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 |
|---|---|---|---|---|---|---|
| Jun 25, 2023 | Embt Jeffrey Donald | Chief Accounting Officer | Grant(A) | 210K | — | $0 |
| May 26, 2023 | Bailey Christopher L | President, Powered & Energy | Sell(S) | 4K | $1.14 | $4K |
| May 26, 2023 | Soell Julian R | President, Proterra Transit | Sell(S) | 21K | $1.14 | $24K |
| May 24, 2023 | Black David S | Chief Financial Officer | Grant(A) | 333K | — | $0 |
| May 24, 2023 | Black David S | Chief Financial Officer | Grant(A) | 460K | — | $0 |
| Mar 28, 2023 | Bailey Christopher L | President, Powered & Energy | Grant(A) | 167K | — | $0 |
| Mar 28, 2023 | Bailey Christopher L | President, Powered & Energy | Grant(A) | 274K | — | $0 |
| Mar 28, 2023 | Padilla Karina F | Chief Financial Officer | Grant(A) | 134K | — | $0 |
| Mar 28, 2023 | Padilla Karina F | Chief Financial Officer | Grant(A) | 73K | — | $0 |
| Mar 28, 2023 | Joyce Gareth T | CEO and President, Director | Grant(A) | 585K | — | $0 |
| Mar 28, 2023 | Joyce Gareth T | CEO and President, Director | Grant(A) | 960K | — | $0 |
| Mar 28, 2023 | Soell Julian R | President, Proterra Transit | Grant(A) | 167K | — | $0 |
| Mar 28, 2023 | Soell Julian R | President, Proterra Transit | Grant(A) | 274K | — | $0 |
| Mar 28, 2023 | Allen John J | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Hauser Jan | Director | Grant(A) | 17K | — | $0 |
| Mar 28, 2023 | Hauser Jan | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Krakauer Mary L | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Nielsen Roger M. | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Porter Brook F | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Sargent Jeannine P | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Skidmore Constance Ellen | Director | Grant(A) | 33K | — | $0 |
| Mar 28, 2023 | Smith Michael David | Director | Grant(A) | 33K | — | $0 |
| Mar 27, 2023 | Bailey Christopher L | President, Powered & Energy | Sell(S) | 10K | $1.51 | $14K |
| Mar 27, 2023 | Padilla Karina F | Chief Financial Officer | Sell(S) | 9K | $1.51 | $14K |
| Mar 27, 2023 | Covington JoAnn | Chief Legal Officer, Secy | Sell(S) | 9K | $1.51 | $14K |
| Jan 26, 2023 | Padilla Karina F | Chief Financial Officer | Sell(S) | 9K | $4.88 | $45K |
| Jan 26, 2023 | Padilla Karina F | Chief Financial Officer | Sell(S) | 296 | $4.68 | $1K |
| Jan 23, 2023 | Joyce Gareth T | CEO and President, Director | Sell(S) | 23K | $5.01 | $113K |
| Nov 14, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Option exercise(M) | 52K | $2.18 | $114K |
| Nov 14, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Sell(S) | 52K | $7.51 | $394K |
| Nov 14, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Option exercise(M) | 52K | — | $0 |
| Sep 2, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Sell(S) | 3K | $6.09 | $21K |
| Aug 26, 2022 | Joyce Gareth T | CEO and President, Director | Sell(S) | 61 | $6.12 | $373 |
| Aug 26, 2022 | Joyce Gareth T | CEO and President, Director | Sell(S) | 3K | $6.25 | $21K |
| Aug 25, 2022 | Hauser Jan | Director | Grant(A) | 42K | — | $0 |
| May 26, 2022 | Bailey Christopher L | President, Powered & Energy | Sell(S) | 4K | $6.04 | $23K |
| May 25, 2022 | Soell Julian R | President, Proterra Transit | Grant(A) | 213K | — | $0 |
| May 25, 2022 | Soell Julian R | President, Proterra Transit | Grant(A) | 53K | — | $0 |
| Mar 14, 2022 | Joyce Gareth T | CEO and President, Director | Option exercise(M) | 21K | $4.78 | $100K |
| Mar 14, 2022 | Joyce Gareth T | CEO and President, Director | Option exercise(M) | 21K | — | $0 |
| Mar 10, 2022 | Joyce Gareth T | CEO and President, Director | Grant(A) | 121K | — | $0 |
| Mar 10, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Grant(A) | 103K | — | $0 |
| Mar 10, 2022 | Covington JoAnn | Chief Legal Officer, Secy | Grant(A) | 58K | — | $0 |
| Mar 10, 2022 | Padilla Karina F | Chief Financial Officer | Grant(A) | 154K | — | $0 |
| Mar 10, 2022 | Padilla Karina F | Chief Financial Officer | Grant(A) | 65K | — | $0 |
| Mar 10, 2022 | Bailey Christopher L | President, Powered & Energy | Grant(A) | 299K | — | $0 |
| Mar 9, 2022 | Roger Nielsen M | Director | Grant(A) | 30K | — | $0 |
| Mar 8, 2022 | Smith Michael David | Director | Disposed to issuer(D) | 9K | $7.39 | $65K |
| Feb 17, 2022 | Porter Brook F | Director | Grant(A) | 22K | — | $0 |
| Feb 17, 2022 | Skidmore Constance Ellen | Director | Grant(A) | 13K | — | $0 |
| Feb 17, 2022 | Joyce Gareth T | CEO and President, Director | Grant(A) | 189K | — | $0 |
| Feb 17, 2022 | Joyce Gareth T | CEO and President, Director | Grant(A) | 300K | — | $0 |
| Feb 17, 2022 | Allen John J | Director | Grant(A) | 13K | — | $0 |
| Feb 17, 2022 | Robinson-Berry Joan | Director | Grant(A) | 13K | — | $0 |
| Feb 17, 2022 | Sargent Jeannine P | Director | Grant(A) | 13K | — | $0 |
| Feb 17, 2022 | Padilla Karina F | Chief Financial Officer | Grant(A) | 74K | — | $0 |
| Feb 17, 2022 | Krakauer Mary L | Director | Grant(A) | 32K | — | $0 |
| Feb 17, 2022 | Smith Michael David | Director | Grant(A) | 13K | — | $0 |
| Dec 13, 2021 | Joyce Gareth T | President of Proterra Oper Co. | Option exercise(M) | 21K | $4.78 | $100K |
| Dec 13, 2021 | Joyce Gareth T | President of Proterra Oper Co. | Option exercise(M) | 21K | — | $0 |
| Nov 29, 2021 | Bailey Christopher L | President, Powered & Energy | Grant(A) | 89K | — | $0 |
| Nov 29, 2021 | Robinson-Berry Joan | Director | Grant(A) | 37K | — | — |
| Nov 29, 2021 | Robinson-Berry Joan | Director | Disposed to issuer(D) | 37K | — | — |
| Nov 29, 2021 | Porter Brook F | Director | Grant(A) | 9K | — | $0 |
| Nov 29, 2021 | Skidmore Constance Ellen | Director | Grant(A) | 9K | — | $0 |
| Nov 29, 2021 | Erhard John Frederick | Director | Grant(A) | 5K | — | $0 |
| Nov 29, 2021 | Robinson-Berry Joan | Director | Grant(A) | 7K | — | $0 |
| Nov 29, 2021 | Sargent Jeannine P | Director | Grant(A) | 9K | — | $0 |
| Nov 29, 2021 | Smith Michael David | Director | Grant(A) | 9K | — | $0 |
| Nov 29, 2021 | Popple Ryan | Director | Grant(A) | 7K | — | $0 |
| Oct 21, 2021 | Joyce Gareth T | President of Proterra Oper Co. | Grant(A) | 29K | — | $0 |
| Oct 21, 2021 | Joyce Gareth T | President of Proterra Oper Co. | Grant(A) | 52K | — | $0 |
| Sep 2, 2021 | Ensign Joshua P | Chief Operating Officer | Grant(A) | 66K | — | $0 |
| Sep 2, 2021 | Ensign Joshua P | Chief Operating Officer | Grant(A) | 36K | — | $0 |
| Sep 2, 2021 | Covington JoAnn | Chief Legal Officer, Secy | Grant(A) | 50K | — | $0 |
| Sep 2, 2021 | Covington JoAnn | Chief Legal Officer, Secy | Grant(A) | 28K | — | $0 |
| Sep 2, 2021 | Ard Amy E | Chief Financial Officer | Grant(A) | 66K | — | $0 |
| Sep 2, 2021 | Ard Amy E | Chief Financial Officer | Grant(A) | 36K | — | $0 |
| Aug 23, 2021 | Goetz Jochen M | Director | Grant(A) | 210K | $8.93 | $1.9M |
| Aug 20, 2021 | Popple Ryan | Director | Disposed to issuer(D) | 93K | $9.11 | $852K |
| Aug 18, 2021 | Covington JoAnn | Chief Legal Officer, Secy | Disposed to issuer(D) | 8K | $9.46 | $78K |
| Aug 16, 2021 | Popple Ryan | Director | Tax withholding(F) | 0 | — | $0 |
| Aug 16, 2021 | Ensign Joshua P | Chief Operating Officer | Tax withholding(F) | 12K | $9.86 | $118K |
| Aug 16, 2021 | Covington JoAnn | Chief Legal Officer, Secy | Tax withholding(F) | 6K | $9.86 | $57K |
| Aug 16, 2021 | Allen John J | Chief Executive Officer, Director | Tax withholding(F) | 9K | $9.86 | $86K |
| Aug 16, 2021 | Ard Amy E | Chief Financial Officer | Tax withholding(F) | 9K | $9.86 | $89K |
| Jul 20, 2021 | Porter Brook F | Director | Grant(A) | 39K | $8.93 | $346K |
| Jul 20, 2021 | Allen John J | Chief Executive Officer, Director | Grant(A) | 30K | $8.93 | $268K |
| Jul 20, 2021 | Ard Amy E | Chief Financial Officer | Grant(A) | 22K | $8.93 | $196K |
| Jul 20, 2021 | Covington JoAnn | Chief Legal Officer, Secy | Grant(A) | 14K | $8.93 | $125K |
| Jul 20, 2021 | Ensign Joshua P | Chief Operating Officer | Grant(A) | 30K | $8.93 | $265K |
| Jul 20, 2021 | Popple Ryan | Director | Grant(A) | 93K | $8.93 | $835K |
| Jul 20, 2021 | Robinson-Berry Joan | Director | Grant(A) | 19 | $8.93 | $170 |
| Jul 20, 2021 | Sargent Jeannine P | Director | Grant(A) | 3K | $8.93 | $26K |
| Jul 20, 2021 | Skidmore Constance Ellen | Director | Grant(A) | 3K | $8.93 | $23K |
| Jul 20, 2021 | Smith Michael David | Director | Grant(A) | 3K | $8.93 | $28K |
| Jun 28, 2021 | Popple Ryan | Director | Option exercise(M) | 60K | — | $0 |
| Jun 28, 2021 | Popple Ryan | Director | Option exercise(M) | 60K | $1.33 | $80K |
| Jun 14, 2021 | Berkenfeld Steven | Director | Conversion(C) | 35K | — | — |
| Jun 14, 2021 | Berkenfeld Steven | Director | Conversion(C) | 35K | — | — |
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).