13D/G large-stake feed

Latest 13D/G Reports

Since 04 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

VIKING GLOBAL INVESTORS LP stake in PepGen Inc.

Holder CIK 0001103804

13G/A PEPG
CIK
0001103804
Issuer
PepGen Inc.
Security
PEPG
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
5% / 3,482,434 shares
Filed
15 May 2026, 17:48:36 UTC

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

13G/A

VIKING GLOBAL INVESTORS LP stake in Veradermics, Inc

Holder CIK 0001103804

13G/A MANE
CIK
0001103804
Issuer
Veradermics, Inc
Security
MANE
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
4.5% / 1,690,555 shares
Filed
15 May 2026, 17:48:36 UTC

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

13G/A

VIKING GLOBAL INVESTORS LP stake in Adaptive Biotechnologies Corp

Holder CIK 0001103804

13G/A ADPT
CIK
0001103804
Issuer
Adaptive Biotechnologies Corp
Security
ADPT
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
19% / 29,993,708 shares
Filed
15 May 2026, 17:48:36 UTC

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

13G/A

VIKING GLOBAL INVESTORS LP stake in Sionna Therapeutics, Inc.

Holder CIK 0001103804

13G/A SION
CIK
0001103804
Issuer
Sionna Therapeutics, Inc.
Security
SION
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
7.1% / 3,195,181 shares
Filed
15 May 2026, 17:48:36 UTC

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

13G/A

VIKING GLOBAL INVESTORS LP stake in Oric Pharmaceuticals, Inc.

Holder CIK 0001103804

13G/A ORIC
CIK
0001103804
Issuer
Oric Pharmaceuticals, Inc.
Security
ORIC
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
7.8% / 8,264,607 shares
Filed
15 May 2026, 17:48:36 UTC

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

13G/A

VIKING GLOBAL INVESTORS LP stake in TIC Solutions, Inc.

Holder CIK 0001103804

13G/A CUSIP G0093S109
CIK
0001103804
Issuer
TIC Solutions, Inc.
Security
CUSIP G0093S109
Source
SEC 13G/A
Action
Beneficial ownership disclosure
Magnitude
16% / 35,824,562 shares
Filed
15 May 2026, 17:48:36 UTC

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

Rows shown
551-600 of 3,993
Per page
50
Current page
12

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

0/6

Active-intent candidates versus passive large-stake disclosures.

Largest visible stake

19%

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

VIKING GLOBAL INVESTORS LP

PepGen Inc. (PEPG)

Schedule 13G/A Ownership 5% Filing-backed
CIK
000090514826002435
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
5%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for PepGen Inc. (PEPG). Reported class ownership: 5%. Ownership change: -0.07%. Share change: 0%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

VIKING GLOBAL INVESTORS LP

Veradermics, Inc (MANE)

Schedule 13G/A Ownership 4.5% Filing-backed
CIK
000090514826002434
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
4.5%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for Veradermics, Inc (MANE). Reported class ownership: 4.5%. Ownership change: -1.3%. Share change: -21%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

VIKING GLOBAL INVESTORS LP

Adaptive Biotechnologies Corp (ADPT)

Schedule 13G/A Ownership 19% Filing-backed
CIK
000090514826002432
Source
SEC Schedule 13G/A
Action
Large beneficial ownership stake disclosed
Magnitude
19%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for Adaptive Biotechnologies Corp (ADPT). Reported class ownership: 19%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

Create an account from this card and we will save this large-stake filer to your watchlist after sign-in or verification.

Large-stake signal

VIKING GLOBAL INVESTORS LP

Sionna Therapeutics, Inc. (SION)

Schedule 13G/A Ownership 7.1% Filing-backed
CIK
000090514826002431
Source
SEC Schedule 13G/A
Action
Large stake increase disclosed
Magnitude
7.1%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for Sionna Therapeutics, Inc. (SION). Reported class ownership: 7.1%. Ownership change: +0.4%. Share change: +8.2%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

VIKING GLOBAL INVESTORS LP

Oric Pharmaceuticals, Inc. (ORIC)

Schedule 13G/A Ownership 7.8% Filing-backed
CIK
000090514826002430
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
7.8%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for Oric Pharmaceuticals, Inc. (ORIC). Reported class ownership: 7.8%. Ownership change: -2.2%. Share change: -5.3%. Open the SEC evidence before treating this as an activist or passive large-stake signal.

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Large-stake signal

VIKING GLOBAL INVESTORS LP

TIC Solutions, Inc.

Schedule 13G/A Ownership 16% Filing-backed
CIK
000090514826002429
Source
SEC Schedule 13G/A
Action
Large stake reduction disclosed
Magnitude
16%
Filed
15 May 2026, 17:48:36 UTC
Period
31 Mar 2026

