Who owns SuRo Capital Corp. (SSSS)
Which tracked institutional funds hold SSSS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SSSS company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
10 tracked funds added or opened SSSS while 5 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SSSS’s largest tracked holder by dollar value, GABELLI FUNDS LLC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SSSS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 73 tracked filers holding SSSS, 35 increased or opened the position and 38 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SSSS between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 2
- Kingsview Wealth Management, LLC$3M
- J. Goldman & Co LP$1M
Full exits 1
- Supplemental Annuity Collective Trust of NJ$675K
Largest adds
- GABELLI FUNDS LLC$2M
- FRANKLIN RESOURCES INC$1M
- GatePass Capital, LLC$619K
- NEEDHAM INVESTMENT MANAGEMENT LLC$542K
- LPL Financial LLC$518K
- INTREPID FAMILY OFFICE LLC$395K
Largest trims
- ACADIAN ASSET MANAGEMENT LLC$898K
- TWO SIGMA INVESTMENTS, LP$772K
- BlackRock, Inc.$465K
- JANE STREET GROUP, LLC$259K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| GABELLI FUNDS LLC added | 1,304,102 | $14M | 21.3% | 2026-Q1 |
| GatePass Capital, LLC trimmed | 505,900 | $5M | 8.2% | 2026-Q1 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 426,594 | $5M | 7.0% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 300,695 | $3M | 4.9% | 2026-Q1 |
| Kingsview Wealth Management, LLC new | 265,258 | $3M | 4.3% | 2026-Q1 |
| MGO ONE SEVEN LLC trimmed | 261,971 | $3M | 4.3% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 244,500 | $3M | 4.0% | 2026-Q1 |
| LPL Financial LLC added | 202,473 | $2M | 3.3% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 197,053 | $2M | 3.2% | 2026-Q1 |
| INTREPID FAMILY OFFICE LLC added | 125,000 | $1M | 2.0% | 2026-Q1 |
| J. Goldman & Co LP trimmed | 120,700 | $1M | 2.0% | 2026-Q1 |
| BlackRock, Inc. trimmed | 90,156 | $966K | 1.5% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 71,188 | $762K | 1.2% | 2026-Q1 |
| Private Advisor Group, LLC added | 69,034 | $739K | 1.1% | 2026-Q1 |
| MORGAN STANLEY added | 65,886 | $706K | 1.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 65,664 | $703K | 1.1% | 2026-Q1 |
| Janney Montgomery Scott LLC | 59,472 | $637K | 1.0% | 2026-Q1 |
| Green Alpha Advisors, LLC added | 58,611 | $628K | 1.0% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 54,095 | $579K | 0.9% | 2026-Q1 |
| Stratos Wealth Partners, LTD. added | 51,915 | $556K | 0.8% | 2026-Q1 |
| HARBOR CAPITAL ADVISORS, INC. trimmed | 50,850 | $545K | 0.8% | 2026-Q1 |
| MANGROVE PARTNERS IM, LLC trimmed | 46,579 | $499K | 0.8% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 42,476 | $455K | 0.7% | 2026-Q1 |
| Catalyst Capital Advisors LLC | 42,466 | $455K | 0.7% | 2026-Q1 |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC added | 40,764 | $437K | 0.7% | 2026-Q1 |
| XTX Topco Ltd added | 36,338 | $389K | 0.6% | 2026-Q1 |
| Trexquant Investment LP trimmed | 32,946 | $353K | 0.5% | 2026-Q1 |
| Cresset Asset Management, LLC added | 32,881 | $352K | 0.5% | 2026-Q1 |
| Thomas J. Herzfeld Advisors, Inc. trimmed | 32,518 | $348K | 0.5% | 2026-Q1 |
| Pathstone Holdings, LLC trimmed | 32,298 | $346K | 0.5% | 2026-Q1 |
| UBS Group AG added | 31,913 | $342K | 0.5% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 31,262 | $335K | 0.5% | 2026-Q1 |
| Hillsdale Investment Management Inc. trimmed | 29,900 | $320K | 0.5% | 2026-Q1 |
| Texas Capital Bank Wealth Management Services Inc new | 28,000 | $300K | 0.5% | 2026-Q1 |
| Wellington Shields & Co., LLC added | 26,338 | $282K | 0.4% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 25,983 | $278K | 0.4% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 25,199 | $271K | 0.4% | 2026-Q1 |
| RITHOLTZ WEALTH MANAGEMENT added | 24,264 | $260K | 0.4% | 2026-Q1 |
| Byrne Asset Management LLC trimmed | 24,040 | $257K | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 22,779 | $244K | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 22,172 | $237K | 0.4% | 2026-Q1 |
| Granahan Investment Management, LLC | 21,549 | $231K | 0.4% | 2026-Q1 |
| Tactive Advisors, LLC trimmed | 18,200 | $195K | 0.3% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 16,760 | $179K | 0.3% | 2026-Q1 |
| Marex Group plc trimmed | 16,001 | $171K | 0.3% | 2026-Q1 |
| HAZLETT, BURT & WATSON, INC. added | 14,930 | $159K | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 12,486 | $134K | 0.2% | 2026-Q1 |
| Coastal Bridge Advisors, LLC | 11,274 | $121K | 0.2% | 2026-Q1 |
| Farther Finance Advisors, LLC trimmed | 6,978 | $80K | 0.1% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 3,703 | $40K | 0.1% | 2026-Q1 |
| Avion Wealth | 3,001 | $32K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 3,085 | $31K | 0.0% | 2026-Q1 |
| Hickory Point Bank & Trust new | 2,000 | $21K | 0.0% | 2026-Q1 |
| HARBOUR INVESTMENTS, INC. added | 1,740 | $19K | 0.0% | 2026-Q1 |
| Strive Financial Group ,LLC | 1,695 | $18K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 1,613 | $17K | 0.0% | 2026-Q1 |
| N.E.W. Advisory Services LLC | 1,100 | $12K | 0.0% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP added | 1,093 | $11K | 0.0% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD new | 876 | $9K | 0.0% | 2026-Q1 |
| Allworth Financial LP added | 493 | $5K | 0.0% | 2026-Q1 |
| Bulldog Investors, LLP trimmed | 121,453 | $1M | 1.7% | 2025-Q3 stale |
| NJ State Employees Deferred Compensation Plan | 94,114 | $847K | 1.3% | 2025-Q3 stale |
| Supplemental Annuity Collective Trust of NJ trimmed | 71,507 | $675K | 1.0% | 2025-Q4 stale |
| EJF Capital LLC added | 79,111 | $650K | 1.0% | 2025-Q2 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 107,456 | $534K | 0.8% | 2025-Q1 stale |
| MILLENNIUM MANAGEMENT LLC added | 45,834 | $413K | 0.6% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP added | 44,000 | $396K | 0.6% | 2025-Q3 stale |
| WOLVERINE TRADING, LLC added | 74,295 | $377K | 0.6% | 2025-Q1 stale |
| Cambridge Investment Research Advisors, Inc. added | 33,109 | $313K | 0.5% | 2025-Q4 stale |
| PRELUDE CAPITAL MANAGEMENT, LLC | 36,500 | $300K | 0.5% | 2025-Q2 stale |
| IMC-Chicago, LLC new | 30,330 | $286K | 0.4% | 2025-Q4 stale |
| MARSHALL WACE, LLP added | 31,695 | $285K | 0.4% | 2025-Q3 stale |
| Qube Research & Technologies Ltd added | 24,158 | $228K | 0.3% | 2025-Q4 stale |
| Virtu Financial LLC trimmed | 23,082 | $208K | 0.3% | 2025-Q3 stale |
| Quadrature Capital Ltd added | 20,833 | $188K | 0.3% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC trimmed | 17,443 | $157K | 0.2% | 2025-Q3 stale |
| Heron Bay Capital Management new | 14,513 | $137K | 0.2% | 2025-Q4 stale |
| Verition Fund Management LLC new | 13,987 | $126K | 0.2% | 2025-Q3 stale |
| CHOREO, LLC added | 23,931 | $119K | 0.2% | 2025-Q1 stale |
| Dynamic Technology Lab Private Ltd added | 12,645 | $114K | 0.2% | 2025-Q3 stale |
| Arete Wealth Advisors, LLC added | 22,785 | $113K | 0.2% | 2025-Q1 stale |
| Atria Wealth Solutions, Inc. new | 13,400 | $110K | 0.2% | 2025-Q2 stale |
| SIMPLEX TRADING, LLC added | 9,347 | $88K | 0.1% | 2025-Q4 stale |
| GROUP ONE TRADING LLC trimmed | 8,860 | $84K | 0.1% | 2025-Q4 stale |
| Riverwater Partners LLC trimmed | 16,694 | $83K | 0.1% | 2025-Q1 stale |
| LEVIN CAPITAL STRATEGIES, L.P. trimmed | 10,000 | $82K | 0.1% | 2025-Q2 stale |
| Rangeley Capital, LLC trimmed | 14,950 | $74K | 0.1% | 2025-Q1 stale |
| Jump Financial, LLC trimmed | 11,783 | $59K | 0.1% | 2025-Q1 stale |
| Legato Capital Management LLC trimmed | 11,522 | $57K | 0.1% | 2025-Q1 stale |
| Wealth Preservation Advisors, LLC | 3,448 | $33K | 0.0% | 2025-Q4 stale |
| Pinnacle Holdings, LLC | 1,329 | $13K | 0.0% | 2025-Q4 stale |
| STEPH & CO | 1,500 | $12K | 0.0% | 2025-Q2 stale |
| Darwin Wealth Management, LLC | 850 | $8K | 0.0% | 2025-Q4 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 765 | $7K | 0.0% | 2025-Q3 stale |
| Rockefeller Capital Management L.P. added | 500 | $5K | 0.0% | 2025-Q4 stale |
| Tower Research Capital LLC (TRC) added | 338 | $3K | 0.0% | 2025-Q4 stale |
| Larson Financial Group LLC trimmed | 321 | $3K | 0.0% | 2025-Q4 stale |
| Quarry LP added | 248 | $2K | 0.0% | 2025-Q4 stale |
| SIERRA OCEAN, LLC | 243 | $2K | 0.0% | 2025-Q2 stale |
| Chung Wu Investment Group, LLC | 200 | $2K | 0.0% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.