- Corporate Officers - L
- Leonard Braden Michael
Insider Trading History of Leonard Braden Michael
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Leonard Braden Michael since 2015.
This trader's CIK number is 1373603.
At the time of last reporting, Leonard Braden Michael was the Officer of An2 Therapeutics, Inc.. (stock ticker symbol ANTX).
Also see all insider trading activities at An2 Therapeutics, Inc..
Note that in the past
Leonard Braden Michael also reported insider trading activities as an insider of the following companies:
Insider Activities at An2 Therapeutics, Inc. (ANTX)
Insider Activities at Adverum Biotechnologies, Inc. (ADVM)
Insider Activities at Onkure Therapeutics, Inc. (OKUR)
Insider Activities at Talis Biomedical Corp (TLIS)
Insider Activities at Aclaris Therapeutics, Inc. (ACRS)
Insider Activities at Tectonic Therapeutic, Inc. (TECX)
Insider Activities at Cyteir Therapeutics, Inc. (CYT)
Insider Activities at Enliven Therapeutics, Inc. (ELVN)
Insider Activities at Retractable Technologies Inc (RVP)
Insider Activities at Astrotech Corp (ASTC)
Insider Activities at Satsuma Pharmaceuticals, Inc. (STSA)
Insider Activities at Metacrine, Inc. (MTCR)
Insider Activities at Disc Medicine, Inc. (IRON)
Insider Activities at Prophase Labs, Inc. (PRPH)
Insider Activities at Build-a-bear Workshop Inc (BBW)
Yearly summary of insider trading at Retractable Technologies Inc (RVP) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | RVP | 846,875 | $3,225,965 | 6,252,400 | $10,105,524 | 0 | $0 |
Yearly summary of insider trading at Disc Medicine, Inc. (GMTX) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | GMTX | 955,000 | $1,333,684 | 22,500 | $47,025 | 0 | $0 |
Yearly summary of insider trading at Talis Biomedical Corp (TLIS) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | TLIS | 45,133 | $103,020 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Satsuma Pharmaceuticals, Inc. (STSA) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | STSA | 6,590,000 | $4,501,329 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Build-a-bear Workshop Inc (BBW) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | BBW | 0 | $0 | 177,000 | $1,599,928 | 0 | $0 |
| 2015 | BBW | 0 | $0 | 322,000 | $6,488,976 | 0 | $0 |
Yearly summary of insider trading at Enliven Therapeutics, Inc. (IMRA) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | IMRA | 0 | $0 | 2,500,000 | $10,000,000 | 0 | $0 |
| 2022 | IMRA | 717,774 | $964,563 | 90,000 | $364,598 | 0 | $0 |
Yearly summary of insider trading at Metacrine, Inc. (MTCR) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | MTCR | 976,799 | $385,371 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Onkure Therapeutics, Inc. (RPHM) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | RPHM | 1,199,482 | $1,728,044 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Adverum Biotechnologies, Inc. (ADVM) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ADVM | 950,472 | $3,787,962 | 0 | $0 | 0 | $0 |
| 2024 | ADVM | 302,064 | $2,399,153 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Tectonic Therapeutic, Inc. (AVRO) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | AVRO | 766,635 | $972,197 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at An2 Therapeutics, Inc. (ANTX) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | ANTX | 0 | $0 | 2,732,000 | $3,095,071 | 0 | $0 |
