Who owns SSYS (SSYS)
Which tracked institutional funds hold SSYS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SSYS 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
17 tracked funds added or opened SSYS while 30 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
SSYS’s largest tracked holder by dollar value, Rubric Capital Management LP, sizes it at 0.8% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.8pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SSYS 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 148 tracked filers holding SSYS, 69 increased or opened the position and 65 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 SSYS 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 7
- SEGALL BRYANT & HAMILL, LLC$10M
- STATE OF MICHIGAN RETIREMENT SYSTEM$4M
- Round Rock Advisors LLC$2M
- ExodusPoint Capital Management, LP$719K
- GFS Advisors, LLC$718K
- MOODY NATIONAL BANK TRUST DIVISION$561K
Full exits 5
- Migdal Insurance & Financial Holdings Ltd.$18M
- Clearline Capital LP$5M
- Monaco Asset Management SAM$998K
- MILLENNIUM MANAGEMENT LLC$846K
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$604K
Largest adds
- Ulysses Management LLC$4M
- CITADEL ADVISORS LLC$2M
- TUDOR INVESTMENT CORP ET AL$1M
- BlackRock, Inc.$917K
- MARSHALL WACE, LLP$803K
- Legal & General Group Plc$533K
Largest trims
- Phoenix Financial Ltd.$5M
- NEUBERGER BERMAN GROUP LLC$4M
- ROYCE & ASSOCIATES LP$3M
- JANE STREET GROUP, LLC$3M
- Invenomic Capital Management LP$3M
- UBS Group AG$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 |
|---|---|---|---|---|
| Rubric Capital Management LP added | 8,000,000 | $62M | 17.2% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 4,315,489 | $34M | 9.3% | 2026-Q1 |
| Phoenix Financial Ltd. trimmed | 3,439,306 | $27M | 7.4% | 2026-Q1 |
| Invenomic Capital Management LP trimmed | 2,037,384 | $16M | 4.4% | 2026-Q1 |
| EXCHANGE TRADED CONCEPTS, LLC added | 1,835,681 | $14M | 4.0% | 2026-Q1 |
| STATE STREET CORP added | 1,572,577 | $12M | 3.4% | 2026-Q1 |
| Capital World Investors | 1,357,460 | $11M | 2.9% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC new | 1,160,030 | $10M | 2.7% | 2026-Q1 |
| Legal & General Group Plc added | 1,215,245 | $9M | 2.6% | 2026-Q1 |
| RPG Investment Advisory, LLC added | 1,130,902 | $9M | 2.4% | 2026-Q1 |
| Kopion Asset Management, LLC trimmed | 926,799 | $7M | 2.0% | 2026-Q1 |
| FORMULA GROWTH LTD added | 800,000 | $6M | 1.7% | 2026-Q1 |
| PINNACLE ASSOCIATES LTD trimmed | 633,353 | $5M | 1.4% | 2026-Q1 |
| Douglas Lane & Associates, LLC trimmed | 570,564 | $4M | 1.2% | 2026-Q1 |
| Ulysses Management LLC added | 555,000 | $4M | 1.2% | 2026-Q1 |
| UBS Group AG trimmed | 529,413 | $4M | 1.1% | 2026-Q1 |
| STATE OF MICHIGAN RETIREMENT SYSTEM trimmed | 500,000 | $4M | 1.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 481,929 | $4M | 1.0% | 2026-Q1 |
| MORGAN STANLEY added | 466,574 | $4M | 1.0% | 2026-Q1 |
| Nuveen, LLC added | 425,372 | $3M | 0.9% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 416,507 | $3M | 0.9% | 2026-Q1 |
| ARK Investment Management LLC trimmed | 416,428 | $3M | 0.9% | 2026-Q1 |
| MARSHALL WACE, LLP added | 415,331 | $3M | 0.9% | 2026-Q1 |
| Penn Capital Management Company, LLC trimmed | 327,362 | $3M | 0.7% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 323,400 | $3M | 0.7% | 2026-Q1 |
| Tejara Capital Ltd added | 305,000 | $2M | 0.7% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 249,699 | $2M | 0.5% | 2026-Q1 |
| Round Rock Advisors LLC new | 223,922 | $2M | 0.5% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 209,635 | $2M | 0.5% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 216,465 | $2M | 0.4% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 190,050 | $1M | 0.4% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL | 182,067 | $1M | 0.4% | 2026-Q1 |
| BlackRock, Inc. added | 159,601 | $1M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 146,544 | $1M | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 143,395 | $1M | 0.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 133,407 | $1M | 0.3% | 2026-Q1 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P added | 125,000 | $976K | 0.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 109,280 | $853K | 0.2% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. trimmed | 104,584 | $817K | 0.2% | 2026-Q1 |
| Invesco Ltd. added | 100,415 | $784K | 0.2% | 2026-Q1 |
