STEREOTAXIS INC STXS
COM NEW · Common Stock · CUSIP 85916J409 · ISIN US85916J4094
American medical robotics company
- SectorHealth care
- IndustryElectromedical & Electrotherapeutic Apparatus
- HeadquartersSt.Louis, MO
- Websitestereotaxis.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 74.8m as of 2022-10-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $2.07. Options: 4 managers hold calls ($50.6k notional), 3 hold puts ($2.5k).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 72 |
| Q4 2022 | 75 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $212.0k | $0 | 0.00 |
| Q4 2022 | $50.6k | $2.5k | 0.05 |
Biggest buyers
| Lagoda Investment Management, L.P. | Added | +297.7k |
| Legato Capital Management LLC | New | +259.9k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Added | +167.1k |
| Prescott Group Capital Management, L.L.C. | Added | +157.0k |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Added | +143.7k |
| CITADEL ADVISORS LLC | Added | +121.9k |
| Kovack Advisors, Inc. | Added | +97.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | +82.5k |
| NORTH RUN CAPITAL, LP | Added | +71.6k |
| D. E. Shaw & Co., Inc. | Added | +69.7k |
Biggest sellers
| Penn Capital Management Company, LLC | Reduced | -402.8k |
| Opaleye Management Inc. | Reduced | -371.8k |
| Verition Fund Management LLC | Reduced | -194.2k |
| Ergoteles LLC | Reduced | -149.8k |
| GMT Capital Corp | Sold out | -126.6k |
| UBS Group AG | Reduced | -81.6k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -58.9k |
| TWO SIGMA ADVISERS, LP | Reduced | -37.2k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -33.2k |
| MORGAN STANLEY | Reduced | -32.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $20.9k10.1k shares |
| GROUP ONE TRADING LLC | Reduced | $20.7k10.0k shares |
| SIMPLEX TRADING, LLC | New | $9.0k4.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $2.5k1.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | Reduced | $0100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Kaufman Daniel Louis 13G · passive investor new · filed 2026-08-19 | 5.9% |
Fell to 5% or below in the last year: Lagoda Investment Management, L.P. (4.5%, 2026-05-15)
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 1 | $516.8k | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
None reported in Q4 2022.
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| DAFNA Capital Management LLC 7.98% of their portfolio | 13.7m $28.3m | Unchanged |
| Arbiter Partners Capital Management LLC 6.34% of their portfolio | 2.6m $5.3m | Added +18.5k |
| Lagoda Investment Management, L.P. 3.48% of their portfolio | 2.5m $5.2m | Added +297.7k |
| VANGUARD GROUP INC 0.00% of their portfolio | 2.1m $4.4m | Added +1.6k |
| Iron Triangle Partners LP 0.62% of their portfolio | 1.7m $3.5m | Reduced -25.5k |
| Redmile Group, LLC 0.13% of their portfolio | 1.5m $3.1m | Unchanged |
| Opaleye Management Inc. 0.85% of their portfolio | 1.2m $2.5m | Reduced -371.8k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 1.2m $2.4m | Reduced -33.2k |
| BlackRock Inc. 0.00% of their portfolio | 1.0m $2.1m | Added +2.9k |
| Rhenman & Partners Asset Management AB 0.17% of their portfolio | 797.3k $1.7m | Unchanged |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.22% of their portfolio | 696.2k $1.4m | Added +143.7k |
| Prescott Group Capital Management, L.L.C. 0.26% of their portfolio | 585.1k $1.2m | Added +157.0k |
| AlphaCentric Advisors LLC 1.02% of their portfolio | 500.0k $1.0m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 498.6k $1.0m | Reduced -58.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 444.8k $920.0k | Added +4.9k |
| SILVERARC CAPITAL MANAGEMENT, LLC 0.25% of their portfolio | 354.9k $734.7k | Added +8.7k |
| NORTH RUN CAPITAL, LP 1.53% of their portfolio | 322.8k $668.1k | Added +71.6k |
| GSA CAPITAL PARTNERS LLP 0.08% of their portfolio | 315.9k $654.0k | Added +37.0k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 282.4k $584.6k | Reduced -37.2k |
| Legato Capital Management LLC 0.10% of their portfolio | 259.9k $538.0k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 248.3k $514.0k | Added +34.1k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 243.3k $503.6k | Added +167.1k |
