Opko Health OPK Institutional Ownership

NASDAQ OPK

$1.50 -0.01 (-0.99%)

As of: Aug 27, 2026 · 3:59 PM EDT

Institutions by Trading Activity

223 Institutions

Increased 98 43.9%

Unchanged 73 32.7%

Reduced 52 23.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

27.11%

▲+0.45 pp QoQ

Shares Held by Institutions

204.72Mn

of 755.27Mn outstanding

▲+3.94% QoQ

Shares Outstanding

755.27Mn

550.54Mn held outside 13F filers

Institutional Investors

223

filed 13F for Jun 2026

▼-10 vs prior quarter

Net Shares Added (QoQ)

+7.76Mn

accumulated since last quarter

Value of Holdings

$309.13Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Opko Health, Inc. (NASDAQ:OPK) is held by 228 institutional investors per 13F filings through March 2026.

These investors collectively held 26.6% of Opko Health's outstanding shares in March 2026, down from 27.3% in December 2025.
They increased total shares held in Opko Health by 18.29% from last quarter, and the number of investors in OPK decreased 10.59% annually.
Among the 228 funds, 98 bought more Opko Health shares, 63 sold down, and 67 held their ground.
In total, institutional investors held 201.95Mn shares in Opko Health as of March 2026, up by 31.23Mn shares quarter on quarter, and down 53.79Mn shares year over year.
As of March 31, 2026, the biggest holder of Opko Health is Rubric Capital Management LP at 47.79Mn shares, representing 6.3% of shares outstanding.
Leading buyers of Opko Health shares for the quarter ending March 2026 were VANGUARD PORTFOLIO MANAGEMENT LLC (14.77Mn), VANGUARD CAPITAL MANAGEMENT LLC (14.5Mn), VANGUARD FIDUCIARY TRUST CO (2.74Mn), OP Asset Management Ltd (2.2Mn), BlackRock, Inc. (1.38Mn).
Top sellers of OPK stock for the quarter ending March 2026 included Goldman Sachs Group Inc (4.3Mn), AQR CAPITAL MANAGEMENT LLC (1.26Mn), CITADEL ADVISORS LLC (777.89K), JANE STREET GROUP, LLC (660.96K), HRT FINANCIAL LP (584.72K).
According to Business Quant data, leading holders of OPK for March 2026 are Rubric Capital Management LP (47.79Mn), BlackRock, Inc. (36.23Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (14.77Mn), VANGUARD CAPITAL MANAGEMENT LLC (14.5Mn), GEODE CAPITAL MANAGEMENT, LLC (11.3Mn), State Street Corp (9.5Mn), Goldman Sachs Group Inc (7.68Mn), UBS Group AG (6.07Mn), Whitefort Capital Management, LP (4.25Mn), Northern Trust Corp (3.62Mn).

Form 13F Holdings

223 Institutional Holders

Report period 30 Jun, 2026

Total shares held 204.72Mn

Of outstanding 27.11%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Rubric Capital Management LP	0001687509	47,791,243	6.33%	0	0.00%	$71.69Mn
2	BlackRock, Inc.	0002012383	36,978,893	4.90%	▲746,670	+2.06%	$55.47Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	14,968,930	1.98%	▲469,766	+3.24%	$22.45Mn
4	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	14,934,924	1.98%	▲165,205	+1.12%	$22.40Mn
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	11,581,027	1.53%	▲279,526	+2.47%	$17.38Mn
6	State Street Corp	0000093751	10,309,070	1.36%	▲807,693	+8.50%	$15.46Mn
7	Goldman Sachs Group Inc	0000886982	7,035,492	0.93%	▼639,534	-8.33%	$10.55Mn
8	UBS Group AG	0001610520	5,006,284	0.66%	▼1,065,148	-17.54%	$7.51Mn
9	Whitefort Capital Management, LP	0001884931	4,511,412	0.60%	▲258,072	+6.07%	$6.77Mn
10	Northern Trust Corp	0000073124	3,756,163	0.50%	▲136,817	+3.78%	$5.63Mn
11	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	3,596,980	0.48%	▲22,941	+0.64%	$5.40Mn
11	Sixth Street Partners Management Company, L.P.	0001812095	3,596,980	0.48%	▲3,596,980	0.00%	$5.40Mn
12	HIGHBRIDGE CAPITAL MANAGEMENT LLC	0000919185	3,593,925	0.48%	▲3,593,925	0.00%	$5.43Mn
13	VANGUARD FIDUCIARY TRUST CO	0000933478	2,706,235	0.36%	▼35,782	-1.30%	$4.06Mn
14	AWM Investment Company, Inc.	0001535264	2,110,000	0.28%	▲10,000	+0.48%	$3.17Mn
15	Morgan Stanley	0000895421	1,975,027	0.26%	▲778,940	+65.12%	$2.96Mn
16	CITADEL ADVISORS LLC	0001423053	1,420,922	0.19%	▼658,625	-31.67%	$2.13Mn
17	WASHINGTON GROWTH STRATEGIES LLC	0002044575	1,356,124	0.18%	0	0.00%	$2.03Mn
18	Bank of New York Mellon Corp	0001390777	1,329,974	0.18%	▲49,932	+3.90%	$1.99Mn
19	DIMENSIONAL FUND ADVISORS LP	0000354204	1,267,741	0.17%	▼292,259	-18.73%	$1.90Mn

Showing 1 to 20 of 223 holders