Oceaneering International, Inc.

Historical 13F Holders

Symbol
OII
CUSIP
675232102
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 675232102 since 12/18/2024, newest first.

Filer % of Class Filed
Brown Advisory Inc 13G/A Amendment 2
5.1% 8/14/2026
Event 6/30/2026
State Street Corp 13G 5.1% 5/12/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.3% 4/30/2026
Event 3/31/2026
Vanguard Portfolio Management LLC 13G 7.7% 4/29/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 12 0% 3/27/2026
Event 3/13/2026
BlackRock, Inc. 13G/A Amendment 4 14.2% 7/17/2025
Event 6/30/2025
Earnest Partners LLC 13G/A Amendment 7 4.2% 5/15/2025
Event 3/31/2025
Brown Advisory Inc 13G/A Amendment 1
6.6% 4/18/2025
Event 3/31/2025
Brown Advisory Inc 13G
5.1% 4/10/2025
Event 12/31/2024
State Street Corp 13G 4.9% 2/6/2025
Event 12/31/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 11 1.69 M $73.9 M
2026 Q2 394 109 M $4.34 B
2026 Q1 380 102 M $3.61 B
2025 Q4 326 100 M $2.41 B
2025 Q3 311 96.3 M $2.39 B
2025 Q2 298 97.3 M $2.02 B
2025 Q1 299 96.2 M $2.10 B
2024 Q4 299 101 M $2.62 B
2024 Q3 271 102 M $2.52 B
2024 Q2 247 102 M $2.40 B
2024 Q1 247 98.6 M $2.32 B
2023 Q4 247 96.4 M $2.05 B
2023 Q3 257 93.0 M $2.39 B
2023 Q2 233 93.9 M $1.76 B
2023 Q1 240 94.9 M $1.67 B
2022 Q4 217 97.6 M $1.71 B
2022 Q3 212 91.5 M $729 M
2022 Q2 209 92.6 M $988 M
2022 Q1 228 90.2 M $1.37 B
2021 Q4 212 87.3 M $988 M
2021 Q3 205 86.9 M $1.16 B
2021 Q2 199 87.9 M $1.37 B
2021 Q1 185 87.1 M $995 M
2020 Q4 185 92.2 M $734 M
2020 Q3 172 86.0 M $304 M
2020 Q2 186 88.3 M $564 M
2020 Q1 184 90.2 M $266 M
2019 Q4 227 98.4 M $1.47 B
2019 Q3 216 93.6 M $1.27 B
2019 Q2 226 97.1 M $1.98 B
2019 Q1 229 97.6 M $1.54 B
2018 Q4 219 100 M $1.22 B
2018 Q3 255 103 M $2.85 B
2018 Q2 258 107 M $2.73 B
2018 Q1 255 104 M $1.94 B
2017 Q4 263 98.8 M $2.09 B
2017 Q3 287 103 M $2.72 B
2017 Q2 284 100 M $2.29 B
2017 Q1 302 99.4 M $2.88 B
2016 Q4 336 99.4 M $2.80 B
2016 Q3 320 99.6 M $2.74 B
2016 Q2 342 98.3 M $2.94 B
2016 Q1 351 97.4 M $3.21 B
2015 Q4 363 95.6 M $3.59 B
2015 Q3 366 94.8 M $3.73 B
2015 Q2 373 90.5 M $4.21 B
2015 Q1 389 93.1 M $5.02 B
2014 Q4 410 94.0 M $5.54 B
2014 Q3 408 101 M $6.61 B
2014 Q2 421 101 M $7.86 B
2014 Q1 430 98.9 M $7.11 B