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BCSS

Bain Capital GSS Investment Corp.

Company with tickers: BCSS, BCSS-UN, BCSS-WT

CIK
2064355
CUSIP
G0R78B106
Shares Outstanding
46,900,000
13F Activity (30d)
63 filings 63 filers
Price
$10.20
Market Cap
$595.68M
52W High
$10.24
52W Low
$9.95
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 63
Total Value: $407,642,565
Total Shares: 40,312,756

Institutional Ownership Trend

2 quarters

Holder Concentration

Across 63 13F filers · Δ vs Dec 31, 2025
Top Holder
9.9%
Dec 2025 → Mar 2026 · range 9.9% – 10.0%
−0.1 pts
Top 5
35.3%
Dec 2025 → Mar 2026 · range 35.0% – 35.3%
+0.3 pts
Top 10
50.9%
Dec 2025 → Mar 2026 · range 50.9% – 55.0%
−4.1 pts
HHI
407
Dec 2025 → Mar 2026 · range 407 – 428
Broadly held −22

Quarterly Activity

vs Dec 31, 2025
New
17
Increased
11
Decreased
10
Sold Out
3
Unchanged
25
Holder count: +14
Institutional value: +34.1%
Shares held: +33.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Small Fort Baker Capital Management LP +1,201,606 3,981,252
Mega MILLENNIUM MANAGEMENT LLC +341,560 957,560
Large Centiva Capital, LP +237,500 262,500
Small Shaolin Capital Management LLC +217,433 567,433
Small Decagon Asset Management LLP +91,483 656,944

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mid J. Goldman & Co LP −315,001 840,000
Small Periscope Capital Inc. −100,000 425,000
Large Hudson Bay Capital Management LP −89,479 310,521
Large Clear Street Group Inc. −66,093 183,907
Large HighTower Advisors, LLC −46,783 1,138,966

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mid Empyrean Capital Partners, LP 3,990,000 $40,346,880
Micro LuminArx Capital Management LP 1,003,379 $10,146,168
Mid Ghisallo Capital Management LLC 1,000,000 $10,112,000
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 700,000 $7,078,400
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 546,251 $5,523,686