| Verition Fund Management LLC 0.01% of their portfolio | 220.6k $456.7k | Reduced -194.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 199.3k $412.5k | Added +69.7k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 197.3k $408.3k | Added +121.9k |
| STATE STREET CORP 0.00% of their portfolio | 173.0k $358.1k | Unchanged |
| Kovack Advisors, Inc. 0.05% of their portfolio | 165.4k $342.4k | Added +97.5k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 155.4k $322.0k | Reduced -119 |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 147.5k $305.0k | Unchanged |
| Leonteq Securities AG 0.01% of their portfolio | 114.0k $234.8k | Unchanged |
| Penn Capital Management Company, LLC 0.02% of their portfolio | 111.5k $230.9k | Reduced -402.8k |
| Independent Advisor Alliance 0.01% of their portfolio | 109.6k $227.0k | Added +9.2k |
| State of Wyoming 0.07% of their portfolio | 98.4k $203.8k | Added +10.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 82.5k $170.7k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 78.4k $162.2k | Unchanged |
| Polar Capital Holdings Plc 0.00% of their portfolio | 76.7k $158.7k | Unchanged |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 52.8k $109.3k | Added +13.5k |
| WEALTH EFFECTS LLC 0.06% of their portfolio | 48.3k $99.9k | Reduced -400 |
| MARATHON CAPITAL MANAGEMENT 0.03% of their portfolio | 47.2k $104.0k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 46.3k $96.0k | Added +12.7k |
| MORGAN STANLEY 0.00% of their portfolio | 45.8k $94.9k | Reduced -32.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 44.1k $91.3k | Reduced -138 |
| Atom Investors LP 0.05% of their portfolio | 43.5k $90.0k | Reduced -5.8k |
| J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio | 41.6k $86.1k | Unchanged |
| Ergoteles LLC 0.00% of their portfolio | 39.6k $81.9k | Reduced -149.8k |
| Wellington Shields & Co., LLC 0.02% of their portfolio | 37.4k $77.4k | Added +21.9k |
| Cherry Creek Investment Advisors, Inc. 0.05% of their portfolio | 32.5k $67.3k | Unchanged |
| Virtu Financial LLC 0.01% of their portfolio | 28.4k $59.0k | New |
| EVERETT HARRIS & CO /CA/ 0.00% of their portfolio | 22.7k $47.0k | Reduced -2.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 22.7k $47.0k | Unchanged |
| Robertson Stephens Wealth Management, LLC 0.00% of their portfolio | 20.0k $41.4k | Reduced -5.0k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 18.0k $37.3k | Unchanged |
| Coury Firm Asset Management LLC 0.05% of their portfolio | 17.6k $36.4k | Unchanged |
| MARSHALL WACE, LLP 0.00% of their portfolio | 17.2k $35.5k | New |
| Summit Asset Management, LLC 0.01% of their portfolio | 16.6k $34.3k | Unchanged |
| Engineers Gate Manager LP 0.00% of their portfolio | 16.3k $33.7k | Reduced -18.1k |
| US BANCORP \DE\ 0.00% of their portfolio | 15.6k $32.4k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 12.7k $26.2k | New |
| Affinity Capital Advisors, LLC 0.01% of their portfolio | 11.9k $24.6k | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 11.7k $25.0k | Unchanged |
| Man Group plc 0.00% of their portfolio | 10.9k $22.5k | New |
| Warberg Asset Management LLC 0.01% of their portfolio | 10.0k $20.6k | Unchanged |
| BDO Wealth Advisors, LLC 0.00% of their portfolio | 10.0k $20.7k | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 9.8k $20.3k | New |
| MONEY CONCEPTS CAPITAL CORP 0.00% of their portfolio | 3.0k $6.2k | Unchanged |
| GODSEY & GIBB, INC 0.00% of their portfolio | 1.6k $3.2k | New |
| FMR LLC 0.00% of their portfolio | 929 $1.9k | Added +740 |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 726 $1.5k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 612 $1.3k | Added +8 |
| Aspire Private Capital, LLC 0.00% of their portfolio | 200 $414 | Unchanged |
| UBS Group AG 0.00% of their portfolio | 136 $282 | Reduced -81.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 119 $0 | Added +7 |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 100 $0 | Reduced -25 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 57 $118 | Reduced -1.5k |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |