Wellington Management Group LLP

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

Total Filings

754

Stocks Covered

340

Latest Filing

Mar 5, 2026

Filings

ImmunoGen, Inc.

SC 13G/A · Jan 10, 2022

6.3%

13.9M shares

Sterling Bancorp

SC 13G/A · Jan 10, 2022

2.4%

4.6M shares

Performance Food Group Company

SC 13G/A · Jan 10, 2022

7.7%

11.9M shares

Sprinklr, Inc.

SC 13G/A · Jan 10, 2022

2.6%

2.6M shares