Vault-13

BAIN CAP GSS INVT CORP BCSS

ORD CL A · Common Stock · CUSIP G0R78B106

59 institutional holders -4 vs Q1 2026
41,475,47041.5m shares reported held*
$425.9mreported value*
3 new 10 added 12 reduced 7 sold out net bought ≈ $13.4m (+1.3m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $10.27. Options: 2 managers hold calls ($238.0k notional), 0 hold puts (—).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0255075Q4 25: 49Q1 26: 63Q2 26: 5959Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q4 202549
Q1 202663
Q2 202659

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q1 26: 26 bought or addedQ1 26: 12 cut or sold outQ1 26Q2 26: 13 bought or addedQ2 26: 19 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q1 20262612
Q2 20261319

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$100k$200k$300kQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $130.2kQ4 25 puts: $0Q4 25P/C 0.00Q1 26 calls: $92.4kQ1 26 puts: $0Q1 26P/C 0.00Q2 26 calls: $238.0kQ2 26 puts: $0Q2 26P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$130.2k$00.00
Q1 2026$92.4k$00.00
Q2 2026$238.0k$00.00

Biggest buyers

Alberta Investment Management Corp New +1,600,000+1.6m
J. Goldman & Co LP Added +781,156+781.2k
Centiva Capital, LP Added +300,000+300.0k
Fort Baker Capital Management LP Added +267,433+267.4k
Jain Global LLC Added +250,000+250.0k
MIZUHO SECURITIES USA LLC New +230,000+230.0k
READYSTATE ASSET MANAGEMENT LP Added +200,000+200.0k
WOLVERINE ASSET MANAGEMENT LLC New +150,000+150.0k
Radcliffe Capital Management, L.P. Added +73,919+73.9k
Polar Asset Management Partners Inc. Added +50,000+50.0k

Biggest sellers

Decagon Asset Management LLP Sold out -656,944-656.9k
Lighthouse Investment Partners, LLC Sold out -500,000-500.0k
CSS LLC/IL Sold out -387,390-387.4k
CANTOR FITZGERALD, L. P. Sold out -297,361-297.4k
Meteora Capital, LLC Reduced -145,057-145.1k
Shaolin Capital Management LLC Reduced -136,783-136.8k
MILLENNIUM MANAGEMENT LLC Reduced -99,960-100.0k
Virtu Financial LLC Sold out -98,464-98.5k
Saba Capital Management, L.P. Reduced -79,803-79.8k
Lineage Point Capital LP Reduced -70,000-70.0k

Biggest calls

LuminArx Capital Management LP New $136.5k200.7k shares
J. Goldman & Co LP Unchanged $101.5k140.0k shares

Biggest puts

None

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Bain Capital GSS Investment Sponsor LLC 13G · exempt (held before listing) new · filed 2025-10-15 21.2% new 12.4m≈ $127.0m 2025-10-15
Empyrean Capital Partners, LP 13G · institution filed 2026-05-15 9.3% 4.3m≈ $44.6m 2026-05-15
Fort Baker Capital Management LP 13G · institution +2.6 pts · filed 2026-05-15 8.5% +2.6 pts 4.0m≈ $40.9m 2026-05-15
Adage Capital Management, L.P. 13G · institution new · filed 2026-02-12 6.4% new 3.0m≈ $30.8m 2026-02-12

