INSPIREMD INC NSPR
COM · Common Stock · CUSIP 45779A846
- SectorHealth care
- IndustrySurgical & Medical Instruments & Apparatus
- HeadquartersMiami, FL
- 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. Implied quarter-end price ≈ $0.70. Options: 1 managers hold calls ($9.5k notional), 0 hold puts (—).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 16 |
| Q4 2022 | 16 |
| Q1 2023 | 15 |
| Q2 2023 | 23 |
| Q3 2023 | 26 |
| Q4 2023 | 29 |
| Q1 2024 | 28 |
| Q2 2024 | 25 |
| Q3 2024 | 29 |
| Q4 2024 | 31 |
| Q1 2025 | 36 |
| Q2 2025 | 37 |
| Q3 2025 | 41 |
| Q4 2025 | 45 |
| Q1 2026 | 35 |
| Q2 2026 | 37 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 7 | 6 |
| Q4 2024 | 9 | 5 |
| Q1 2025 | 11 | 6 |
| Q2 2025 | 17 | 8 |
| Q3 2025 | 25 | 8 |
| Q4 2025 | 19 | 14 |
| Q1 2026 | 7 | 22 |
| Q2 2026 | 18 | 10 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $0 | $24.3k | — |
| Q4 2025 | $0 | $17.8k | — |
| Q1 2026 | $0 | $0 | — |
| Q2 2026 | $9.5k | $0 | 0.00 |
Biggest buyers
| Nantahala Capital Management, LLC | Added | +3.4m |
| Aberdeen Group plc | Added | +525.0k |
| Schonfeld Strategic Advisors LLC | New | +99.3k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +95.2k |
| Creative Planning | Added | +89.2k |
| HRT FINANCIAL LP | New | +59.8k |
| BlackRock, Inc. | Added | +42.5k |
| Cambridge Investment Research Advisors, Inc. | New | +40.3k |
| XTX Topco Ltd | Added | +36.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | +20.6k |
Biggest sellers
| Velan Capital Investment Management LP | Reduced | -2.0m |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Sold out | -114.1k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -74.7k |
| CITADEL ADVISORS LLC | Sold out | -65.8k |
| NORTHERN TRUST CORP | Sold out | -33.6k |
| Legato Capital Management LLC | Sold out | -26.9k |
| GEODE CAPITAL MANAGEMENT, LLC | Sold out | -18.2k |
| MORGAN STANLEY | Reduced | -11.5k |
| INGALLS & SNYDER LLC | Reduced | -10.5k |
| Pallas Capital Advisors LLC | Reduced | -2.0k |
Biggest calls
| CITADEL ADVISORS LLC | New | $9.5k13.6k shares |
Biggest puts
| None |
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 |
|---|---|
| Nantahala Capital Management, LLC 13G · institution no change · filed 2026-05-15 | 10.0% |
| MARSHALL WACE, LLP 13G · institution filed 2025-11-14 | 10.0% |
| Rosalind Advisors, Inc. 13G · exempt (held before listing) -0.7 pts · filed 2026-02-11 | 9.2% |
Lawless Michael A
13D · may seek influence
new · filed 2025-10-29
Stated purposeItem 3 above is hereby incorporated into this Item 4 by reference. The Reporting Person serves as an executive officer of the Issuer and, in such capacity, may be involved in reviewing transactions involving the Issuer and may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. As of the date hereof, the Reporting Person in his individual capacity does not have any present plans or proposals that relate to, or would result in, any actions or events specified in clauses (a) through (j) of Item 4 to Schedule 13D. The Reporting Person may, at any time and from time to time, (i) review or reconsider his position in the Issuer or change his purpose or formulate plans or … Full filing |
8.6% |
| Aberdeen Group plc 13G · institution +1.5 pts · filed 2026-02-02 | 7.5% |
| ORBIMED ADVISORS LLC 13G · passive investor +3.3 pts · filed 2026-02-17 | 7.4% |
| Parkman Healthcare Partners LLC 13G · institution new · filed 2025-11-14 | 5.8% |
| Nantahala Capital Partners Limited Partnership 13G · passive investor filed 2025-11-14 | 5.7% |
Slosman Marvin
13D · may seek influence
new · filed 2026-04-24
Stated purposeItem 3 above is hereby incorporated into this Item 4 by reference. The Reporting Person serves as an executive officer of the Issuer and, in such capacity, may be involved in reviewing transactions involving the Issuer and may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D. As of the date hereof, the Reporting Person in his individual capacity does not have any present plans or proposals that relate to, or would result in, any actions or events specified in clauses (a) through (j) of Item 4 to Schedule 13D. The Reporting Person may, at any time and from time to time, (i) review or reconsider his position in the Issuer or change his purpose or formulate plans or … Full filing |
