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BCSS · Bain Capital GSS Investment Corp. · Holdings

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$10.21 +0.04 (+0.39%)
Market Cap
$595.68M
Shares
58.40M
Volume · Oct 20 8600 Avg daily vol (3M) 67.48K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
Holders: 59
Total Value: $426,191,018
Total Shares: 41,816,145

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 59 13F filers · Δ vs Mar 31, 2026
Top Holder
10.2%
Dec 2025 → Jun 2026 · range 9.9% – 10.2%
+0.3 pts
Top 5
35.1%
Dec 2025 → Jun 2026 · range 35.1% – 35.4%
−0.3 pts
Top 10
52.3%
Dec 2025 → Jun 2026 · range 51.1% – 54.8%
+1.2 pts
HHI
414
Dec 2025 → Jun 2026 · range 408 – 429
Broadly held+6

Who Holds BCSS

Last 3 quarters through Jun 30, 2026

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026: 59 filers, like-for-like change +3.3%; actively managed books +2.8%; index-like books +35.4%.

Holder type Share Filers Change
Registered adviser 79.4% 37 +3.9%
Exempt adviser 1.0% 1 0.0%
Adviser 2.4% 2 -12.6%
Bank 0.6% 3 -9.6%
Insurer 0.4% 1 0.0%
Benefit plan 0.1% 1 0.0%
Non-US 8.2% 5 +91.4%
Unknown 8.0% 9 -32.7%
How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

59 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
3
5.08% of filers hold it in their top 10
Mar 31, 2026: 3
Holders above 5%
2
median weight 0.143%
Mar 31, 2026: 3
Crowding
—
the issuer has more than one class of common stock, so its count is the total across classes
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
the issuer has more than one class of common stock, so its count is the total across classes
Top 10 holders
52.3%
of 13F shares, Herfindahl 0.041
Active holders
+2.8%
like-for-like share change of active filers
5% stakes on record
2
0 13D, 2 13G (1 institutional, 0 passive, 1 exempt)
How long holders have held it value-weighted 2.7 quarters
Under 1 year 100.0% 1 to 3 years 0.000% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$10.11
estimated per share
Mar 31, 2026: $10.10
Quarter-end price
$10.27
implied by 13F values
Estimated gain or loss
+1.6%
price against the estimated cost
Estimated at a loss
0.000%
of costed 13F value

Estimated cost covers 97.7% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies BCSS's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 NSTR NorthStar Earth & Space Enterprises, Inc. 20
2 FCRS FutureCrest Acquisition Corp. 20
3 SAC Safeguard Acquisition Corp. 18
4 CEPF Cantor Equity Partners IV, Inc. 23
5 JENA JENA ACQUISITION Corp II 17
6 FVAV Fortress Value Acquisition Corp. V 17
7 RNGT Range Capital Acquisition Corp II 19
8 RAC Rithm Acquisition Corp. 16
9 EVAC EQV Ventures Acquisition Corp. II 21
10 KPET KPET Ultra Paceline Corp 13

Shareholder Targets

13F filers that own its peers but not BCSS, quarter ended Jun 30, 2026

Found through its holder-overlap peers: NSTR, FCRS, SAC, CEPF, JENA, FVAV, RNGT, RAC, EVAC, KPET, ALUB, SBXE, TVIV, YICC, CEPS, BBCQ, CCIX, KRSP, CAES, CCII. 121 filers in all.

# Filer In peers
1 Harraden Circle Investments, LLC Registered adviser, Diversified active $134,306,804 10 held
2 D. E. Shaw & Co., Inc. Unknown, Systematic-like $112,250,781 16 held
3 LMR Partners LLP Exempt adviser, Systematic-like $85,347,216 12 held
4 Governors Lane LP Registered adviser, Diversified active $66,017,998 15 held
5 MMCAP International Inc. SPC Unknown, Diversified active $58,148,750 8 held
6 WHITEBOX ADVISORS LLC Registered adviser, Diversified active $46,633,850 18 held
7 BlueCrest Capital Management Ltd Unknown, Concentrated $35,473,750 8 held
8 Alyeska Investment Group, L.P. Registered adviser, Systematic-like $33,668,549 2 held
9 Wealthspring Capital LLC Registered adviser, Diversified active $30,856,433 8 held
10 Yaupon Capital Management LP Registered adviser, Diversified active $29,261,784 3 held

Fund Ownership of BCSS by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 0.00% 0
Index ETFs 0.00% 0
Active ETFs 0.00% 0
Active funds 0.60% 349,210
Unclassified 0.00% 0
All registered funds 0.60% 349,210
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Quarterly Activity

vs Mar 31, 2026
New
3
Increased
11
Decreased
12
Sold Out
7
Unchanged
32

New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.

Holder count: -4
Institutional value: +4.9%
Shares held: +3.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 61 of 61
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Holder Value (USD) % of 13F Shares Open
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