Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2019-04-18 Sale | 2019-04-22 2:12 pm | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 1,350 | $1.245 | $1,681 | 31,710 (Direct) | View |
2018-11-15 Purchase | 2018-11-15 7:13 pm | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 5,000 | $6 | $30,000 | 59,745 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2023-03-03 Option Award | 2023-03-03 4:10 pm | N/A 2033-02-19 | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 25,000 | $0 | 134,555 (Direct) | View |
2023-01-27 Option Award | 2023-01-31 6:14 pm | N/A 2032-02-01 | Ambrx Biopharma Inc. | AMAM | MAIER PAUL V Director | 315,000 | $0 | 315,000 (Direct) | View |
2023-01-27 Disposition | 2023-01-31 6:14 pm | N/A 2032-02-01 | Ambrx Biopharma Inc. | AMAM | MAIER PAUL V Director | 315,000 | $0 | 315,000 (Direct) | View |
Ownership | 2023-01-03 6:30 pm | N/A 2032-02-01 | Ambrx Biopharma Inc. | AMAM | MAIER PAUL V Director | 0 | $0 | 315,000 (Direct) | View |
2022-06-09 Option Award | 2022-06-10 5:01 pm | N/A 2032-06-09 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 169,264 | $0 | 169,264 (Direct) | View |
2022-02-07 Option Award | 2022-02-28 4:36 pm | N/A 2032-02-07 | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 50,000 | $0 | 109,555 (Direct) | View |
2021-06-09 Option Award | 2021-06-11 2:11 pm | N/A 2031-06-09 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 213,481 | $0 | 213,481 (Direct) | View |
2021-05-03 Option Award | 2021-05-05 4:15 pm | N/A 2031-05-03 | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 19,655 | $0 | 59,555 (Direct) | View |
2020-06-23 Option Award(A) | 2020-06-26 6:04 pm | N/A 2030-06-23 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 92,857 | $0 | 92,857 (Direct) | View |
2020-06-23 Option Award | 2020-06-24 4:43 pm | N/A 2030-06-23 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 76,428 | $0 | 76,428 (Direct) | View |
2020-03-12 Option Award | 2020-03-16 4:54 pm | N/A 2030-03-11 | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 27,400 | $0 | 27,400 (Direct) | View |
2020-01-15 Option Award | 2020-01-17 6:06 pm | N/A 2030-01-15 | RITTER PHARMACEUTICALS INC | RTTR | MAIER PAUL V Director | 12,000 | $0 | 12,000 (Direct) | View |
2019-06-03 Option Award | 2019-06-05 1:46 pm | N/A 2019-06-03 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 101,982 | $0 | 101,982 (Direct) | View |
2019-02-20 Option Award | 2019-03-08 4:34 pm | N/A 2029-02-19 | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 12,500 | $0 | 12,500 (Direct) | View |
2019-02-06 Option Award | 2019-02-08 4:13 pm | N/A 2029-02-06 | RITTER PHARMACEUTICALS INC | RTTR | MAIER PAUL V Director | 15,000 | $0 | 15,000 (Direct) | View |
Ownership | 2018-11-13 5:14 pm | N/A N/A | Eton Pharmaceuticals Inc. | ETON | MAIER PAUL V Director | 0 | $0 | 79,745 (Direct) | View |
2018-06-21 Option Award | 2018-06-25 4:18 pm | N/A 2028-06-21 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 77,117 | $0 | 77,117 (Direct) | View |
2018-04-02 Exercise(A) | 2018-04-04 06:13 am | N/A N/A | MABVAX THERAPEUTICS HOLDINGS INC. | MBVX | MAIER PAUL V Director | 513 | $0 | 23,063 (Direct) | View |
2018-03-30 Option Award | 2018-04-03 6:36 pm | N/A 2028-03-30 | International Stem Cell CORP | ISCO | MAIER PAUL V Director | 11,054 | $0 | 11,054 (Direct) | View |
2018-04-02 Exercise | 2018-04-03 6:26 pm | N/A N/A | MABVAX THERAPEUTICS HOLDINGS INC. | MBVX | MAIER PAUL V Director | 513 | $0 | 23,462 (Direct) | View |