HORNBECK OFFSHORE SERVICES, INC.

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HOS·42330P107·US·Common Stock·Energy - Oil & Gas Equipment & Services-Activist

HOS (HORNBECK OFFSHORE SERVICES, INC.) is held by 148 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($198.7M), DIMENSIONAL FUND ADVISORS LP ($79.5M), STATE STREET CORP ($62.7M). Net institutional sentiment: Mixed.

148

Holders

(11 Elite)

$1B

Total Value

62% (150)

Consensus

93 buying - 57 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)33

Insider (Form 4)58

Activist (13D/13G)57

Congressional (STOCK Act)60

Holder Quality

21

★★★★★

Elite

73

★★★★

Strong

29

★★★

Solid

67

★★

Below

10

★

Weak

Held by 148 funds

11 elite

Who's Trading

Source dates: Price Oct 9, 2026 · Insiders Sep 4, 2026 · Activists Sep 9, 2026 · Congress none

ActivistWAWHITEBOX ADVISORS LLC15.0%Sep 9, 2026

ActivistMEMerced Capital, L.P.5.3%Sep 9, 2026

ActivistAHASOF HOS GP, LLC23.7%Sep 9, 2026

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Top Holders

Top Holders (148)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	22.7M(+2.6%)	$198.7M	0.0%	-17.77%	31
DIMENSIONAL FUND ADVISORS LP	Increased	9.1M(+1.5%)	$79.5M	0.0%	-6.27%	30
STATE STREET CORP	Increased	7.2M(+7.0%)	$62.7M	0.0%	-23.28%	32
Invesco Ltd.	Increased	7M(+5.6%)	$61.5M	0.0%	+8.55%	31
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	6.4M(+2.9%)	$56.1M	0.0%	-22.60%	30
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	6.2M(+2.2%)	$54M	0.0%	-22.66%	30
AMERICAN CENTURY COMPANIES INC	Increased	5.4M(+4.8%)	$47.6M	0.0%	-15.84%	31
PRINCIPAL FINANCIAL GROUP INC	Decreased	4.3M(-6.0%)	$37.8M	0.0%	+0.76%	0
GOLDMAN SACHS GROUP INC	Increased	3.7M(+75.5%)	$32M	0.0%	-13.31%	44
GEODE CAPITAL MANAGEMENT, LLC	Increased	3.6M(+5.9%)	$31.1M	0.0%	+4.56%	31
WELLINGTON MANAGEMENT GROUP LLP	Decreased	3.4M(-13.3%)	$29.8M	0.0%	-16.91%	0
BNP Paribas Asset Management Holding S.A.	Decreased	3M(-0.6%)	$26.3M	0.0%	+3.33%	0
Boston Partners	Decreased	2.5M(-15.7%)	$22.1M	0.0%	-22.85%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	2.5M(-4.3%)	$21.7M	0.0%	+28.56%	0
MORGAN STANLEY	Increased	2.1M(+5.5%)	$18.4M	0.0%	-25.85%	30
PRUDENTIAL FINANCIAL INC	Increased	2.1M(+549.1%)	$18.3M	0.0%	-11.36%	46
NORTHERN TRUST CORP	Increased	1.8M(+5.8%)	$15.6M	0.0%	-2.31%	30
Qube Research & Technologies Ltd	Increased	1.4M(+42.2%)	$12.4M	0.0%	-6.38%	37
PANAGORA ASSET MANAGEMENT INC	Decreased	1.2M(-2.9%)	$10.8M	0.0%	+35.62%	0
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	1.1M(+97.1%)	$10M	0.0%	-7.52%	44

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HOSHORNBECK OFFSHORE SERVICES, INC.

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer