whitefort Capital Management, LP
13F
CIK 1884931 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,511,412 | ||
| 16 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,756,163 | ||
| 16.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
197,187 | ||
| 16.2 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
61,542 | ||
| 16.3 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
55,749 | ||
| 17 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,596,980 | ||
| 17.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
2,044,519 | ||
| 17.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
984,017 | ||
| 17.3 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
330,176 | ||
| 17.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
277,893 | ||
| 18 |
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F
CIK 919185 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,593,925 | ||
| 19 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,706,235 | ||
| 20 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,195,148 | ||
| 21 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
2,113,129 | ||
| 22 |
AWM Investment Company, Inc.
13F
CIK 1535264 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,110,000 | ||
| 23 |
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund
S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,985,904 | ||
| 24 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,975,027 | ||
| 24.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
253 | ||
| 25 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,420,922 | ||
| 26 |
WASHINGTON GROWTH STRATEGIES LLC
13F
CIK 2044575 · Unknown · Sep 30, 2026
|
1,356,124 | ||
| 27 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,329,974 | ||
| 28 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,267,741 | ||
| 28.1 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
303,828 | ||
| 28.2 |
Dimensional VA U.S. Targeted Value Portfolio
Fund
S000000953 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
8,801 | ||
| 29 |
VANGUARD HEALTH CARE INDEX FUND
Fund
S000004450 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
1,261,116 | ||
| 30 |
Y.D. More Investments Ltd
13F
CIK 1870364 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,257,568 | ||
| 31 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,239,399 | ||
| 31.1 |
AQR Small Cap Momentum Style Fund
Fund
S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
|
66,111 | ||
| 32 |
OP Asset Management Ltd
13F
CIK 2097005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,159,647 | ||
| 33 |
VOYA INVESTMENT MANAGEMENT LLC
13F
CIK 1068837 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,094,111 | ||
| 34 |
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
13F
CIK 1081019 · Pension or benefit plan · Jun 30, 2026
carried, not yet filed for the newest quarter
|
961,484 | ||
| 35 |
Clearstead Advisors, LLC
13F
CIK 842775 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
883,288 | ||
| 36 |
|
863,035 | ||
| 36.1 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
509,818 | ||
| 36.2 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
304,908 | ||
| 36.3 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
129,105 | ||
| 36.4 |
TIAA Separate Account VA-1 - Stock Index Account
Fund
S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
|
13,300 | ||
| 36.5 |
Nuveen Life Stock Index Fund
Fund
S000005094 · Registered fund · Jun 30, 2026
TIAA-CREF Life Funds, not summed
|
8,804 | ||
| 37 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
795,716 | ||
| 38 |
Swiss National Bank
13F
CIK 1582202 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
761,455 | ||
| 39 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
685,076 | ||
| 39.1 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
395,779 | ||
| 39.2 |
Invesco NASDAQ Future Gen 200 ETF
Fund
S000077288 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
64,034 | ||
| 40 |
|
658,817 | ||
| 41 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
623,561 | ||
| 42 |
PFG Investments, LLC
13F
CIK 1973224 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
610,491 | ||
| 43 |
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F
CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
574,107 | ||
| 44 |
|
563,396 | ||
| 45 |
Kovack Advisors, Inc.
13F
CIK 1728321 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
536,202 | ||
| 46 |
RHUMBLINE ADVISERS
13F
CIK 1115418 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
498,861 | ||
| 47 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
455,748 | ||
| 47.1 |
T. Rowe Price Total Equity Market Index Fund
Fund
S000002091 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
122,720 | ||
| 47.2 |
T. Rowe Price Small-Cap Index Fund
Fund
S000051327 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
62,816 | ||
| 48 |
EQ/2000 Managed Volatility Portfolio
Fund
S000025800 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
455,015 | ||
| 49 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
442,680 | ||
| 50 |
VAN ECK ASSOCIATES CORP
13F
CIK 869178 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
438,645 | ||
| 50.1 |
VanEck Israel ETF
Fund
S000041167 · Registered fund · Jun 30, 2026
VanEck ETF Trust, not summed
|
438,645 |
9 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 289 holders
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Key facts
CIK
944809
CUSIP
68375N103
13F (30d)
21 filings
21 filers
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