Bain Capital GSS Investment Corp. - BCSS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 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 40,346 1.31% 1.42% 1 0 0.0% Q1 2026 May 15, 2026
Fort Baker Capital Management LP History Added to 3,981,252 40,257 3.16% 3.06% 2 +1,201,606 43.23% Q1 2026 May 15, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History No change 3,000,000 30,335 0.05% 0.05% 3 0 0.0% Q1 2026 May 15, 2026
Sculptor Capital LP History No change 1,723,855 17,431 0.18% 0.18% 4 0 0.0% Q1 2026 May 15, 2026
Alberta Investment Management Corp History No change 1,600,000 16,352 0.1% 0.1% 5 0 0.0% Q1 2026 Apr 28, 2026
Mercuria Capital Strategies, LLC History No change 1,545,878 15,631 5.97% 8.97% 6 0 0.0% Q1 2026 May 06, 2026
MOORE CAPITAL MANAGEMENT, LP History No change 1,500,000 15,167 0.31% 0.22% 7 0 0.0% Q1 2026 May 15, 2026
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP History No change 1,400,000 14,156 0.19% 0.22% 8 0 0.0% Q1 2026 May 15, 2026
AQR Arbitrage LLC History Reduced 1,149,424 11,622 0.19% 0.25% 9 -35,276 -2.98% Q1 2026 May 15, 2026
HighTower Advisors, LLC History Reduced 1,138,966 11,516 0.01% 0.01% 10 -46,783 -3.95% Q1 2026 May 05, 2026
METEORA CAPITAL, LLC History Reduced 1,098,294 11,105 0.82% 0.94% 11 -10,706 -0.97% Q1 2026 May 15, 2026
LuminArx Capital Management LP History New 1,003,379 10,145 7.45% 12 +1,003,379 New Q1 2026 May 14, 2026
ARISTEIA CAPITAL, L.L.C. History No change 1,000,000 10,111 0.21% 0.22% 13 0 0.0% Q1 2026 May 15, 2026
Polar Asset Management Partners Inc. History No change 1,000,000 10,111 0.2% 0.13% 14 0 0.0% Q1 2026 May 15, 2026
Ghisallo Capital Management LLC History No change 1,000,000 10,111 0.28% 0.46% 15 0 0.0% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 957,560 9,682 0.0% 0.01% 16 -358,440 -27.24% Q1 2026 May 15, 2026
TWO SIGMA INVESTMENTS, LP History No change 854,756 8,643 0.01% 0.01% 17 0 0.0% Q1 2026 May 15, 2026
J. Goldman & Co LP History Reduced 840,000 7,170 0.21% 0.26% 18 -315,001 -27.27% Q1 2026 May 15, 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND History No change 700,000 7,078 0.01% 0.01% 19 0 0.0% Q1 2026 May 14, 2026
PICTON MAHONEY ASSET MANAGEMENT History No change 700,000 7,078 0.05% 0.05% 20 0 0.0% Q1 2026 May 13, 2026
Decagon Asset Management LLP History Added to 656,944 6,642 1.72% 2.19% 21 +91,483 16.18% Q1 2026 May 15, 2026
LINDEN ADVISORS LP History No change 600,000 6,067 0.03% 0.04% 22 0 0.0% Q1 2026 May 15, 2026
Shaolin Capital Management LLC History Added to 567,433 5,737 0.21% 0.11% 23 +217,433 62.12% Q1 2026 May 15, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History New 546,251 5,523 0.0% 24 +546,251 New Q1 2026 May 13, 2026
Saba Capital Management, L.P. History No change 535,580 5,415 0.15% 0.16% 25 0 0.0% Q1 2026 May 15, 2026