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Fort Baker Capital Management LP 3.47% of their portfolio Larkspur, CA 4,248,6854.2m $43.6m $43.6m 3.47% Added +267.4k +267,433
2 Empyrean Capital Partners, LP 1.44% of their portfolio LOS ANGELES, CA 3,990,0004.0m $41.0m $41.0m 1.44% Unchanged
3 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio Boston, MA 3,000,0003.0m $30.8m $30.8m 0.04% Unchanged
4 Sculptor Capital LP 0.18% of their portfolio New York, NY 1,723,8551.7m $17.7m $17.7m 0.18% Unchanged
5 Alberta Investment Management Corp 0.09% of their portfolio EDMONTON, A0 1,600,0001.6m $16.4m $16.4m 0.09% New
6 Mercuria Capital Strategies, LLC 9.74% of their portfolio HOUSTON, TX 1,545,8781.5m $15.9m $15.9m 9.74% Unchanged
7 MOORE CAPITAL MANAGEMENT, LP 0.35% of their portfolio NEW YORK, NY 1,500,0001.5m $15.4m $15.4m 0.35% Unchanged
8 J. Goldman & Co LP 0.54% of their portfolio NEW YORK, NY 1,481,1561.5m $15.2m $15.2m 0.54% Added +781.2k +781,156
9 Davidson Kempner Capital Management LP 0.23% of their portfolio New York, NY 1,400,0001.4m $14.4m $14.4m 0.23% Unchanged
10 AQR Arbitrage LLC 0.17% of their portfolio Greenwich, CT 1,184,0991.2m $12.2m $12.2m 0.17% Added +34.7k +34,675
11 HighTower Advisors, LLC 0.01% of their portfolio CHICAGO, IL 1,081,0731.1m $11.1m $11.1m 0.01% Reduced -57.9k -57,893
12 Polar Asset Management Partners Inc. 0.20% of their portfolio TORONTO, A6 1,050,0001.1m $10.8m $10.8m 0.20% Added +50.0k +50,000
13 LuminArx Capital Management LP 4.76% of their portfolio NEW YORK, NY 1,003,3791.0m $10.3m $10.3m 4.76% Unchanged
14 ARISTEIA CAPITAL, L.L.C. 0.16% of their portfolio GREENWICH, CT 1,000,0001.0m $10.3m $10.3m 0.16% Unchanged
15 Ghisallo Capital Management LLC 0.20% of their portfolio BOSTON, MA 1,000,0001.0m $10.3m $10.3m 0.20% Unchanged
16 Meteora Capital, LLC 0.81% of their portfolio Boca Raton, FL 953,237953.2k $9.8m $9.8m 0.81% Reduced -145.1k -145,057
17 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 857,600857.6k $8.8m $8.8m 0.01% Reduced -100.0k -99,960
18 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 854,756854.8k $8.8m $8.8m 0.01% Unchanged
19 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 700,000700.0k $7.2m $7.2m 0.01% Unchanged
20 PICTON MAHONEY ASSET MANAGEMENT 0.07% of their portfolio Toronto, A6 700,000700.0k $7.2m $7.2m 0.07% Unchanged
21 Linden Advisors LP 0.03% of their portfolio New York, NY 600,000600.0k $6.2m $6.2m 0.03% Unchanged
22 Centiva Capital, LP 0.19% of their portfolio New York, NY 562,500562.5k $5.8m $5.8m 0.19% Added +300.0k +300,000
23 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 518,210518.2k $5.3m $5.3m 0.00% Reduced -28.0k -28,041
24 BOUSSARD & GAVAUDAN GESTION SAS 0.26% of their portfolio PARIS, I0 500,000500.0k $5.1m $5.1m 0.26% First filing
25 Jain Global LLC 0.06% of their portfolio NEW YORK, NY 500,000500.0k $5.1m $5.1m 0.06% Added +250.0k +250,000
26 Verition Fund Management LLC 0.03% of their portfolio GREENWICH, CT 472,950472.9k $4.9m $4.9m 0.03% Reduced -250 -250
27 Saba Capital Management, L.P. 0.14% of their portfolio NEW YORK, NY 455,777455.8k $4.7m $4.7m 0.14% Reduced -79.8k -79,803
28 Magnetar Financial LLC 0.04% of their portfolio EVANSTON, IL 450,000450.0k $4.6m $4.6m 0.04% Unchanged
29 Shaolin Capital Management LLC 0.25% of their portfolio Miami, FL 430,650430.6k $4.4m $4.4m 0.25% Reduced -136.8k -136,783
