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 |
|---|---|---|---|---|---|---|
| Nov 10, 2025 | August Keri | Principal Financial Officer | Grant(A) | 10K | — | $0 |
| Nov 8, 2025 | Zink Ryan M | Chief Executive Officer, Director | Option exercise(M) | 2K | — | $0 |
| Nov 8, 2025 | Zink Ryan M | Chief Executive Officer, Director | Option exercise(M) | 2K | — | $0 |
| May 22, 2025 | Maceda Jason | Director | Buy(P) | 4K | $1.58 | $6K |
| May 16, 2025 | Maceda Jason | Director | Buy(P) | 1K | $1.60 | $2K |
| May 5, 2025 | Stack Donald L | Sr. VP of Operations | Sell(S) | 11K | $2.00 | $23K |
| Dec 2, 2024 | August Keri | Sr. VP Finance and Accounting | Grant(A) | 10K | — | $0 |
| Jun 18, 2024 | Zink Ryan M | CEO, Director | Buy(P) | 632 | $2.57 | $2K |
| Jun 18, 2024 | Zink Ryan M | CEO, Director | Buy(P) | 500 | $2.58 | $1K |
| Jun 18, 2024 | Zink Ryan M | CEO, Director | Buy(P) | 500 | $2.61 | $1K |
| Jun 17, 2024 | Zink Ryan M | CEO, Director | Buy(P) | 197 | $2.50 | $493 |
| Jan 2, 2024 | August Keri | Sr. VP Finance and Accounting | Grant(A) | 10K | — | $0 |
| Nov 13, 2023 | Zink Ryan M | CEO, Director | Grant(A) | 20K | — | $0 |
| Nov 13, 2023 | Stack Donald L | Sr. VP of Operations | Grant(A) | 18K | — | $0 |
| Nov 13, 2023 | Stack Donald L | Sr. VP of Operations | Grant(A) | 12K | — | $0 |
| Apr 7, 2023 | Karnes Matthew | Sr. Vice President of Finance | Grant(A) | 25K | — | $0 |
| Mar 9, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 2K | $2.83 | $4K |
| Mar 9, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 70 | $2.82 | $197 |
| Mar 8, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.86 | $1K |
| Mar 8, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 123 | $2.85 | $351 |
| Mar 8, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.88 | $1K |
| Mar 6, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.89 | $1K |
| Mar 6, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 2 | $2.88 | $6 |
| Mar 3, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 158 | $2.87 | $453 |
| Mar 3, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.87 | $1K |
| Mar 2, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 15 | $2.87 | $43 |
| Mar 1, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 24 | $2.83 | $68 |
| Feb 28, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.88 | $1K |
| Feb 28, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 172 | $2.82 | $485 |
| Feb 27, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.85 | $1K |
| Feb 27, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.89 | $1K |
| Feb 24, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 380 | $2.83 | $1K |
| Feb 24, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 1K | $2.84 | $3K |
| Feb 24, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.85 | $1K |
| Feb 23, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.94 | $1K |
| Feb 23, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 1K | $2.90 | $3K |
| Feb 23, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 3 | $2.85 | $9 |
| Feb 23, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 100 | $2.85 | $285 |
| Feb 22, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 1K | $2.90 | $3K |
| Feb 21, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 1K | $2.85 | $3K |
| Feb 17, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 17 | $2.86 | $49 |
| Feb 16, 2023 | Stack Donald L | SVP of Operations | Buy(P) | 500 | $2.85 | $1K |
| Dec 15, 2022 | Bailey Geoffrey R | Director | Option exercise(M) | 2K | $2.31 | $5K |
| Dec 15, 2022 | Bailey Geoffrey R | Director | Option exercise(M) | 2K | — | $0 |
| Nov 8, 2022 | Karnes Matthew | Sr. Vice President of Finance | Grant(A) | 2K | — | $0 |
| Nov 8, 2022 | Zink Ryan M | CEO and Director, Director | Grant(A) | 20K | — | $0 |
| Nov 8, 2022 | Zink Ryan M | CEO and Director, Director | Grant(A) | 2K | — | $0 |
| Aug 22, 2022 | Maceda Jason | Director | Grant(A) | 7K | $3.01 | $20K |
| Aug 19, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 100 | $3.15 | $315 |
| Aug 19, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 100 | $3.15 | $315 |
