Bain Capital GSS Investment Corp. - BCSS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
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
Fort Baker Capital Management LP History Added to 4,248,685 43,633 3.19% 3.16% 1 +267,433 6.72% Q2 2026 Aug 14, 2026
Empyrean Capital Partners, LP History No change 3,990,000 40,977 1.35% 1.31% 2 0 0.0% Q2 2026 Aug 14, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. History No change 3,000,000 30,810 0.04% 0.05% 3 0 0.0% Q2 2026 Aug 14, 2026
Sculptor Capital LP History No change 1,723,855 17,703 0.14% 0.18% 4 0 0.0% Q2 2026 Aug 14, 2026
Alberta Investment Management Corp History No change 1,600,000 16,432 0.09% 0.1% 5 0 0.0% Q2 2026 Aug 06, 2026
Mercuria Capital Strategies, LLC History No change 1,545,878 15,876 9.74% 5.97% 6 0 0.0% Q2 2026 Jul 30, 2026
MOORE CAPITAL MANAGEMENT, LP History No change 1,500,000 15,405 0.23% 0.31% 7 0 0.0% Q2 2026 Aug 14, 2026
J. Goldman & Co LP History Added to 1,621,156 15,312 0.4% 0.21% 8 +781,156 92.99% Q2 2026 Aug 14, 2026
DAVIDSON KEMPNER CAPITAL MANAGEMENT LP History No change 1,400,000 14,378 0.17% 0.19% 9 0 0.0% Q2 2026 Aug 14, 2026
AQR Arbitrage LLC History Added to 1,184,099 12,160 0.17% 0.19% 10 +34,675 3.02% Q2 2026 Aug 14, 2026
HighTower Advisors, LLC History Reduced 1,081,073 11,102 0.01% 0.01% 11 -57,893 -5.08% Q2 2026 Aug 05, 2026
Polar Asset Management Partners Inc. History Added to 1,050,000 10,783 0.18% 0.2% 12 +50,000 5.0% Q2 2026 Aug 14, 2026
LuminArx Capital Management LP History Added to 1,204,054 10,441 4.65% 7.45% 13 +200,675 20.0% Q2 2026 Aug 14, 2026
ARISTEIA CAPITAL, L.L.C. History No change 1,000,000 10,270 0.13% 0.21% 14 0 0.0% Q2 2026 Aug 14, 2026
Ghisallo Capital Management LLC History No change 1,000,000 10,270 0.2% 0.28% 15 0 0.0% Q2 2026 Aug 14, 2026
METEORA CAPITAL, LLC History Reduced 953,237 9,789 0.81% 0.82% 16 -145,057 -13.21% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 857,600 8,807 0.0% 0.0% 17 -99,960 -10.44% Q2 2026 Aug 14, 2026
TWO SIGMA INVESTMENTS, LP History No change 854,756 8,778 0.01% 0.01% 18 0 0.0% Q2 2026 Aug 14, 2026
TORONTO DOMINION BANK History Added to 808,302 8,365 0.01% 0.01% 19 +299,793 58.96% Q2 2026 Aug 14, 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND History No change 700,000 7,189 0.01% 0.01% 20 0 0.0% Q2 2026 Aug 13, 2026
PICTON MAHONEY ASSET MANAGEMENT History No change 700,000 7,189 0.05% 0.05% 21 0 0.0% Q2 2026 Aug 13, 2026
LINDEN ADVISORS LP History No change 600,000 6,162 0.03% 0.03% 22 0 0.0% Q2 2026 Aug 14, 2026
Centiva Capital, LP History Added to 562,500 5,776 0.05% 0.02% 23 +300,000 114.29% Q2 2026 Aug 13, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History Reduced 518,210 5,322 0.0% 0.0% 24 -28,041 -5.13% Q2 2026 Aug 13, 2026
