13D/G large-stake feed
Since 04 May 2026. Review filer CIK, subject security, ownership %, and SEC evidence first.
Recent 13D/G signals
Start with holder, issuer/security, stake size, and SEC evidence.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.
Schedule 13D/G ownership events
Stake size, change direction, reporting filer, issuer, active/passive form type, and SEC evidence.
Visible reports
6
Fresh large-stake filings promoted above the legacy table.
13D/13G mix
0/6
Active-intent candidates versus passive large-stake disclosures.
Largest visible stake
9.9%
Highest class ownership surfaced in the preview cards.
Newest evidence
15 May 2026
Use recency before treating an old large-stake story as fresh.
Signal checks
active/control intent, item text, amendments
large passive holder disclosure
ownership percent and share change
issuer, filer history, insider activity, 13F context
SEC-verifiable Schedule 13D/G path
Open the Schedule 13D/G filing, then cross-check insider and Form 13F evidence.
Alyeska Investment Group, L.P. filed Schedule 13G/A for ESS Tech, Inc. (GWH). Reported class ownership: 5.2%. Ownership change: -2%. Share change: 0%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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Venrock Healthcare Capital Partners III, L.P. filed Schedule 13G/A for Surrozen, Inc. (SRZN). Reported class ownership: 9.9%. Ownership change: 0%. Share change: +38%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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Pentwater Capital Management LP filed Schedule 13G for The GEO Group Inc. (GEO). Reported class ownership: 7.2%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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Alyeska Investment Group, L.P. filed Schedule 13G for GPGI, Inc. (GPGI). Reported class ownership: 7.4%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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Nantahala Capital Partners Limited Partnership filed Schedule 13G/A for ABEONA THERAPEUTICS INC. (ABEO). Reported class ownership: 5.8%. Ownership change: +0.73%. Share change: +27%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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RA CAPITAL MANAGEMENT, L.P. filed Schedule 13G for Atrium Therapeutics, Inc. (RNA). Reported class ownership: 5.6%. Open the SEC evidence before treating this as an activist or passive large-stake signal.
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