| 2024 | ANTX | 1,500,000 | $1,560,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Astrotech Corp (ASTC) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | ASTC | 2,344,153 | $941,292 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Cyteir Therapeutics, Inc. (CYT) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | CYT | 170,589 | $503,237 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Prophase Labs, Inc. (PRPH) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | PRPH | 0 | $0 | 1,695,305 | $3,899,201 | 0 | $0 |
Yearly summary of insider trading at Aclaris Therapeutics, Inc. (ACRS) by Leonard Braden Michael
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | ACRS | 4,309,052 | $4,964,605 | 0 | $0 | 0 | $0 |
Insider trading activities at 15 companies by Leonard Braden Michael:
1. Retractable Technologies Inc (RVP)
2. Disc Medicine, Inc. (GMTX)
3. Talis Biomedical Corp (TLIS)
4. Satsuma Pharmaceuticals, Inc. (STSA)
5. Build-a-bear Workshop Inc (BBW)
6. Enliven Therapeutics, Inc. (IMRA)
7. Metacrine, Inc. (MTCR)
8. Onkure Therapeutics, Inc. (RPHM)
9. Adverum Biotechnologies, Inc. (ADVM)
10. Tectonic Therapeutic, Inc. (AVRO)
11. An2 Therapeutics, Inc. (ANTX)
12. Astrotech Corp (ASTC)
13. Cyteir Therapeutics, Inc. (CYT)
14. Prophase Labs, Inc. (PRPH)
15. Aclaris Therapeutics, Inc. (ACRS)
Table 1. Insider trading of Retractable Technologies Inc (RVP) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-12-29 | RVP | Sale | 3,000,000 | 1.60 | 4,800,000 |
| 2022-12-29 | RVP | Sale | 3,000,000 | 1.60 | 4,800,000 |
| 2022-11-28 | RVP | Sale | 2,400 | 2.30 | 5,524 |
| 2022-11-29 | RVP | Sale | 250,000 | 2.00 | 500,000 |
| 2022-05-23 | RVP | Buy | 18,597 | 3.97 | 73,811 |
| 2022-05-25 | RVP | Buy | 44,877 | 3.99 | 179,104 |
| 2022-05-18 | RVP | Buy | 74,928 | 3.77 | 282,478 |
| 2022-05-17 | RVP | Buy | 40,984 | 3.85 | 157,706 |
| 2022-05-19 | RVP | Buy | 24,144 | 3.92 | 94,716 |
| 2022-05-16 | RVP | Buy | 97,725 | 3.99 | 390,020 |
| 2022-05-13 | RVP | Buy | 22,225 | 3.99 | 88,655 |
| 2022-05-12 | RVP | Buy | 19,931 | 3.77 | 75,080 |
| 2022-05-09 | RVP | Buy | 22,663 | 3.75 | 84,872 |
| 2022-05-10 | RVP | Buy | 20,801 | 3.95 | 82,226 |
| 2022-05-11 | RVP | Buy | 30,000 | 3.80 | 113,970 |
| 2022-04-29 | RVP | Buy | 120,502 | 3.78 | 455,738 |
| 2022-04-28 | RVP | Buy | 156,070 | 3.58 | 558,886 |
| 2022-05-02 | RVP | Buy | 153,428 | 3.84 | 588,703 |
Table 2. Insider trading of Disc Medicine, Inc. (GMTX) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-10-26 | GMTX | Sale | 22,500 | 2.09 | 47,025 |
| 2022-04-11 | GMTX | Buy | 504,487 | 1.35 | 681,057 |
| 2022-04-12 | GMTX | Buy | 258,744 | 1.40 | 360,947 |
| 2022-04-13 | GMTX | Buy | 191,769 | 1.52 | 291,680 |
Table 3. Insider trading of Talis Biomedical Corp (TLIS) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-09-05 | TLIS | Buy | 5,100 | 1.40 | 7,140 |
| 2024-09-06 | TLIS | Buy | 25,000 | 1.48 | 37,100 |
| 2024-09-03 | TLIS | Buy | 500 | 4.00 | 2,000 |
| 2024-08-30 | TLIS | Buy | 151 | 4.25 | 641 |
| 2024-08-28 | TLIS | Buy | 1,215 | 3.96 | 4,815 |
| 2024-08-26 | TLIS | Buy | 13,167 | 3.90 | 51,324 |
Table 4. Insider trading of Satsuma Pharmaceuticals, Inc. (STSA) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-11-21 | STSA | Buy | 150,000 | .71 | 106,800 |
| 2022-11-15 | STSA | Buy | 831,694 | .63 | 524,798 |