Jain Global LLC History No change 500,000 5,135 0.02% 0.02% 25 0 0.0% Q2 2026 Aug 14, 2026
BOUSSARD & GAVAUDAN GESTION SAS History New 500,000 5,105 0.26% — 26 +500,000 New Q2 2026 Aug 19, 2026
Boussard & Gavaudan Investment Management LLP History No change 500,000 5,050 0.48% 0.48% 27 0 0.0% Q1 2026 May 15, 2026
Verition Fund Management LLC History Reduced 472,950 4,857 0.02% 0.03% 28 -250 -0.05% Q2 2026 Aug 14, 2026
Saba Capital Management, L.P. History Reduced 455,777 4,680 0.12% 0.15% 29 -79,803 -14.9% Q2 2026 Aug 14, 2026
BlueCrest Capital Management Ltd History No change 450,000 4,657 0.15% 0.27% 30 0 0.0% Q2 2026 Aug 14, 2026
Magnetar Financial LLC History No change 450,000 4,621 0.04% 0.05% 31 0 0.0% Q2 2026 Aug 14, 2026
Shaolin Capital Management LLC History Reduced 430,650 4,422 0.21% 0.21% 32 -136,783 -24.11% Q2 2026 Aug 14, 2026
PERISCOPE CAPITAL INC. History No change 425,000 4,364 0.38% 0.48% 33 0 0.0% Q2 2026 Aug 11, 2026
Radcliffe Capital Management, L.P. History Added to 412,365 4,234 0.32% 0.26% 34 +73,919 21.84% Q2 2026 Aug 14, 2026
Lineage Point Capital LP History Reduced 400,000 4,108 0.84% 1.16% 35 -70,000 -14.89% Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 359,100 3,687 0.0% 0.0% 36 0 0.0% Q2 2026 Aug 13, 2026
TENOR CAPITAL MANAGEMENT Co., L.P. History No change 350,000 3,594 0.05% 0.05% 37 0 0.0% Q2 2026 Aug 14, 2026
GLAZER CAPITAL, LLC History Reduced 334,711 3,437 0.08% 0.07% 38 -420 -0.13% Q2 2026 Aug 14, 2026
Hudson Bay Capital Management LP History No change 310,521 3,189 0.01% 0.01% 39 0 0.0% Q2 2026 Aug 14, 2026
READYSTATE ASSET MANAGEMENT LP History Added to 307,286 3,159 0.11% 0.05% 40 +200,000 186.42% Q2 2026 Aug 14, 2026
Bulldog Investors, LLP History Reduced 306,885 3,151 0.69% 0.7% 41 -1,356 -0.44% Q2 2026 Aug 14, 2026
LMR Partners LLP History No change 300,000 3,105 0.01% 0.01% 42 0 0.0% Q2 2026 Aug 14, 2026
DLD Asset Management, LP History Added to 300,000 3,081 0.2% 0.25% 44 +23,955 8.68% Q2 2026 Aug 12, 2026
HIGHBRIDGE CAPITAL MANAGEMENT LLC History No change 300,000 3,081 0.07% 0.1% 43 0 0.0% Q2 2026 Aug 14, 2026
Westchester Capital Management, LLC History No change 250,000 2,587 0.13% 0.12% 45 0 0.0% Q2 2026 Aug 14, 2026
Schonfeld Strategic Advisors LLC History No change 249,876 2,566 0.01% 0.02% 46 0 0.0% Q2 2026 Aug 14, 2026
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS History No change 233,150 2,394 0.01% 0.01% 47 0 0.0% Q2 2026 Jul 17, 2026
Walleye Capital LLC History No change 200,000 2,070 0.01% 0.01% 48 0 0.0% Q2 2026 Aug 03, 2026
HBK INVESTMENTS L P History No change 200,005 2,054 0.02% 0.02% 49 0 0.0% Q2 2026 Sep 16, 2026
K2 PRINCIPAL FUND, L.P. History No change 200,000 2,054 0.15% 0.14% 50 0 0.0% Q2 2026 Aug 07, 2026