TORONTO DOMINION BANK History Reduced 508,509 5,194 0.01% 0.01% 26 -78,099 -13.31% Q1 2026 May 15, 2026
Jain Global LLC History No change 500,000 5,087 0.02% 0.02% 27 0 0.0% Q1 2026 May 15, 2026
Lighthouse Investment Partners, LLC History No change 500,000 5,055 0.18% 0.15% 28 0 0.0% Q1 2026 May 14, 2026
Boussard & Gavaudan Investment Management LLP History No change 500,000 5,050 0.48% 0.38% 29 0 0.0% Q1 2026 May 15, 2026
Verition Fund Management LLC History Reduced 473,200 4,784 0.03% 0.02% 30 -19,900 -4.04% Q1 2026 May 15, 2026
Lineage Point Capital LP History No change 470,000 4,752 1.16% 1.8% 31 0 0.0% Q1 2026 May 15, 2026
BlueCrest Capital Management Ltd History No change 450,000 4,599 0.27% 0.14% 32 0 0.0% Q1 2026 May 15, 2026
Magnetar Financial LLC History No change 450,000 4,545 0.05% 0.04% 33 0 0.0% Q1 2026 May 13, 2026
PERISCOPE CAPITAL INC. History Reduced 425,000 4,297 0.48% 0.61% 34 -100,000 -19.05% Q1 2026 May 13, 2026
CSS LLC/IL History Added to 387,390 3,917 0.19% 0.0% 35 +377,390 3773.9% Q1 2026 May 15, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 359,100 3,631 0.0% 0.0% 36 +43,800 13.89% Q1 2026 May 12, 2026
TENOR CAPITAL MANAGEMENT Co., L.P. History No change 350,000 3,539 0.05% 0.05% 37 0 0.0% Q1 2026 May 15, 2026
Radcliffe Capital Management, L.P. History Added to 338,446 3,422 0.26% 0.15% 38 +73,753 27.86% Q1 2026 May 15, 2026
GLAZER CAPITAL, LLC History Added to 335,131 3,388 0.07% 0.08% 39 +39,879 13.51% Q1 2026 May 14, 2026
Hudson Bay Capital Management LP History Reduced 310,521 3,139 0.01% 0.01% 40 -89,479 -22.37% Q1 2026 May 13, 2026
Bulldog Investors, LLP History Added to 308,241 3,116 0.7% 0.67% 41 +11,662 3.93% Q1 2026 May 08, 2026
LMR Partners LLP History No change 300,000 3,066 0.01% 0.01% 42 0 0.0% Q1 2026 May 15, 2026
HIGHBRIDGE CAPITAL MANAGEMENT LLC History No change 300,000 3,030 0.1% 0.1% 43 0 0.0% Q1 2026 May 15, 2026
CANTOR FITZGERALD, L. P. History New 297,361 3,006 0.04% 44 +297,361 New Q1 2026 May 15, 2026
DLD Asset Management, LP History Added to 276,045 2,791 0.25% 0.19% 45 +20,000 7.81% Q1 2026 May 13, 2026
Centiva Capital, LP History Added to 262,500 2,654 0.02% 0.0% 46 +237,500 950.0% Q1 2026 May 14, 2026
Westchester Capital Management, LLC History No change 250,000 2,552 0.12% 0.11% 47 0 0.0% Q1 2026 May 15, 2026
Schonfeld Strategic Advisors LLC History No change 249,876 2,526 0.02% 0.01% 48 0 0.0% Q1 2026 May 15, 2026
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS History No change 233,150 2,357 0.01% 0.01% 49 0 0.0% Q1 2026 May 01, 2026
Clear Street Group Inc. History Reduced 229,259 2,323 0.01% 0.01% 50 -27,064 -10.56% Q1 2026 May 15, 2026
Walleye Capital LLC History No change 200,000 2,044 0.01% 0.01% 51 0 0.0% Q1 2026 May 13, 2026
K2 PRINCIPAL FUND, L.P. History New 200,000 2,022 0.14% 53 +200,000 New Q1 2026 May 14, 2026
