Bain Capital GSS Investment Corp. - BCSS
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Empyrean Capital Partners, LP | History | No change | 3,990,000 | 40,777 | 1.42% | 1.62% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | No change | 3,000,000 | 30,240 | 0.05% | 0.05% | 2 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Fort Baker Capital Management LP | History | Added to | 2,779,646 | 28,018 | 3.06% | 2.08% | 3 | +1,476,666 | 113.33% | Q4 2025 | Feb 17, 2026 |
| Diameter Capital Partners LP | History | No change | 2,000,000 | 20,440 | 1.87% | 1.24% | 4 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Sculptor Capital LP | History | Added to | 1,723,855 | 17,376 | 0.18% | 0.18% | 5 | +223,855 | 14.92% | Q4 2025 | Feb 13, 2026 |
| Alberta Investment Management Corp | History | New | 1,600,000 | 16,352 | 0.1% | — | 6 | +1,600,000 | New | Q4 2025 | Feb 19, 2026 |
| Mercuria Capital Strategies, LLC | History | New | 1,545,878 | 15,798 | 8.97% | — | 7 | +1,545,878 | New | Q4 2025 | Feb 17, 2026 |
| MOORE CAPITAL MANAGEMENT, LP | History | No change | 1,500,000 | 15,120 | 0.22% | 0.21% | 8 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | History | Reduced | 1,400,000 | 14,112 | 0.22% | 6.16% | 9 | -350,000 | -20.0% | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 1,316,000 | 13,363 | 0.01% | 0.01% | 10 | -537,750 | -29.01% | Q4 2025 | Feb 17, 2026 |
| HighTower Advisors, LLC | History | New | 1,185,749 | 11,952 | 0.01% | — | 11 | +1,185,749 | New | Q4 2025 | Feb 06, 2026 |
| AQR Arbitrage LLC | History | Reduced | 1,184,700 | 11,941 | 0.25% | 0.38% | 12 | -315,300 | -21.02% | Q4 2025 | Feb 17, 2026 |
| METEORA CAPITAL, LLC | History | Reduced | 1,109,000 | 11,178 | 0.94% | 1.6% | 13 | -388,000 | -25.92% | Q4 2025 | Feb 17, 2026 |
| Ghisallo Capital Management LLC | History | No change | 1,000,000 | 10,220 | 0.46% | 0.33% | 14 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Polar Asset Management Partners Inc. | History | New | 1,000,000 | 10,080 | 0.13% | — | 16 | +1,000,000 | New | Q4 2025 | Feb 17, 2026 |
| ARISTEIA CAPITAL, L.L.C. | History | No change | 1,000,000 | 10,080 | 0.22% | 0.24% | 15 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| J. Goldman & Co LP | History | Added to | 1,155,001 | 9,832 | 0.26% | 0.26% | 17 | +130,001 | 12.68% | Q4 2025 | Feb 17, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 854,756 | 8,615 | 0.01% | 0.01% | 18 | +211,006 | 32.78% | Q4 2025 | Feb 17, 2026 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | History | No change | 700,000 | 7,154 | 0.01% | 0.01% | 19 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| PICTON MAHONEY ASSET MANAGEMENT | History | No change | 700,000 | 7,056 | 0.05% | 0.06% | 20 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| LINDEN ADVISORS LP | History | No change | 600,000 | 6,048 | 0.04% | 0.04% | 21 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| TORONTO DOMINION BANK | History | Reduced | 586,608 | 5,988 | 0.01% | 0.01% | 22 | -263,392 | -30.99% | Q4 2025 | Feb 17, 2026 |
| Decagon Asset Management LLP | History | Added to | 565,461 | 5,699 | 2.19% | 2.69% | 23 | +36,719 | 6.94% | Q4 2025 | Feb 17, 2026 |
| Saba Capital Management, L.P. | History | Reduced | 535,580 | 5,398 | 0.16% | 0.22% | 24 | -264,420 | -33.05% | Q4 2025 | Feb 17, 2026 |
