Hennessy Advisors Inc
- SEC CIK
- 0001145255
- Latest filing
- Jul 16, 2026
OII holding history
Oceaneering International Inc in every 13F filed by Hennessy Advisors Inc, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
OII overviewAll 13F holders of OIIFull Q2 2026 holdings
- Shares (Q2 2026)
- 267,086
- Value
- $10.8M
- % of portfolio
- 0.3%
- Quarters held
- 12
- Since Q1 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 267,086 | $10.8M | 0.3% | +267,086 | New | Holders |
| Q4 2024 | 0 | $0 | 0.0% | −1,275,800−100.0% | Sold out | Holders |
| Q3 2024 | 1,275,800 | $31.7M | 1.0% | +158,800+14.2% | Added | Holders |
| Q2 2024 | 1,117,000 | $26.4M | 1.0% | −49,500−4.2% | Reduced | Holders |
| Q1 2024 | 1,166,500 | $27.3M | 1.1% | +184,300+18.8% | Added | Holders |
| Q4 2023 | 982,200 | $20.9M | 1.1% | +829,000+541.1% | Added | Holders |
| Q3 2023 | 153,200 | $3.94M | 0.3% | 00.0% | Unchanged | Holders |
| Q2 2023 | 153,200 | $2.86M | 0.2% | −9,000−5.5% | Reduced | Holders |
| Q1 2023 | 162,200 | $2.86M | 0.2% | −59,800−26.9% | Reduced | Holders |
| Q4 2022 | 222,000 | $3.88M | 0.3% | +3,200+1.5% | Added | Holders |
| Q3 2022 | 218,800 | $1.74M | 0.1% | +3,200+1.5% | Added | Holders |
| Q2 2022 | 215,600 | $2.30M | 0.1% | +20,300+10.4% | Added | Holders |
| Q1 2022 | 195,300 | $2.96M | 0.2% | +195,300 | New | Holders |