Who owns SLMT (SLMT)
Which tracked institutional funds hold SLMT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SLMT company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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
The tracked-fund tape on SLMT is one-sided between 2025-Q4 and 2026-Q1: 0 added or opened and 10 trimmed or exited — on balance reducing.
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
SLMT’s largest tracked holder by dollar value, Anson Funds Management LP, sizes it at 8.4% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 8.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SLMT 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 29 tracked filers holding SLMT, 13 increased or opened the position and 13 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 SLMT 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.
Largest trims
- ARK Investment Management LLC$9M
- Qube Research & Technologies Ltd$9M
- Electric Capital Partners, LLC$7M
- Anatole Investment Management Ltd$7M
- Alyeska Investment Group, L.P.$4M
- Arrington Capital Management, LLC$1M
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 |
|---|---|---|---|---|
| ARK Investment Management LLC added | 9,687,877 | $8M | 8.1% | 2026-Q1 |
| Electric Capital Partners, LLC | 6,500,000 | $5M | 5.4% | 2026-Q1 |
| Anatole Investment Management Ltd trimmed | 4,920,248 | $4M | 4.1% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 2,930,140 | $2M | 2.5% | 2026-Q1 |
| Alyeska Investment Group, L.P. trimmed | 1,993,351 | $2M | 1.7% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,110,530 | $871K | 0.9% | 2026-Q1 |
| Arrington Capital Management, LLC | 1,099,049 | $862K | 0.9% | 2026-Q1 |
| UBS Group AG added | 513,375 | $402K | 0.4% | 2026-Q1 |
| J. Derek Lewis & Associates Inc. | 167,000 | $312K | 0.3% | 2026-Q1 |
| CANTOR FITZGERALD, L. P. added | 391,657 | $307K | 0.3% | 2026-Q1 |
| Weiss Asset Management LP added | 290,531 | $228K | 0.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 830,662 | $178K | 0.2% | 2026-Q1 |
| Cable Car Capital, LP | 172,222 | $135K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 146,335 | $115K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 86,318 | $68K | 0.1% | 2026-Q1 |
| Requisite Capital Management, LLC new | 55,000 | $43K | 0.0% | 2026-Q1 |
| XTX Topco Ltd trimmed | 52,593 | $41K | 0.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC | 50,970 | $40K | 0.0% | 2026-Q1 |
| PEAK6 LLC | 49,999 | $39K | 0.0% | 2026-Q1 |
| Vanguard Personalized Indexing Management, LLC new | 33,813 | $27K | 0.0% | 2026-Q1 |
| RVW Wealth, LLC | 16,000 | $13K | 0.0% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 15,697 | $12K | 0.0% | 2026-Q1 |
| HighTower Advisors, LLC | 15,000 | $12K | 0.0% | 2026-Q1 |
| MORGAN STANLEY added | 14,481 | $11K | 0.0% | 2026-Q1 |
| HRT FINANCIAL LP trimmed | 15,299 | $11K | 0.0% | 2026-Q1 |
| CITIGROUP INC new | 13,513 | $11K | 0.0% | 2026-Q1 |
| CORA CAPITAL ADVISORS LLC new | 10,000 | $8K | 0.0% | 2026-Q1 |
| NBC SECURITIES, INC. | 550 | $431 | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS | 1 | $1 | 0.0% | 2026-Q1 |
| Anson Funds Management LP new | 2,222,222 | $67M | 71.1% | 2025-Q3 stale |
| GTS SECURITIES LLC new | 26,278 | $788K | 0.8% | 2025-Q3 stale |
| Scientech Research LLC new | 10,278 | $308K | 0.3% | 2025-Q3 stale |
| Marex Group plc new | 10,267 | $308K | 0.3% | 2025-Q3 stale |
| IHT Wealth Management, LLC new | 10,000 | $300K | 0.3% | 2025-Q3 stale |
| SG Americas Securities, LLC new | 9,850 | $296K | 0.3% | 2025-Q3 stale |
| WELLS FARGO & COMPANY/MN new | 8,000 | $240K | 0.3% | 2025-Q3 stale |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new | 11,340 | $213K | 0.2% | 2025-Q3 stale |
| Aristides Capital LLC new | 89,000 | $166K | 0.2% | 2025-Q4 stale |
| State of Wyoming new | 62,202 | $116K | 0.1% | 2025-Q4 stale |
| Engineers Gate Manager LP new | 33,182 | $62K | 0.1% | 2025-Q4 stale |
| MILLENNIUM MANAGEMENT LLC new | 21,998 | $41K | 0.0% | 2025-Q4 stale |
| OLD MISSION CAPITAL LLC new | 11,284 | $21K | 0.0% | 2025-Q4 stale |
| Tower Research Capital LLC (TRC) added | 426 | $13K | 0.0% | 2025-Q3 stale |
| TWO SIGMA SECURITIES, LLC new | 11,709 | $8K | 0.0% | 2025-Q1 stale |
| EverSource Wealth Advisors, LLC new | 150 | $4K | 0.0% | 2025-Q3 stale |
| BANK OF AMERICA CORP /DE/ trimmed | 102 | $191 | 0.0% | 2025-Q4 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
| ROYAL BANK OF CANADA new | 80 | — | 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.