Boston Part L/S Research-InsBPIRX
13F holders, Q3 2025 (September 30)4holders −1
0new positions
0sold out
$15.29avg. 13F price*
At the end of Q3 2025, 4 institutions reported holding Boston Part L/S Research-Ins (BPIRX) in their 13F filings, down 1 from Q2 2025. 0 opened new positions and 0 sold out. The largest holders were Broderick Brian C ($8.2M), Hemenway Trust Co LLC ($3.7M) and Somerville Kurt F ($411K).
- Company
- Boston Part L/S Research-Ins
- Filed as
- ROBECO BOSTON PARTNERS LONG SH (Q3 2025)
- CUSIP
- 74925K581
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q2 2025 → Q3 2025: 101,496 shares sold, net −101,496 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 4 holders
| Broderick Brian C | 1.56% | No change | 536,266 | $8.2M |
| Hemenway Trust Co LLC | 0.28% | Reduce -29.7% | 240,599 | $3.7M |
| Somerville Kurt F | 0.07% | No change | 26,891 | $411K |
| Dempze Nancy E | 0.11% | No change | 12,962 | $198K |
"% 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.