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mid Ilex Capital Partners (UK) LLP 200,000 $2,016,000
Mid OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 50,000 $504,000
Small StoneX Group Inc. 40,988 $413,159
Filter: New 17 Increased 11 Reduced 10 Sold out 3 Unchanged 25
64 of 64 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mid Empyrean Capital Partners, LP $40,346,880 9.90% 3,990,000 View
Small Fort Baker Capital Management LP $40,258,420 9.88% 3,981,252 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $30,336,000 7.44% 3,000,000 View
Mid Sculptor Capital LP $17,431,621 4.28% 1,723,855 View
Small Mercuria Capital Strategies, LLC $15,631,918 3.83% 1,545,878 View
Mid MOORE CAPITAL MANAGEMENT, LP $15,168,000 3.72% 1,500,000 View
Mid Davidson Kempner Capital Management LP $14,156,800 3.47% 1,400,000 View
Mid AQR Arbitrage LLC $11,622,975 2.85% 1,149,424 View
Large HighTower Advisors, LLC $11,517,224 2.83% 1,138,966 View
Small METEORA CAPITAL, LLC $11,105,948 2.72% 1,098,294 View
Micro LuminArx Capital Management LP $10,146,168 2.49% 1,003,379 View
Mid ARISTEIA CAPITAL, L.L.C. $10,112,000 2.48% 1,000,000 View
Mid Ghisallo Capital Management LLC $10,112,000 2.48% 1,000,000 View
Mid Polar Asset Management Partners Inc. $10,112,000 2.48% 1,000,000 View
Mega MILLENNIUM MANAGEMENT LLC $9,682,846 2.38% 957,560 View
Mega TWO SIGMA INVESTMENTS, LP $8,643,292 2.12% 854,756 View
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Pension $7,078,400 1.74% 700,000 View
Mid J. Goldman & Co LP $7,078,400 1.74% 700,000 View
Mid PICTON MAHONEY ASSET MANAGEMENT $7,078,400 1.74% 700,000 View
Small Decagon Asset Management LLP $6,643,017 1.63% 656,944 View
Mid Linden Advisors LP $6,067,200 1.49% 600,000 View
Small Shaolin Capital Management LLC $5,737,882 1.41% 567,433 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $5,523,686 1.36% 546,251 View
Mid Saba Capital Management, L.P. $5,415,784 1.33% 535,580 View
Small Boussard & Gavaudan Investment Management LLP $5,056,000 1.24% 500,000 View
Mid Lighthouse Investment Partners, LLC $5,056,000 1.24% 500,000 View
Large Verition Fund Management LLC $4,784,998 1.17% 473,200 View
Small Lineage Point Capital LP $4,752,640 1.17% 470,000 View
Mid Magnetar Financial LLC $4,550,400 1.12% 450,000 View
Small Periscope Capital Inc. $4,297,600 1.05% 425,000 View
Small CSS LLC/IL $3,917,287 0.96% 387,390 View
Mega BNP PARIBAS ARBITRAGE, SA $3,631,219 0.89% 359,100 View
Mid TENOR CAPITAL MANAGEMENT Co., L.P. $3,539,200 0.87% 350,000 View
Small Radcliffe Capital Management, L.P. $3,422,365 0.84% 338,446 View
Mid GLAZER CAPITAL, LLC $3,387,520 0.83% 335,000 View
Large Hudson Bay Capital Management LP $3,139,988 0.77% 310,521 View
Small Bulldog Investors, LLP $3,116,932 0.76% 308,241 View
Small HIGHBRIDGE CAPITAL MANAGEMENT LLC $3,033,600 0.74% 300,000 View
Mid CANTOR FITZGERALD, L. P. $3,006,914 0.74% 297,361 View
Small DLD Asset Management, LP $2,791,367 0.68% 276,045 View
Large Centiva Capital, LP $2,654,400 0.65% 262,500 View
Large Jain Global LLC $2,528,000 0.62% 250,000 View
Large Schonfeld Strategic Advisors LLC $2,526,746 0.62% 249,876 View
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $2,357,612 0.58% 233,150 View
Mid HBK INVESTMENTS L P $2,022,450 0.50% 200,005 View
Small K2 PRINCIPAL FUND, L.P. $2,022,400 0.50% 200,000 View
Large Clear Street Group Inc. $1,859,667 0.46% 183,907 View
Mega CITIGROUP INC $1,769,600 0.43% 175,000 View
Small Context Capital Management, LLC $1,516,800 0.37% 150,000 View
Mid First Trust Capital Management L.P. $1,516,749 0.37% 149,995 View
Mid BERKLEY W R CORP $1,516,344 0.37% 149,955 View
Mid J. Goldman & Co LP $1,415,680 0.35% 140,000 View
Mid SONA ASSET MANAGEMENT (US) LLC $1,038,734 0.25% 102,723 View
Mid Virtu Financial LLC $995,667 0.24% 98,464 View
Mid READYSTATE ASSET MANAGEMENT LP $585,484 0.14% 57,900 View
Mega JPMORGAN CHASE & CO $556,918 0.14% 55,075 View
Mid O'Connor Alternative Investments LLC $505,600 0.12% 50,000 View
Mid Galaxy Digital Inc. $505,600 0.12% 50,000 View
Mega JANE STREET GROUP, LLC $250,878 0.06% 24,810 View
Large TORONTO DOMINION BANK Bank $248,421 0.06% 24,567 View
Large STATE OF WISCONSIN INVESTMENT BOARD $242,688 0.06% 24,000 View
Large HRT FINANCIAL LP $211,876 0.05% 20,953 View
Small Mint Tower Capital Management B.V. $202,240 0.05% 20,000 View
Small PenderFund Capital Management Ltd. $101,120 0.02% 10,000 View

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