Hornbeck Offshore Services IHOS
13F holders, Q1 2026 (March 31)274holders +9
37new positions
28sold out
7famous investors
$9.88avg. 13F price*
At the end of Q1 2026, 274 institutions reported holding Hornbeck Offshore Services I (HOS) in their 13F filings, up 9 from Q4 2025. 37 opened new positions and 28 sold out. The largest holders were BlackRock, Inc. ($219.1M), Dimensional Fund Advisors LP ($88.6M) and State Street Corp. ($66.4M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Lee Ainslie (0.0% of Maverick Capital's portfolio).
- Company
- Hornbeck Offshore Services I
- Filed as
- HELIX ENERGY SOLUTIONS GRP I (Q1 2026)
- CUSIP
- 42330P107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $58.6M |
| Exits | 28 | $32.3M |
All 13F filers, Q4 2025 → Q1 2026: 17,663,671 shares bought and 14,600,088 shares sold, net +3,063,583 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 274 holders
| BlackRock, Inc. | 0.00% | Add +2.1% | 22,157,739 | $219.1M |
| Dimensional Fund Advisors LP | 0.02% | Add +2.9% | 8,959,806 | $88.6M |
| State Street Corp. | 0.00% | Add +7.1% | 6,709,503 | $66.4M |
| Invesco Ltd. | 0.01% | Add +34.1% | 6,660,128 | $65.9M |
| Vanguard Portfolio Management LLC | 0.00% | — | 6,234,761 | $61.7M |
| Vanguard Capital Management LLC | 0.00% | — | 6,044,695 | $59.8M |
| American Century Companies Inc. | 0.03% | Add +1.3% | 5,197,560 | $51.4M |
| Principal Financial Group Inc. | 0.02% | Reduce -2.9% | 4,595,933 | $45.5M |
| Wellington Management Group LLP | 0.01% | Add +24.6% | 3,932,543 | $38.9M |
| Geode Capital Management, LLC | 0.00% | Add +2.4% | 3,358,897 | $33.2M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.03% | Add +44.5% | 3,022,408 | $29.9M |
| Systematic Financial Management LP | 0.67% | Reduce -1.3% | 2,958,544 | $29.3M |
| Boston Partners | 0.03% | New | 2,950,746 | $29.1M |
| Van Eck Associates Corp. | 0.02% | Add +47.1% | 2,875,521 | $28.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.9% | 2,593,970 | $25.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +57.4% | 2,088,878 | $20.7M |
| Morgan Stanley | 0.00% | Reduce -10.3% | 1,991,259 | $19.7M |
| Public Employees Retirement Association of Colorado | 0.07% | Reduce -7.6% | 1,730,815 | $17.1M |
| Northern Trust Corp. | 0.00% | Add +3.5% | 1,685,097 | $16.7M |
| Deutsche Bank AG | 0.00% | Add +535.7% | 1,443,954 | $14.3M |
| Gate City Capital Management, LLC | 5.00% | Reduce -30.7% | 1,297,832 | $12.8M |
| Panagora Asset Management Inc. | 0.05% | Reduce -5.0% | 1,274,502 | $12.6M |
| Janus Henderson Group PLC | 0.01% | Add +1571.3% | 1,055,411 | $10.4M |
| Citadel Advisors | 0.01% | Add +49.9% | 1,007,876 | $10.0M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -31.9% | 994,072 | $9.8M |
| Renaissance Technologies | 0.01% | Reduce -3.9% | 966,527 | $9.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 901,645 | $8.9M |
| Hotchkis & Wiley Capital Management LLC | 0.03% | Reduce -13.4% | 894,123 | $8.8M |
| Bridgeway Capital Management, LLC | 0.18% | Reduce -7.9% | 883,786 | $8.7M |
| Bastion Asset Management Inc. | 2.62% | New | 893,824 | $8.6M |
| Tensile Capital Management LP | 1.20% | No change | 849,946 | $8.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -3.2% | 820,714 | $8.1M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +71.2% | 577,979 | $5.7M |
| Kennedy Capital Management LLC | 0.12% | Add +2.5% | 573,439 | $5.7M |
| Empowered Funds, LLC | 0.03% | Reduce -12.1% | 553,380 | $5.5M |
| Simcoe Capital LLC | 4.94% | Reduce -10.6% | 544,276 | $5.4M |
| Pacer Advisors, Inc. | 0.02% | New | 535,710 | $5.3M |
| FMR LLC | 0.00% | Reduce -7.5% | 526,848 | $5.2M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -6.0% | 526,358 | $5.2M |
| Man Group plc | 0.01% | Add +299.2% | 519,035 | $5.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -16.0% | 503,411 | $5.0M |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.8% | 498,348 | $4.9M |
| Public Sector Pension Investment Board | 0.02% | Add +3.3% | 489,352 | $4.8M |
| D. E. Shaw & Co. | 0.00% | Reduce -60.2% | 471,623 | $4.7M |
