Boston Partners’s Oceaneering OII Stock Holding History

Boston Partners’s Portfolio OII Stock Details OII Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-854,941	Closed	-$30.3M	–	835
2026 Q1	$30.3M	Buy	+854,941	New	+$27.7M	0.03%	323
2020 Q1	–	Sell	-54,618	Closed	-$814K	–	715
2019 Q4	$814K	Buy	+54,618	New	+$760K	﹤0.01%	597
2019 Q3	–	Sell	-65,076	Closed	-$1.33M	–	734
2019 Q2	$1.33M	Hold	65,076	–	–	﹤0.01%	589
2019 Q1	$1.03M	Sell	65,076 -42,673	-40%	-$661K	﹤0.01%	620
2018 Q4	$1.3M	Sell	107,749 -36,239	-25%	-$682K	﹤0.01%	613
2018 Q3	$3.97M	Sell	143,988 -4,031	-3%	-$107K	﹤0.01%	499
2018 Q2	$3.77M	Sell	148,019 -119,940	-45%	-$2.68M	﹤0.01%	527
2018 Q1	$4.97M	Hold	267,959	–	–	0.01%	478
2017 Q4	$5.67M	Buy	267,959 +86,936	+48%	+$1.85M	0.01%	471
2017 Q3	$4.75M	Buy	+181,023	New	+$4.38M	0.01%	505

Other funds holding OII

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

MSIIA

Morgan Stanley Institutional Investment Advisors Greenwood Village, Colorado $1.07B AUM 29.17% 1-Year Est. Return

Boston Partners's OII Position: Q2 2026 in Review

Boston Partners sold out of Oceaneering (OII) in Q2 2026, closing a stake of 854,941 shares — an estimated $30.3M sold.

Boston Partners first reported a position in OII in Q3 2017 and held it in 10 quarters. The position peaked at $30.3M in Q1 2026. 376 funds tracked by Wall St. Rank hold OII as of Q2 2026.

Boston Partners reported no remaining Oceaneering position as of Q2 2026 after selling out during the quarter.
Boston Partners sold 854,941 Oceaneering shares in Q2 2026, an estimated $30.3M.
Boston Partners first reported a position in Oceaneering in Q3 2017 and held it in 10 quarters.
Boston Partners's Oceaneering position peaked at $30.3M in Q1 2026.
376 funds tracked by Wall St. Rank held Oceaneering as of Q2 2026.

Based on Boston Partners's 13F filing for Q2 2026, filed 4 Aug 2026.