Bain Capital GSS InvestmentBCSS.U
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 25 institutions reported holding Bain Capital GSS Investment (BCSS.U) in their 13F filings, down 37 from Q3 2025. 4 opened new positions and 6 sold out. The largest holders were Empyrean Capital Partners, LP ($40.8M), Diameter Capital Partners LP ($20.4M) and Alberta Investment Management Corp ($16.4M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Bain Capital GSS Investment
- CUSIP
- G0R78B122
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $17.2M |
| Exits | 6 | $19.9M |
All 13F filers, Q3 2025 → Q4 2025: 1,933,969 shares bought and 4,759,554 shares sold, net −2,825,585 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 25 holders
| Empyrean Capital Partners, LP | 1.52% | No change | 3,990,000 | $40.8M |
| Diameter Capital Partners LP | 2.29% | No change | 2,000,000 | $20.4M |
| Alberta Investment Management Corp | 0.11% | New | 1,600,000 | $16.4M |
| Ghisallo Capital Management LLC | 0.46% | No change | 1,000,000 | $10.2M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | No change | 700,000 | $7.2M |
| Millennium Management | 0.01% | Reduce -62.2% | 700,000 | $7.2M |
| Toronto Dominion Bank | 0.01% | Reduce -36.8% | 537,200 | $5.5M |
| BlueCrest Capital Management Ltd | 0.19% | No change | 450,000 | $4.6M |
| HGC Investment Management Inc. | 0.87% | No change | 400,000 | $4.1M |
| LMR Partners LLP | 0.04% | No change | 300,000 | $3.1M |
| Westchester Capital Management, LLC | 0.12% | Add +900.0% | 250,000 | $2.6M |
| Jain Global LLC | 0.03% | Reduce -50.0% | 250,000 | $2.6M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -37.5% | 249,876 | $2.6M |
| Walleye Capital LLC | 0.01% | No change | 200,000 | $2.0M |
| Boothbay Fund Management, LLC | 0.02% | No change | 75,000 | $767K |
| Diametric Capital, LP | 0.16% | New | 59,585 | $609K |
| HRT Financial LP | 0.00% | Reduce -0.4% | 50,207 | $513K |
| Readystate Asset Management LP | 0.04% | Add +128.2% | 49,386 | $505K |
| Syquant Capital Sas | 0.03% | No change | 20,000 | $204K |
| Prelude Capital Management, LLC | 0.01% | New | 14,826 | $152K |
| CSS LLC | 0.02% | No change | 10,000 | $102K |
| OMERS ADMINISTRATION Corp | 0.00% | No change | 10,000 | $102K |
| UBS Group AG | 0.00% | New | 6,814 | $70K |
| Clear Street Group Inc. | 0.00% | Reduce -98.4% | 6,323 | $65K |
| Glazer Capital, LLC | 0.00% | Reduce -100.0% | 100 | $1K |
"% of holder's portfolio" is BCSS.U's weight in each manager's 13F, not the share of Bain Capital GSS Investment the manager owns.