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 9, 2024 | Gu Ehong | Interim CFO | Disposed to issuer(D) | 18K | $0.32 | $6K |
| Feb 15, 2024 | Stone Adam Leo | Interim CEO, Director | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Stone Adam Leo | Interim CEO, Director | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Stone Adam Leo | Interim CEO, Director | Option exercise(M) | 36K | — | $0 |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Option exercise(M) | 36K | — | $0 |
| Feb 15, 2024 | Perceptive Life Sciences Master Fund Ltd | Director, 10% Owner | Option exercise(M) | 36K | — | $0 |
| Feb 15, 2024 | Poukalov Konstantin | Director | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Poukalov Konstantin | Director | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Poukalov Konstantin | Director | Option exercise(M) | 36K | — | $0 |
| Feb 15, 2024 | Silbermann Susan Michele | Director | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Silbermann Susan Michele | Director | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Silbermann Susan Michele | Director | Option exercise(M) | 36K | — | $0 |
| Feb 15, 2024 | Gianakakos Anastasios | Director | Tax withholding(F) | 19K | $4.76 | $91K |
| Feb 15, 2024 | Gianakakos Anastasios | Director | Option exercise(M) | 36K | $2.52 | $91K |
| Feb 15, 2024 | Gianakakos Anastasios | Director | Option exercise(M) | 36K | — | $0 |
| Jan 2, 2024 | Gu Ehong | Interim CFO | Sell(S) | 2K | $4.34 | $8K |
| Jun 21, 2023 | Perceptive Advisors LLC | Director, 10% Owner | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Perceptive Advisors LLC | Director, 10% Owner | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Poukalov Konstantin | Director | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Stone Adam Leo | Director | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Silbermann Susan Michele | Director | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Gianakakos Anastasios | Director | Grant(A) | 36K | — | $0 |
| Jun 21, 2023 | Chen Wei Wei | Director | Grant(A) | 36K | — | $0 |
| Mar 29, 2023 | Larson Yi | Chief Financial Officer | Grant(A) | 326K | — | $0 |
| Mar 29, 2023 | Wang Yizhe | Chief Executive Officer, Director | Grant(A) | 907K | — | $0 |
| Mar 29, 2023 | Qian Jiang | SVP, China General Manager | Grant(A) | 224K | — | $0 |
| Mar 29, 2023 | Jahn Brianne | Chief Business Officer | Grant(A) | 224K | — | $0 |
| Jan 20, 2023 | Wang Yizhe | Chief Executive Officer, Director | Grant(A) | 1.3M | — | $0 |
| Jan 20, 2023 | Qian Jiang | SVP, China General Manager | Grant(A) | 319K | — | $0 |
| Jan 20, 2023 | Jahn Brianne | Chief Business Officer | Grant(A) | 319K | — | $0 |
| Jan 20, 2023 | Larson Yi | Chief Financial Officer | Grant(A) | 464K | — | $0 |
| Jan 3, 2023 | Qian Jiang | SVP, China General Manager | Sell(S) | 2K | $1.65 | $4K |
| Aug 18, 2022 | LEV LB Holdings GP, LLC | Director, 10% Owner | Buy(P) | 998K | $2.40 | $2.4M |
| Jun 23, 2022 | Stone Adam Leo | Director | Grant(A) | 36K | — | $0 |
| Jun 23, 2022 | Poukalov Konstantin | Director | Grant(A) | 36K | — | $0 |
| Jun 23, 2022 | Perceptive Advisors LLC | Director, 10% Owner | Grant(A) | 36K | — | $0 |
| Jun 23, 2022 | Perceptive Advisors LLC | Director, 10% Owner | Grant(A) | 36K | — | $0 |
| Jun 23, 2022 | Silbermann Susan Michele | Director | Grant(A) | 36K | — | $0 |
| Jun 23, 2022 | Gianakakos Anastasios | Director | Grant(A) | 36K | — | $0 |
| May 26, 2022 | LEV LB Holdings, LP | Director, 10% Owner | Buy(P) | 69K | $3.13 | $216K |
| May 25, 2022 | Perceptive Venture Advisors, LLC | Director, 10% Owner | Buy(P) | 120K | $2.63 | $316K |
| May 24, 2022 | Perceptive Venture Advisors, LLC | Director, 10% Owner | Buy(P) | 43K | $2.47 | $105K |
| May 23, 2022 | Perceptive Venture Advisors, LLC | Director, 10% Owner | Buy(P) | 9K | $2.49 | $22K |
| May 4, 2022 | Yu Debra | See Remarks | Option exercise(M) | 1.0M | $1.71 | $1.7M |
| May 4, 2022 | Yu Debra | See Remarks | Option exercise(M) | 1.0M | — | $0 |
| Apr 6, 2022 | Chen Wei Wei | Director | Grant(A) | 73K | — | $0 |
| Dec 31, 2021 | Qian Jiang | China General Manager | Grant(A) | 70K | — | $0 |
| Dec 29, 2021 | Gianakakos Anastasios | Director | Option exercise(M) | 37K | $6.49 | $237K |
| Dec 29, 2021 | Gianakakos Anastasios | Director | Option exercise(M) | 37K | — | $0 |
| Dec 1, 2021 | Larson Yi | Chief Financial Officer | Grant(A) | 6K | — | $0 |
| Nov 3, 2021 | LEV LB Holdings, LP | Director, 10% Owner | Buy(P) | 20K | $13.51 | $270K |
| Nov 3, 2021 | LEV LB Holdings, LP | Director, 10% Owner | Buy(P) | 2.3M | $16.00 | $36.0M |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 635K | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 2.5M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 2.5M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 500K | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 424K | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 2.5M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 3.7M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 14.6M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 14.6M | — | — |
| Nov 3, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Conversion(C) | 2.9M | — | — |
| Nov 2, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Buy(P) | 100K | $13.50 | $1.4M |
| Nov 1, 2021 | Perceptive Venture Advisors, LLC | 10% Owner | Buy(P) | 120K | $15.50 | $1.9M |
| Oct 31, 2021 | Qian Jiang | China General Manager | Grant(A) | 409K | — | $0 |
| Oct 31, 2021 | Silbermann Susan Michele | Director | Grant(A) | 73K | — | $0 |
| Oct 31, 2021 | Jahn Brianne | Chief Business Officer | Grant(A) | 331K | — | $0 |
| Oct 31, 2021 | Wu Jesse | Director | Grant(A) | 73K | — | $0 |
| Oct 31, 2021 | Larson Yi | Chief Financial Officer | Grant(A) | 230K | — | $0 |
| Oct 31, 2021 | Yu Debra | See Remarks | Grant(A) | 747K | — | $0 |
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).