Oceaneering International (OII)
Oceaneering International on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE, classified by the SEC as oil & gas field services, nec.
6.9M
Short interest
settlement 2026-09-30
6.9
Days to cover
-2.1 days vs prior
41.8%
Short share of volume
2026-10-23
2,634
Fails to deliver
settlement 2026-09-30
Wed 17 Feb
Next earnings
estimated date
-$1.5M
Insider flow, 90 days
0 buys, 6 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in OII is 6,925,352 shares, up 461,150 shares over the last month. Over the last 48 readings it ranged from 3,065,676 shares (29 August 2025) to 7,536,785 shares (15 September 2026). At the reported average volume of 1.0M shares a day that is 6.9 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 6,925,352 | -8.1% | 1,000,828 | 6.92 |
| 2026-09-15 | 7,536,785 | +16.6% | 832,130 | 9.06 |
| 2026-08-31 | 6,464,202 | +4.6% | 1,008,123 | 6.41 |
| 2026-08-14 | 6,178,918 | +2.3% | 703,395 | 8.78 |
| 2026-07-31 | 6,040,613 | -7.9% | 1,416,958 | 4.26 |
| 2026-07-15 | 6,556,236 | +8.6% | 861,505 | 7.61 |
| 2026-06-30 | 6,037,861 | +8.2% | 1,661,468 | 3.63 |
| 2026-06-15 | 5,582,820 | +7.0% | 796,433 | 7.01 |
| 2026-05-29 | 5,218,752 | +16.9% | 837,279 | 6.23 |
| 2026-05-15 | 4,464,174 | -18.4% | 1,011,605 | 4.41 |
| 2026-04-30 | 5,473,019 | +22.1% | 1,451,781 | 3.77 |
| 2026-04-15 | 4,484,006 | -3.7% | 980,455 | 4.57 |
| 2026-03-31 | 4,655,001 | -11.5% | 1,163,248 | 4.00 |
| 2026-03-13 | 5,261,337 | +9.0% | 1,348,847 | 3.90 |
| 2026-02-27 | 4,828,573 | +8.1% | 1,949,539 | 2.48 |
| 2026-02-13 | 4,467,791 | -7.2% | 1,159,855 | 3.85 |
| 2026-01-30 | 4,814,803 | +14.6% | 1,236,745 | 3.89 |
| 2026-01-15 | 4,202,193 | +5.4% | 931,423 | 4.51 |
| 2025-12-31 | 3,985,810 | +0.0% | 869,938 | 4.58 |
| 2025-12-15 | 3,985,574 | +10.8% | 783,537 | 5.09 |
| 2025-11-28 | 3,596,670 | -7.1% | 716,873 | 5.02 |
| 2025-11-14 | 3,872,580 | -2.9% | 813,867 | 4.76 |
| 2025-10-31 | 3,989,761 | +2.5% | 839,666 | 4.75 |
| 2025-10-15 | 3,890,771 | +4.1% | 564,228 | 6.90 |
| 2025-09-30 | 3,736,053 | +13.6% | 692,987 | 5.39 |
| 2025-09-15 | 3,290,181 | +7.3% | 541,140 | 6.08 |
| 2025-08-29 | 3,065,676 | -4.3% | 599,346 | 5.12 |
| 2025-08-15 | 3,203,418 | +0.9% | 728,398 | 4.40 |
| 2025-07-31 | 3,174,134 | -16.5% | 954,283 | 3.33 |
| 2025-07-15 | 3,801,273 | -2.5% | 680,963 | 5.58 |
| 2025-06-30 | 3,899,084 | -2.6% | 967,662 | 4.03 |
| 2025-06-13 | 4,001,614 | -0.3% | 697,736 | 5.74 |
| 2025-05-30 | 4,015,519 | +3.5% | 594,946 | 6.75 |
| 2025-05-15 | 3,878,389 | +5.6% | 654,340 | 5.93 |
| 2025-04-30 | 3,672,841 | -9.3% | 1,202,820 | 3.05 |
| 2025-04-15 | 4,047,924 | +7.8% | 1,202,368 | 3.37 |
| 2025-03-31 | 3,755,676 | -10.4% | 1,011,893 | 3.71 |
| 2025-03-14 | 4,191,403 | -8.3% | 1,283,165 | 3.27 |
| 2025-02-28 | 4,572,162 | -9.7% | 1,174,206 | 3.89 |
| 2025-02-14 | 5,063,836 | +0.6% | 591,606 | 8.56 |
| 2025-01-31 | 5,034,463 | +6.9% | 626,448 | 8.04 |
| 2025-01-15 | 4,710,726 | +12.0% | 801,300 | 5.88 |
| 2024-12-31 | 4,204,974 | -2.9% | 857,995 | 4.90 |
| 2024-12-13 | 4,331,192 | +2.2% | 787,337 | 5.50 |
