Oceaneering International, Inc.
US ˙ NYSE ˙ US6752321025

SecurityOII / Oceaneering International, Inc.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership828,372 shares
Latest Disclosed Value $ 29,382,354
Franklin Resources Inc reports 85.65% increase in ownership of OII / Oceaneering International, Inc.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 828,372 shares of Oceaneering International, Inc. (US:OII) valued at $29,382,355 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 446,204 shares of Oceaneering International, Inc.. This represents a change in shares of 85.65% during the quarter. The current value of the position is $31,469,852 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F OCEANEERING INTL COM 675232102 828,372 382,168 85.65 29,382 174.03 0.0012
2026-02-11 2025-12-31 13F OCEANEERING INTL COM 675232102 446,204 -256,542 -36.51 10,722 -38.43 0.0026
2025-11-13 2025-09-30 13F OCEANEERING INTL COM 675232102 702,746 -533,447 -43.15 17,414 -32.01 0.0043
2025-08-12 2025-06-30 13F OCEANEERING INTL COM 675232102 1,236,193 -92,970 -6.99 25,614 -11.65 0.0068
2025-05-13 2025-03-31 13F OCEANEERING INTL COM 675232102 1,329,163 -710,712 -34.84 28,989 -45.51 0.0083
2025-02-12 2024-12-31 13F OCEANEERING INTL COM 675232102 2,039,875 111,095 5.76 53,200 7.16 0.0148
2024-11-27 2024-09-30 13F/A-1 OCEANEERING INTL COM 675232102 1,928,780 57,193 3.06 49,647 12.12 0.0139
2024-11-12 2024-09-30 13F OCEANEERING INTL COM 675232102 1,928,780 57,193 49,647 0.0024
2024-08-14 2024-06-30 13F OCEANEERING INTL COM 675232102 1,871,587 17,594 0.95 44,282 2.07 0.0136
2024-05-13 2024-03-31 13F OCEANEERING INTL COM 675232102 1,853,993 157,392 9.28 43,383 20.16 0.0137
2024-02-09 2023-12-31 13F OCEANEERING INTL COM 675232102 1,696,601 19,966 1.19 36,104 -16.28 0.0169
2023-11-13 2023-09-30 13F OCEANEERING INTL COM 675232102 1,676,635 -63,873 -3.67 43,123 32.49 0.0219
2023-08-11 2023-06-30 13F OCEANEERING INTL COM 675232102 1,740,508 309,966 21.67 32,548 29.05 0.0155
2023-05-12 2023-03-31 13F OCEANEERING INTL COM 675232102 1,430,542 462,131 47.72 25,220 48.90 0.0127
2023-02-10 2022-12-31 13F OCEANEERING INTL COM 675232102 968,411 523,438 117.63 16,938 378.31 0.0088
2022-11-14 2022-09-30 13F OCEANEERING INTL COM 675232102 444,973 -41,778 -8.58 3,541 -31.89 0.0019
2022-08-11 2022-06-30 13F OCEANEERING INTL COM 675232102 486,751 133,438 37.77 5,199 -2.95 0.0026
2022-05-13 2022-03-31 13F OCEANEERING INTL COM 675232102 353,313 120,500 51.76 5,357 103.46 0.0021
2022-02-11 2021-12-31 13F OCEANEERING INTL COM 675232102 232,813 1,900 0.82 2,633 -14.40 0.0009
2021-11-12 2021-09-30 13F OCEANEERING INTL COM 675232102 230,913 -49,600 -17.68 3,076 -29.56 0.0012
2021-08-13 2021-06-30 13F OCEANEERING INTL COM 675232102 280,513 53,800 23.73 4,367 68.68 0.0017
2021-05-13 2021-03-31 13F OCEANEERING INTL COM 675232102 226,713 -150,300 -39.87 2,589 -13.61 0.0011
2021-02-10 2020-12-31 13F OCEANEERING INTL COM 675232102 377,013 -63,970 -14.51 2,997 92.98 0.0013
2020-11-12 2020-09-30 13F OCEANEERING INTL COM 675232102 440,983 35,768 8.83 1,553 -33.35 0.0008
