Bain Capital GSS Investment Corp. - BCSS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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