STRATASYS LTD (SSYS) Stock Institutional Trading Activity
STRATASYS LTD (SSYS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Polen Capital Management, ARK Invest, Disciplined Growth Investors, and Mairs & Power Growth Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- STRATASYS LTD (SSYS) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2015 | Disciplined Growth Investors | Sell | -5,825 | 141,884 | $3,331 |
| Q3 2015 | Mairs & Power Growth Fund | Buy | 51,050 | 1,534,238 | $40,642 |
| Q3 2015 | Disciplined Growth Investors | Buy | 1,650 | 147,709 | $3,913 |
| Q2 2015 | Mairs & Power Growth Fund | Buy | 453,890 | 1,483,188 | $51,808 |
| Q2 2015 | Disciplined Growth Investors | Buy | 550 | 146,059 | $5,102 |
| Q1 2015 | Mairs & Power Growth Fund | Buy | 1,001,735 | 1,029,298 | $54,326 |
| Q1 2015 | Renaissance Technologies LLC | Sell | -61,907 | 213,125 | $11,249 |
| Q1 2015 | Disciplined Growth Investors | Buy | 2,875 | 145,509 | $7,680 |
| Q4 2014 | Mairs & Power Growth Fund | Sell | -2,817 | 27,563 | $2,291 |
| Q4 2014 | Renaissance Technologies LLC | Buy | 225,800 | 275,032 | $22,858 |
| Q4 2014 | Tiger Global Management | Buy | 275,000 | 600,000 | $49,866 |
| Q4 2014 | Disciplined Growth Investors | Sell | -5,900 | 142,634 | $11,854 |
| Q3 2014 | Disciplined Growth Investors | Sell | -25,975 | 148,534 | $17,940 |
| Q2 2014 | Disciplined Growth Investors | Sell | -59,150 | 174,509 | $23,506 |
| Q1 2014 | Mairs & Power Growth Fund | Sell | -800 | 30,380 | $3,223 |
| Q1 2014 | Disciplined Growth Investors | Buy | 57,250 | 233,659 | $17,342 |
| Q4 2013 | Mairs & Power Growth Fund | Sell | -550 | 31,180 | $4,200 |
| Q4 2013 | Tiger Global Management | Sell | -975,000 | 325,000 | $43,778 |
| Q4 2013 | Disciplined Growth Investors | Sell | -6,450 | 176,409 | $23,762 |
| Q3 2013 | Mairs & Power Growth Fund | Buy | 2,700 | 31,730 | $3,213 |
| Q3 2013 | Renaissance Technologies LLC | Buy | 49,232 | 49,232 | $4,985 |
| Q3 2013 | Disciplined Growth Investors | Sell | -49,200 | 182,859 | $18,516 |
| Q2 2013 | Mairs & Power Growth Fund | Buy | 29,030 | 29,030 | $2,431 |
| Q2 2013 | Tiger Global Management | Buy | 1,300,000 | 1,300,000 | $108,862 |
| Q2 2013 | Disciplined Growth Investors | Buy | 232,059 | 232,059 | $19,433 |
Frequently asked questions about SSYS activity
Which institutional owners are buying SSYS?
Institutional owners buying SSYS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in SSYS activity?
"Buy" means an investor increased their reported position in SSYS compared to the prior reporting period. This reflects growing exposure to STRATASYS LTD (SSYS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in SSYS increasing?
Institutional interest in SSYS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.