GAMCO Investors’s Opko Health OPK Stock Holding History

GAMCO Investors’s Portfolio OPK Stock Details OPK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$263K	Hold	175,000	–	–	﹤0.01%	865
2026 Q1	$200K	Hold	175,000	–	–	﹤0.01%	972
2025 Q4	$221K	Hold	175,000	–	–	﹤0.01%	984
2025 Q3	$271K	Hold	175,000	–	–	﹤0.01%	933
2025 Q2	$231K	Hold	175,000	–	–	﹤0.01%	985
2025 Q1	$291K	Hold	175,000	–	–	﹤0.01%	764
2024 Q4	$257K	Hold	175,000	–	–	﹤0.01%	795
2024 Q3	$261K	Hold	175,000	–	–	﹤0.01%	799
2024 Q2	$219K	Sell	175,000 -5,000	-3%	-$6.48K	﹤0.01%	812
2024 Q1	$216K	Sell	180,000 -5,000	-3%	-$5K	﹤0.01%	804
2023 Q4	$279K	Sell	185,000 -15,000	-8%	-$21.7K	﹤0.01%	765
2023 Q3	$320K	Hold	200,000	–	–	﹤0.01%	738
2023 Q2	$434K	Hold	200,000	–	–	﹤0.01%	698
2023 Q1	$292K	Hold	200,000	–	–	﹤0.01%	776
2022 Q4	$250K	Hold	200,000	–	–	﹤0.01%	802
2022 Q3	$378K	Hold	200,000	–	–	﹤0.01%	720
2022 Q2	$506K	Hold	200,000	–	–	0.01%	694
2022 Q1	$688K	Hold	200,000	–	–	0.01%	680
2021 Q4	$962K	Hold	200,000	–	–	0.01%	632
2021 Q3	$730K	Hold	200,000	–	–	0.01%	678
2021 Q2	$810K	Hold	200,000	–	–	0.01%	684
2021 Q1	$858K	Sell	200,000 -20,000	-9%	-$95.5K	0.01%	647
2020 Q4	$869K	Hold	220,000	–	–	0.01%	630
2020 Q3	$812K	Hold	220,000	–	–	0.01%	606
2020 Q2	$750K	Hold	220,000	–	–	0.01%	606
2020 Q1	$295K	Buy	220,000 +5,000	+2%	+$7.83K	﹤0.01%	740
2019 Q4	$316K	Buy	215,000 +60,000	+39%	+$100K	﹤0.01%	799
2019 Q3	$324K	Buy	155,000 +75,000	+94%	+$153K	﹤0.01%	790
2019 Q2	$195K	Sell	80,000 -70,000	-47%	-$153K	﹤0.01%	886
2019 Q1	$392K	Buy	150,000 +74,000	+97%	+$224K	﹤0.01%	720
2018 Q4	$229K	Sell	76,000 -1,800	-2%	-$6.1K	﹤0.01%	745
2018 Q3	$269K	Hold	77,800	–	–	﹤0.01%	770
2018 Q2	$366K	Sell	77,800 -11,000	-12%	-$41.7K	﹤0.01%	734
2018 Q1	$281K	Buy	88,800 +2,000	+2%	+$8.05K	﹤0.01%	753
2017 Q4	$425K	Sell	86,800 -7,750	-8%	-$45K	﹤0.01%	700
2017 Q3	$649K	Hold	94,550	–	–	﹤0.01%	645
2017 Q2	$622K	Hold	94,550	–	–	﹤0.01%	655
2017 Q1	$756K	Hold	94,550	–	–	﹤0.01%	617
2016 Q4	$879K	Sell	94,550 -2,500	-3%	-$25.9K	0.01%	590
2016 Q3	$1.03M	Hold	97,050	–	–	0.01%	573
2016 Q2	$906K	Sell	97,050 -3,725	-4%	-$37.8K	0.01%	606
2016 Q1	$1.05M	Sell	100,775 -44,000	-30%	-$402K	0.01%	588
2015 Q4	$1.46M	Sell	144,775 -25,125	-15%	-$252K	0.01%	540
2015 Q3	$1.43M	Buy	169,900 +159,900	+1,599%	+$2.12M	0.01%	558
2015 Q2	$161K	Sell	10,000 -1,000	-9%	-$15.6K	﹤0.01%	805
2015 Q1	$156K	Hold	11,000	–	–	﹤0.01%	808
2014 Q4	$110K	Hold	11,000	–	–	﹤0.01%	843
2014 Q3	$94K	Sell	11,000 -4,000	-27%	-$35.2K	﹤0.01%	866
2014 Q2	$133K	Hold	15,000	–	–	﹤0.01%	851
2014 Q1	$140K	Hold	15,000	–	–	﹤0.01%	820
2013 Q4	$127K	Hold	15,000	–	–	﹤0.01%	810
2013 Q3	$132K	Hold	15,000	–	–	﹤0.01%	807
2013 Q2	$107K	Buy	+15,000	New	+$104K	﹤0.01%	788

Other funds holding OPK

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

WCM

Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

GAMCO Investors's OPK Position: Q2 2026 in Review

GAMCO Investors held its Opko Health (OPK) position steady in Q2 2026 at 175,000 shares worth $263K. The position accounts for ﹤0.01% of the portfolio, ranked #865.

GAMCO Investors first reported a position in OPK in Q2 2013 and has held it in 53 quarters since. The position peaked at $1.46M in Q4 2015. 223 funds tracked by Wall St. Rank hold OPK as of Q2 2026.

GAMCO Investors held 175,000 shares of Opko Health worth $263K as of Q2 2026.
GAMCO Investors left its Opko Health share count unchanged in Q2 2026.
Opko Health made up ﹤0.01% of GAMCO Investors's portfolio in Q2 2026, its #865 holding.
GAMCO Investors first reported a position in Opko Health in Q2 2013 and has held it in 53 quarters since.
GAMCO Investors's Opko Health position peaked at $1.46M in Q4 2015.
223 funds tracked by Wall St. Rank held Opko Health as of Q2 2026.

Based on GAMCO Investors's 13F filing for Q2 2026, filed 12 Aug 2026.