SuRo Capital Corp.
SuRo Capital Corp. (SSSS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SSSS · as of Sep 30, 2025
Ownership Breakdown
75
Institutional Holders
▲ 14 vs Q2
$48.16M
Total Inst. Value
▲ $4.44M vs Q2
26.07M
Shares Outstanding
freeFloat 91.66%
5.35M
13F Shares Held
▲ 25,969 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SSSS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
GABELLI FUNDS LLC | 1.47M | 6.21% | 6.21% | $13.27B | Nov 12, 2025 | ▲ 23.5K |
| 496.1K | 2.09% | 2.09% | $4.46B | Oct 29, 2025 | ▼ 16.6K | |
NEEDHAM INVESTMENT MANAGEMENT LLC | 426.6K | 1.80% | 1.80% | $3.84B | Nov 14, 2025 | ▼ 12.0K |
GAMCO INVESTORS, INC. ET AL | 282.5K | 1.19% | 1.19% | $2.54B | Nov 12, 2025 | ▼ 2.5K |
MGO ONE SEVEN LLC | 268.5K | 1.13% | 1.13% | $2.42B | Oct 24, 2025 | ▼ 2.0K |
TWO SIGMA INVESTMENTS, LP | 211.9K | 89.31% | 89.31% | $1.91B | Nov 14, 2025 | ▲ 138.8K |
FRANKLIN RESOURCES INC | 189.7K | 79.95% | 79.95% | $1.71B | Nov 13, 2025 | ▼ 50.8K |
ACADIAN ASSET MANAGEMENT LLC | 176.6K | 74.41% | 74.41% | $1.59B | Nov 13, 2025 | ▲ 32.4K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP | 148.4K | 62.54% | 62.54% | $1.34B | Nov 14, 2025 | ▲ 20.7K |
BLACKROCK, INC. | 143.2K | 60.36% | 60.36% | $1.29B | Nov 12, 2025 | ▲ 143.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
15
Increased
+559.5K shares14
New Positions
first time holders15
Decreased
−417.2K shares0
Sold Out
fully exitedNet shares change (top 50)
+142.4K
+559.5K / −417.2K
Net new holders
+14
14 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SSSS insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
1
Sell transactions
2.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
LOTT RONALD M. director | Apr 28, 2026 | Sale | 10,669 | $12.90 | $137.6K | 10.7K | Form 4 ↗ |
Klein Mark D Chairman, CEO and President | Apr 22, 2026 | Purchase | 2,500 | $13.25 | $33.1K | 1.68M | Form 4 ↗ |
Klein Mark D Chairman, CEO and President | Apr 21, 2026 | Purchase | 2,500 | $13.08 | $32.7K | 1.67M | Form 4 ↗ |
Klein Mark D Chairman, CEO and President | Dec 10, 2025 | Tax Withhold | 17,017 | $9.59 | $163.2K | 1.69M | Form 4 ↗ |
Klein Mark D Chairman, CEO and President | Dec 15, 2025 | Tax Withhold | 17,017 | $9.24 | $157.2K | 1.67M | Form 4 ↗ |
Green Allison See Remarks | Dec 10, 2025 | Tax Withhold | 4,232 | $9.59 | $40.6K | 194.0K | Form 4 ↗ |
Green Allison See Remarks | Dec 15, 2025 | Tax Withhold | 4,232 | $9.24 | $39.1K | 189.8K | Form 4 ↗ |
Klein Mark D Chairman, CEO and President | Nov 21, 2025 | Award | 174,465 | — | — | 1.71M | Form 4 ↗ |
Green Allison See Remarks | Nov 21, 2025 | Award | 956 | — | — | 198.3K | Form 4 ↗ |
LOTT RONALD M. director | Dec 26, 2024 | Sale | 434 | $6.06 | $2.6K | 29.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
SuRo Capital Corp. (SSSS) is primarily owned by institutional investors, who hold approximately 20.5% of total shares outstanding. Company insiders own approximately 8.34%, while retail and public investors account for the remaining 71.13%.
The largest institutional shareholder of SuRo Capital Corp. is GABELLI FUNDS LLC, holding approximately 1.47 million shares — equal to 6.21% of outstanding shares — as of September 30, 2025.
A total of 75 institutional investors currently hold SSSS stock, with a combined institutional value of approximately $48,160,300 as of the most recent 13F filing period.
Frequently asked questions
SSSS ownershipSuRo Capital Corp. (SSSS) is primarily owned by institutional investors, who hold approximately 20.5% of shares. The largest shareholder is GABELLI FUNDS LLC with a 6.21% stake. Company insiders hold 8.34%. Data sourced from SEC Form 13F as of September 30, 2025.