11 institutions reported holding $746,875 of ACCELLERON (ACLLY) in SEC 13F filings for 2026-06-30. Largest institutional holders: RHUMBLINE ADVISERS ($500,236), Front Row Advisors LLC ($189,464), Firsthand Capital Management, Inc. ($35,529), THOMPSON INVESTMENT MANAGEMENT, INC. ($7,106), Main Street Group, LTD ($3,553). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | RHUMBLINE ADVISERS | $500,236 | 4,928 | Trimmed |
| 2 | Front Row Advisors LLC | $189,464 | 2,065 | Trimmed |
| 3 | Firsthand Capital Management, Inc. | $35,529 | 350 | Hold |
| 4 | THOMPSON INVESTMENT MANAGEMENT, INC. | $7,106 | 70 | Hold |
| 5 | Main Street Group, LTD | $3,553 | 35 | Hold |
| 6 | Salomon & Ludwin, LLC | $2,821 | 28 | Hold |
| 7 | PNC Financial Services Group, Inc. | $2,538 | 25 | Hold |
| 8 | BOYD WATTERSON ASSET MANAGEMENT LLC/OH | $2,469 | 24 | Hold |
| 9 | GAMMA Investing LLC | $2,030 | 20 | Added |
| 10 | WELLINGTON-ALTUS USA INC. | $621 | 7 | Hold |
| 11 | COMPASS FINANCIAL MANAGEMENT LLC | $508 | 5 | New |
来源：SEC 13F 申报文件 · 截至 2026-06-30