The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 26, 2026 | Essex Woodlands IX, LLC | 10% Owner | Sell(S) | 1.6M | — | — |
| Mar 26, 2026 | Essex Woodlands IX, LLC | 10% Owner | Sell(S) | 0 | — | — |
| Mar 26, 2026 | Essex Woodlands IX, LLC | 10% Owner | Sell(S) | 1.5M | — | — |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 37.5M | $0.04 | $1.5M |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 37K | — | — |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 1.6M | — | — |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 0 | — | — |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 335K | — | — |
| Mar 26, 2026 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 1.5M | — | — |
| Sep 30, 2025 | Madryn Asset Management, LP | 10% Owner | Buy(P) | 0 | — | — |
| Sep 30, 2025 | Madryn Asset Management, LP | 10% Owner | Disposed to issuer(D) | 545K | — | — |
| Jun 30, 2025 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 0 | — | — |
| Jun 30, 2025 | Madryn Health Advisors, LP | 10% Owner | Disposed to issuer(D) | 0 | — | — |
| Jun 30, 2025 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 326K | — | — |
| Mar 31, 2025 | Madryn Health Partners (Cayman Master), LP | 10% Owner | Buy(P) | 0 | — | — |
| Mar 31, 2025 | Madryn Health Partners (Cayman Master), LP | 10% Owner | Disposed to issuer(D) | 0 | — | — |
| Mar 31, 2025 | Madryn Health Partners (Cayman Master), LP | 10% Owner | Buy(P) | 379K | — | — |
| Dec 3, 2024 | Natale Anthony | Director | Sell(S) | 43K | $0.31 | $13K |
| Oct 3, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 51K | $0.53 | $27K |
| Oct 3, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 4K | $0.53 | $2K |
| Oct 3, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 40K | $0.53 | $21K |
| Oct 3, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 60K | $0.53 | $32K |
| Oct 3, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 8K | $0.53 | $4K |
| Oct 2, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 4K | $0.53 | $2K |
| Oct 2, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 35K | $0.53 | $19K |
| Oct 2, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 30K | $0.53 | $16K |
| Oct 2, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 23K | $0.53 | $12K |
| Oct 2, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 2K | $0.53 | $1K |
| Oct 1, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 44K | $0.60 | $26K |
| Oct 1, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 35K | $0.60 | $21K |
| Oct 1, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 3K | $0.60 | $2K |
| Oct 1, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 7K | $0.60 | $4K |
| Oct 1, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 52K | $0.60 | $31K |
| Sep 30, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 22K | $0.64 | $14K |
| Sep 30, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 18K | $0.64 | $11K |
| Sep 30, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 2K | $0.64 | $1K |
| Sep 30, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 3K | $0.64 | $2K |
| Sep 30, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 26K | $0.64 | $17K |
| Sep 26, 2024 | Madryn Health Partners, LP | 10% Owner | Buy(P) | 204K | — | — |
| Jun 11, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 233K | — | $0 |
| Jun 11, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 103K | $1.20 | $123K |
| Jun 11, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 350K | — | — |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 263K | — | $0 |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 331K | — | $0 |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 24K | — | $0 |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 49K | — | $0 |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 36K | — | — |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 394K | — | — |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 496K | — | — |
