Latest Period
Q1 2026
Security Snapshot
Bain Capital GSS Investment Corp. - Class A ordinary shares, par value $0.0001 per share (BCSS) Institutional Ownership
CUSIP: G0R78B106
13F Institutional Holders and Ownership History from Q4 2025 to Q1 2026
Institutions Reporting
63
Shares (Excl. Options)
40,172,756
Price
$10.11
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- Security type / class
- Equity / Class A ordinary shares, par value $0.0001 per share
- Symbol
- BCSS on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 40,172,756
- Total 13F value
- $406,202,081
- Portfolio coverage rank
- 0%
- Share change
- +10,123,220
- Value change
- +$102,370,619
- Number of holders
- 63
- Shares outstanding
- 46,875,173
- SEC-reported price per share
- $10.17
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BCSS - Bain Capital GSS Investment Corp. - Class A ordinary shares, par value $0.0001 per share is tracked under CUSIP G0R78B106.
- 63 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 49 to 63 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $302,170,644 to $406,202,081.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 63 institutions filings for Q1 2026.
Security key
G0R78B106
Latest holder period
Q1 2026
13F holders
63
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
BCSS full holder history
Bain Capital GSS Investment Corp. SEC filings
Bain Capital GSS Investment Corp. company facts
Bain Capital GSS Investment Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G0R78B106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
BCSS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Bain Capital GSS Investment Sponsor LLC | 21% | 12,370,000 | Bain Capital GSS Investment Sponsor LLC | 01 Oct 2025 | ||||
| Empyrean Capital Partners, LP | 9.3% | $43,891,694 | 4,340,641 | Empyrean Capital Partners, LP | 31 Mar 2026 | |||
| Fort Baker Capital Management LP | 8.5% | +43% | $40,257,624 | +$12,150,400 | 3,981,252 | +43% | Fort Baker Capital Management LP | 31 Mar 2026 |
| Adage Capital Management, L.P. | 6.4% | $30,390,000 | 3,000,000 | Adage Capital Management, L.P. | 31 Dec 2025 |
As of 31 Mar 2026, 63 institutional investors reported holding 40,172,756 shares of Bain Capital GSS Investment Corp. - Class A ordinary shares, par value $0.0001 per share (BCSS). This represents 86% of the company’s total 46,875,173 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
68%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Empyrean Capital Partners, LP | 8.5% | 3,990,000 | 1.3% | $40,346,082 | |
| Fort Baker Capital Management LP | 8.5% | 3,981,252 | +43% | 3.6% | $40,257,624 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 6.4% | 3,000,000 | 0% | 0.05% | $30,335,400 |
| Sculptor Capital LP | 3.7% | 1,723,855 | 0% | 0.2% | $17,431,277 |
| Mercuria Capital Strategies, LLC | 3.3% | 1,545,878 | 0% | 6% | $15,631,609 |
| MOORE CAPITAL MANAGEMENT, LP | 3.2% | 1,500,000 | 0% | 0.55% | $15,167,700 |
| Davidson Kempner Capital Management LP | 3% | 1,400,000 | 0% | 0.3% | $14,156,520 |
| AQR Arbitrage LLC | 2.5% | 1,149,424 | -3% | 0.19% | $11,622,746 |
| HighTower Advisors, LLC | 2.4% | 1,138,966 | -3.9% | 0.01% | $11,516,996 |
| METEORA CAPITAL, LLC | 2.3% | 1,098,294 | -0.97% | 0.82% | $11,105,729 |
| LuminArx Capital Management LP | 2.1% | 1,003,379 | 7.7% | $10,145,968 | |
| ARISTEIA CAPITAL, L.L.C. | 2.1% | 1,000,000 | 0% | 0.23% | $10,111,800 |
| Polar Asset Management Partners Inc. | 2.1% | 1,000,000 | 0% | 0.24% | $10,111,800 |
| Ghisallo Capital Management LLC | 2.1% | 1,000,000 | 0.28% | $10,111,800 | |
| MILLENNIUM MANAGEMENT LLC | 2% | 957,560 | +55% | 0.01% | $9,682,655 |
| TWO SIGMA INVESTMENTS, LP | 1.8% | 854,756 | 0% | 0.01% | $8,643,122 |
| J. Goldman & Co LP | 1.5% | 700,000 | -27% | 0.33% | $7,078,260 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1.5% | 700,000 | 0.01% | $7,078,260 | |
| PICTON MAHONEY ASSET MANAGEMENT | 1.5% | 700,000 | 0% | 0.07% | $7,078,260 |
| Decagon Asset Management LLP | 1.4% | 656,944 | +16% | 1.7% | $6,642,886 |
| Linden Advisors LP | 1.3% | 600,000 | 0% | 0.03% | $6,067,080 |
| Shaolin Capital Management LLC | 1.2% | 567,433 | +62% | 0.48% | $5,737,769 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.2% | 546,251 | 0% | $5,523,690 | |
| Saba Capital Management, L.P. | 1.1% | 535,580 | 0% | 0.17% | $5,415,678 |
| Lighthouse Investment Partners, LLC | 1.1% | 500,000 | 0% | 0.19% | $5,055,900 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
2
Latest
Q1 2026
Rows shown
1-2 of 2