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

0100200300 Q1 2024: 223Q1 2024Q2 2024: 242Q2 2024Q3 2024: 238Q3 2024Q4 2024: 241Q4 2024Q1 2025: 256Q1 2025Q2 2025: 253Q2 2025Q3 2025: 245Q3 2025Q4 2025: 265Q4 2025Q1 2026: 274Q1 2026Q2 2026: 285Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions37$58.6M
Exits28$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
MetLife Investment Management, LLC 0.00% Add +8.1% 75,343 $745K
Fifth Third Bancorp 0.00% Add +11829.9% 74,562 $737K
Algert Global LLC 0.01% Reduce -30.1% 73,580 $728K
State of Alaska, Department of Revenue 0.01% Reduce -2.0% 73,623 $727K
Illinois Municipal Retirement Fund 0.01% Add +3.5% 71,231 $704K
Quantinno Capital Management LP 0.00% Add +27.9% 70,006 $692K
Diversified Trust Co. 0.01% Add +16.8% 69,457 $687K
Guggenheim Capital LLC 0.01% Reduce -22.6% 67,227 $665K
Jacobs Levy Equity Management, Inc. 0.00% Reduce -33.3% 65,480 $648K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Reduce -96.5% 65,254 $645K
Nisa Investment Advisors, LLC 0.00% Reduce -67.9% 64,953 $642K
Susquehanna International Group, LLP 0.00% Reduce -12.3% 61,510 $608K
Louisiana State Employees Retirement System 0.01% Reduce -3.2% 60,700 $600K
Manufacturers Life Insurance Company, The 0.00% Add +42.5% 60,160 $595K
ARGA Investment Management, LP 0.02% No change 59,441 $588K
Allspring Global Investments Holdings, LLC 0.00% Add +9.0% 61,326 $575K
Wells Fargo & Company 0.00% Reduce -65.0% 55,193 $546K
EP Wealth Advisors, LLC 0.00% Add +4.1% 54,798 $542K
Vanguard Global Advisers, LLC 0.00% — 52,852 $523K
Gsa Capital Partners LLP 0.03% Reduce -67.2% 52,713 $521K
State of Tennessee, Department of Treasury 0.00% Reduce -3.4% 51,841 $513K
Citigroup Inc. 0.00% Add +3.2% 50,744 $502K
Creative Planning 0.00% Add +72.2% 50,694 $501K
Raymond James Financial Inc. 0.00% Add +70.4% 50,623 $501K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +24.1% 49,553 $490K
Simplex Trading, LLC 0.01% New 47,686 $472K
Profund Advisors LLC 0.02% Add +30.1% 45,027 $445K
Great Lakes Advisors, LLC 0.00% Add +7.6% 41,983 $415K
Graham Capital Management, L.P. 0.02% Add +206.8% 41,610 $412K
New York State Common Retirement Fund 0.00% No change 40,514 $401K
Intech Investment Management LLC 0.00% Reduce -33.8% 39,763 $393K
Amalgamated Bank 0.00% Reduce -0.8% 39,454 $390K
Caxton Associates LLP 0.01% Reduce -44.1% 38,531 $381K
Arizona State Retirement System 0.00% Reduce -1.2% 38,379 $380K
Police & Firemen's Retirement System of New Jersey 0.00% Add +11.8% 38,269 $378K
Fox Run Management, L.L.C. 0.07% Reduce -55.3% 38,333 $374K
Yousif Capital Management, LLC 0.00% Reduce -2.2% 36,447 $360K
Vanguard Investments Australia, Ltd. 0.00% — 36,033 $356K
Teachers Retirement System of the State of Kentucky 0.00% No change 34,523 $341K
Commonwealth of Pennsylvania Public School Empls Retrmt SYS 0.00% Reduce -0.1% 33,826 $335K
Oregon Public Employees Retirement Fund 0.00% No change 31,301 $310K
Los Angeles Capital Management LLC 0.00% Add +5856.6% 31,272 $309K
Teacher Retirement System of Texas 0.00% New 30,701 $304K
Brooklyn Investment Group 0.01% Add +80.9% 30,633 $303K
KLP Kapitalforvaltning As 0.00% No change 30,100 $298K
PNC Financial Services Group, Inc. 0.00% Reduce -15.3% 29,642 $293K
OneDigital Investment Advisors LLC 0.00% New 28,226 $279K
Brevan Howard Capital Management LP 0.00% Reduce -61.6% 26,606 $263K
Envestnet Asset Management Inc. 0.00% Add +41.4% 24,670 $244K
