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 |
|---|---|---|---|---|---|---|
| Apr 21, 2025 | Kern Bren | Chief Operating Officer | Grant(A) | 50K | — | $0 |
| Apr 21, 2025 | Geltzeiler Michael S | Director | Grant(A) | 5K | — | $0 |
| Apr 21, 2025 | Ianchulev Tsontcho | Director | Grant(A) | 5K | — | $0 |
| Apr 21, 2025 | Jacobson Rachel | Director | Grant(A) | 3K | — | $0 |
| Apr 21, 2025 | Mather Charles E IV | Director | Grant(A) | 8K | — | $0 |
| Apr 21, 2025 | Palanki Ram | Director | Grant(A) | 3K | — | $0 |
| Apr 21, 2025 | Strahlman Ellen R | Director | Grant(A) | 3K | — | $0 |
| Feb 21, 2025 | Avenue Venture Opportunities Fund II, L.P. | 10% Owner | Other(J) | 6.0M | — | — |
| Aug 30, 2024 | Jones Andrew D. | Chief Financial Officer | Grant(A) | 200K | — | $0 |
| Aug 28, 2024 | Rowe Michael M | Chief Executive Officer, Director | Buy(P) | 27K | $0.52 | $14K |
| Aug 26, 2024 | Rowe Michael M | Chief Executive Officer, Director | Buy(P) | 50K | $0.57 | $29K |
| Jul 2, 2024 | Grant Stuart M. | 10% Owner | Buy(P) | 1.5M | $0.66 | $1000K |
| Jul 2, 2024 | Grant Stuart M. | 10% Owner | Other(J) | 3.3M | — | — |
| Jun 12, 2024 | Geltzeiler Michael S | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Geltzeiler Michael S | Director | Grant(A) | 85K | — | $0 |
| Jun 12, 2024 | Ianchulev Tsontcho | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Ianchulev Tsontcho | Director | Grant(A) | 85K | — | $0 |
| Jun 12, 2024 | Jacobson Rachel | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Jacobson Rachel | Director | Grant(A) | 85K | — | $0 |
| Jun 12, 2024 | Mather Charles E IV | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Mather Charles E IV | Director | Grant(A) | 85K | — | $0 |
| Jun 12, 2024 | Palanki Ram | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Palanki Ram | Director | Grant(A) | 85K | — | $0 |
| Jun 12, 2024 | Strahlman Ellen R | Director | Grant(A) | 61K | — | $0 |
| Jun 12, 2024 | Strahlman Ellen R | Director | Grant(A) | 85K | — | $0 |
| Mar 28, 2024 | Grant Stuart M. | 10% Owner | Buy(P) | 100K | $0.98 | $98K |
| Mar 19, 2024 | Grant Stuart M. | 10% Owner | Buy(P) | 50K | $1.23 | $62K |
| Mar 8, 2024 | Grant Stuart M. | 10% Owner | Buy(P) | 11K | $1.58 | $17K |
| Feb 12, 2024 | Kern Bren | Chief Operating Officer | Grant(A) | 50K | — | $0 |
| Feb 12, 2024 | Rowe Michael M | Chief Executive Officer, Director | Grant(A) | 75K | — | $0 |
| Feb 12, 2024 | Gandolfo John P | Chief Financial Officer | Grant(A) | 60K | — | $0 |
| Dec 4, 2023 | Rowe Michael M | Chief Executive Officer, Director | Buy(P) | 5K | $1.36 | $7K |
| Nov 14, 2023 | Geltzeiler Michael S | Director | Grant(A) | 20K | — | $0 |
| Nov 14, 2023 | Geltzeiler Michael S | Director | Grant(A) | 29K | — | $0 |
| Sep 29, 2023 | Strahlman Ellen R | Director | Buy(P) | 5K | $1.68 | $8K |
| Sep 19, 2023 | Rowe Michael M | Chief Executive Officer, Director | Buy(P) | 1K | $1.66 | $2K |
| Sep 15, 2023 | Rowe Michael M | Chief Executive Officer, Director | Buy(P) | 1K | $1.75 | $2K |
| Aug 17, 2023 | Grant Stuart M. | 10% Owner | Buy(P) | 30K | $1.87 | $56K |
| Aug 16, 2023 | Grant Stuart M. | 10% Owner | Buy(P) | 45K | $1.91 | $86K |
| Jun 27, 2023 | Ianchulev Tsontcho | Director | Grant(A) | 17K | — | $0 |
| Jun 27, 2023 | Ianchulev Tsontcho | Director | Grant(A) | 25K | — | $0 |
| Jun 27, 2023 | Jacobson Rachel | Director | Grant(A) | 17K | — | $0 |
| Jun 27, 2023 | Jacobson Rachel | Director | Grant(A) | 25K | — | $0 |
| Jun 27, 2023 | Mather Charles E IV | Director | Grant(A) | 17K | — | $0 |
| Jun 27, 2023 | Mather Charles E IV | Director | Grant(A) | 25K | — | $0 |
| Jun 27, 2023 | Palanki Ram | Director | Grant(A) | 17K | — | $0 |
| Jun 27, 2023 | Palanki Ram | Director | Grant(A) | 25K | — | $0 |
| Jun 27, 2023 | Strahlman Ellen R | Director | Grant(A) | 17K | — | $0 |
| Jun 27, 2023 | Strahlman Ellen R | Director | Grant(A) | 25K | — | $0 |
| May 31, 2023 | Gandolfo John P | Chief Financial Officer | Buy(P) | 2K | $2.79 | $6K |
| May 26, 2023 | Mather Charles E IV | Director | Buy(P) | 3K | $2.49 | $7K |
