ERAS's three largest insider shareholders as of March 23, 2026 are Jonathan E Lim (Chairman Ceo, 12.90Mn shares), Bihua Chen (Director, 10.81Mn shares), Venture Partners X, Llc Arch (TenPercentOwner, 5.53Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jonathan E Lim | Chairman Ceo | 0 | 12,899,360 | 06 Dec, 2023 |
| Bihua Chen | 0 | 10,813,246 | 22 Jul, 2021 | |
| Venture Partners X, Llc Arch | 0 | 5,527,777 | 20 Jul, 2021 | |
| Lin Wei | Chief Medical Officer | 315,812 | 0 | 02 Feb, 2023 |
| David M. Chacko | Cfo And Cbo | 279,980 | 0 | 30 Jan, 2026 |
| Pratik S Multani | 166,666 | 6,200 | 03 Jun, 2025 | |
| Ebun Garner | General Counsel Corp. Sec. | 25,076 | 0 | 08 Jan, 2026 |
| Valerie Denise Harding Start | 0 | 20,000 | 07 Dec, 2023 | |
| James Arthur Bristol | 0 | 20,000 | 22 Dec, 2022 | |
| Julie Hambleton | 6,000 | 0 | 20 Jul, 2021 | |
| Valerie Denise Harding Start | 2,000 | 0 | 20 Jul, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 04 Mar, 2026 | Shannon Morris | Common Stock | A | 20,000 | $1.70 | 20,000 | D | M |
| 04 Mar, 2026 | Shannon Morris | Common Stock | D | 20,000 | $15.04 | 0 | D | S |
| 04 Mar, 2025 | Shannon Morris | Stock Option (right to buy) | D | 20,000 | $0.00 | 515,800 | D | M |
| 29 Jan, 2026 | Michael David Varney | Stock option (right to buy) | A | 96,000 | $0.00 | 96,000 | D | A |
| 15 Dec, 2025 | David M. Chacko | Common Stock | A | 17,793 | $1.19 | 279,980 | D | J |
| 29 Jan, 2026 | Shannon Morris | Stock option (right to buy) | A | 625,000 | $0.00 | 625,000 | D | A |
| 29 Jan, 2026 | Ebun Garner | Stock option (right to buy) | A | 560,000 | $0.00 | 560,000 | D | A |
| 29 Jan, 2026 | Jonathan E Lim | Stock option (right to buy) | A | 2,000,000 | $0.00 | 2,000,000 | D | A |
| 29 Jan, 2026 | David M. Chacko | Stock option (right to buy) | A | 640,000 | $0.00 | 640,000 | D | A |
| 15 Dec, 2025 | Ebun Garner | Common Stock | A | 3,902 | $1.19 | 25,076 | D | A |
| 07 Jan, 2026 | Ebun Garner | Common Stock | A | 120,000 | $1.70 | 145,076 | D | M |
| 07 Jan, 2026 | Ebun Garner | Common Stock | D | 120,000 | $5.59 | 25,076 | D | S |
| 07 Jan, 2025 | Ebun Garner | Stock Option (right to buy) | D | 120,000 | $0.00 | 360,000 | D | M |
| 01 Jan, 2026 | Jean I Liu | Stock Option (right to buy) | A | 20,617 | $0.00 | 20,617 | D | A |
| 01 Jan, 2026 | Valerie Denise Harding Start | Stock Option (right to buy) | A | 24,306 | $0.00 | 24,306 | D | A |
| 01 Jan, 2026 | Pratik S Multani | Stock Option (right to buy) | A | 19,532 | $0.00 | 19,532 | D | A |
| 01 Jan, 2026 | James Arthur Bristol | Stock Option (right to buy) | A | 37,762 | $0.00 | 37,762 | D | A |
| 24 Jun, 2025 | Michael David Varney | Stock option (right to buy) | A | 120,000 | $0.00 | 120,000 | D | A |
| 24 Jun, 2025 | Valerie Denise Harding Start | Stock option (right to buy) | A | 120,000 | $0.00 | 120,000 | D | A |
| 24 Jun, 2025 | Jean I Liu | Stock option (right to buy) | A | 120,000 | $0.00 | 120,000 | D | A |