| Aug 18, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 100 | $3.15 | $315 |
| Aug 17, 2022 | Maceda Jason | Director | Grant(A) | 1K | $3.01 | $3K |
| Jun 17, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 1K | $2.70 | $3K |
| Jun 16, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 240 | $2.65 | $636 |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 300 | $2.67 | $801 |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 200 | $2.65 | $530 |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 200 | $2.63 | $526 |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 100 | $2.61 | $261 |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 400 | $2.70 | $1K |
| May 9, 2022 | Zink Ryan M | CEO and Director, Director | Buy(P) | 200 | $2.69 | $538 |
| Mar 22, 2022 | Stetson Jennifer C | Director | Buy(P) | 4K | $3.76 | $17K |
| Mar 22, 2022 | Stetson Jennifer C | Director | Buy(P) | 4K | $3.85 | $17K |
| Mar 9, 2022 | Stetson Jennifer C | Director | Buy(P) | 995 | $4.24 | $4K |
| Mar 8, 2022 | Stetson Jennifer C | Director | Buy(P) | 105 | $3.95 | $415 |
| Mar 7, 2022 | Karnes Matthew | Sr. Vice President of Finance | Grant(A) | 25K | — | $0 |
| Jan 24, 2022 | Lefever Scott | Vice President of Operations | Option exercise(M) | 4K | $4.25 | $19K |
| Jan 24, 2022 | Lefever Scott | Vice President of Operations | Option exercise(M) | 7K | $3.55 | $24K |
| Jan 24, 2022 | Lefever Scott | Vice President of Operations | Option exercise(M) | 13K | $3.15 | $39K |
| Dec 1, 2021 | Bailey Geoffrey R | Director | Option exercise(M) | 5K | — | $0 |
| Dec 1, 2021 | Bailey Geoffrey R | Director | Option exercise(M) | 5K | $1.31 | $7K |
| Dec 1, 2021 | Bailey Geoffrey R | Director | Grant(A) | 2K | — | $0 |
| Dec 1, 2021 | Jobson Charles E | Director | Grant(A) | 2K | — | $0 |
| Dec 1, 2021 | Maceda Jason | Director | Grant(A) | 2K | — | $0 |
| Dec 1, 2021 | Stetson Robert J | Director | Grant(A) | 2K | — | $0 |
| Nov 16, 2021 | Bailey Geoffrey R | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Jobson Charles E | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Jobson Charles E | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Lefever Scott | Vice President of Operations | Option exercise(M) | 3K | — | $0 |
| Nov 16, 2021 | Lefever Scott | Vice President of Operations | Option exercise(M) | 3K | — | $0 |
| Nov 16, 2021 | Zink Ryan M | CEO and Director, Director | Option exercise(M) | 4K | — | $0 |
| Nov 16, 2021 | Zink Ryan M | CEO and Director, Director | Tax withholding(F) | 1K | $4.93 | $6K |
| Nov 16, 2021 | Zink Ryan M | CEO and Director, Director | Option exercise(M) | 4K | — | $0 |
| Nov 16, 2021 | Maceda Jason | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Maceda Jason | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Stetson Robert J | Director | Option exercise(M) | 914 | — | $0 |
| Nov 16, 2021 | Stetson Robert J | Director | Option exercise(M) | 914 | — | $0 |
| Sep 29, 2021 | Zink Ryan M | CEO and Director, Director | Grant(A) | 80K | — | $0 |
| Jun 28, 2021 | Bailey Geoffrey R | Director | Option exercise(M) | 2K | — | $0 |
| Jun 28, 2021 | Lefever Scott | Vice President of Operations | Option exercise(M) | 3K | — | $0 |
| Jun 28, 2021 | Bailey Geoffrey R | Director | Option exercise(M) | 914 | — | $0 |
| Jun 8, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 20K | $4.00 | $78K |
| Jun 2, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 7K | $4.16 | $31K |
| Jun 2, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 300 | $4.16 | $1K |
| May 17, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 2K | $4.14 | $10K |
| May 17, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 31K | $4.10 | $127K |
| May 17, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 100 | $4.12 | $412 |
| May 17, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 832 | $4.12 | $3K |
| May 17, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 1K | $4.13 | $4K |
| May 10, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 800 | $4.76 | $4K |
| May 10, 2021 | Lefever Scott | Vice President of Operations | Sell(S) | 23K | $4.75 | $109K |
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).