| PERISCOPE CAPITAL INC. | History | Reduced | 525,000 | 5,292 | 0.61% | 1.1% | 25 | -161,000 | -23.47% | Q4 2025 | Feb 10, 2026 |
| Jain Global LLC | History | No change | 500,000 | 5,075 | 0.02% | 0.02% | 26 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Lighthouse Investment Partners, LLC | History | No change | 500,000 | 5,040 | 0.15% | 0.15% | 27 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Boussard & Gavaudan Investment Management LLP | History | No change | 500,000 | 5,040 | 0.38% | 0.62% | 28 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Verition Fund Management LLC | History | Added to | 493,100 | 4,970 | 0.02% | 0.02% | 29 | +93,100 | 23.28% | Q4 2025 | Feb 13, 2026 |
| Lineage Point Capital LP | History | New | 470,000 | 4,737 | 1.8% | — | 30 | +470,000 | New | Q4 2025 | Feb 26, 2026 |
| BlueCrest Capital Management Ltd | History | New | 450,000 | 4,599 | 0.14% | — | 31 | +450,000 | New | Q4 2025 | Feb 17, 2026 |
| Magnetar Financial LLC | History | No change | 450,000 | 4,536 | 0.04% | 0.03% | 32 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| HGC Investment Management Inc. | History | No change | 400,000 | 4,088 | 0.87% | 0.98% | 33 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | Reduced | 400,000 | 4,032 | 0.01% | 0.03% | 34 | -400,000 | -50.0% | Q4 2025 | Feb 13, 2026 |
| Shaolin Capital Management LLC | History | Reduced | 350,000 | 3,528 | 0.11% | 0.19% | 36 | -79,842 | -18.57% | Q4 2025 | Feb 17, 2026 |
| TENOR CAPITAL MANAGEMENT Co., L.P. | History | No change | 350,000 | 3,528 | 0.05% | 0.05% | 35 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | New | 315,300 | 3,178 | 0.0% | — | 37 | +315,300 | New | Q4 2025 | Feb 10, 2026 |
| LMR Partners LLP | History | No change | 300,000 | 3,066 | 0.01% | 0.01% | 38 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | History | No change | 300,000 | 3,024 | 0.1% | 0.13% | 39 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Bulldog Investors, LLP | History | New | 296,579 | 2,989 | 0.67% | — | 40 | +296,579 | New | Q4 2025 | Feb 13, 2026 |
| GLAZER CAPITAL, LLC | History | Reduced | 295,252 | 2,976 | 0.08% | 0.18% | 41 | -231,656 | -43.97% | Q4 2025 | Feb 13, 2026 |
| Radcliffe Capital Management, L.P. | History | Added to | 264,693 | 2,668 | 0.15% | 0.11% | 42 | +85,370 | 47.61% | Q4 2025 | Feb 17, 2026 |
| Clear Street Group Inc. | History | Reduced | 256,323 | 2,584 | 0.01% | 0.01% | 43 | -143,677 | -35.92% | Q4 2025 | Feb 13, 2026 |
| DLD Asset Management, LP | History | New | 256,045 | 2,580 | 0.19% | — | 44 | +256,045 | New | Q4 2025 | Feb 13, 2026 |
| Westchester Capital Management, LLC | History | Added to | 250,000 | 2,555 | 0.11% | 0.01% | 45 | +225,000 | 900.0% | Q4 2025 | Feb 13, 2026 |
| Schonfeld Strategic Advisors LLC | History | Reduced | 249,876 | 2,553 | 0.01% | 0.02% | 46 | -150,124 | -37.53% | Q4 2025 | Feb 17, 2026 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | Added to | 233,150 | 2,350 | 0.01% | 0.01% | 47 | +133,150 | 133.15% | Q4 2025 | Feb 10, 2026 |
