OII
Oceaneering International, Inc. · Energy · Oil & Gas Equipment & Services
Momentum inputs (comparable managers):
holder breadth +18.2% ·
share flow +5.2% ·
net new positions +15.4%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 114 | +3 | 70.59M | $2.86B | +13 | −10 |
| Q1 2026 | 114 | +9 | 69.23M | $2.45B | +14 | −5 |
| Q4 2025 | 104 | +1 | 76.40M | $1.84B | +1 | — |
| Q3 2025 | 17 | 0 | 40.72M | $1.01B | — | −1 |
| Q2 2025 | 15 | -1 | 38.01M | $787.64M | +1 | −2 |
| Q1 2025 | 13 | +2 | 9.06M | $197.65M | +2 | — |
| Q4 2024 | 11 | +1 | 8.61M | $224.68M | +3 | −2 |
| Q3 2024 | 9 | +1 | 3.59M | $89.35M | +1 | — |
| Q2 2024 | 8 | — | 3.61M | $85.51M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 4.85M | -2.8% | $105.77M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 2.33M | +2.5% | $50.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 2.33M | +2.5% | $50.75M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Fisher Asset Management ✦ | 530.62K | +37.4% | $11.57M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | GAMCO Investors ✦ | 370.19K | -0.2% | $8.07M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 6 | Marshall Wace ✦ | 177.98K | New | $3.88M | 0.0% | New | 1 | SEC ↗ |
| 7 | Marshall Wace ✦ | 177.98K | New | $3.88M | 0.0% | New | 1 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 162.39K | -0.1% | $3.54M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 162.39K | -0.1% | $3.54M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 162.39K | -0.1% | $3.54M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 162.39K | -0.1% | $3.54M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 162.39K | -0.1% | $3.54M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 153.07K | +434.3% | $3.34M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 124.25K | New | $2.71M | 0.0% | New | 1 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 124.25K | New | $2.71M | 0.0% | New | 1 | SEC ↗ |
| 16 | Millennium Management ✦ | 101.83K | +121.8% | $2.22M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Norges Bank ✦ (passive) | 91.87K | -61.5% | $2.00M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 18 | T. Rowe Price ✦ | 86.48K | +5.1% | $1.89M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | Renaissance Technologies ✦ | 54.10K | +270.6% | $1.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | Gotham Asset Management ✦ | 33.17K | +30.3% | $723,460 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $3.88M | 0.0% |
| Marshall Wace | $3.88M | 0.0% |
| Citadel Advisors | $2.71M | 0.0% |
| Citadel Advisors | $2.71M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 362 holders, 101.15M shares, $3.43B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 10.00K sh · $483,690
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology