Updated Jul 16, 2026 · Last SEC filing 2026-06-25
SURO CAPITAL CORP. (SSSS) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-25. 4 Form 8-K material event filings were reported by SSSS in the last 90 days. 2 Form 144 notices of proposed sale were filed for SSSS stock. InsiderAlpha tracks every SSSS SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001509470 |
|---|
| Form 4 filings (90d) | 9 |
|---|---|
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 2 |
| Latest Form 4 filing | 2026-06-25 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| LOTT RONALD M. | Director | S — Open-market sale | 500 | $12.35 | $6K | SEC | |
| Klein Mark D | Chairman, CEO and President | F — Tax withholding / forfeiture | 293.3K | $13.56 | $3.98M | SEC | |
| Green Allison | See Remarks | F — Tax withholding / forfeiture | 41.8K | $13.56 | $567K | SEC | |
| Green Allison | See Remarks | A — Grant or award | 60.0K | $0.00 | — | SEC | |
| Klein Mark D | Chairman, CEO and President | A — Grant or award | 350.0K | $0.00 | — | SEC | |
| Potter Leonard | Director | A — Grant or award | 3.5K | $0.00 | — | SEC | |
| Szuch Richard C. | Director | A — Grant or award | 3.5K | $0.00 | — | SEC | |
| LOTT RONALD M. | Director | A — Grant or award | 3.5K | $0.00 | — | SEC | |
| Mazur Marc | Director | A — Grant or award | 3.5K | $0.00 | — | SEC | |
| Westley Lisa | Director | A — Grant or award | 3.5K | $0.00 | — | SEC | |
| Klein Mark D | Chairman, CEO and President | P — Open-market purchase | 2.5K | $13.25 | $33K | SEC | |
| Klein Mark D | Chairman, CEO and President | P — Open-market purchase | 2.5K | $13.08 | $33K | SEC | |
| Klein Mark D | Chairman, CEO and President | F — Tax withholding / forfeiture | 17.0K | $9.24 | $157K | SEC | |
| Green Allison | See Remarks | F — Tax withholding / forfeiture | 4.2K | $9.24 | $39K | SEC | |
| Green Allison | See Remarks | F — Tax withholding / forfeiture | 4.2K | $9.59 | $41K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for SURO CAPITAL CORP. (SSSS). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Klein Mark D | 4 | $4.04M |
| Green Allison | 2 | $567K |
| LOTT RONALD M. | 2 | $6K |
| Westley Lisa | 1 | — |
| Potter Leonard | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SSSS insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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