| Jun 10, 2024 | Masters Michael Willingham | 10% Owner | Conversion(C) | 74K | — | — |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 54K | $1.22 | $66K |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 20K | $1.20 | $24K |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 1K | $1.20 | $2K |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 11K | $1.20 | $14K |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 128K | $1.20 | $154K |
| Jun 7, 2024 | Masters Michael Willingham | 10% Owner | Sell(S) | 172K | $1.20 | $207K |
| May 24, 2024 | Madryn Asset Management, LP | 10% Owner | Buy(P) | 577K | — | — |
| Jan 18, 2024 | EW Healthcare Partners, L.P. | 10% Owner | Buy(P) | 0 | — | — |
| Oct 20, 2023 | EW Healthcare Partners-A, L.P. | 10% Owner | Buy(P) | 503K | $3.98 | $2.0M |
| Oct 4, 2023 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 249K | — | — |
| Oct 4, 2023 | Madryn Health Advisors, LP | 10% Owner | Disposed to issuer(D) | 0 | — | — |
| Oct 4, 2023 | Madryn Health Advisors, LP | 10% Owner | Buy(P) | 0 | — | — |
| Sep 8, 2023 | Essex Woodlands IX, LLC | 10% Owner | Buy(P) | 292K | $3.42 | $1.0M |
| Aug 11, 2023 | Mandarello Michael | General Counsel & Secretary | Grant(A) | 834 | — | — |
| Aug 11, 2023 | Mandarello Michael | General Counsel & Secretary | Tax withholding(F) | 233 | — | — |
| Jul 12, 2023 | Essex Woodlands Fund IX-GP, L.P. | 10% Owner | Buy(P) | 500K | — | $0 |
| May 15, 2023 | Essex Woodlands IX, LLC | 10% Owner | Buy(P) | 281K | $7.12 | $2.0M |
| Mar 25, 2023 | Portaro Ross | Exec VP & General Manager | Tax withholding(F) | 11K | — | — |
| Mar 25, 2023 | Portaro Ross | Exec VP & General Manager | Grant(A) | 25K | — | — |
| Mar 25, 2023 | McGrail William H | Sr. VP | Tax withholding(F) | 5K | — | — |
| Mar 25, 2023 | McGrail William H | Sr. VP | Grant(A) | 13K | — | — |
| Mar 25, 2023 | Georgiadis Anna | Chief HR Officer | Grant(A) | 19K | — | — |
| Mar 25, 2023 | Georgiadis Anna | Chief HR Officer | Tax withholding(F) | 6K | — | — |
| Mar 25, 2023 | Della Penna Domenic | Exec VP & General Manager | Tax withholding(F) | 13K | — | — |
| Mar 25, 2023 | Della Penna Domenic | Exec VP & General Manager | Grant(A) | 38K | — | — |
| Mar 25, 2023 | Mandarello Michael | General Counsel & Secretary | Tax withholding(F) | 5K | — | — |
| Mar 25, 2023 | Mandarello Michael | General Counsel & Secretary | Grant(A) | 19K | — | — |
| Mar 24, 2023 | Portaro Ross | Exec VP & General Manager | Grant(A) | 200K | — | $0 |
| Mar 24, 2023 | McGrail William H | Sr. VP | Grant(A) | 150K | — | $0 |
| Mar 24, 2023 | Georgiadis Anna | Chief HR Officer | Grant(A) | 200K | — | $0 |
| Mar 24, 2023 | Hollmig Stanley Tyler | Director | Grant(A) | 75K | — | $0 |
| Mar 24, 2023 | Kong Garheng | Director | Grant(A) | 75K | — | $0 |
| Mar 24, 2023 | Barry Richard Scott | Director | Grant(A) | 75K | — | $0 |
| Mar 24, 2023 | Della Penna Domenic | Exec VP & General Manager | Grant(A) | 250K | — | $0 |
| Mar 24, 2023 | Mandarello Michael | General Counsel & Secretary | Grant(A) | 200K | — | $0 |
| Mar 24, 2023 | Sullivan Keith J | Director | Buy(P) | 75K | — | $0 |
| Mar 24, 2023 | Natale Anthony | Director | Grant(A) | 75K | — | $0 |
| Mar 24, 2023 | LaPorte Fritz L | Director | Grant(A) | 75K | — | $0 |
| Mar 24, 2023 | Lacchin Louise | Director | Grant(A) | 75K | — | $0 |
| Nov 29, 2022 | Natale Anthony | Director | Sell(S) | 51K | $0.24 | $12K |
| Nov 28, 2022 | Natale Anthony | Director | Sell(S) | 51K | $0.27 | $14K |
| Nov 25, 2022 | Natale Anthony | Director | Sell(S) | 51K | $0.31 | $16K |
| Nov 23, 2022 | Natale Anthony | Director | Sell(S) | 51K | $0.33 | $17K |
| Nov 22, 2022 | Natale Anthony | Director | Sell(S) | 51K | $0.20 | $10K |
| Nov 21, 2022 | Portaro Ross | President Global Sales | Buy(P) | 60K | $0.22 | $13K |
| Nov 18, 2022 | Essex Woodlands Fund IX-GP, L.P. | 10% Owner | Buy(P) | 58K | $2.00 | $116K |
| Nov 18, 2022 | Essex Woodlands Fund IX-GP, L.P. | 10% Owner | Buy(P) | 1.4M | $2.00 | $2.9M |
| Nov 18, 2022 | HealthQuest Venture Management II, L.L.C. | 10% Owner | Buy(P) | 335K | $2.00 | $670K |
| Nov 18, 2022 | De Silva Rajiv | Officer | Buy(P) | 1.3M | $0.20 | $250K |
| Nov 18, 2022 | Varghese Hemanth Jacob | President/Chief Bus. Officer | Buy(P) | 250K | $0.20 | $50K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2020-03-30 → 2026-07-31. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).