13D/G large-stake feed

Latest 13D/G Reports

Since 07 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

HARRIS ASSOCIATES L P stake in Masco Corporation

Holder CIK 0000813917

13G/A MAS
CIK
0000813917
Issuer
MASCO CORP /DE/
Security
MAS
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
4.2% / 8,596,734 shares
Filed
15 May 2026, 16:18:19 UTC

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

13G/A

Point72 Asset Management, L.P. stake in Syndax Pharmaceuticals Inc

Holder CIK 0001603466

13G/A SNDX
CIK
0001603466
Issuer
Syndax Pharmaceuticals Inc
Security
SNDX
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
2.3% / 1,985,547 shares
Filed
15 May 2026, 16:18:07 UTC

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

13D

Osage University Partners III, LP stake in Mobia Medical, Inc.

Holder CIK 0001743036

13D MOBI
CIK
0001743036
Issuer
Mobia Medical, Inc.
Security
MOBI
Source
SEC 13D
Action
Beneficial ownership disclosure
Magnitude
10% / 3,410,899 shares
Filed
15 May 2026, 16:17:58 UTC

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

13G/A

BAKER BROS. ADVISORS LP stake in GRAIL, Inc.

Holder CIK 0001263508

13G/A GRAL
CIK
0001263508
Issuer
GRAIL, Inc.
Security
GRAL
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
9.8% / 4,028,614 shares
Filed
15 May 2026, 16:17:57 UTC

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

13G/A

L.I.A. Pure Capital Ltd stake in Quantum X Labs Inc. (formerly known as Viewbix Inc.)

Holder CIK 0001749628

13G/A VBIX
CIK
0001749628
Issuer
QUANTUM X LABS INC.
Security
VBIX
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
10% / 1,332,366 shares
Filed
15 May 2026, 16:17:52 UTC

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

13G/A

BAKER BROS. ADVISORS LP stake in KALA BIO, Inc.

Holder CIK 0001263508

13G/A KALA
CIK
0001263508
Issuer
KALA BIO, Inc.
Security
KALA
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
0.01% / 2,312 shares
Filed
15 May 2026, 16:17:46 UTC

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

Rows shown
1,201-1,250 of 3,765
Per page
50
Current page
25

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

10%

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

HARRIS ASSOCIATES L P

Masco Corporation (MAS)

Schedule 13G/A Ownership 4.2% Filing-backed
CIK
000081391726000035
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
4.2%
Filed
15 May 2026, 16:18:19 UTC
Period
31 Mar 2026

HARRIS ASSOCIATES L P filed Schedule 13G/A for Masco Corporation (MAS). Reported class ownership: 4.2%. Ownership change: -1.3%. Share change: -25%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Point72 Asset Management, L.P.

Syndax Pharmaceuticals Inc (SNDX)

Schedule 13G/A Ownership 2.3% Filing-backed
CIK
000091957426003472
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
2.3%
Filed
15 May 2026, 16:18:07 UTC
Period
31 Mar 2026

Point72 Asset Management, L.P. filed Schedule 13G/A for Syndax Pharmaceuticals Inc (SNDX). Reported class ownership: 2.3%. Ownership change: -2.7%. Share change: -54%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

Osage University Partners III, LP

Mobia Medical, Inc. (MOBI)

Schedule 13D Ownership 10% Filing-backed
CIK
000119312526226819
Source
SEC Schedule 13D
Action
Potential activist/control stake disclosed
Magnitude
10%
Filed
15 May 2026, 16:17:58 UTC
Period
11 May 2026

Osage University Partners III, LP filed Schedule 13D for Mobia Medical, Inc. (MOBI). Reported class ownership: 10%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

BAKER BROS. ADVISORS LP

GRAIL, Inc. (GRAL)

Schedule 13G/A Ownership 9.8% Filing-backed
CIK
000110465926062585
Source
SEC Schedule 13G/A
Action
Large stake increase disclosed
Magnitude
9.8%
Filed
15 May 2026, 16:17:57 UTC
Period
31 Mar 2026