2020-08-13 2020-06-30 13F OCEANEERING INTL COM 675232102 405,215 79,100 24.26 2,330 142.96 0.0012
2020-05-13 2020-03-31 13F OCEANEERING INTL COM 675232102 326,115 49,230 17.78 959 -76.77 0.0006
2020-03-11 2019-12-31 13F/A-1 OCEANEERING INTL COM 675232102 276,885 46,465 20.17 4,128 32.22 0.0022
2020-02-12 2019-12-31 13F OCEANEERING INTL COM 675232102 276,885 46,465 4,128 521.4229
2019-11-14 2019-09-30 13F OCEANEERING INTL COM 675232102 230,420 8,800 3.97 3,122 -30.91 0.0017
2019-08-14 2019-06-30 13F OCEANEERING INTL COM 675232102 221,620 6,400 2.97 4,519 33.15 0.0024
2019-05-15 2019-03-31 13F/A-1 OCEANEERING INTL COM 675232102 215,220 0 0.00 3,394 30.34 0.0018
2019-05-14 2019-03-31 13F OCEANEERING INTL COM 675232102 215,220 0 3,394
2019-02-12 2018-12-31 13F OCEANEERING INTL COM 675232102 215,220 0 0.00 2,604 -56.16 0.0016
2018-11-13 2018-09-30 13F OCEANEERING INTL COM 675232102 215,220 -50,200 -18.91 5,940 -12.10 0.0030
2018-08-14 2018-06-30 13F OCEANEERING INTL COM 675232102 265,420 -287,200 -51.97 6,758 -34.04 0.0035
2018-05-10 2018-03-31 13F OCEANEERING INTL COM 675232102 552,620 -70,400 -11.30 10,246 -22.21 0.0052
2018-02-14 2017-12-31 13F OCEANEERING INTL COM 675232102 623,020 -42,600 -6.40 13,171 -24.68 0.0063
2017-11-13 2017-09-30 13F OCEANEERING INTL COM 675232102 665,620 156,800 30.82 17,486 50.47 0.0086
2017-08-10 2017-06-30 13F OCEANEERING INTL COM 675232102 508,820 -3,400 -0.66 11,621 -16.22 0.0058
2017-05-12 2017-03-31 13F OCEANEERING INTL COM 675232102 512,220 59,100 13.04 13,871 8.52 0.0070
2017-02-14 2016-12-31 13F OCEANEERING INTL COM 675232102 453,120 0 0.00 12,782 2.53 0.0066
2016-11-14 2016-09-30 13F OCEANEERING INTL COM 675232102 453,120 77,600 20.66 12,466 11.17 0.0065
2016-08-11 2016-06-30 13F OCEANEERING INTL COM 675232102 375,520 37,100 10.96 11,213 -0.32 0.0060
2016-05-10 2016-03-31 13F OCEANEERING INTL COM 675232102 338,420 16,400 5.09 11,249 -6.89 0.0060
2016-04-27 2015-12-31 13F/A-1 OCEANEERING INTL COM 675232102 322,020 -3,800 -1.17 12,082 -5.60 0.0061
2016-02-12 2015-12-31 13F OCEANEERING INTL COM 675232102 322,020 12,082
2015-11-10 2015-09-30 13F OCEANEERING INTL COM 675232102 325,820 -300,390 -47.97 12,799 -56.13 0.0063
2015-08-12 2015-06-30 13F OCEANEERING INTL COM 675232102 626,210 -38,100 -5.74 29,175 -18.57 0.0132
2015-05-14 2015-03-31 13F OCEANEERING INTL COM 675232102 664,310 -362,380 -35.30 35,827 -40.66 0.0162
2015-02-10 2014-12-31 13F OCEANEERING INTL COM 675232102 1,026,690 -138,660 -11.90 60,379 -20.50 0.0274
2014-11-12 2014-09-30 13F OCEANEERING INTL COM 675232102 1,165,350 97,430 9.12 75,946 -8.98 0.0346
2014-08-12 2014-06-30 13F OCEANEERING INTL COM 675232102 1,067,920 234,460 28.13 83,437 39.31 0.0368
2014-05-13 2014-03-31 13F OCEANEERING INTL COM 675232102 833,460 109,760 15.17 59,892 4.92 0.0283
2014-02-12 2013-12-31 13F OCEANEERING INTL COM 675232102 723,700 33,460 4.85 57,085 1.80 0.0279
2013-11-14 2013-09-30 13F OCEANEERING INTL COM 675232102 690,240 -5,700 -0.82 56,075 11.60 0.0298
2013-08-09 2013-06-30 13F OCEANEERING INTL COM 675232102 695,940 695,940 50,247 0.0287
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.