| 2024-11-29 | 4,237,707 | -5.1% | 704,592 | 6.01 |
| 2024-11-15 | 4,466,947 | +2.6% | 792,443 | 5.64 |
| 2024-10-31 | 4,354,263 | -3.0% | 879,047 | 4.95 |
| 2024-10-15 | 4,486,695 | -10.9% | 605,872 | 7.41 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of OII volume is 41.8%, down 36.1 points over the last five sessions. Over the last 30 readings it ranged from 33.4% (21 September 2026) to 87.8% (21 October 2026). The latest reading is 19.7 points below the 30-session average of 61.6%, on 715K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 299K | 715K | 41.8% | 14,649 |
| 2026-10-22 | 757K | 1.5M | 49.4% | 54,026 |
| 2026-10-21 | 294K | 335K | 87.8% | 0 |
| 2026-10-20 | 108K | 140K | 77.5% | 0 |
| 2026-10-19 | 135K | 188K | 71.8% | 0 |
| 2026-10-16 | 253K | 324K | 78.0% | 100 |
| 2026-10-15 | 195K | 294K | 66.3% | 285 |
| 2026-10-14 | 156K | 342K | 45.5% | 7 |
| 2026-10-13 | 177K | 238K | 74.4% | 0 |
| 2026-10-12 | 183K | 244K | 75.1% | 0 |
| 2026-10-09 | 87K | 112K | 77.8% | 1,602 |
| 2026-10-08 | 204K | 274K | 74.4% | 61 |
| 2026-10-07 | 218K | 283K | 77.3% | 52 |
| 2026-10-06 | 233K | 303K | 77.1% | 0 |
| 2026-10-05 | 140K | 213K | 65.8% | 0 |
| 2026-10-02 | 137K | 204K | 67.2% | 0 |
| 2026-10-01 | 192K | 275K | 69.7% | 3,737 |
| 2026-09-30 | 248K | 556K | 44.7% | 80 |
| 2026-09-29 | 187K | 410K | 45.7% | 200 |
| 2026-09-28 | 80K | 142K | 56.5% | 40 |
| 2026-09-25 | 209K | 328K | 63.8% | 319 |
| 2026-09-24 | 108K | 182K | 59.6% | 0 |
| 2026-09-23 | 75K | 131K | 57.5% | 0 |
| 2026-09-22 | 216K | 391K | 55.2% | 0 |
| 2026-09-21 | 98K | 294K | 33.4% | 1 |
| 2026-09-18 | 183K | 338K | 54.3% | 30 |
| 2026-09-17 | 189K | 373K | 50.7% | 0 |
| 2026-09-16 | 153K | 331K | 46.3% | 0 |
| 2026-09-15 | 188K | 323K | 58.0% | 101 |
| 2026-09-14 | 215K | 480K | 44.9% | 1,283 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in OII is 2,634 shares, up 117 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (27 August 2026) to 153,855 shares (27 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 2,634 | $44.22 | $116K |
| 2026-09-21 | 2,517 | $46.29 | $117K |
| 2026-09-18 | 112 | $46.20 | $5K |
| 2026-09-17 | 563 | $46.61 | $26K |
| 2026-09-16 | 1,143 | $47.68 | $54K |
| 2026-09-14 | 34 | $51.09 | $2K |
| 2026-09-08 | 1,314 | $51.40 | $68K |
| 2026-09-04 | 1,109 | $51.78 | $57K |
| 2026-09-03 | 90 | $51.63 | $5K |
| 2026-08-31 | 156 | $50.59 | $8K |
| 2026-08-27 | 1 | $49.62 | $50 |
| 2026-08-25 | 3 | $50.46 | $151 |
| 2026-08-24 | 2 | $53.00 | $106 |
| 2026-07-29 | 12 | $47.99 | $576 |
| 2026-07-27 | 153,855 | $52.73 | $8.1M |
| 2026-07-23 | 62 | $45.00 | $3K |
| 2026-07-21 | 255 | $42.82 | $11K |
| 2026-07-20 | 946 | $42.28 | $40K |
| 2026-07-17 | 12 | $42.30 | $508 |
| 2026-07-16 | 145 | $42.66 | $6K |
| 2026-07-14 | 3,229 | $43.22 | $140K |
| 2026-07-06 | 836 | $38.50 | $32K |
| 2026-06-30 | 21 | $39.53 | $830 |
| 2026-06-29 | 5,779 | $40.03 | $231K |
| 2026-06-26 | 498 | $39.37 | $20K |
| 2026-06-25 | 6,541 | $36.29 | $237K |
| 2026-06-17 | 420 | $37.31 | $16K |
| 2026-06-05 | 55 | $39.78 | $2K |
| 2026-06-03 | 33 | $38.67 | $1K |
| 2026-06-01 | 23 | $38.23 | $879 |
