Oceaneering
288 hedge funds and large institutions have $1.99B invested in Oceaneering in 2025 Q2 according to their latest regulatory filings, with 47 funds opening new positions, 114 increasing their positions, 98 reducing their positions, and 41 closing their positions.
329% more call options, than puts
Call options by funds: $986K | Put options by funds: $230K
16% more repeat investments, than reductions
Existing positions increased: 114 | Existing positions reduced: 98
15% more first-time investments, than exits
New positions opened: 47 | Existing positions closed: 41
1% more funds holding
Funds holding: 285 → 288 (+3)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.23% less ownership
Funds ownership: 95.49% → 95.25% (-0.23%)
5% less capital invested
Capital invested by funds: $2.1B → $1.99B (-$111M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Balyasny Asset Management
Chicago,
Illinois
|
+$23.7M |
| 2 |
Brown Advisory
Baltimore,
Maryland
|
+$15.4M |
| 3 |
Millennium Management
New York
|
+$12.2M |
| 4 |
BTW
Boston Trust Walden
Boston,
Massachusetts
|
+$10.1M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$7.93M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CAM
Congress Asset Management
Boston,
Massachusetts
|
-$39.1M |
| 2 |
Fidelity International
Hamilton,
Bermuda
|
-$17.4M |
| 3 |
BlackRock
New York
|
-$17M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
-$12.9M |
| 5 |
RIM
Ranger Investment Management
Dallas,
Texas
|
-$5.38M |
OII Hedge Fund Activity: Q2 2025 in Review
288 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Oceaneering (OII) for Q2 2025, worth a combined $1.99B — down 5.3% from $2.1B a quarter earlier.
Buyers outnumbered sellers: 47 funds opened new OII positions and 41 closed out — a net gain of 6 holders — while 114 added to existing stakes and 98 trimmed.
The largest buyer was Balyasny Asset Management, adding an estimated $23.7M. The largest seller was Congress Asset Management, exiting entirely with an estimated $39.1M sold.
- 288 institutional investors held Oceaneering (OII) as of Q2 2025, up from 285 in Q1 2025.
- Funds reported $1.99B of Oceaneering stock for Q2 2025, down 5.3% quarter-over-quarter.
- 47 funds opened new Oceaneering positions in Q2 2025 and 41 closed out, a net change of +6 holders.
- The largest Oceaneering buyer in Q2 2025 was Balyasny Asset Management, an estimated $23.7M added.
- The largest Oceaneering seller in Q2 2025 was Congress Asset Management, an estimated $39.1M sold.
Based on aggregated 13F filings for Q2 2025.