| Millennium Management | 0.00% | Add +79.3% | 466,152 | $4.6M |
| BNP Paribas Financial Markets | 0.00% | Add +170.4% | 441,705 | $4.4M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -9.0% | 420,628 | $4.2M |
| Rhumbline Advisers | 0.00% | Add +1.2% | 411,324 | $4.1M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | New | 397,039 | $3.9M |
| Assenagon Asset Management S.A. | 0.01% | Reduce -2.9% | 396,637 | $3.9M |
| Franklin Resources Inc. | 0.00% | Add +3552.8% | 393,298 | $3.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -3.7% | 388,029 | $3.8M |
| Nuveen, LLC | 0.00% | Reduce -0.6% | 386,607 | $3.8M |
| UBS Group AG | 0.00% | Reduce -47.9% | 383,090 | $3.8M |
| CSM Advisors, LLC | 0.09% | Reduce -0.5% | 358,475 | $3.5M |
| Sei Investments Co. | 0.00% | Add +93.1% | 335,854 | $3.3M |
| Bank of America Corp. | 0.00% | Reduce -6.9% | 331,076 | $3.3M |
| Prudential Financial Inc. | 0.00% | Add +1.7% | 321,834 | $3.2M |
| Legal & General Group Plc | 0.00% | Reduce -8.9% | 315,064 | $3.1M |
| Two Sigma Investments, LP | 0.00% | New | 308,343 | $3.0M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Reduce -76.9% | 300,000 | $3.0M |
| Guinness Asset Management LTD | 0.05% | Add +38.5% | 297,624 | $2.9M |
| State Board of Administration of Florida Retirement System | 0.01% | Add +355.5% | 291,502 | $2.9M |
| Swiss National Bank | 0.00% | No change | 275,200 | $2.7M |
| Tudor Investment Corporation | 0.01% | Reduce -16.4% | 250,440 | $2.5M |
| State of Wisconsin Investment Board | 0.01% | Reduce -16.1% | 248,759 | $2.5M |
| Victory Capital Management Inc. | 0.00% | Add +9.6% | 224,130 | $2.2M |
| Royce & Associates LP | 0.02% | Reduce -5.6% | 213,560 | $2.1M |
| Voya Investment Management LLC | 0.00% | Reduce -66.5% | 211,907 | $2.1M |
| AQR Capital Management | 0.00% | Add +4.6% | 208,244 | $2.1M |
| Glenorchy Capital Ltd | 1.11% | Add +3.7% | 207,774 | $2.1M |
| California State Teachers Retirement System | 0.00% | Add +41.3% | 187,921 | $1.9M |
| Cresset Asset Management, LLC | 0.01% | Add +0.1% | 184,927 | $1.8M |
| CoreCommodity Management, LLC | 0.34% | Reduce -10.4% | 184,020 | $1.8M |
| Trexquant Investment LP | 0.01% | Reduce -53.3% | 168,632 | $1.7M |
| Wedge Capital Management L L P | 0.03% | Reduce -11.6% | 146,102 | $1.4M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Reduce -4.5% | 146,056 | $1.4M |
| Acadian Asset Management LLC | 0.00% | Add +264.2% | 140,250 | $1.4M |
| OP Asset Management Ltd | 0.01% | New | 132,142 | $1.3M |
| Orion Porfolio Solutions, LLC | 0.01% | Reduce -21.3% | 131,207 | $1.3M |
| Walleye Trading LLC | 0.03% | New | 127,348 | $1.3M |
| Jump Financial, LLC | 0.02% | Reduce -28.5% | 127,336 | $1.3M |
| Nierenberg Investment Management Company, LLC | 0.61% | No change | 124,450 | $1.2M |
| Caption Management, LLC | 0.06% | New | 118,652 | $1.2M |
| New York State Teachers Retirement System | 0.00% | Reduce -21.2% | 117,438 | $1.2M |
| SummerHaven Investment Management, LLC | 0.71% | Reduce -8.2% | 116,582 | $1.2M |
| T. Rowe Price Associates Inc. | 0.00% | Add +15.2% | 114,422 | $1.1M |
| XTX Topco Ltd | 0.02% | Add +36.0% | 112,374 | $1.1M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -6.5% | 111,381 | $1.1M |
| Amundi | 0.00% | Add +42.5% | 108,506 | $1.1M |
| Numerai GP LLC | 0.10% | Add +22.0% | 104,663 | $1.0M |
| Barclays PLC | 0.00% | Reduce -65.1% | 102,425 | $1.0M |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Add +54.7% | 96,091 | $950K |
| Squarepoint Ops LLC | 0.00% | New | 92,279 | $913K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.9% | 91,300 | $903K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 88,444 | $875K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +17.8% | 86,423 | $855K |
| Alliancebernstein L.P. | 0.00% | Reduce -13.2% | 131,430 | $824K |
| Federated Hermes, Inc. | 0.00% | No change | 80,866 | $800K |
| Maverick Capital | 0.01% | New | 75,723 | $749K |
"% of holder's portfolio" is HOS's weight in each manager's 13F, not the share of Hornbeck Offshore Services I the manager owns.