13D/G large-stake feed

Latest 13D/G Reports

Since 06 May 2026. Review filer CIK, subject security, ownership %, and SEC evidence first.

Recent 13D/G signals

Large-stake disclosures to inspect

Start with holder, issuer/security, stake size, and SEC evidence.

13G/A

Venrock Healthcare Capital Partners III, L.P. stake in Tenax Therapeutics, Inc.

Holder CIK 0001738048

13G/A TENX
CIK
0001738048
Issuer
TENAX THERAPEUTICS, INC.
Security
TENX
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
9.9% / 1,955,105 shares
Filed
15 May 2026, 16:31:31 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

13G

Sachem Head Capital Management LP stake in Sotera Health Co

Holder CIK 0001582090

13G SHC
CIK
0001582090
Issuer
Sotera Health Co
Security
SHC
Source
SEC 13G
Action
Beneficial ownership disclosure
Magnitude
5.5% / 15,560,000 shares
Filed
15 May 2026, 16:31:18 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

13D/A

Canada Growth Fund Inc. stake in Nouveau Monde Graphite Inc.

Holder CIK 0002049820

13D/A NMG
CIK
0002049820
Issuer
Nouveau Monde Graphite Inc.
Security
NMG
Source
SEC 13D/A
Action
Beneficial ownership disclosure
Magnitude
24% / 84,134,998 shares
Filed
15 May 2026, 16:31:16 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

13G

Alyeska Investment Group, L.P. stake in PRESIDIO PRODUCTION COMPANY

Holder CIK 0001453072

13G FTW
CIK
0001453072
Issuer
PRESIDIO PRODUCTION Co
Security
FTW
Source
SEC 13G
Action
Beneficial ownership disclosure
Magnitude
9.8% / 2,717,391 shares
Filed
15 May 2026, 16:31:15 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

13G

Pentwater Capital Management LP stake in Electronic Arts Inc.

Holder CIK 0001425851

13G EA
CIK
0001425851
Issuer
ELECTRONIC ARTS INC.
Security
EA
Source
SEC 13G
Action
Beneficial ownership disclosure
Magnitude
5.1% / 12,807,500 shares
Filed
15 May 2026, 16:31:07 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

13G/A

First Trust Capital Management L.P. stake in Vendome Acquisition Corp I

Holder CIK 0001604488

13G/A VNME
CIK
0001604488
Issuer
Vendome Acquisition Corp I
Security
VNME
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
5.5% / 1,092,788 shares
Filed
15 May 2026, 16:31:04 UTC

Check whether this is a new stake, an amended position, or a material ownership change before moving to the issuer page.

Rows shown
951-1,000 of 3,997
Per page
50
Current page
20

Schedule 13D/G ownership events

Activist and large-stake radar

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

1/5

Active-intent candidates versus passive large-stake disclosures.

Largest visible stake

24%

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

13D active-intent check

active/control intent, item text, amendments

13G passive stake check

large passive holder disclosure

Stake change direction

ownership percent and share change

Issuer and owner follow-up

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.

Large-stake signal

Venrock Healthcare Capital Partners III, L.P.

Tenax Therapeutics, Inc. (TENX)

Schedule 13G/A Ownership 9.9% Filing-backed
CIK
000173804826000054
Source
SEC Schedule 13G/A
Action
Large beneficial ownership stake disclosed
Magnitude
9.9%
Filed
15 May 2026, 16:31:31 UTC
Period
31 Mar 2026

Venrock Healthcare Capital Partners III, L.P. filed Schedule 13G/A for Tenax Therapeutics, Inc. (TENX). Reported class ownership: 9.9%. Ownership change: 0%. Share change: +182%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Sachem Head Capital Management LP

Sotera Health Co (SHC)

Schedule 13G Ownership 5.5% Filing-backed
CIK
000110465926062645
Source
SEC Schedule 13G
Action
Large beneficial ownership stake disclosed
Magnitude
5.5%
Filed
15 May 2026, 16:31:18 UTC
Period
11 May 2026

Sachem Head Capital Management LP filed Schedule 13G for Sotera Health Co (SHC). Reported class ownership: 5.5%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Canada Growth Fund Inc.

