Stereotaxis, Inc.
Stereotaxis, Inc. (STXS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · STXS · as of Sep 30, 2025
Ownership Breakdown
107
Institutional Holders
▲ 16 vs Q2
$130.31M
Total Inst. Value
▲ $44.03M vs Q2
97.74M
Shares Outstanding
freeFloat 70.68%
41.89M
13F Shares Held
▲ 1.20M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
STXS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
DAFNA CAPITAL MANAGEMENT LLC electromedical & electrotherapeutic apparatus | 13.68M | 15.57% | 15.57% | $42.55B | Nov 14, 2025 | — held |
LAGODA INVESTMENT MANAGEMENT, L.P. electromedical & electrotherapeutic apparatus | 4.71M | 5.36% | 5.36% | $14.64B | Nov 14, 2025 | ▲ 19.5K |
BLACKROCK, INC. electromedical & electrotherapeutic apparatus | 3.98M | 4.53% | 4.53% | $12.37B | Nov 12, 2025 | ▲ 90.7K |
VANGUARD GROUP INC electromedical & electrotherapeutic apparatus | 3.44M | 3.92% | 3.92% | $10.70B | Nov 7, 2025 | ▲ 138.5K |
ARBITER PARTNERS CAPITAL MANAGEMENT LLC electromedical & electrotherapeutic apparatus | 2.85M | 3.25% | 3.25% | $8.88B | Nov 12, 2025 | — held |
ESSEX INVESTMENT MANAGEMENT CO LLC electromedical & electrotherapeutic apparatus | 1.60M | 1.82% | 1.82% | $4.97B | Nov 6, 2025 | ▲ 53.4K |
GEODE CAPITAL MANAGEMENT, LLC electromedical & electrotherapeutic apparatus | 1.51M | 1.72% | 1.72% | $4.70B | Nov 12, 2025 | ▲ 31.5K |
ARCHON CAPITAL MANAGEMENT LLC electromedical & electrotherapeutic apparatus | 1.23M | 1.40% | 1.40% | $3.81B | Nov 14, 2025 | ▼ 57.9K |
WARBERG ASSET MANAGEMENT LLC electromedical & electrotherapeutic apparatus | 1.05M | 1.19% | 1.19% | $3.29B | Nov 6, 2025 | ▼ 151.6K |
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. electromedical & electrotherapeutic apparatus | 901.3K | 1.03% | 1.03% | $2.80B | Nov 6, 2025 | ▼ 238.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
22
Increased
+1.29M shares6
New Positions
first time holders11
Decreased
−564.6K shares0
Sold Out
fully exitedNet shares change (top 50)
+727.8K
+1.29M / −564.6K
Net new holders
+17
6 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
STXS insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
1
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Peery Kimberly R. Chief Financial Officer | Apr 11, 2026 | Award | 40,000 | $1.87 | $74.8K | 340.8K | Form 4 ↗ |
Menawat Arun Swarup director | Jan 2, 2026 | Award | 46,948 | — | — | 992.5K | Form 4 ↗ |
Benfer David director | Jan 2, 2026 | Award | 46,948 | — | — | 515.9K | Form 4 ↗ |
Curet Myriam director | Jan 2, 2026 | Award | 46,948 | — | — | 392.1K | Form 4 ↗ |
Fischel Nathan
| Jan 2, 2026 | Award | 46,948 | — | — | 677.7K | Form 4 ↗ |
Levin Ross B director | Jan 2, 2026 | Award | 46,948 | — | — | 578.1K | Form 4 ↗ |
SHAMIR NACHUM director | Jan 2, 2026 | Award | 46,948 | — | — | 136.2K | Form 4 ↗ |
Isaac Paul J See Remarks | Nov 14, 2025 | Purchase | 20,000 | $2.24 | $44.8K | 2.79M | Form 4 ↗ |
Isaac Paul J See Remarks | Nov 17, 2025 | Purchase | 10,000 | $2.18 | $21.8K | 97.3K | Form 4 ↗ |
Fischel Nathan
| Jul 1, 2025 | Award | 43,668 | — | — | 630.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Stereotaxis, Inc. (STXS) is primarily owned by institutional investors, who hold approximately 42.9% of total shares outstanding. Company insiders own approximately 29.32%, while retail and public investors account for the remaining 27.81%.
The largest institutional shareholder of Stereotaxis, Inc. is DAFNA CAPITAL MANAGEMENT LLC, holding approximately 13.68 million shares — equal to 15.57% of outstanding shares — as of September 30, 2025.
A total of 107 institutional investors currently hold STXS stock, with a combined institutional value of approximately $130,307,870 as of the most recent 13F filing period.
Frequently asked questions
STXS ownershipStereotaxis, Inc. (STXS) is primarily owned by institutional investors, who hold approximately 42.9% of shares. The largest shareholder is DAFNA CAPITAL MANAGEMENT LLC with a 15.57% stake. Company insiders hold 29.32%. Data sourced from SEC Form 13F as of September 30, 2025.