Insider trades
SEC Form 4, newest first. JSONInsiders at OII reported 6 open-market sells worth $1.5M in the last 90 days and no open-market buys. Latest filing: LARSON RODERICK A. (President and CEO) on 2026-10-01.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-01 | LARSON RODERICK A. | President and CEO | Sell | 4K | $44.38 | $191K | 391K |
| 2026-10-01 | LARSON RODERICK A. | President and CEO | Sell | 2K | $43.61 | $74K | 396K |
| 2026-08-07 | MURPHY PAUL B JR | Director | Sell | 10K | $48.37 | $484K | 69K |
| 2026-07-30 | MCEVOY M KEVIN | Director | Sell | 3K | $47.92 | $144K | 134K |
| 2026-07-30 | DYER CHRISTOPHER J | SVP, OPGroup | Sell | 1K | $47.65 | $57K | 15K |
| 2026-07-30 | Childress Earl | SVP, Chief Commercial Ofc. | Sell | 13K | $46.71 | $593K | 23K |
| 2026-06-30 | GOODWIN DEANNA L | Director | Sell | 7K | $40.69 | $285K | 36K |
| 2026-05-18 | LARSON RODERICK A. | President and CEO | Sell | 5K | $38.27 | $191K | 397K |
| 2026-05-15 | WEBSTER STEVEN A | Director | Grant | 5K | $0.00 | $0 | 166K |
| 2026-05-15 | Reinhardsen Jon Erik | Director | Grant | 5K | $0.00 | $0 | 101K |
| 2026-05-15 | Poddar Reema | Director | Grant | 5K | $0.00 | $0 | 23K |
| 2026-05-15 | MURPHY PAUL B JR | Director | Grant | 5K | $0.00 | $0 | 79K |
| 2026-05-15 | MCEVOY M KEVIN | Director | Grant | 7K | $0.00 | $0 | 137K |
| 2026-05-15 | Jenkins Roger W. | Director | Grant | 5K | $0.00 | $0 | 5K |
| 2026-05-15 | GOODWIN DEANNA L | Director | Grant | 5K | $0.00 | $0 | 43K |
| 2026-05-15 | Beachy Karen H | Director | Grant | 5K | $0.00 | $0 | 27K |
| 2026-05-15 | BERRY WILLIAM B | Director | Grant | 5K | $0.00 | $0 | 101K |
| 2026-05-13 | MCDONALD MARTIN J | SVP, Subsea Robotics | Sell | 44K | $38.49 | $1.7M | 49K |
| 2026-05-12 | MCDONALD MARTIN J | SVP, Subsea Robotics | Sell | 26K | $38.33 | $999K | 93K |
| 2026-03-11 | MCEVOY M KEVIN | Director | Sell | 26K | $35.27 | $906K | 130K |
| 2026-02-26 | Laura Benjamin | SVP & Chief Operating Officer | Sell | 5K | $36.88 | $188K | 41K |
| 2026-02-26 | Kriendler Holly | SVP, Chief H.R. Officer | Sell | 6K | $37.31 | $216K | 25K |
| 2026-02-26 | GRANATO LEONARDO P | SVP, IMDS | Sell | 202 | $37.34 | $8K | 0 |
| 2026-02-26 | GRANATO LEONARDO P | SVP, IMDS | Sell | 1K | $37.00 | $46K | 14K |
| 2026-02-25 | Simons Jennifer Fremont | SVP, CLO and Secretary | Sell | 10K | $38.96 | $401K | 35K |
| 2026-02-25 | Roedel Shaun | SVP, Mfd. Prods. | Gift | 2K | $0.00 | $0 | 54K |
| 2026-02-25 | Laura Benjamin | SVP & Chief Operating Officer | Sell | 33K | $37.51 | $1.2M | 46K |
| 2026-02-25 | Kriendler Holly | SVP, Chief H.R. Officer | Sell | 19K | $37.73 | $717K | 31K |
| 2026-02-25 | GRANATO LEONARDO P | SVP, IMDS | Sell | 8K | $37.47 | $315K | 15K |
| 2026-02-25 | Dunn Catherine E | VP, Chief Accounting Officer | Sell | 6K | $37.52 | $233K | 0 |
| 2026-02-25 | Dunn Catherine E | VP, Chief Accounting Officer | Sell | 3K | $37.97 | $109K | 11K |
| 2026-02-25 | DYER CHRISTOPHER J | SVP, OPGroup | Sell | 6K | $38.08 | $228K | 16K |
| 2026-02-25 | Childress Earl | SVP, Chief Commercial Ofc. | Sell | 23K | $37.41 | $842K | 36K |
| 2026-02-25 | Beachy Karen H | Director | Sell | 10K | $37.41 | $367K | 23K |
| 2026-02-24 | Simons Jennifer Fremont | SVP, CLO and Secretary | Tax withholding | 7K | $37.22 | $248K | 46K |
| 2026-02-24 | Roedel Shaun | SVP, Mfd. Prods. | Tax withholding | 2K | $37.22 | $77K | 56K |
| 2026-02-24 | MCDONALD MARTIN J | SVP, Subsea Robotics | Tax withholding | 5K | $37.22 | $180K | 119K |
| 2026-02-24 | Laura Benjamin | SVP & Chief Operating Officer | Tax withholding | 6K | $37.22 | $207K | 79K |
| 2026-02-24 | LARSON RODERICK A. | President and CEO | Tax withholding | 38K | $37.22 | $1.4M | 251K |
| 2026-02-24 | Kriendler Holly | SVP, Chief H.R. Officer | Tax withholding | 4K | $37.22 | $151K | 50K |
| 2026-02-24 | GRANATO LEONARDO P | SVP, IMDS | Tax withholding | 3K | $37.22 | $105K | 24K |
| 2026-02-24 | Dunn Catherine E | VP, Chief Accounting Officer | Tax withholding | 575 | $37.22 | $21K | 14K |
| 2026-02-24 | DYER CHRISTOPHER J | SVP, OPGroup | Tax withholding | 3K | $37.22 | $105K | 22K |
| 2026-02-24 | Childress Earl | SVP, Chief Commercial Ofc. | Tax withholding | 5K | $37.22 | $175K | 58K |
| 2026-01-05 | Simons Jennifer Fremont | SVP, CLO and Secretary | Sell | 843 | $26.85 | $23K | 52K |
| 2026-01-05 | Simons Jennifer Fremont | SVP, CLO and Secretary | Sell | 28K | $26.33 | $745K | 53K |
| 2026-01-02 | Simons Jennifer Fremont | SVP, CLO and Secretary | Tax withholding | 20K | $24.03 | $470K | 81K |
| 2025-09-02 | MURPHY PAUL B JR | Director | Sell | 10K | $24.25 | $243K | 74K |
| 2025-08-27 | Curtis Alan R | SVP and CFO | Sell | 15K | $24.36 | $361K | 155K |
| 2025-08-25 | Roedel Shaun | SVP, Mfd. Prods. | Gift | 2K | $0.00 | $0 | 58K |
| 2025-05-22 | Beachy Karen H | Director | Sell | 5K | $18.94 | $100K | 33K |
| 2025-05-09 | GOODWIN DEANNA L | Director | Grant | 10K | $0.00 | $0 | 38K |
| 2025-05-09 | MCEVOY M KEVIN | Director | Grant | 14K | $0.00 | $0 | 156K |
| 2025-05-09 | WEBSTER STEVEN A | Director | Grant | 10K | $0.00 | $0 | 161K |
| 2025-05-09 | Reinhardsen Jon Erik | Director | Grant | 10K | $0.00 | $0 | 97K |
| 2025-05-09 | Poddar Reema | Director | Grant | 10K | $0.00 | $0 | 18K |
| 2025-05-09 | MURPHY PAUL B JR | Director | Grant | 10K | $0.00 | $0 | 84K |
| 2025-05-09 | Beachy Karen H | Director | Grant | 10K | $0.00 | $0 | 38K |
| 2025-05-09 | BERRY WILLIAM B | Director | Grant | 10K | $0.00 | $0 | 97K |
| 2025-02-25 | Beierl Philip G | SVP, Aerospace and Def Tech. | Tax withholding | 3K | $22.09 | $57K | 52K |
| 2025-02-25 | LARSON RODERICK A. | President and CEO | Tax withholding | 41K | $22.09 | $907K | 353K |
| 2025-02-25 | Dunn Catherine E | VP, Chief Accounting Officer | Tax withholding | 638 | $22.09 | $14K | 14K |
| 2025-02-25 | GRANATO LEONARDO P | SVP, IMDS | Tax withholding | 522 | $22.09 | $12K | 27K |
| 2025-02-25 | DYER CHRISTOPHER J | SVP, OPGroup | Tax withholding | 1K | $22.09 | $26K | 25K |
| 2025-02-25 | Roedel Shaun | SVP, Mfd. Prods. | Tax withholding | 2K | $22.09 | $53K | 60K |
| 2025-02-25 | Kriendler Holly | SVP, Chief H.R. Officer | Tax withholding | 4K | $22.09 | $93K | 54K |
