Boston Part L/S Research-InsBPIRX
13F holders, Q4 2025 (December 31)4holders
0new positions
0sold out
$14.04avg. 13F price*
At the end of Q4 2025, 4 institutions reported holding Boston Part L/S Research-Ins (BPIRX) in their 13F filings, unchanged from Q3 2025. 0 opened new positions and 0 sold out. The largest holders were Broderick Brian C ($8.3M), Hemenway Trust Co LLC ($3.4M) and Somerville Kurt F ($378K).
- Company
- Boston Part L/S Research-Ins
- Filed as
- ROBECO BOSTON PARTNERS LONG SH (Q4 2025)
- CUSIP
- 74925K581
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 56,958 shares bought, net +56,958 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 4 holders
| Broderick Brian C | 1.57% | Add +10.6% | 593,224 | $8.3M |
| Hemenway Trust Co LLC | 0.26% | No change | 240,599 | $3.4M |
| Somerville Kurt F | 0.06% | No change | 26,891 | $378K |
| Dempze Nancy E | 0.09% | No change | 12,962 | $182K |
"% 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.