| XTX Topco Ltd added | 100,188 | $782K | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 98,422 | $769K | 0.2% | 2026-Q1 |
| ALPS ADVISORS INC trimmed | 95,514 | $746K | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 92,037 | $719K | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 92,013 | $719K | 0.2% | 2026-Q1 |
| GFS Advisors, LLC new | 2,126 | $718K | 0.2% | 2026-Q1 |
| Harel Insurance Investments & Financial Services Ltd. trimmed | 79,225 | $619K | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 76,067 | $594K | 0.2% | 2026-Q1 |
| MOODY NATIONAL BANK TRUST DIVISION added | 71,816 | $561K | 0.2% | 2026-Q1 |
| RBF Capital, LLC trimmed | 70,000 | $547K | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 69,903 | $546K | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 66,943 | $523K | 0.1% | 2026-Q1 |
| Inspire Investing, LLC added | 66,235 | $517K | 0.1% | 2026-Q1 |
| DNB Asset Management AS new | 63,971 | $500K | 0.1% | 2026-Q1 |
| GROUP ONE TRADING LLC added | 62,356 | $487K | 0.1% | 2026-Q1 |
| BARCLAYS PLC added | 61,745 | $482K | 0.1% | 2026-Q1 |
| Tidal Investments LLC added | 59,238 | $463K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 57,768 | $451K | 0.1% | 2026-Q1 |
| Brevan Howard Capital Management LP added | 45,347 | $354K | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 43,067 | $336K | 0.1% | 2026-Q1 |
| CenterBook Partners LP new | 39,777 | $311K | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 39,097 | $305K | 0.1% | 2026-Q1 |
| Strategic Financial Concepts, LLC new | 25,717 | $295K | 0.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 34,351 | $268K | 0.1% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC | 34,037 | $266K | 0.1% | 2026-Q1 |
| Olympiad Research LP | 34,034 | $266K | 0.1% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP trimmed | 33,766 | $264K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 33,408 | $261K | 0.1% | 2026-Q1 |
| Counterpoint Mutual Funds LLC trimmed | 33,105 | $259K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 32,358 | $253K | 0.1% | 2026-Q1 |
| Migdal Insurance & Financial Holdings Ltd. | 2,130,983 | $18M | 5.1% | 2025-Q4 stale |
| TSP Capital Management Group, LLC added | 944,350 | $11M | 2.9% | 2025-Q3 stale |
| Clearline Capital LP trimmed | 608,684 | $5M | 1.5% | 2025-Q4 stale |
| NORGES BANK trimmed | 425,231 | $5M | 1.4% | 2025-Q1 stale |
| Magnetar Financial LLC new | 281,942 | $3M | 0.9% | 2025-Q2 stale |
| Archon Capital Management LLC trimmed | 241,351 | $2M | 0.7% | 2025-Q1 stale |
| HUSSMAN STRATEGIC ADVISORS, INC. added | 210,000 | $2M | 0.6% | 2025-Q3 stale |
| AMH Equity Ltd | 166,000 | $2M | 0.5% | 2025-Q3 stale |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 165,100 | $2M | 0.5% | 2025-Q3 stale |
| SG Americas Securities, LLC added | 121,629 | $1M | 0.4% | 2025-Q2 stale |
| Monaco Asset Management SAM new | 115,000 | $998K | 0.3% | 2025-Q4 stale |
| BOSUN ASSET MANAGEMENT, LLC added | 81,732 | $937K | 0.3% | 2025-Q2 stale |
| BALYASNY ASSET MANAGEMENT L.P. added | 90,429 | $885K | 0.2% | 2025-Q1 stale |
| MILLENNIUM MANAGEMENT LLC added | 97,516 | $846K | 0.2% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 58,630 | $657K | 0.2% | 2025-Q3 stale |
| IMC-Chicago, LLC trimmed | 58,603 | $656K | 0.2% | 2025-Q3 stale |
| Trexquant Investment LP trimmed | 53,567 | $614K | 0.2% | 2025-Q2 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 69,539 | $604K | 0.2% | 2025-Q4 stale |
| Janney Montgomery Scott LLC trimmed | 52,639 | $590K | 0.2% | 2025-Q3 stale |
| HighTower Advisors, LLC added | 44,034 | $505K | 0.1% | 2025-Q2 stale |
| Virtu Financial LLC trimmed | 42,269 | $473K | 0.1% | 2025-Q3 stale |
| VARCOV Co. new | 52,649 | $457K | 0.1% | 2025-Q4 stale |
| Graham Capital Management, L.P. added | 39,579 | $454K | 0.1% | 2025-Q2 stale |
| Verition Fund Management LLC added | 49,901 | $433K | 0.1% | 2025-Q4 stale |
| BROWN ADVISORY INC added | 37,733 | $369K | 0.1% | 2025-Q1 stale |
| Rafferty Asset Management, LLC new | 32,916 | $369K | 0.1% | 2025-Q3 stale |
| CSS LLC/IL trimmed | 28,571 | $328K | 0.1% | 2025-Q2 stale |
| Quantbot Technologies LP added | 35,989 | $312K | 0.1% | 2025-Q4 stale |
| Centiva Capital, LP added | 26,975 | $302K | 0.1% | 2025-Q3 stale |
| POLEN CAPITAL MANAGEMENT LLC trimmed | 32,493 | $282K | 0.1% | 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.