SCHEDULE 13G Filed 2026-09-09 Event — SEC 0000905148-26-004126 →

WHITEBOX ADVISORS LLC → HORNBECK OFFSHORE SERVICES, INC. HLX

Stake: — Shares: — Class: Common Stock, par value $0.00001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

3 13D/G filings on this issuer

2 other filings besides this one

Filer Track Record

27 filings by this filer

26 other filings in the data moat

Short Interest · settle 2026-08-31

DTC 5.36

7,174,606 shares short · -0.5% vs prior

Other 13D/G Filings on HORNBECK OFFSHORE SERVICES, INC.

Filed	Form	Filer	Stake	Shares
2026-09-09	SCHEDULE 13D	ASOF HOS GP, LLC	23.70%	61,738,413	view →
2026-09-09	SCHEDULE 13G	MERCED CAPITAL, L.P.	—	—	view →

Other Filings by WHITEBOX ADVISORS LLC

Filed	Form	Issuer	Stake	Shares
2026-07-10	SCHEDULE 13G	Copper Property CTL Pass Through Trust CPPTL	—	—	view →
2026-06-26	SCHEDULE 13G	Maxeon Solar Technologies, Ltd. MAXNQ	—	—	view →
2025-01-22	SCHEDULE	Vertex Energy Inc.	—	—	view →
2023-02-21	SC	Quotient Ltd	—	—	view →
2021-11-15	SC	HYCROFT MINING HOLDING CORP HYMCW	—	—	view →
2021-09-07	SC	HYCROFT MINING HOLDING CORP HYMCW	—	—	view →
2021-05-06	SC	Garrett Motion Inc. GTX	—	—	view →
2021-03-24	SC	HYCROFT MINING HOLDING CORP HYMCW	—	—	view →
2021-03-11	SC	Garrett Motion Inc. GTX	—	—	view →
2021-01-26	SC	Garrett Motion Inc. GTX	—	—	view →
2021-01-12	SC	Garrett Motion Inc. GTX	—	—	view →
2020-11-17	SC	Garrett Motion Inc. GTX	—	—	view →
2020-11-04	SC	Garrett Motion Inc. GTX	—	—	view →
2020-10-09	SC	HYCROFT MINING HOLDING CORP HYMCW	—	—	view →
2020-04-01	SC	A. M. Castle & Co.	—	—	view →
2020-03-02	SC	A. M. Castle & Co.	—	—	view →
2020-02-20	SC	SAExploration Holdings, Inc.	—	—	view →
2020-01-29	SC	SAExploration Holdings, Inc.	—	—	view →
2019-12-20	SC	SAExploration Holdings, Inc.	—	—	view →
2019-04-03	SC	PAR PACIFIC HOLDINGS, INC. PARR	—	—	view →

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