30 Periscope Capital Inc. 0.69% of their portfolio Toronto, A6 425,000425.0k $4.4m $4.4m 0.69% Unchanged
31 Radcliffe Capital Management, L.P. 0.32% of their portfolio BALA CYNWYD, PA 412,365412.4k $4.2m $4.2m 0.32% Added +73.9k +73,919
32 Lineage Point Capital LP 0.84% of their portfolio PALM BEACH, FL 400,000400.0k $4.1m $4.1m 0.84% Reduced -70.0k -70,000
33 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 359,100359.1k $3.7m $3.7m 0.00% Unchanged
34 TENOR CAPITAL MANAGEMENT Co., L.P. 0.05% of their portfolio NEW YORK, NY 350,000350.0k $3.6m $3.6m 0.05% Unchanged
35 GLAZER CAPITAL, LLC 0.08% of their portfolio New York, NY 334,580334.6k $3.4m $3.4m 0.08% Reduced -420 -420
36 Hudson Bay Capital Management LP 0.01% of their portfolio STAMFORD, CT 310,521310.5k $3.2m $3.2m 0.01% Unchanged
37 Bulldog Investors, LLP 0.69% of their portfolio SADDLE BROOK, NJ 306,885306.9k $3.2m $3.2m 0.69% Reduced -1.4k -1,356
38 HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.11% of their portfolio NEW YORK, NY 300,000300.0k $3.1m $3.1m 0.11% Unchanged
39 DLD Asset Management, LP 0.25% of their portfolio NEW YORK, NY 300,000300.0k $3.1m $3.1m 0.25% Added +24.0k +23,955
40 READYSTATE ASSET MANAGEMENT LP 0.11% of their portfolio CHICAGO, IL 257,900257.9k $2.6m $2.6m 0.11% Added +200.0k +200,000
41 Schonfeld Strategic Advisors LLC 0.01% of their portfolio NEW YORK, NY 249,876249.9k $2.6m $2.6m 0.01% Unchanged
42 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 233,150233.2k $2.4m $2.4m 0.01% Unchanged
43 MIZUHO SECURITIES USA LLC 0.02% of their portfolio NEW YORK, NY 230,000230.0k $2.3m $2.3m 0.02% New
44 HBK INVESTMENTS L P 0.02% of their portfolio DALLAS, TX 200,005200.0k $2.1m $2.1m 0.02% Unchanged
45 K2 PRINCIPAL FUND, L.P. 0.19% of their portfolio TORONTO, A6 200,000200.0k $2.1m $2.1m 0.19% Unchanged
46 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 175,000175.0k $1.8m $1.8m 0.00% Unchanged
47 WOLVERINE ASSET MANAGEMENT LLC 0.02% of their portfolio CHICAGO, IL 150,000150.0k $1.5m $1.5m 0.02% New
48 Context Capital Management, LLC 0.03% of their portfolio LAJOLLA, CA 150,000150.0k $1.5m $1.5m 0.03% Unchanged
49 First Trust Capital Management L.P. 0.09% of their portfolio CHICAGO, IL 149,995150.0k $1.5m $1.5m 0.09% Unchanged
50 BERKLEY W R CORP 0.08% of their portfolio Greenwich, CT 149,955150.0k $1.5m $1.5m 0.08% Unchanged
51 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 138,933138.9k $1.4m $1.4m 0.00% Reduced -45.0k -44,974
52 SONA ASSET MANAGEMENT (US) LLC 0.04% of their portfolio NEW YORK, NY 102,723102.7k $1.1m $1.1m 0.04% Unchanged
53 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 55,07555.1k $565.6k $565.6k 0.00% Unchanged
54 Galaxy Digital Inc. 0.08% of their portfolio NEW YORK, NY 50,00050.0k $513.5k $513.5k 0.08% Unchanged
55 O'Connor Alternative Investments LLC 0.04% of their portfolio NEW YORK, NY 50,00050.0k $513.5k $513.5k 0.04% Unchanged
56 PenderFund Capital Management Ltd. 0.04% of their portfolio VANCOUVER, A1 26,60026.6k $273.2k $273.2k 0.04% Added +16.6k +16,600
57 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 24,00024.0k $246.5k $246.5k 0.00% Unchanged
58 Mint Tower Capital Management B.V. 0.02% of their portfolio AMSTERDAM, P7 20,00020.0k $205.0k $205.0k 0.02% Unchanged
59 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 22 $21 $21 0.00% Reduced -24.6k -24,565