107 tracked 13F filers disclose a position in STXS as of the latest SEC 13F filings, a combined $73.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | DAFNA Capital Management LLC | $25.2M | 13.7M | —Held | Q1 2026 | |
| 2 | Lagoda Investment Management, L.P. | $8.0M | 4.4M | ▼−11% Reduced · −511K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $7.3M | 4.0M | ▼−1.7% Reduced · −68K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $5.5M | 3.0M | →First observed position No prior filed position | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $3.3M | 1.9M | ▲+13% Added · +220K sh | Q2 2026 | |
| 6 | ESSEX INVESTMENT MANAGEMENT CO LLC | $2.6M | 1.5M | ▼−4.3% Reduced · −68K sh | Q2 2026 | |
| 7 | Archon Capital Management LLC | $2.3M | 1.2M | —Held | Q1 2026 | |
| 8 | Warberg Asset Management LLC | $1.9M | 1.1M | ▲+1.3% Added · +15K sh | Q2 2026 | |
| 9 | STATE STREET CORP | $1.6M | 917K | ▼−4.3% Reduced · −41K sh | Q2 2026 | |
| 10 | AlphaCentric Advisors LLC | $1.0M | 600K | —Held | Q2 2026 | |
| 11 | Bank Julius Baer & Co. Ltd, Zurich | $930K | 541K | ▲~0% Added · +1 sh | Q2 2026 | |
| 12 | VANGUARD FIDUCIARY TRUST CO | $975K | 530K | →First observed position No prior filed position | Q1 2026 | |
| 13 | SEI INVESTMENTS CO | $955K | 519K | ▲+109% Added · +270K sh | Q1 2026 | |
| 14 | Legato Capital Management LLC | $882K | 513K | ▲+3.1% Added · +15K sh | Q2 2026 | |
| 15 | NORTHERN TRUST CORP | $914K | 497K | ▲+5.0% Added · +23K sh | Q1 2026 | |
| 16 | State of Wyoming | $829K | 471K | ▼−12% Reduced · −66K sh | Q1 2025 | |
| 17 | Sequoia Financial Advisors, LLC | $700K | 381K | ▲New +381K sh | Q1 2026 | |
| 18 | RENAISSANCE TECHNOLOGIES LLC | $686K | 373K | ▼−17% Reduced · −76K sh | Q1 2026 | |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | $678K | 369K | →First observed position No prior filed position | Q1 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $495K | 269K | ▲+30% Added · +63K sh | Q1 2026 | |
| 21 | PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | $408K | 237K | —Held | Q2 2026 | |
| 22 | UBS Group AG | $437K | 237K | ▲+5.2% Added · +12K sh | Q1 2026 | |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $408K | 221K | —Held | Q1 2026 | |
| 24 | Bank of New York Mellon Corp | $361K | 196K | ▼−3.9% Reduced · −8K sh | Q1 2026 | |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $318K | 173K | ▼−9.3% Reduced · −18K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 12 funds opened a new position in STXS and 13 added to an existing one, while 11 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL CGOOG | 53 funds | $57.9B |
| MICROSOFT CORPMSFT | 52 funds | $114.4B |
| AMAZON.COM INCAMZN | 51 funds | $76.0B |
| NVIDIA CORPNVDA | 50 funds | $166.5B |
| APPLE INCAAPL | 50 funds | $128.3B |
| VISA INC-CLASS A SHARESV | 50 funds | $28.4B |
| JPMORGAN CHASE & COJPM | 50 funds | $23.7B |
| CISCO SYSTEMS INCCSCO | 50 funds | $11.2B |
| ALPHABET INC-CL AGOOGL | 49 funds | $57.5B |
| ELI LILLY & COLLY | 49 funds | $33.7B |
| TESLA INCTSLA | 49 funds | $27.7B |
| MICRON TECHNOLOGY INCMU | 49 funds | $12.5B |
Ranked by how many of STXS's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 17, 2025 | Isaac Paul J | Director | Buy (P) | 10K | $22K |
| Nov 14, 2025 | Isaac Paul J | Director | Buy (P) | 20K | $45K |
| Mar 10, 2025 | Isaac Paul J | Director | Buy (P) | 38K | $69K |
| Mar 7, 2025 | Isaac Paul J | Director | Buy (P) | 1K | $3K |
| Mar 6, 2025 | Isaac Paul J | Director | Buy (P) | 23K | $42K |
| Aug 20, 2024 | Isaac Paul J | Director | Buy (P) | 442 | $831 |
| Aug 19, 2024 | Isaac Paul J | Director | Buy (P) | 812 | $2K |
| Aug 15, 2024 | Isaac Paul J | Director | Buy (P) | 8K | $15K |
| Jun 14, 2024 | Isaac Paul J | Director | Buy (P) | 7K | $13K |
| May 31, 2024 | Isaac Paul J | Director | Buy (P) | 1K | $2K |
| May 29, 2024 | Isaac Paul J | Director | Buy (P) | 3K | $6K |
| May 28, 2024 | Isaac Paul J | Director | Buy (P) | 6K | $11K |
Connected entities for STXS
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/STXS/capital-change-brief"
Use Arkolith's capital_change_brief for STXS. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for STXS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.