5.2% |
Fell to 5% or below in the last year: Velan Capital Investment Management LP (5.0%, 2026-05-15)
Insider purchases and sales since 1 Apr 2026
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 |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 1 | $124.3k | — |
| Q2 2025 | 0 | — | 1 | $37.6k | — |
| Q3 2025 | 4 | $250.0k | 0 | — | — |
| Q4 2025 | 1 | $54.8k | 0 | — | — |
| Q1 2026 | 0 | — | 1 | $103.9k | — |
| Q2 2026 | 4 | $366.0k | 1 | $23.0k | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-05-27 | Stuka Paul Director | Bought | $17.6k20.0k shares |
| 2026-05-19 | Gleason Shane Thomas Chief Commercial Officer | Sold | $23.0k22.8k shares |
| 2026-05-14 | Stuka Paul Director | Bought | $5.8k5.0k shares |
| 2026-05-13 | Stuka Paul Director | Bought | $11.6k10.0k shares |
| 2026-05-12 | Slosman Marvin CEO and President, director | Bought | $25.2k21.0k shares |
| 2026-05-11 | Stuka Paul Director | Bought | $11.9k10.0k shares |
| 2026-05-08 | Stuka Paul Director | Bought | $76.1k65.6k shares |
| 2026-05-07 | ROUBIN GARY S Director | Bought | $106.2k90.0k shares |
| 2026-05-07 | Ward Scott R. Director | Bought | $84.2k73.3k shares |
| 2026-05-07 | Stuka Paul Director | Bought | $7.3k6.4k shares |
| 2026-05-06 | Ward Scott R. Director | Bought | $18.4k16.0k shares |
| 2026-05-06 | Stuka Paul Director | Bought | $1.7k1.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Nantahala Capital Management, LLC 0.14% of their portfolio | 6.8m $4.7m | Added +3.4m |
| Rosalind Advisors, Inc. 1.03% of their portfolio | 3.9m $2.7m | Unchanged |
| Aberdeen Group plc 0.00% of their portfolio | 3.7m $2.6m | Added +525.0k |
| ORBIMED ADVISORS LLC 0.04% of their portfolio | 3.1m $2.2m | Unchanged |
| Parkman Healthcare Partners LLC 0.17% of their portfolio | 2.4m $1.7m | Unchanged |
| MARSHALL WACE, LLP 0.00% of their portfolio | 1.9m $1.3m | Unchanged |
| Soleus Capital Management, L.P. 0.03% of their portfolio | 1.0m $732.1k | Unchanged |
| PURA VIDA INVESTMENTS, LLC 0.85% of their portfolio | 450.5k $315.4k | Unchanged |
| INGALLS & SNYDER LLC 0.01% of their portfolio | 368.8k $258.0k | Reduced -10.5k |
| Affiance Financial, LLC 0.03% of their portfolio | 250.4k $175.3k | Unchanged |
| Velan Capital Investment Management LP 0.06% of their portfolio | 148.1k $103.7k | Reduced -2.0m |
| BlackRock, Inc. 0.00% of their portfolio | 123.0k $86.1k | Added +42.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 112.8k $79.0k | Added +95.2k |
| Creative Planning 0.00% of their portfolio | 109.0k $76.3k | Added +89.2k |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 99.3k $69.5k | New |
| HRT FINANCIAL LP 0.00% of their portfolio | 59.8k $41.0k | New |
| XTX Topco Ltd 0.00% of their portfolio | 49.0k $34.3k | Added +36.7k |
| Centiva Capital, LP 0.00% of their portfolio | 44.1k $30.9k | Added +19.4k |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 40.3k $28.0k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 37.7k $26.4k | Reduced -74.7k |
| COURIER CAPITAL LLC 0.00% of their portfolio | 30.0k $21.0k | Unchanged |
| Mesirow Financial Investment Management, Inc. 0.00% of their portfolio | 30.0k $21.0k | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 28.4k $19.9k | Reduced -11.5k |
| VESTIA PERSONAL WEALTH ADVISORS 0.01% of their portfolio | 24.4k $17.1k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 20.6k $14.4k | New |
| LPL Financial LLC 0.00% of their portfolio | 18.6k $13.0k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 16.0k $11.2k | Added +5.5k |
| Avestar Capital, LLC 0.00% of their portfolio | 15.0k $10.5k | Unchanged |
| Pallas Capital Advisors LLC 0.00% of their portfolio | 11.0k $7.7k | Reduced -2.0k |
| McKinley Carter Wealth Services, Inc. 0.00% of their portfolio | 10.0k $7.0k | Unchanged |
| AdvisorNet Financial, Inc 0.00% of their portfolio | 8.8k $6.1k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 5.3k $3.7k | Added +3.2k |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 1.0k $700 | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 745 $521 | Added +142 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 247 $0 | Added +67 |
| CITIGROUP INC 0.00% of their portfolio | 1 $1 | New |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 1 $1 | New |