Catalyst Funds Management Pty Ltd 0.04% New 24,480 $242K
Pictet Asset Management Holding SA 0.00% Add +8.4% 24,021 $238K
Aquatic Capital Management LLC 0.01% Reduce -48.9% 22,198 $220K
ProShare Advisors LLC 0.00% Reduce -20.0% 21,627 $214K
Mirabella Financial Services LLP 0.02% Reduce -27.2% 20,774 $205K
Commonwealth Equity Services, LLC 0.00% New 20,732 $205K
Inceptionr LLC 0.05% New 20,631 $204K
DRW Securities, LLC 0.01% Reduce -41.0% 20,431 $202K
Bleakley Financial Group, LLC 0.00% New 20,408 $202K
Bank of Montreal 0.00% Reduce -3.3% 20,008 $198K
Maryland State Retirement & Pension System 0.00% Add +0.1% 19,679 $195K
Centiva Capital, LP 0.01% New 19,281 $191K
Cetera Investment Advisers 0.00% Add +14.4% 18,676 $185K
Prelude Capital Management, LLC 0.01% Reduce -64.8% 18,500 $183K
AE Wealth Management LLC 0.00% New 18,215 $180K
Quantbot Technologies LP 0.01% New 17,960 $178K
SG Americas Securities, LLC 0.00% Reduce -57.7% 17,927 $177K
Mercer Global Advisors Inc. 0.00% Add +17.0% 17,729 $175K
WINTON GROUP Ltd 0.01% New 16,200 $160K
Meeder Advisory Services, Inc. 0.01% Add +1.6% 16,122 $159K
Axq Capital, LP 0.02% Reduce -46.4% 15,733 $156K
Mutual of America Capital Management LLC 0.00% Add +0.1% 15,654 $155K
CenterBook Partners LP 0.01% Reduce -98.7% 15,497 $153K
Prospera Financial Services Inc 0.00% Reduce -55.0% 15,083 $149K
Canada Pension Plan Investment Board 0.00% No change 14,800 $146K
HSBC Holdings PLC 0.00% Reduce -82.2% 13,954 $140K
Magnetar Financial LLC 0.00% Reduce -77.7% 13,905 $138K
Assetmark, Inc. 0.00% Add +2.5% 13,822 $137K
Inscription Capital, LLC 0.01% Add +2.6% 13,593 $134K
Ewa, LLC 0.03% Reduce -0.3% 13,561 $134K
CIBC Asset Management Inc 0.00% Reduce -2.6% 13,127 $130K
Xponance LLC 0.00% Add +16.7% 12,833 $127K
Anson Capital, Inc. 0.09% Reduce -2.4% 12,738 $126K
Corient Private Wealth LP 0.00% Reduce -42.7% 12,709 $126K
CSS LLC 0.02% Reduce -7.7% 12,000 $119K
Aaron Wealth Advisors LLC 0.01% No change 11,842 $117K
LPL Financial LLC 0.00% Reduce -9.2% 11,722 $116K
Ameritas Investment Partners, Inc. 0.00% No change 11,624 $115K
Worth Asset Management, LLC 0.04% Add +0.2% 11,595 $115K
Stifel Financial Corp. 0.00% Reduce -6.6% 11,355 $112K
Marshall Wace, LLP 0.00% New 11,200 $111K
Neuberger Berman Group LLC 0.00% New 11,186 $111K
Vanguard Personalized Indexing Management, LLC 0.00% New 10,684 $106K
Guinness Atkinson Asset Management Inc 0.05% Add +8.1% 10,556 $104K
Tower Research Capital LLC (TRC) 0.00% Reduce -44.1% 10,507 $104K
State of Wyoming 0.01% Add +357.7% 10,449 $103K
Aigen Investment Management, LP 0.03% Reduce -61.0% 10,442 $103K
Crossmark Global Holdings, Inc. 0.00% No change 10,392 $103K
Swiss Life Asset Management Ltd 0.00% New 10,162 $101K
Mackenzie Financial Corp. 0.00% Reduce -50.5% 10,124 $100K
DNB Asset Management AS 0.00% New 10,093 $100K
Caldwell Sutter Capital, Inc. 0.04% No change 10,000 $99K
Group One Trading LLC 0.00% New 9,712 $96K
Cwm, LLC 0.00% Reduce -11.5% 9,590 $95K
Royal Bank of Canada 0.00% Add +14.0% 7,972 $79K
Parkside Financial Bank & Trust 0.01% Add +3920.1% 6,794 $67K
Steward Partners Investment Advisory, LLC 0.00% Add +160.7% 6,072 $60K
Public Employees Retirement System of Ohio 0.00% Add +3.2% 4,385 $43K
Versant Capital Management, Inc 0.00% Add +157.7% 4,205 $42K
Arax Advisory Partners 0.00% Add +8.2% 4,022 $40K
STRS Ohio 0.00% Reduce -28.3% 3,800 $38K
Sterling Capital Management LLC 0.00% Reduce -41.9% 3,734 $37K
Sunbelt Securities, Inc. 0.00% No change 3,732 $37K
GAMMA Investing LLC 0.00% Add +83.0% 3,544 $35K
Farther Finance Advisors, LLC 0.00% Reduce -27.8% 3,129 $29K
Osaic Holdings, Inc. 0.00% Reduce -13.4% 2,502 $25K
AdvisorNet Financial, Inc 0.00% Add +7.8% 2,149 $21K
Private Wealth Asset Management, LLC 0.00% No change 2,135 $21K
Hantz Financial Services, Inc. 0.00% Add +27.2% 2,169 $21K
Smartleaf Asset Management LLC 0.00% Reduce -52.1% 2,080 $20K
Founders Capital Management 0.01% No change 2,000 $20K
MassMutual Private Wealth & Trust, FSB 0.00% Add +28.9% 1,636 $16K
Signaturefd, LLC 0.00% No change 1,315 $13K
Salomon & Ludwin, LLC 0.00% Add +37.7% 1,347 $13K
Prestige Wealth Management Group LLC 0.00% No change 1,234 $12K
US Bancorp \de 0.00% No change 1,218 $12K
Quadrant Capital Group LLC 0.00% Add +32.2% 1,133 $11K
Parallel Advisors, LLC 0.00% Add +110400.0% 1,105 $11K
Wilmington Savings Fund Society, FSB 0.00% Reduce -18.2% 1,080 $11K
Summit Securities Group LLC 0.00% New 873 $9K
Basecamp Wealth Advisors LLC 0.00% Reduce -17.5% 857 $8K
Allworth Financial LP 0.00% Add +8.1% 764 $8K
SBI Securities Co., Ltd. 0.00% Add +0.4% 719 $7K
UMB Bank, n.a. 0.00% Add +4.2% 596 $6K
Owl Creek Wealth Partners LLC 0.00% — 554 $5K
Pinnacle Wealth Planning Services, Inc. 0.00% Add +17.9% 521 $5K
Centerpoint Advisors, LLC 0.00% No change 500 $5K
Bessemer Group Inc. 0.00% No change 501 $5K
Kilter Group LLC 0.00% New 480 $5K
Hilton Head Capital Partners, LLC 0.00% Reduce -39.8% 464 $5K
Sound Income Strategies, LLC 0.00% No change 442 $4K
Stone House Investment Management, LLC 0.00% New 285 $3K
Valued Wealth Advisors LLC 0.00% New 271 $3K
Rothschild Investment LLC 0.00% Add +38.4% 220 $2K
Private Wealth Management Group, LLC 0.00% Reduce -23.2% 218 $2K
Jones Financial Companies LLLP 0.00% Add +85.8% 210 $2K
Root Financial Partners, LLC 0.00% New 207 $2K
Byrne Asset Management LLC 0.00% No change 200 $2K
Rockefeller Capital Management L.P. 0.00% Reduce -12.6% 167 $2K
Larson Financial Group LLC 0.00% Add +137.5% 152 $2K
Picton Mahoney Asset Management 0.00% No change 119 $1K
Physician Wealth Advisors, Inc. 0.00% No change 115 $1K
Ares Financial Consulting, LLC 0.00% No change 119 $1K
Optiver Holding B.V. 0.00% Reduce -84.0% 107 $1K
Farmers & Merchants Investments Inc. 0.00% No change 101 $999
Keating Financial Advisory Services, Inc. 0.00% New 97 $959
Harbor Investment Advisory, LLC 0.00% No change 87 $860
EverSource Wealth Advisors, LLC 0.00% Add +108.3% 75 $742
True Wealth Design, LLC 0.00% No change 73 $722
Bruce G. Allen Investments, LLC 0.00% New 67 $663
Essential Partners LLC 0.00% No change 61 $603
Harbour Investments, Inc. 0.00% New 50 $495
Country Trust Bank 0.00% No change 43 $425
Cedar Mountain Advisors, LLC 0.00% No change 28 $277
JPL Wealth Management, LLC 0.00% New 25 $248
MAI Capital Management 0.00% Add +100.0% 24 $238
Gilpin Wealth Management, LLC 0.00% Add +250.0% 21 $208
Ankerstar Wealth, LLC 0.00% No change 19 $188
IFP Advisors, Inc 0.00% No change 9 $89
Annis Gardner Whiting Capital Advisors, LLC 0.00% No change 6 $60
Leonteq Securities AG 0.00% No change 3 $30
Twin Peaks Wealth Advisors, LLC 0.00% New 2 $20
Dunhill Financial, LLC 0.00% No change 1 $13
Covestor Ltd 0.00% Reduce -53.5% 47 $0
Coston, McIsaac & Partners 0.00% No change 30 $0

"% of holder's portfolio" is HOS's weight in each manager's 13F, not the share of Hornbeck Offshore Services I the manager owns.