Nouveau Monde Graphite Inc. (NMG)

Schedule 13D/A Ownership 24% Filing-backed
CIK
000204982026000009
Source
SEC Schedule 13D/A
Action
Potential activist/control stake disclosed
Magnitude
24%
Filed
15 May 2026, 16:31:16 UTC
Period
13 May 2026

Canada Growth Fund Inc. filed Schedule 13D/A for Nouveau Monde Graphite Inc. (NMG). Reported class ownership: 24%. Ownership change: +2.1%. Share change: +112%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Alyeska Investment Group, L.P.

PRESIDIO PRODUCTION COMPANY (FTW)

Schedule 13G Ownership 9.8% Filing-backed
CIK
000117266126002359
Source
SEC Schedule 13G
Action
Large beneficial ownership stake disclosed
Magnitude
9.8%
Filed
15 May 2026, 16:31:15 UTC
Period
31 Mar 2026

Alyeska Investment Group, L.P. filed Schedule 13G for PRESIDIO PRODUCTION COMPANY (FTW). Reported class ownership: 9.8%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Pentwater Capital Management LP

Electronic Arts Inc. (EA)

Schedule 13G Ownership 5.1% Filing-backed
CIK
000090266426002533
Source
SEC Schedule 13G
Action
Large beneficial ownership stake disclosed
Magnitude
5.1%
Filed
15 May 2026, 16:31:07 UTC
Period
31 Mar 2026

Pentwater Capital Management LP filed Schedule 13G for Electronic Arts Inc. (EA). Reported class ownership: 5.1%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

First Trust Capital Management L.P.

Vendome Acquisition Corp I (VNME)

Schedule 13G/A Ownership 5.5% Filing-backed
CIK
000160448826000076
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
5.5%
Filed
15 May 2026, 16:31:04 UTC
Period
31 Mar 2026

