Institutional Holders (2026 Q1)
113 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in STXS. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | DAFNA Capital Management LLC | 5.73% | 13,680,554 | $25.2M |
| 2 | Lagoda Investment Management, L.P. | 4.94% | 4,350,400 | $8.0M |
| 3 | Arbiter Partners Capital Management LLC | 3.04% | 2,883,856 | $5.3M |
| 4 | Archon Capital Management LLC | 1.27% | 1,226,044 | $2.3M |
| 5 | AlphaCentric Advisors LLC | 1.10% | 600,000 | $1.1M |
| 6 | Essex Investment Management Co LLC | 0.46% | 1,590,101 | $2.9M |
| 7 | Warberg Asset Management LLC | 0.34% | 1,094,123 | $2.0M |
| 8 | Legato Capital Management LLC | 0.08% | 497,523 | $915K |
| 9 | Wealth Effects LLC | 0.04% | 68,500 | $126K |
| 10 | TCFG Investment Advisors, LLC | 0.04% | 64,015 | $118K |
| 11 | Tcfg Wealth Management, LLC | 0.04% | 64,015 | $118K |
| 12 | Prescott Group Capital Management, L.L.C. | 0.04% | 237,495 | $437K |
| 13 | Thompson Davis & CO., INC. | 0.04% | 29,999 | $55K |
| 14 | Cherry Creek Investment Advisors, Inc. | 0.03% | 36,216 | $67K |
| 15 | Wellington Shields & Co., LLC | 0.02% | 40,079 | $74K |
| 16 | Z3 Capital Partners, LLC | 0.02% | 34,000 | $78K |
| 17 | Daytona Street Capital LLC | 0.01% | 10,000 | $19K |
| 18 | Kovack Advisors, Inc. | 0.01% | 108,904 | $201K |
| 19 | Gmt Capital Corp | 0.01% | 126,581 | $233K |
| 20 | Bridgeway Capital Management, LLC | 0.01% | 221,475 | $408K |
| 21 | Investors Research Corp | 0.01% | 17,950 | $33K |
| 22 | Summit Asset Management, LLC | 0.01% | 22,500 | $41K |
| 23 | Leonteq Securities AG | 0.01% | 74,994 | $138K |
| 24 | Tradewinds Capital Management, LLC | 0.00% | 13,600 | $25K |
| 25 | WealthPLAN Partners, LLC | 0.00% | 13,665 | $25K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|