| May 26, 2023 | Kern Bren | Chief Operating Officer | Buy(P) | 3K | $2.73 | $7K |
| May 25, 2023 | Grant Stuart M. | 10% Owner | Buy(P) | 88K | $2.65 | $234K |
| May 23, 2023 | Strahlman Ellen R | Director | Buy(P) | 10K | $3.10 | $31K |
| May 15, 2023 | Mather Charles E IV | Director | Buy(P) | 4K | $3.39 | $14K |
| May 1, 2023 | Rowe Michael M | Chief Executive Officer, Director | Option exercise(M) | 10K | $2.72 | $27K |
| May 1, 2023 | Rowe Michael M | Chief Executive Officer, Director | Option exercise(M) | 10K | — | $0 |
| May 1, 2023 | Ianchulev Tsontcho | Director | Sell(S) | 90K | $5.50 | $495K |
| Apr 27, 2023 | Ianchulev Tsontcho | Director | Sell(S) | 60K | $5.00 | $300K |
| Apr 14, 2023 | Ianchulev Tsontcho | Director | Sell(S) | 40K | $4.50 | $180K |
| Apr 11, 2023 | Ianchulev Tsontcho | Director | Sell(S) | 40K | $4.00 | $160K |
| Mar 31, 2023 | Ianchulev Tsontcho | Director | Sell(S) | 40K | $3.50 | $140K |
| Jan 17, 2023 | Gandolfo John P | CHIEF FINANCIAL OFFICER | Grant(A) | 68K | — | $0 |
| Jan 3, 2023 | Kern Bren | CHIEF OPERATING OFFICER | Grant(A) | 120K | — | $0 |
| Dec 30, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 22K | $1.50 | $33K |
| Dec 30, 2022 | Rowe Michael M | CHIEF EXECUTIVE OFFICER, Director | Buy(P) | 10K | $1.54 | $15K |
| Aug 31, 2022 | Strahlman Ellen R | Director | Buy(P) | 7K | $1.62 | $11K |
| Aug 30, 2022 | Strahlman Ellen R | Director | Buy(P) | 7K | $1.60 | $11K |
| Aug 29, 2022 | Strahlman Ellen R | Director | Buy(P) | 8K | $1.62 | $13K |
| Aug 24, 2022 | Strahlman Ellen R | Director | Buy(P) | 2K | $1.59 | $2K |
| Aug 18, 2022 | Ianchulev Tsontcho | Director | Grant(A) | 21K | — | $0 |
| Aug 18, 2022 | Ianchulev Tsontcho | Director | Grant(A) | 30K | — | $0 |
| Aug 1, 2022 | Rowe Michael M | CHIEF EXECUTIVE OFFICER, Director | Grant(A) | 440K | — | $0 |
| Jul 1, 2022 | Strahlman Ellen R | Director | Grant(A) | 20K | — | $0 |
| Jul 1, 2022 | Strahlman Ellen R | Director | Grant(A) | 28K | — | $0 |
| Jul 1, 2022 | Palanki Ram | Director | Grant(A) | 20K | — | $0 |
| Jul 1, 2022 | Palanki Ram | Director | Grant(A) | 28K | — | $0 |
| Jun 21, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 100K | $1.65 | $165K |
| Jun 16, 2022 | Lee Kenneth B JR | Director | Grant(A) | 22K | — | $0 |
| Jun 16, 2022 | Lee Kenneth B JR | Director | Grant(A) | 31K | — | $0 |
| Jun 16, 2022 | Jacobson Rachel | Director | Grant(A) | 22K | — | $0 |
| Jun 16, 2022 | Jacobson Rachel | Director | Grant(A) | 31K | — | $0 |
| Jun 16, 2022 | Mather Charles E IV | Director | Grant(A) | 22K | — | $0 |
| Jun 16, 2022 | Mather Charles E IV | Director | Grant(A) | 31K | — | $0 |
| Jun 16, 2022 | Haller Julia A | Director | Grant(A) | 22K | — | $0 |
| Jun 16, 2022 | Haller Julia A | Director | Grant(A) | 31K | — | $0 |
| Jun 16, 2022 | Benjamin Stephen Keith | Director | Grant(A) | 22K | — | $0 |
| Jun 16, 2022 | Benjamin Stephen Keith | Director | Grant(A) | 31K | — | $0 |
| May 19, 2022 | Lee Kenneth B JR | Director | Buy(P) | 10K | $2.20 | $22K |
| May 18, 2022 | Mather Charles E IV | Director | Buy(P) | 7K | $2.03 | $14K |
| May 11, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 25K | $1.95 | $49K |
| May 10, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 50K | $1.98 | $99K |
| May 5, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 26K | $2.26 | $59K |
| May 4, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 24K | $2.26 | $54K |
| Apr 22, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 20K | $2.55 | $51K |
| Apr 21, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 39K | $2.59 | $100K |
| Apr 11, 2022 | Jacobson Rachel | Director | Grant(A) | 5K | — | $0 |
| Apr 11, 2022 | Benjamin Stephen Keith | Director | Grant(A) | 5K | — | $0 |
| Mar 31, 2022 | Mather Charles E IV | Director | Buy(P) | 4K | $3.12 | $12K |
| Feb 22, 2022 | Grant Stuart M. | 10% Owner | Buy(P) | 42K | $2.75 | $116K |
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 2021-03-29 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).