| Walleye Capital LLC | History | No change | 200,000 | 2,044 | 0.01% | 0.01% | 48 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| HBK INVESTMENTS L P | History | Added to | 200,005 | 2,016 | 0.02% | 0.02% | 49 | +5 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Ilex Capital Partners (UK) LLP | History | No change | 200,000 | 2,016 | 0.06% | 0.06% | 50 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | Reduced | 175,000 | 1,764 | 0.0% | 0.0% | 51 | -363,551 | -67.51% | Q4 2025 | Feb 13, 2026 |
| Context Capital Management, LLC | History | No change | 150,000 | 1,512 | 0.04% | 0.05% | 52 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| BERKLEY W R CORP | History | Added to | 149,955 | 1,511 | 0.07% | 0.06% | 53 | +49,745 | 49.64% | Q4 2025 | Feb 13, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | No change | 75,000 | 766 | 0.01% | 0.01% | 54 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Diametric Capital, LP | History | New | 59,585 | 608 | 0.16% | — | 55 | +59,585 | New | Q4 2025 | Feb 13, 2026 |
| JPMORGAN CHASE & CO | History | New | 55,075 | 555 | 0.0% | — | 56 | +55,075 | New | Q4 2025 | Feb 11, 2026 |
| Virtu Financial LLC | History | New | 53,161 | 536 | 0.02% | — | 57 | +53,161 | New | Q4 2025 | Feb 23, 2026 |
| HRT FINANCIAL LP | History | Reduced | 50,207 | 513 | 0.0% | 0.0% | 58 | -190 | -0.38% | Q4 2025 | Feb 12, 2026 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | History | New | 50,000 | 504 | 0.7% | — | 59 | +50,000 | New | Q4 2025 | Mar 04, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | Added to | 49,386 | 504 | 0.02% | 0.01% | 60 | +27,744 | 128.2% | Q4 2025 | Feb 17, 2026 |
| StoneX Group Inc. | History | Reduced | 40,988 | 413 | 0.02% | 0.07% | 61 | -108,519 | -72.58% | Q4 2025 | Feb 12, 2026 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | No change | 25,000 | 252 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Centiva Capital, LP | History | No change | 25,000 | 252 | 0.0% | 0.0% | 63 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| SYQUANT CAPITAL SAS | History | No change | 20,000 | 204 | 0.02% | 0.06% | 64 | 0 | 0.0% | Q4 2025 | Jan 13, 2026 |
| Mint Tower Capital Management B.V. | History | New | 20,000 | 202 | 0.02% | — | 65 | +20,000 | New | Q4 2025 | Feb 12, 2026 |
| PRELUDE CAPITAL MANAGEMENT, LLC | History | New | 14,826 | 151 | 0.01% | — | 66 | +14,826 | New | Q4 2025 | Feb 17, 2026 |
| OMERS ADMINISTRATION Corp | History | No change | 10,000 | 102 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| CSS LLC/IL | History | No change | 10,000 | 102 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | New | 6,814 | 69 | 0.0% | — | 69 | +6,814 | New | Q4 2025 | Jan 29, 2026 |
| Weiss Asset Management LP | History | Closed out | 0 | 0 | — | 3.87% | — | -1,100,000 | -100.0% | Q3 2025 | Feb 17, 2026 |
| Burkehill Global Management, LP | History | Closed out | 0 | 0 | — | 0.29% | — | -500,000 | -100.0% | Q3 2025 | Nov 14, 2025 |
| K2 PRINCIPAL FUND, L.P. | History | Closed out | 0 | 0 | — | 0.16% | — | -200,000 | -100.0% | Q3 2025 | Nov 13, 2025 |
| Alpine Global Management, LLC | History | Closed out | 0 | 0 | — | 0.15% | — | -75,000 | -100.0% | Q3 2025 | Nov 21, 2025 |
| CAPSTONE INVESTMENT ADVISORS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -72,205 | -100.0% | Q3 2025 | Nov 14, 2025 |
| MIZUHO SECURITIES USA LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -25,000 | -100.0% | Q3 2025 | Oct 22, 2025 |