| 2022-11-14 | STSA | Buy | 5,608,306 | .69 | 3,869,731 |
Table 5. Insider trading of Build-a-bear Workshop Inc (BBW) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-09-29 | BBW | Sale | 2,000 | 9.20 | 18,400 |
| 2017-09-28 | BBW | Sale | 25,000 | 9.21 | 230,150 |
| 2017-09-22 | BBW | Sale | 26,206 | 9.05 | 237,242 |
| 2017-09-25 | BBW | Sale | 14,343 | 9.00 | 129,130 |
| 2017-09-26 | BBW | Sale | 7,070 | 9.01 | 63,707 |
| 2017-09-20 | BBW | Sale | 4,881 | 8.97 | 43,763 |
| 2017-09-19 | BBW | Sale | 17,500 | 9.03 | 158,007 |
| 2017-09-14 | BBW | Sale | 40,000 | 8.98 | 359,120 |
| 2017-09-15 | BBW | Sale | 5,846 | 9.00 | 52,614 |
| 2017-09-18 | BBW | Sale | 34,154 | 9.01 | 307,795 |
| 2015-08-14 | BBW | Sale | 4,882 | 21.02 | 102,619 |
| 2015-08-17 | BBW | Sale | 58,768 | 21.18 | 1,244,706 |
| 2015-08-13 | BBW | Sale | 6,350 | 21.02 | 133,502 |
| 2015-03-09 | BBW | Sale | 10,966 | 20.67 | 226,667 |
| 2015-03-11 | BBW | Sale | 1,034 | 20.12 | 20,804 |
| 2015-01-12 | BBW | Sale | 120,000 | 20.23 | 2,427,240 |
| 2015-01-07 | BBW | Sale | 48,200 | 19.25 | 927,753 |
| 2015-01-08 | BBW | Sale | 58,829 | 19.54 | 1,149,636 |
| 2015-01-09 | BBW | Sale | 1,171 | 19.54 | 22,881 |
| 2014-01-02 | BBW | Sale | 11,800 | 19.76 | 233,168 |
Table 6. Insider trading of Enliven Therapeutics, Inc. (IMRA) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-01-04 | IMRA | Sale | 1,250,000 | 4.00 | 5,000,000 |
| 2023-01-04 | IMRA | Sale | 1,250,000 | 4.00 | 5,000,000 |
| 2022-12-30 | IMRA | Sale | 20,000 | 4.04 | 80,800 |
| 2022-12-29 | IMRA | Sale | 19,843 | 4.04 | 80,165 |
| 2022-12-28 | IMRA | Sale | 157 | 4.04 | 634 |
| 2022-12-22 | IMRA | Sale | 1,078 | 4.06 | 4,376 |
| 2022-12-23 | IMRA | Sale | 48,922 | 4.06 | 198,623 |
| 2022-06-16 | IMRA | Buy | 83,199 | 1.11 | 92,267 |
| 2022-06-06 | IMRA | Buy | 2,630 | 1.16 | 3,050 |
| 2022-06-03 | IMRA | Buy | 30,800 | 1.14 | 34,988 |
| 2022-05-16 | IMRA | Buy | 15,000 | 1.17 | 17,580 |
| 2022-05-17 | IMRA | Buy | 26,145 | 1.26 | 32,838 |
| 2022-04-21 | IMRA | Buy | 552,000 | 1.40 | 772,800 |
| 2022-04-22 | IMRA | Buy | 8,000 | 1.38 | 11,040 |
Table 7. Insider trading of Metacrine, Inc. (MTCR) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-11-09 | MTCR | Buy | 39,816 | .39 | 15,528 |
| 2022-11-08 | MTCR | Buy | 500 | .40 | 200 |
| 2022-11-07 | MTCR | Buy | 123,954 | .42 | 52,308 |
| 2022-10-27 | MTCR | Buy | 767,507 | .39 | 299,327 |
| 2022-10-28 | MTCR | Buy | 45,022 | .40 | 18,008 |
Table 8. Insider trading of Onkure Therapeutics, Inc. (RPHM) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-09-25 | RPHM | Buy | 68,746 | 1.50 | 102,844 |
| 2024-09-24 | RPHM | Buy | 29,600 | 1.41 | 41,854 |
| 2024-09-17 | RPHM | Buy | 55,300 | 1.36 | 75,097 |
| 2024-09-18 | RPHM | Buy | 806 | 1.40 | 1,128 |
| 2024-09-13 | RPHM | Buy | 150,000 | 1.31 | 196,950 |
| 2024-09-16 | RPHM | Buy | 172,747 | 1.37 | 236,836 |
| 2024-09-12 | RPHM | Buy | 36,176 | 1.40 | 50,537 |
| 2024-08-14 | RPHM | Buy | 100,487 | 1.41 | 141,988 |
| 2024-08-13 | RPHM | Buy | 171,339 | 1.39 | 238,675 |
| 2024-05-14 | RPHM | Buy | 414,281 | 1.55 | 642,135 |
Table 9. Insider trading of Adverum Biotechnologies, Inc. (ADVM) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-03-26 | ADVM | Buy | 20,407 | 5.04 | 102,851 |
| 2025-03-27 | ADVM | Buy | 16,593 | 5.19 | 86,084 |
| 2025-03-26 | ADVM | Buy | 20,407 | 5.04 | 102,851 |
| 2025-03-27 | ADVM | Buy | 16,593 | 5.19 | 86,084 |