BAKER BROS. ADVISORS LP filed Schedule 13G/A for GRAIL, Inc. (GRAL). Reported class ownership: 9.8%. Ownership change: +4.5%. Share change: +93%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

L.I.A. Pure Capital Ltd

Quantum X Labs Inc. (formerly known as Viewbix Inc.) (VBIX)

Schedule 13G/A Ownership 10% Filing-backed
CIK
000121390026057806
Source
SEC Schedule 13G/A
Action
Large beneficial ownership stake disclosed
Magnitude
10%
Filed
15 May 2026, 16:17:52 UTC
Period
31 Mar 2026

L.I.A. Pure Capital Ltd filed Schedule 13G/A for Quantum X Labs Inc. (formerly known as Viewbix Inc.) (VBIX). Reported class ownership: 10%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

BAKER BROS. ADVISORS LP

KALA BIO, Inc. (KALA)

Schedule 13G/A Ownership 0.01% Filing-backed
CIK
000110465926062584
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
0.01%
Filed
15 May 2026, 16:17:46 UTC
Period
31 Mar 2026

BAKER BROS. ADVISORS LP filed Schedule 13G/A for KALA BIO, Inc. (KALA). Reported class ownership: 0.01%. Ownership change: -10%. Share change: -100%. 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
HARRIS ASSOCIATES L P CIK 0000813917 MAS Masco Corporation 8,596,734 4.2% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 SNDX Syndax Pharmaceuticals Inc 1,985,547 2.3% SEC filing
Osage University Partners III, LP CIK 0001743036 MOBI Mobia Medical, Inc. 3,410,899 10% SEC filing
BAKER BROS. ADVISORS LP CIK 0001263508 GRAL GRAIL, Inc. 4,028,614 9.8% SEC filing
L.I.A. Pure Capital Ltd CIK 0001749628 VBIX Quantum X Labs Inc. (formerly known as Viewbix Inc.) 1,332,366 10% SEC filing
BAKER BROS. ADVISORS LP CIK 0001263508 KALA KALA BIO, Inc. 2,312 0.01% SEC filing
ERGEN CHARLES W CIK 0000904548 SATS EchoStar CORP 148,681,314 51% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 PTNT PALATIN TECHNOLOGIES INC 8,600 0.5% SEC filing
BAKER BROS. ADVISORS LP CIK 0001263508 PRAX Praxis Precision Medicines, Inc. 1,753,198 6.3% SEC filing
L.I.A. Pure Capital Ltd CIK 0001749628 JFBR Nexera Technologies Ltd. (formerly known as Jeffs' Brands Ltd.) 0 0% SEC filing
Greycroft Partners II, L.P. CIK 0001484529 MNTN MNTN, Inc. 3,911,969 6.4% SEC filing
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 0001164833 FFIV F5, INC. 4,579,301 8.1% SEC filing
Invest Pro Shukai Hon Ltd. CIK 0002110772 JFBR Nexera Technologies Ltd. (formerly known as Jeffs' Brands Ltd.) 0 0% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 ORIC Oric Pharmaceuticals, Inc. 0 0% SEC filing
Millstreet Capital Management LLC CIK 0001590729 CPS Cooper-Standard Holdings Inc. 0 0% SEC filing
Atreides Management, LP CIK 0001777813 ACVA ACV Auctions Inc. 9,743,496 5.6% SEC filing
L.I.A. Pure Capital Ltd CIK 0001749628 SPRC SciSparc Ltd. 0 0% SEC filing
Redmile Group, LLC CIK 0001425738 SRRK Scholar Rock Holding Corporation 9,066,621 7.6% SEC filing
Alta Fox Opportunities Fund, LP CIK 0001734916 XPEL XPEL, Inc. 1,924,258 7% SEC filing
