Investor Stoney Lonesome HF LP
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Stoney Lonesome HF LP . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-09-08 13D/A ISPO / Inspirato Incorporated 669,271 669,271
2025-09-02 13D/A ISPO / Inspirato Incorporated 764,122 669,271
2025-08-14 13D/A AMPY / Amplify Energy Corp. 3,154,347 3,589,757
2025-08-14 13G/A ASTL / Algoma Steel Group Inc. 5,458,549 5,864,050
2025-08-04 13D ISPO / Inspirato Incorporated 887,859 764,122
2025-06-24 13D/A AMPY / Amplify Energy Corp. 3,004,347 3,154,347
2025-06-06 13D/A AMPY / Amplify Energy Corp. 2,700,347 3,004,347
2025-05-20 13D/A AMPY / Amplify Energy Corp. 2,830,347 2,700,347
2025-05-14 13G/A ISPO / Inspirato Incorporated 887,859 887,859
2025-04-16 13D AMPY / Amplify Energy Corp. 2,564,000 2,830,347
2025-04-10 13G ASTL / Algoma Steel Group Inc. 5,458,549
2025-02-18 13G ISPO / Inspirato Incorporated 887,859
2025-02-13 13G/A AMPY / Amplify Energy Corp. 2,564,000
2024-10-15 13G/A AMPY / Amplify Energy Corp.
2024-07-15 13G/A AMPY / Amplify Energy Corp.
2024-03-18 13G AMPY / Amplify Energy Corp.