HBK INVESTMENTS L P History No change 200,005 2,022 0.02% 0.02% 52 0 0.0% Q1 2026 May 15, 2026
CITIGROUP INC History No change 175,000 1,769 0.0% 0.0% 54 0 0.0% Q1 2026 May 11, 2026
WOLVERINE ASSET MANAGEMENT LLC History New 150,000 1,533 0.01% 55 +150,000 New Q1 2026 May 04, 2026
First Trust Capital Management L.P. History New 149,995 1,516 0.08% 58 +149,995 New Q1 2026 May 14, 2026
BERKLEY W R CORP History No change 149,955 1,516 0.08% 0.07% 56 0 0.0% Q1 2026 May 15, 2026
Context Capital Management, LLC History No change 150,000 1,516 0.04% 0.04% 57 0 0.0% Q1 2026 May 07, 2026
READYSTATE ASSET MANAGEMENT LP History Added to 107,286 1,090 0.05% 0.02% 59 +57,900 117.24% Q1 2026 May 15, 2026
SONA ASSET MANAGEMENT (US) LLC History New 102,723 1,038 0.02% 60 +102,723 New Q1 2026 May 15, 2026
Virtu Financial LLC History Added to 98,464 996 0.04% 0.02% 61 +45,303 85.22% Q1 2026 May 14, 2026
BOOTHBAY FUND MANAGEMENT, LLC History No change 75,000 766 0.01% 0.01% 62 0 0.0% Q1 2026 May 15, 2026
HRT FINANCIAL LP History Added to 69,989 712 0.0% 0.0% 63 +19,782 39.4% Q1 2026 May 14, 2026
Diametric Capital, LP History Reduced 58,585 599 0.16% 0.16% 64 -1,000 -1.68% Q1 2026 May 15, 2026
JPMORGAN CHASE & CO History No change 55,075 556 0.0% 0.0% 65 0 0.0% Q1 2026 May 13, 2026
Galaxy Digital Inc. History New 50,000 505 0.04% 66 +50,000 New Q1 2026 May 14, 2026
O'Connor Alternative Investments LLC History New 50,000 505 0.04% 67 +50,000 New Q1 2026 May 15, 2026
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) History No change 50,000 504 0.06% 0.06% 68 0 0.0% Q4 2025 Feb 13, 2026
JANE STREET GROUP, LLC History New 24,810 250 0.0% 69 +24,810 New Q1 2026 May 12, 2026
STATE OF WISCONSIN INVESTMENT BOARD History Reduced 24,000 242 0.0% 0.0% 70 -1,000 -4.0% Q1 2026 May 15, 2026
Mint Tower Capital Management B.V. History No change 20,000 202 0.02% 0.02% 71 0 0.0% Q1 2026 May 04, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History No change 14,826 151 0.01% 0.01% 72 0 0.0% Q1 2026 May 15, 2026
OMERS ADMINISTRATION Corp History No change 10,000 102 0.0% 0.0% 73 0 0.0% Q1 2026 May 15, 2026
PenderFund Capital Management Ltd. History New 10,000 101 0.02% 74 +10,000 New Q1 2026 May 15, 2026
UBS Group AG History Added to 7,283 74 0.0% 0.0% 75 +469 6.88% Q1 2026 May 05, 2026
Diameter Capital Partners LP History Closed out 0 0 1.87% -2,000,000 -100.0% Q1 2026 May 15, 2026
HGC Investment Management Inc. History Closed out 0 0 0.87% -400,000 -100.0% Q1 2026 May 15, 2026
Ilex Capital Partners (UK) LLP History Closed out 0 0 0.06% -200,000 -100.0% Q1 2026 May 15, 2026
StoneX Group Inc. History Closed out 0 0 0.02% -40,988 -100.0% Q1 2026 May 14, 2026
SYQUANT CAPITAL SAS History Closed out 0 0 0.02% -20,000 -100.0% Q1 2026 Apr 10, 2026