Clear Street Group Inc. History Reduced 187,222 1,926 0.0% 0.01% 51 -42,037 -18.34% Q2 2026 Aug 12, 2026
CITIGROUP INC History No change 175,000 1,797 0.0% 0.0% 52 0 0.0% Q2 2026 Aug 03, 2026
BERKLEY W R CORP History No change 149,955 1,540 0.07% 0.08% 53 0 0.0% Q2 2026 Aug 14, 2026
WOLVERINE ASSET MANAGEMENT LLC History No change 150,000 1,540 0.01% 0.01% 54 0 0.0% Q2 2026 Aug 10, 2026
Context Capital Management, LLC History No change 150,000 1,540 0.03% 0.04% 55 0 0.0% Q2 2026 Jul 23, 2026
First Trust Capital Management L.P. History No change 149,995 1,540 0.09% 0.08% 56 0 0.0% Q2 2026 Aug 13, 2026
SONA ASSET MANAGEMENT (US) LLC History No change 102,723 1,054 0.02% 0.02% 57 0 0.0% Q2 2026 Aug 14, 2026
BOOTHBAY FUND MANAGEMENT, LLC History No change 75,000 776 0.01% 0.01% 58 0 0.0% Q2 2026 Aug 14, 2026
Parallax Volatility Advisers, L.P. History New 58,585 606 0.0% — 59 +58,585 New Q2 2026 Aug 14, 2026
JPMORGAN CHASE & CO History No change 55,075 565 0.0% 0.0% 60 0 0.0% Q2 2026 Aug 12, 2026
HRT FINANCIAL LP History Reduced 52,001 538 0.0% 0.0% 61 -17,988 -25.7% Q2 2026 Aug 14, 2026
Galaxy Digital Inc. History No change 50,000 513 0.03% 0.04% 62 0 0.0% Q2 2026 Aug 14, 2026
O'Connor Alternative Investments LLC History No change 50,000 513 0.04% 0.04% 63 0 0.0% Q2 2026 Aug 14, 2026
PenderFund Capital Management Ltd. History Added to 26,600 273 0.03% 0.02% 64 +16,600 166.0% Q2 2026 Aug 14, 2026
SkyView Investment Advisors, LLC History New 25,100 260 0.2% — 65 +25,100 New Q2 2026 Sep 14, 2026
STATE OF WISCONSIN INVESTMENT BOARD History No change 24,000 246 0.0% 0.0% 66 0 0.0% Q2 2026 Aug 14, 2026
Mint Tower Capital Management B.V. History No change 20,000 205 0.02% 0.02% 67 0 0.0% Q2 2026 Aug 18, 2026
OMERS ADMINISTRATION Corp History No change 10,000 103 0.0% 0.0% 68 0 0.0% Q2 2026 Aug 13, 2026
UBS Group AG History Added to 7,297 75 0.0% 0.0% 69 +14 0.19% Q2 2026 Aug 13, 2026
Decagon Asset Management LLP History Closed out 0 0 — 1.72% — -656,944 -100.0% Q2 2026 Aug 14, 2026
Lighthouse Investment Partners, LLC History Closed out 0 0 — 0.18% — -500,000 -100.0% Q2 2026 Aug 14, 2026
CSS LLC/IL History Closed out 0 0 — 0.19% — -387,390 -100.0% Q2 2026 Aug 14, 2026
CANTOR FITZGERALD, L. P. History Closed out 0 0 — 0.04% — -297,361 -100.0% Q2 2026 Aug 14, 2026
Virtu Financial LLC History Closed out 0 0 — 0.04% — -98,464 -100.0% Q2 2026 Aug 13, 2026
Diametric Capital, LP History Closed out 0 0 — 0.16% — -58,585 -100.0% Q2 2026 Aug 14, 2026
JANE STREET GROUP, LLC History Closed out 0 0 — 0.0% — -24,810 -100.0% Q2 2026 Aug 14, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History Closed out 0 0 — 0.01% — -14,826 -100.0% Q2 2026 Aug 14, 2026