Boston Part L/S Research-InsBPIRX
13F holders, Q1 2026 (March 31)5holders +1
1new positions
0sold out
$13.94avg. 13F price*
At the end of Q1 2026, 5 institutions reported holding Boston Part L/S Research-Ins (BPIRX) in their 13F filings, up 1 from Q4 2025. 1 opened new positions and 0 sold out. The largest holders were Broderick Brian C ($8.3M), Hemenway Trust Co LLC ($3.6M) and Somerville Kurt F ($375K).
- Company
- Boston Part L/S Research-Ins
- Filed as
- ROBECO BOSTON PARTNERS LONG SH (Q1 2026)
- CUSIP
- 74925K581
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $16K |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 17,243 shares bought, net +17,243 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 5 holders
| Broderick Brian C | 1.52% | No change | 593,224 | $8.3M |
| Hemenway Trust Co LLC | 0.29% | Add +6.7% | 256,697 | $3.6M |
| Somerville Kurt F | 0.10% | No change | 26,891 | $375K |
| Dempze Nancy E | 0.10% | No change | 12,962 | $181K |
| Financial Gravity Asset Management, Inc. | 0.00% | New | 1,145 | $16K |
"% of holder's portfolio" is BPIRX's weight in each manager's 13F, not the share of Boston Part L/S Research-Ins the manager owns.