Jain Global LLC CIK 0002024579 DMRA Damora Therapeutics, Inc. 0 0% SEC filing
L.I.A. Pure Capital Ltd CIK 0001749628 MTEK Maris-Tech Ltd. 484,321 5% SEC filing
Oasis Management Co Ltd. CIK 0001317904 MTN VAIL RESORTS INC 2,808,396 7.9% SEC filing
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 0001164833 NCMI National CineMedia, Inc. 7,897,853 8.5% SEC filing
Redmile Group, LLC CIK 0001425738 STOK Stoke Therapeutics, Inc. 4,164,120 6.7% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 BRCB Black Rock Coffee Bar, Inc. 755,707 4.3% SEC filing
Redmile Group, LLC CIK 0001425738 IMNM Immunome, Inc. 5,558,885 4.9% SEC filing
DISCIPLINED GROWTH INVESTORS INC /MN CIK 0001050442 GEOS GEOSPACE TECHNOLOGIES CORP 1,101,426 8.5% SEC filing
Schonfeld Strategic Advisors LLC CIK 0001665241 CDNL Cardinal Infrastructure Group Inc. 439,707 2.9% SEC filing
Point72 Asset Management, L.P. CIK 0001603466 PRAX Praxis Precision Medicines, Inc. 0 0% SEC filing
Redmile Group, LLC CIK 0001425738 ALXO ALX Oncology Holdings Inc. 9,214,188 6.8% SEC filing
Select Equity Group, L.P. CIK 0001592643 MIDD MIDDLEBY CORP 1,500,535 3.3% SEC filing
L.I.A. Pure Capital Ltd CIK 0001749628 CMND Clearmind Medicine Inc. 0 0% SEC filing
J. Goldman & Co LP CIK 0001412741 DSACU Daedalus Special Acquisition Corp. 1,250,000 4.9% SEC filing
Graham Holdings Co CIK 0000104889 PUBM PubMatic, Inc. 3,398,904 8.9% SEC filing
PLATINUM EQUITY, LLC CIK 0001228754 INGM Ingram Micro Holding Corp 197,104,541 85% SEC filing
MARATHON ASSET MANAGEMENT LP CIK 0001279913 EAF GRAFTECH INTERNATIONAL LTD 1,211,615 4.7% SEC filing
MARATHON ASSET MANAGEMENT LP CIK 0001279913 MNKTQ Keenova Therapeutics plc 2,710,229 6.8% SEC filing
Trails Edge Capital Partners, LP CIK 0002077247 IKT Inhibikase Therapeutics, Inc. 8,057,345 6.1% SEC filing
Newtyn Management, LLC CIK 0001569241 MAGN Magnera Corporation 2,760,000 7.7% SEC filing
Newtyn Management, LLC CIK 0001569241 PAR Par Technology Corporation 2,732,696 6.6% SEC filing
SOUTHEASTERN ASSET MANAGEMENT INC/TN/ CIK 0000807985 GLIBK GCI Liberty, Inc. 1,321,110 3.7% SEC filing
Capitalink Ltd. CIK 0002036836 JFBR Nexera Technologies Ltd 0 0% SEC filing
Capitalink Ltd. CIK 0002036836 VBIX QUANTUM X LABS INC. 667,034 5% SEC filing
Capitalink Ltd. CIK 0002036836 CMND Clearmind Medicine Inc. 0 0% SEC filing
TANG CAPITAL MANAGEMENT LLC CIK 0001232621 CBIO Crescent Biopharma, Inc. 1,160,000 4.2% SEC filing
TANG CAPITAL MANAGEMENT LLC CIK 0001232621 ALT Altimmune, Inc. 666,022 0.3% SEC filing
Lind Global Fund III LP CIK 0002071860 ENVB Enveric Biosciences, Inc. 161,232 7.9% SEC filing
Decheng Capital Global Life Sciences Fund IV, L.P. CIK 0001834150 UPB Upstream Bio, Inc. 2,724,868 5% SEC filing
Daniel Nissim CIK 0002092834 VBIX QUANTUM X LABS INC. 1,179,230 8.6% SEC filing
PROPPER KERRY CIK 0001282327 RDAC Rising Dragon Acquisition Corp. 137,000 2.3% SEC filing
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