First Trust Capital Management L.P. filed Schedule 13G/A for Vendome Acquisition Corp I (VNME). Reported class ownership: 5.5%. Ownership change: -3.8%. Share change: -41%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Filed by Symbol Subject Shares owned Ownership % Source
Venrock Healthcare Capital Partners III, L.P. CIK 0001738048 TENX Tenax Therapeutics, Inc. 1,955,105 9.9% SEC filing
Sachem Head Capital Management LP CIK 0001582090 SHC Sotera Health Co 15,560,000 5.5% SEC filing
Canada Growth Fund Inc. CIK 0002049820 NMG Nouveau Monde Graphite Inc. 84,134,998 24% SEC filing
Alyeska Investment Group, L.P. CIK 0001453072 FTW PRESIDIO PRODUCTION COMPANY 2,717,391 9.8% SEC filing
Pentwater Capital Management LP CIK 0001425851 EA Electronic Arts Inc. 12,807,500 5.1% SEC filing
First Trust Capital Management L.P. CIK 0001604488 VNME Vendome Acquisition Corp I 1,092,788 5.5% SEC filing
Fairmount Funds Management LLC CIK 0001802528 ELVN ENLIVEN THERAPEUTICS, INC. 1,855,644 3.1% SEC filing
TENOR CAPITAL MANAGEMENT Co., L.P. CIK 0001346554 FACTU FACT II Acquisition Corp. 1,500,000 8.1% SEC filing
Lynx1 Capital Management LP CIK 0001910456 GHRS GH Research PLC 9,456,622 15% SEC filing
MMCAP International Inc. SPC CIK 0001304857 EU enCore Energy Corp. 8,874,682 4.5% SEC filing
Commodore Capital LP CIK 0001831942 ELVN Enliven Therapeutics, Inc. 4,800,940 7.7% SEC filing
Alyeska Investment Group, L.P. CIK 0001453072 DUOT DUOS TECHNOLOGIES GROUP, INC. 1,906,659 6.4% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 KRRO Korro Bio, Inc. 0 0% SEC filing
MMCAP International Inc. SPC CIK 0001304857 WSTRF Western Uranium & Vanadium Corp. 3,705,367 5% SEC filing
Venrock Healthcare Capital Partners III, L.P. CIK 0001738048 VOR VOR BIOPHARMA INC. 5,083,877 9.9% SEC filing
Carlyle Group Inc. CIK 0001527166 SARO StandardAero, Inc. 84,587,035 25% SEC filing
Carlyle Group Inc. CIK 0001527166 MDLN Medline Inc. 187,083,713 21% SEC filing
Brookfield Oaktree Holdings, LLC CIK 0001403528 BATL Battalion Oil Corporation 12,437,521 41% SEC filing
Aldabra 4 LOV Sponsor Partnership, LLC CIK 0002107769 ALOVW Aldabra 4 Liquidity Opportunity Vehicle, Inc. 7,398,750 20% SEC filing
Lynx1 Capital Management LP CIK 0001910456 STOK Stoke Therapeutics, Inc. 4,121,244 7% SEC filing
DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP CIK 0001854440 FUN Six Flags Entertainment Corporation/NEW 8,700,000 8.5% SEC filing
Nantahala Capital Partners Limited Partnership CIK 0001502725 KPRX KIORA PHARMACEUTICALS, INC. 148,736 3.4% SEC filing
RA CAPITAL MANAGEMENT, L.P. CIK 0001346824 FDMT 4D MOLECULAR THERAPEUTICS, INC. 5,105,622 9.9% SEC filing
BCPE BDF Investor, LP CIK 0002085166 BOBS Bob's Discount Furniture, Inc. 95,370,751 73% SEC filing
BCLS Fund III Investments, LP CIK 0001952107 HTFL Heartflow, Inc. 10,448,158 12% SEC filing
Cross Ocean Partners Management LP CIK 0001752226 KLXE KLX Energy Services Holdings, Inc. 745,122 3.7% SEC filing
M33 Growth I L.P. CIK 0001718621 TOI Oncology Institute, Inc. 5,002,656 4.9% SEC filing
SC US (TTGP), LTD. CIK 0001607841 LIFE Ethos Technologies Inc. 11,857,508 28% SEC filing
BLATT LAWRENCE CIK 0001242110 ALGS Aligos Therapeutics, Inc. 286,213 5.1% SEC filing
Bain Capital Life Sciences Opportunities IV, L.P. CIK 0002015553 OLMA OLEMA PHARMACEUTICALS, INC. 7,473,238 8.2% SEC filing
Bain Capital Life Sciences Fund II, L.P. CIK 0001773187 XLO Xilio Therapeutics, Inc. 664,021 10% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 TENX TENAX THERAPEUTICS, INC. 533,965 3.1% SEC filing
PACIFIC INVESTMENT MANAGEMENT CO LLC CIK 0001163368 VG Venture Global, Inc. 251,315,622 49% SEC filing
MMCAP International Inc. SPC CIK 0001304857 ARIS Aris Mining Corporation 7,815,142 3.8% SEC filing
Alyeska Investment Group, L.P. CIK 0001453072 DFLI Dragonfly Energy Holdings Corp. 750,270 6.2% SEC filing
Stoney Lonesome HF LP CIK 0002014854 HCAT Health Catalyst, Inc. 6,308,345 8.6% SEC filing
MMCAP International Inc. SPC CIK 0001304857 ASTL Algoma Steel Group Inc. 12,845,622 12% SEC filing
Coliseum Capital Management, LLC CIK 0001409751 MBC MasterBrand, Inc. 12,694,710 9.9% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 FBRX Forte Biosciences, Inc. 0 0% SEC filing
MMCAP International Inc. SPC CIK 0001304857 CRDL Cardiol Therapeutics Inc. 21,063,856 18% SEC filing
Luxor Capital Group, LP CIK 0001316580 AZ A2Z CUST2MATE SOLUTIONS CORP. 2,880,400 6.5% SEC filing
Venrock Healthcare Capital Partners III, L.P. CIK 0001738048 ZURA ZURA BIO LIMITED 9,816,384 9.9% SEC filing
MMCAP International Inc. SPC CIK 0001304857 POET POET Technologies Inc. 14,516,820 10% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 PALI PALISADE BIO, INC. 411,772 0.2% SEC filing
Novo Holdings A/S CIK 0001388325 LNZA LanzaTech Global, Inc. 158,148 1.6% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 DNTH Dianthus Therapeutics, Inc. /DE/ 643,599 1.2% SEC filing
Alyeska Investment Group, L.P. CIK 0001453072 CRML Critical Metals Corp. 10,185,416 8.1% SEC filing
Verve Capital Ltd CIK 0002088344 VOR VOR BIOPHARMA INC. 4,999,272 9.3% SEC filing
GENDELL JEFFREY L CIK 0001056581 SND Smart Sand, Inc. 3,126,915 7.3% SEC filing
Stoney Lonesome HF LP CIK 0002014854 AFCG Advanced Flower Capital Inc. 1,673,092 7.1% SEC filing
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