| 2025-02-25 | Childress Earl | SVP, Chief Commercial Ofc. | Tax withholding | 5K | $22.09 | $116K | 63K |
| 2025-02-25 | MCDONALD MARTIN J | SVP, Subsea Robotics | Tax withholding | 3K | $22.09 | $73K | 124K |
| 2025-02-25 | Laura Benjamin | SVP & Chief Operating Officer | Tax withholding | 4K | $22.09 | $81K | 85K |
| 2025-02-25 | Curtis Alan R | SVP and CFO | Tax withholding | 14K | $22.09 | $299K | 170K |
| 2025-02-24 | MERZ WILLIAM R. | SVP, Aerospace and Def. Tech. | Grant | 6K | $0.00 | $0 | 13K |
| 2025-02-24 | LARSON RODERICK A. | President and CEO | Grant | 92K | $0.00 | $0 | 394K |
| 2025-02-24 | Dunn Catherine E | VP, Chief Accounting Officer | Grant | 3K | $0.00 | $0 | 15K |
| 2025-02-24 | GRANATO LEONARDO P | SVP, IMDS | Grant | 7K | $0.00 | $0 | 27K |
| 2025-02-24 | DYER CHRISTOPHER J | SVP, OPGroup | Grant | 7K | $0.00 | $0 | 26K |
| 2025-02-24 | Roedel Shaun | SVP, Mfd. Prods. | Grant | 7K | $0.00 | $0 | 63K |
| 2025-02-24 | Kriendler Holly | SVP, Chief H.R. Officer | Grant | 9K | $0.00 | $0 | 58K |
| 2025-02-24 | Childress Earl | SVP, Chief Commercial Ofc. | Grant | 11K | $0.00 | $0 | 68K |
| 2025-02-24 | MCDONALD MARTIN J | SVP, Subsea Robotics | Grant | 11K | $0.00 | $0 | 127K |
| 2025-02-24 | Laura Benjamin | SVP & Chief Operating Officer | Grant | 18K | $0.00 | $0 | 88K |
| 2025-02-24 | Simons Jennifer Fremont | SVP, CLO and Secretary | Grant | 18K | $0.00 | $0 | 101K |
| 2025-02-24 | Curtis Alan R | SVP and CFO | Grant | 30K | $0.00 | $0 | 184K |
| 2024-11-07 | GRANATO LEONARDO P | SVP, IMDS | Sell | 2K | $28.12 | $56K | 20K |
| 2024-09-10 | Beachy Karen H | Director | Sell | 3K | $22.94 | $76K | 28K |
| 2024-08-28 | Beierl Philip G | SVP, Aerospace and Def Tech. | Discretionary trade | 33K | $27.06 | $883K | 0 |
| 2024-08-20 | MCEVOY M KEVIN | Director | Sell | 10K | $26.12 | $253K | 142K |
| 2024-08-15 | Curtis Alan R | SVP and CFO | Sell | 21K | $27.32 | $576K | 154K |
| 2024-08-08 | Childress Earl | SVP, Chief Commercial Ofc. | Sell | 10K | $25.70 | $257K | 57K |
| 2024-06-23 | Laura Benjamin | SVP, Chief Innov. Ofc. | Tax withholding | 4K | $22.02 | $80K | 70K |
| 2024-06-23 | Childress Earl | SVP, Chief Commercial Ofc. | Tax withholding | 5K | $22.02 | $112K | 67K |
| 2024-05-10 | Beachy Karen H | Director | Grant | 9K | $0.00 | $0 | 32K |
| 2024-05-10 | BERRY WILLIAM B | Director | Grant | 9K | $0.00 | $0 | 87K |
| 2024-05-10 | GOODWIN DEANNA L | Director | Grant | 9K | $0.00 | $0 | 29K |
| 2024-05-10 | MCEVOY M KEVIN | Director | Grant | 13K | $0.00 | $0 | 152K |
| 2024-05-10 | MURPHY PAUL B JR | Director | Grant | 9K | $0.00 | $0 | 75K |
| 2024-05-10 | Poddar Reema | Director | Grant | 9K | $0.00 | $0 | 9K |
| 2024-05-10 | Reinhardsen Jon Erik | Director | Grant | 9K | $0.00 | $0 | 87K |
| 2024-05-10 | WEBSTER STEVEN A | Director | Grant | 9K | $0.00 | $0 | 152K |
| 2024-03-07 | Beachy Karen H | Director | Sell | 8K | $20.50 | $156K | 23K |
