Ticker · CUSIP 85916J409
Holders (tracked)
5
Combined shares
675,540
Combined value
$1.33M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-2 vs previous quarter over the last 8.
SEC event timeline
8 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−102,429 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−294,159 shares · 2025Q413F
- T. Rowe Price added2026-02-17+10,235 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,972 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+68,000 shares · 2025Q413F
- AQR Capital Management added2025-11-14+3,141 shares · 2025Q313F
- Two Sigma Investments opened position2025-11-14+361,888 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+336,600 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Renaissance Technologies+68,000$156K
- T. Rowe Price+10,235$24
Trimmed2
- Two Sigma Investments−294,159$677K
- AQR Capital Management−1,972$5K
Exited1
- Ken Griffin (Citadel Advisors)−102,429$319K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $185.2M |
| 2022Q2 | 10 | $73.6M |
| 2022Q3 | 8 | $6K |
| 2022Q4 | 9 | $3.5M |
| 2023Q1 | 9 | $3.0M |
| 2023Q2 | 8 | $2.1M |
| 2023Q3 | 7 | $2.0M |
| 2023Q4 | 7 | $2.2M |
| 2024Q1 | 7 | $4.9M |
| 2024Q2 | 6 | $7.5M |
| 2024Q3 | 5 | $858K |
| 2024Q4 | 5 | $1.2M |
| 2025Q1 | 7 | $477K |
| 2025Q2 | 4 | $185K |
| 2025Q3 | 7 | $2.8M |
| 2025Q4 | 5 | $1.3M |
Who owns STXS
5 super-investors · 2025Q4
Tracked stake
675.5K
shares
Combined value
$1M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added2Trim2Sold1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 448.4K | $1M |
| 2 | Two Sigma Investments | 67.7K | $156K |
| 3 | AQR Capital Management | 34.5K | $79K |
| 4 | Ken Griffin Citadel Advisors | 29.7K | $68K |
| 5 | T. Rowe Price | 95.2K | $220 |
Recent moves
20 transactions
- +10,235 · 2025Q4
- −294,159 · 2025Q4
- −102,429 · 2025Q4
- −1,972 · 2025Q4
- +68,000 · 2025Q4
- +361,888 · 2025Q3
- +3,141 · 2025Q3
- +336,600 · 2025Q3
- −19,975 · 2025Q2
- +22,087 · 2025Q2
- +4,974 · 2025Q2
- −78,309 · 2025Q2
- +19,975 · 2025Q1
- +11,234 · 2025Q1
- −284,091 · 2025Q1
- +3,813 · 2024Q4
- +44,000 · 2024Q4
- −126,500 · 2024Q3
- +17,799 · 2024Q2
- −725,237 · 2024Q2
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