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Wellington Management Group LLP

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

754

Stocks Covered

340

Latest Filing

Mar 5, 2026

Filings

James Hardie Industries plc

SC 13G · Oct 6, 2025

10.1%

58.4M shares

N/A

Autolus Therapeutics plc

SC 13G/A · Oct 6, 2025

0.0%

0 shares

MNTN, Inc.

SC 13G/A · Sep 8, 2025

11.8%

5.2M shares

Ameresco, Inc.

SC 13G/A · Sep 8, 2025

11.1%

3.9M shares

Fiverr International Ltd.

SC 13G/A · Sep 8, 2025

3.3%

1.2M shares

ICHOR HOLDINGS, LTD.

SC 13G · Aug 12, 2025

5.4%

1.8M shares

Structure Therapeutics Inc.

SC 13G/A · Aug 12, 2025

12.0%

20.6M shares

IDEX Corporation

SC 13G/A · Aug 12, 2025

8.3%

6.3M shares

Celldex Therapeutics, Inc.

SC 13G/A · Aug 12, 2025

7.9%

5.2M shares

Methanex Corporation

SC 13G/A · Aug 12, 2025

0.3%

225K shares

Option Care Health, Inc.

SC 13G/A · Aug 12, 2025

8.1%

13.3M shares

MBX Biosciences, Inc.

SC 13G/A · Aug 12, 2025

6.8%

2.3M shares

Acadia Healthcare Company, Inc.

SC 13G/A · Aug 12, 2025

9.2%

8.4M shares

Belden Inc.

SC 13G/A · Aug 12, 2025

4.3%

1.7M shares

TRUPANION, INC.

SC 13G/A · Aug 12, 2025

4.8%

2.0M shares

Shoals Technologies Group, Inc.

SC 13G/A · Aug 12, 2025

10.4%

17.4M shares

The NASDAQ OMX Group, Inc.

SC 13G/A · Aug 12, 2025

7.2%

41.2M shares

Tradeweb Markets Inc.

SC 13G/A · Aug 12, 2025

5.9%

6.9M shares

N/A

Territorial Bancorp Inc.

SC 13G/A · Aug 12, 2025

0.0%

0 shares

Gentex Corporation

SC 13G/A · Aug 12, 2025

6.0%

13.4M shares

Haemonetics Corporation

SC 13G/A · Aug 12, 2025

4.6%

2.2M shares

PPG Industries, Inc.

SC 13G · Aug 12, 2025

5.6%

12.6M shares

Guardian Pharmacy Services, Inc.

SC 13G/A · Aug 12, 2025

4.9%

1.1M shares

Heritage Commerce Corp

SC 13G/A · Aug 12, 2025

4.9%

3.0M shares

Tractor Supply Company

SC 13G/A · Aug 12, 2025

4.8%

25.5M shares

PRA Group, Inc.

SC 13G/A · Aug 12, 2025

2.5%

1.0M shares

NXP Semiconductors N.V.

SC 13G/A · Aug 12, 2025

4.5%

11.2M shares

N/A

ZAI LAB LTD. - SB

SC 13G/A · Aug 12, 2025

4.5%

50.1M shares

Avery Dennison Corporation

SC 13G · Aug 12, 2025

6.6%

5.2M shares

Regions Financial Corporation

SC 13G · Aug 12, 2025

5.1%

46.0M shares

Akero Therapeutics, Inc.

SC 13G/A · Aug 12, 2025

4.3%

3.4M shares

Apellis Pharmaceuticals, Inc.

SC 13G/A · Aug 12, 2025

7.2%

9.0M shares

Immatics N.V.

SC 13G/A · Aug 12, 2025

4.4%

5.3M shares

Merus N.V.

SC 13G/A · Aug 12, 2025

5.0%

3.7M shares

Xenon Pharmaceuticals Inc.

SC 13G/A · Aug 12, 2025

2.8%

2.2M shares

National Bank Holdings Corporation

SC 13G/A · Aug 12, 2025

6.5%

2.5M shares

Ionis Pharmaceuticals, Inc.

SC 13G/A · Aug 12, 2025

4.3%

6.9M shares

YETI Holdings, Inc.

SC 13G · Aug 12, 2025

5.9%

4.9M shares

Shake Shack Inc.

SC 13G/A · Aug 12, 2025

4.9%

2.0M shares

Fiverr International Ltd.

SC 13G/A · Aug 12, 2025

9.6%

3.4M shares

DXP Enterprises, Inc.

SC 13G/A · Aug 12, 2025

7.0%

1.1M shares

Dime Community Bancshares, Inc.

SC 13G · Aug 12, 2025

5.9%

2.6M shares

LendingClub Corporation

SC 13G · Aug 12, 2025

5.9%

6.7M shares

Ameresco, Inc.

SC 13G · Aug 12, 2025

5.1%

1.8M shares

Knight-Swift Transportation Holdings Inc.

SC 13G/A · Aug 12, 2025

8.7%

14.0M shares

Disc Medicine, Inc.

SC 13G/A · Aug 12, 2025

4.1%

1.4M shares

Steven Madden, Ltd.

SC 13G/A · Aug 12, 2025

4.0%

2.9M shares

Weyerhaeuser Company

SC 13G · Aug 12, 2025

5.1%

37.3M shares

The Simply Good Foods Company

SC 13G · Aug 12, 2025

5.3%

5.3M shares

US FOODS HOLDING CORP.

SC 13G/A · Aug 12, 2025

4.9%

11.3M shares