| 2024-02-26 | Childress Earl | SVP, Chief Commercial Ofc. | Tax withholding | 5K | $21.97 | $100K | 72K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON20 Form 144 notices on file for OII worth $12.9M at the prices reported; 3 in the last 90 days worth $793K. Latest: MCEVOY M KEVIN filed on 2026-07-30 to sell 3,000 shares ($142K) from 2026-07-30.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-07-30 | MCEVOY M KEVINDirector | 3K | $142K | 0.003% | 2026-07-30 | Fidelity Investments |
| 2026-07-30 | DYER CHRISTOPHER JOfficer | 1K | $57K | 0.001% | 2026-07-30 | Fidelity Brokerage Services LLC |
| 2026-07-30 | Childress EarlOfficer | 13K | $593K | 0.013% | 2026-07-30 | Fidelity Brokerage Services LLC |
| 2026-06-30 | GOODWIN DEANNA LDirector | 7K | $285K | 0.007% | 2026-06-30 | Fidelity Brokerage Services LLC |
| 2026-05-13 | MCDONALD MARTIN JOfficer | 44K | $1.7M | 0.044% | 2026-05-13 | Fidelity Brokerage Services LLC |
| 2026-05-12 | MCDONALD MARTIN JOfficer | 26K | $999K | 0.026% | 2026-05-12 | Fidelity Brokerage Services LLC |
| 2026-03-12 | M Kevin McEvoyDirector | 26K | $904K | 0.026% | 2026-03-11 | Merrill |
| 2026-02-26 | Kriendler HollyOfficer | 6K | $216K | 0.006% | 2026-02-26 | Fidelity Brokerage Services LLC |
| 2026-02-26 | GRANATO LEONARDO POfficer | 1K | $46K | 0.001% | 2026-02-26 | Fidelity Brokerage Services LLC |
| 2026-02-26 | Curtis Alan RFormer Officer | 41K | $1.5M | 0.041% | 2026-02-26 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Simons Jennifer FremontOfficer | 10K | $401K | 0.010% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Benjamin LauraOfficer | 38K | $1.5M | 0.039% | 2026-02-25 | J.P. Morgan Securities LLC |
| 2026-02-25 | Kriendler HollyOfficer | 19K | $717K | 0.019% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | GRANATO LEONARDO POfficer | 8K | $315K | 0.008% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Catherine E DunnAffiliate | 3K | $109K | 0.003% | 2026-02-25 | Merrill Lynch |
| 2026-02-25 | DYER CHRISTOPHER JOfficer | 6K | $228K | 0.006% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Curtis Alan RFormer Officer | 31K | $1.2M | 0.031% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Childress EarlOfficer | 23K | $866K | 0.023% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-02-25 | Beachy Karen HDirector | 10K | $367K | 0.010% | 2026-02-25 | Fidelity Brokerage Services LLC |
| 2026-01-05 | Simons Jennifer FremontOfficer | 29K | $769K | 0.029% | 2026-01-05 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON5 holders report 5% or more of OII in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 7.7% of the class (7,660,752 shares), filed 2026-04-29 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 2 | BROWN ADVISORY INCparent holding company | 5.1M | 5.1% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 2 | BROWN ADVISORY LLCinvestment adviser | 5.0M | 5.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 2 | BROWN INVESTMENT ADVISORY & TRUST CObank | 44K | 0.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 2 | SIGNATURE FINANCIAL MANAGEMENT, INC.investment adviser | 3K | 0.0% | 2026-06-30 |
| 2026-05-12 | 13G | STATE STREET CORPORATIONparent holding company | 5.0M | 5.1% | 2026-03-31 |