VIKING GLOBAL INVESTORS LP filed Schedule 13G/A for TIC Solutions, Inc.. Reported class ownership: 16%. Ownership change: -12%. Share change: +4.3%. 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
VIKING GLOBAL INVESTORS LP CIK 0001103804 PEPG PepGen Inc. 3,482,434 5% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 MANE Veradermics, Inc 1,690,555 4.5% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 ADPT Adaptive Biotechnologies Corp 29,993,708 19% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 SION Sionna Therapeutics, Inc. 3,195,181 7.1% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 ORIC Oric Pharmaceuticals, Inc. 8,264,607 7.8% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 CUSIP G0093S109 TIC Solutions, Inc. 35,824,562 16% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 LAB STANDARD BIOTOOLS INC. 58,651,170 15% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 FTV Fortive Corp 22,479,388 7.1% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 RLYB Rallybio Corporation 528,954 10% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 CHWY Chewy, Inc. 0 0% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 DNA Ginkgo Bioworks Holdings, Inc. 3,577,128 7.1% SEC filing
VIKING GLOBAL INVESTORS LP CIK 0001103804 PHVS Pharvaris N.V. 3,653,310 5.6% SEC filing
Nut Tree Capital Management, LP CIK 0001661655 TSE Trinseo PLC 3,027,280 8.3% SEC filing
Two Seas Capital LP CIK 0001823138 PAVM PAVmed Inc. 657,219 10% SEC filing
ORION RESOURCE PARTNERS (USA) LP CIK 0001714217 IAUX i-80 Gold Corp. 21,787,281 2.6% SEC filing
Tompkins Mark N. CIK 0001455971 ALMU Aeluma, Inc. 885,000 4.8% SEC filing
Anchorage Capital Group, L.L.C. CIK 0001300714 EQPT EquipmentShare.com Inc 17,770,560 8.3% SEC filing
Pomeroy Scott CIK 0001297880 XTIA XTI Aerospace, Inc. 2,407,199 6.3% SEC filing
Spark Capital II LP CIK 0001407645 ETOR eToro Group Ltd. 3,584,394 5.4% SEC filing
MORGAN STANLEY CIK 0000895421 FTW PRESIDIO PRODUCTION COMPANY 1,717,391 6.2% SEC filing
Two Seas Capital LP CIK 0001823138 ABUS Arbutus Biopharma Corporation 18,557,543 9.4% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 XPER Xperi Inc 0 0% SEC filing
Polar Capital Holdings Plc CIK 0001837309 ELVN ENLIVEN THERAPEUTICS, INC. 5,056,807 8.5% SEC filing
Stonepine Capital Management, LLC CIK 0001440771 TENX Tenax Therapeutics, Inc. 975,200 3.7% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 SBFG SB Financial Group, Inc. 0 0% SEC filing
NOMURA ASSET MANAGEMENT CO LTD CIK 0001055964 CUSIP 00840T100 TPG Twin Brook Capital Income Fund 6,268,786 6.1% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 RVSB Riverview Bancorp, Inc. 0 0% SEC filing
Extract Advisors LLC CIK 0001703148 NEXM NexMetals Mining Corp. 2,841,922 7.6% SEC filing
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP CIK 0001595082 MNTS Momentus Inc. 0 0% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 MBLY Mobileye Global Inc. 0 0% SEC filing
K2 HealthVentures Equity Trust LLC CIK 0001948604 NMRA Neumora Therapeutics, Inc. 5,790,453 3.1% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 LARK Landmark Bancorp, Inc. 0 0% SEC filing
Tompkins Mark N. CIK 0001455971 CUSIP NOTAPPLICABL Deep Isolation Nuclear, Inc. 3,150,000 5.5% SEC filing
Stonepine Capital Management, LLC CIK 0001440771 EDSA Edesa Biotech, Inc. 30,000 0.3% SEC filing
Extract Advisors LLC CIK 0001703148 NEXM NexMetals Mining Corp. 1,971,622 5.4% SEC filing
Winklevoss Capital Fund, LLC CIK 0002085726 EMPD Empery Digital Inc. 2,228,351 7.9% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 CZWI First Watch Restaurant Group, Inc. 0 0% SEC filing
MAK Capital Fund LP CIK 0001426156 CLPT ClearPoint Neuro, Inc. 1,901,489 6.3% SEC filing
Ensorcia Metals Corp CIK 0002134357 CUSIP 459121109 International Battery Metals Ltd. 18,568,831 5.4% SEC filing
Schlacks Jabbok CIK 0002091677 EQPT EquipmentShare.com Inc 34,778,852 15% SEC filing
QVT Financial LP CIK 0001290162 CMTL Comtech Telecommunications Corp. 1,694,467 5.7% SEC filing
Stonepine Capital Management, LLC CIK 0001440771 CNSP CNS Pharmaceuticals, Inc. 159,790 9.9% SEC filing
BERKSHIRE HATHAWAY INC CIK 0001067983 LILA LIBERTY LATIN AMERICA LTD 0 0% SEC filing
Vestal Point Capital, LP CIK 0001974915 TSHA Taysha Gene Therapies, Inc. 18,000,000 6.3% SEC filing
MANULIFE FINANCIAL CORP CIK 0001086888 EBMT Eagle Bancorp Montana, Inc. 0 0% SEC filing
Seven Fleet Capital Management LP CIK 0002092021 CTMX CytomX Therapeutics, Inc. 1,085,398 0.5% SEC filing
Khrom Investments Fund, LP CIK 0001586094 ACHC Acadia Healthcare Company, Inc. 5,201,533 5.7% SEC filing
Maple Rock Capital Partners Inc. CIK 0001658363 ASTL Algoma Steel Group Inc. 15,930,818 15% SEC filing
Vestal Point Capital, LP CIK 0001974915 BCAX Bicara Therapeutics Inc. 5,425,000 8.3% SEC filing
Vestal Point Capital, LP CIK 0001974915 ELVN Enliven Therapeutics, Inc. 3,250,000 5.4% SEC filing
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