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Bain Capital GSS Investment Corp.

BCSS
Exchange
NYSE
Industry
Blank Checks
SEC CIK
0002064355

No open-market purchases or sales by Bain Capital GSS Investment Corp. insiders were filed in the last 90 days; 59 institutions reported holding it in 13F filings for Q2 2026, worth $425.9M in total; no superinvestor holds it.

Other share classesBCSS.UNBCSS.WT

13F holders, Q2 2026

Institutional positions in Bain Capital GSS Investment Corp. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
59
−3 vs. Q1 2026
Shares held
41.5M
+1.80M (+4.5%) vs. Q1 2026
Total value
$425.9M
+$24.7M (+6.2%) vs. Q1 2026
New holders
4
10 more added
Sold out
7
12 more reduced

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BCSS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 59 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 0 institutionsQ2 2025: 0 institutionsQ3 2025: 0 institutionsQ4 2025: 49 institutionsQ1 2026: 63 institutionsQ2 2026: 59 institutions
Value heldQ2 2026: $425.9M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $0Q2 2025: $0Q3 2025: $0Q4 2025: $302.2MQ1 2026: $406.2MQ2 2026: $425.9M
Institutions holding BCSS and their total value by quarter
QuarterHoldersValue
Q2 202659$425.9M
Q1 202663$406.2M
Q4 202549$302.2M
Q3 20250$0
Q2 20250$0
Q1 20250$0
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Bain Capital GSS Investment Corp.; share changes are against Q1 2026.

Institutions holding BCSS in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Fort Baker Capital Management LP4,248,685$43.6M3.47%+267,433+6.7%Added
Empyrean Capital Partners, LP3,990,000$41.0M1.44%00.0%Unchanged
Adage Capital Partners GP, L.L.C.3,000,000$30.8M0.04%00.0%Unchanged
Sculptor Capital LP1,723,855$17.7M0.18%00.0%Unchanged
Alberta Investment Management Corp1,600,000$16.4M0.09%+1,600,000New
Mercuria Capital Strategies, LLC1,545,878$15.9M9.74%00.0%Unchanged
Moore Capital Management, LP1,500,000$15.4M0.35%00.0%Unchanged
J. Goldman & Co LP1,481,156$15.2M0.54%+781,156+111.6%Added
Davidson Kempner Capital Management LP1,400,000$14.4M0.23%00.0%Unchanged
CNH Partners LLC1,184,099$12.2M0.17%+34,675+3.0%Added
HighTower Advisors, LLC1,081,073$11.1M0.01%−57,893−5.1%Reduced
Polar Asset Management Partners Inc.1,050,000$10.8M0.20%+50,000+5.0%Added
LuminArx Capital Management LP1,003,379$10.3M4.76%00.0%Unchanged
Aristeia Capital LLC1,000,000$10.3M0.16%00.0%Unchanged
Ghisallo Capital Management LLC1,000,000$10.3M0.20%00.0%Unchanged
Meteora Capital, LLC953,237$9.79M0.81%−145,057−13.2%Reduced
Millennium Management LLC857,600$8.81M0.01%−99,960−10.4%Reduced
Two Sigma Investments, LP854,756$8.78M0.01%00.0%Unchanged
Picton Mahoney Asset Management700,000$7.19M0.07%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund700,000$7.19M0.01%00.0%Unchanged
Linden Advisors LP600,000$6.16M0.03%00.0%Unchanged
Centiva Capital, LP562,500$5.78M0.19%+300,000+114.3%Added
UBS Asset Management Americas Inc518,210$5.32M0.00%−28,041−5.1%Reduced
Jain Global LLC500,000$5.13M0.06%+250,000+100.0%Added
Boussard & Gavaudan Gestion SAS500,000$5.11M0.26%+500,000New
Verition Fund Management LLC472,950$4.86M0.03%−250−0.1%Reduced
Saba Capital Management, L.P.455,777$4.68M0.14%−79,803−14.9%Reduced
Magnetar Financial LLC450,000$4.62M0.04%00.0%Unchanged
Shaolin Capital Management LLC430,650$4.42M0.25%−136,783−24.1%Reduced
Periscope Capital Inc.425,000$4.36M0.69%00.0%Unchanged
Radcliffe Capital Management, L.P.412,365$4.23M0.32%+73,919+21.8%Added
Lineage Point Capital LP400,000$4.11M0.84%−70,000−14.9%Reduced
BNP Paribas Arbitrage, SA359,100$3.69M0.00%00.0%Unchanged
Tenor Capital Management Co., L.P.350,000$3.59M0.05%00.0%Unchanged
Glazer Capital, LLC334,580$3.44M0.08%−420−0.1%Reduced
Hudson Bay Capital Management LP310,521$3.19M0.01%00.0%Unchanged
Bulldog Investors, LLP306,885$3.15M0.69%−1,356−0.4%Reduced
Highbridge Capital Management LLC300,000$3.08M0.11%00.0%Unchanged
DLD Asset Management, LP300,000$3.08M0.25%+23,955+8.7%Added
Readystate Asset Management LP257,900$2.65M0.11%+200,000+345.4%Added
Schonfeld Strategic Advisors LLC249,876$2.57M0.01%00.0%Unchanged
Commonwealth of Pennsylvania Public School Empls Retrmt Sys233,150$2.39M0.01%00.0%Unchanged
Mizuho Securities USA LLC230,000$2.33M0.02%+230,000New
HBK Investments L P200,005$2.05M0.02%00.0%Unchanged
K2 Principal Fund, L.P.200,000$2.05M0.19%00.0%Unchanged
Citigroup Inc175,000$1.80M0.00%00.0%Unchanged
Context Capital Management, LLC150,000$1.54M0.03%00.0%Unchanged
Wolverine Asset Management LLC150,000$1.54M0.02%+150,000New
Vivaldi Asset Management, LLC149,995$1.54M0.09%00.0%Unchanged
Berkley W R Corp149,955$1.54M0.08%00.0%Unchanged
Clear Street Group Inc.138,933$1.43M0.00%−44,974−24.5%Reduced
Sona Asset Management (US) LLC102,723$1.05M0.04%00.0%Unchanged
JPMorgan Chase & Co55,075$565.6K0.00%00.0%Unchanged
O'Connor Alternative Investments LLC50,000$513.5K0.04%00.0%Unchanged
Galaxy Digital Inc.50,000$513.5K0.08%00.0%Unchanged
PenderFund Capital Management Ltd.26,600$273.2K0.04%+16,600+166.0%Added
State of Wisconsin Investment Board24,000$246.5K0.00%00.0%Unchanged
Mint Tower Capital Management B.V.20,000$205.0K0.02%00.0%Unchanged
Toronto Dominion Bank2$210.00%−24,565−100.0%Reduced
Decagon Asset Management LLP0$00.00%−656,944−100.0%Sold out
Lighthouse Investment Partners, LLC0$00.00%−500,000−100.0%Sold out
CSS LLC0$00.00%−387,390−100.0%Sold out
Cantor Fitzgerald, L. P.0$00.00%−297,361−100.0%Sold out
Virtu Financial LLC0$00.00%−98,464−100.0%Sold out
Jane Street Group, LLC0$00.00%−24,810−100.0%Sold out
HRT Financial LP0$00.00%−20,953−100.0%Sold out
Boussard & Gavaudan Investment Management LLP––––Not filed