| 2026-04-30 | 13G | Vanguard Capital Managementinvestment adviser | 5.2M | 5.3% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 7.7M | 7.7% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 12 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding OII at their latest 13F. JSON6 of the 30 tracked managers held OII at their latest 13F, $53.0M in total at quarter-end prices. Fisher Asset Management is the largest at $25.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Fisher Asset Management | 2026-06-30 | 635K | $25.7M | 0.01% | -157K |
| AQR Capital Management | 2026-06-30 | 449K | $18.2M | 0.01% | +57K |
| Millennium Management | 2026-06-30 | 155K | $6.3M | 0.00% | new |
| Renaissance Technologies | 2026-06-30 | 45K | $1.8M | 0.00% | -40K |
| Two Sigma Investments | 2026-06-30 | 15K | $595K | 0.00% | new |
| D. E. Shaw & Co. | 2026-06-30 | 9K | $367K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Oceaneering International in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Oceaneering International (OII), SEC CIK 73756, listed on NYSE, classified by the SEC as oil & gas field services, nec. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-07-30.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-10-21.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-01.JSON and CSV
- Company record
- EDGAR filing index for CIK 73756Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as oil & gas field services, nec
Other company pages
Datasets
Frequently Asked Questions
How much of OII is sold short?
6,925,352 shares were held short at the 2026-09-30 settlement, 6.9 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is OII's daily short volume?
On 2026-10-23, 299,380 of the 715,462 OII shares reported to FINRA were sold short, 41.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does OII have fails to deliver?
The SEC's latest file shows 2,634 OII shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are OII insiders buying or selling?
Insiders at OII reported 6 open-market sells worth $1.5M in the last 90 days and no open-market buys. Latest filing: LARSON RODERICK A. (President and CEO) on 2026-10-01.
Have OII insiders filed to sell?
20 Form 144 notices on file for OII worth $12.9M at the prices reported; 3 in the last 90 days worth $793K. Latest: MCEVOY M KEVIN filed on 2026-07-30 to sell 3,000 shares ($142K) from 2026-07-30.
Who owns 5% or more of OII?
5 holders report 5% or more of OII in their latest filing, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 7.7% of the class (7,660,752 shares), filed 2026-04-29 for an event on 2026-03-31.
Which tracked 13F managers own OII?
6 of the 30 tracked 13F managers held OII shares at their latest filing, $53.0M in all. The largest: Ken Fisher's Fisher Asset Management (635K shares, $25.7M), Cliff Asness's AQR Capital Management (449K shares, $18.2M), Izzy Englander's Millennium Management (155K shares, $6.3M), Renaissance Technologies (45K shares, $1.8M), Two Sigma Investments (15K shares, $595K), D. E. Shaw & Co. (9K shares, $367K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.