| 2025-04-23 | ADVM | Buy | 50,000 | 2.98 | 148,950 |
| 2025-04-22 | ADVM | Buy | 300,000 | 3.00 | 900,000 |
| 2025-04-02 | ADVM | Buy | 15,209 | 4.04 | 61,413 |
| 2025-03-31 | ADVM | Buy | 19,566 | 4.38 | 85,659 |
| 2025-03-26 | ADVM | Buy | 20,407 | 5.04 | 102,851 |
| 2025-03-27 | ADVM | Buy | 16,593 | 5.19 | 86,084 |
| 2025-03-18 | ADVM | Buy | 62,341 | 4.66 | 290,758 |
| 2025-03-19 | ADVM | Buy | 25,000 | 4.94 | 123,400 |
| 2025-03-20 | ADVM | Buy | 30,600 | 5.61 | 171,757 |
| 2025-02-27 | ADVM | Buy | 86,802 | 4.46 | 387,136 |
| 2025-02-26 | ADVM | Buy | 164,886 | 4.01 | 661,027 |
| 2025-02-28 | ADVM | Buy | 85,068 | 4.60 | 391,057 |
| 2024-07-30 | ADVM | Buy | 85,800 | 7.15 | 613,470 |
| 2024-07-18 | ADVM | Buy | 80,718 | 9.12 | 735,744 |
| 2024-07-17 | ADVM | Buy | 135,546 | 7.75 | 1,049,939 |
Table 10. Insider trading of Tectonic Therapeutic, Inc. (AVRO) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-05-14 | AVRO | Buy | 296,882 | 1.30 | 385,946 |
| 2024-05-13 | AVRO | Buy | 469,753 | 1.25 | 586,251 |
Table 11. Insider trading of An2 Therapeutics, Inc. (ANTX) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-05-28 | ANTX | Sale | 200,000 | 1.09 | 218,000 |
| 2025-05-28 | ANTX | Sale | 2,100,000 | 1.16 | 2,436,000 |
| 2025-05-30 | ANTX | Sale | 432,000 | 1.02 | 441,071 |
| 2024-08-14 | ANTX | Buy | 1,500,000 | 1.04 | 1,560,000 |
Table 12. Insider trading of Astrotech Corp (ASTC) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-12-02 | ASTC | Buy | 190,971 | .34 | 65,694 |
| 2022-12-02 | ASTC | Buy | 190,971 | .34 | 65,694 |
| 2022-12-02 | ASTC | Buy | 190,971 | .34 | 65,694 |
| 2022-11-23 | ASTC | Buy | 75,000 | .33 | 24,675 |
| 2022-11-18 | ASTC | Buy | 133,688 | .39 | 51,737 |
| 2022-11-17 | ASTC | Buy | 93,879 | .36 | 33,890 |
| 2022-11-16 | ASTC | Buy | 162,928 | .36 | 59,305 |
| 2022-10-14 | ASTC | Buy | 166,434 | .38 | 62,412 |
| 2022-10-18 | ASTC | Buy | 50,000 | .39 | 19,400 |
| 2022-09-23 | ASTC | Buy | 100,000 | .43 | 42,700 |
| 2022-09-26 | ASTC | Buy | 100,000 | .44 | 44,100 |
| 2022-09-27 | ASTC | Buy | 157,929 | .44 | 69,804 |
| 2022-09-02 | ASTC | Buy | 129,990 | .47 | 60,965 |
| 2022-09-01 | ASTC | Buy | 122,070 | .46 | 56,274 |
| 2022-08-23 | ASTC | Buy | 311,733 | .45 | 139,344 |
| 2022-08-24 | ASTC | Buy | 167,589 | .47 | 79,604 |
Table 13. Insider trading of Cyteir Therapeutics, Inc. (CYT) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-03-20 | CYT | Buy | 170,589 | 2.95 | 503,237 |
Table 14. Insider trading of Prophase Labs, Inc. (PRPH) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-09-29 | PRPH | Sale | 1,695,305 | 2.30 | 3,899,201 |
Table 15. Insider trading of Aclaris Therapeutics, Inc. (ACRS) by Leonard Braden Michael
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-08-05 | ACRS | Buy | 206,025 | 1.24 | 256,295 |
| 2024-08-02 | ACRS | Buy | 167,544 | 1.29 | 216,466 |
| 2024-07-31 | ACRS | Buy | 100,000 | 1.33 | 132,600 |
| 2024-07-30 | ACRS | Buy | 173,730 | 1.30 | 226,370 |
| 2024-07-19 | ACRS | Buy | 6,689 | 1.30 | 8,695 |
| 2024-07-22 | ACRS | Buy | 17,716 | 1.33 | 23,562 |
| 2024-07-18 | ACRS | Buy | 130,317 | 1.30 | 169,542 |
| 2024-07-02 | ACRS | Buy | 86,092 | 1.14 | 98,489 |
| 2024-07-03 | ACRS | Buy | 143,288 | 1.16 | 166,070 |
| 2024-07-05 | ACRS | Buy | 123,017 | 1.15 | 141,346 |
| 2024-07-01 | ACRS | Buy | 107,434 | 1.14 | 122,152 |
| 2024-06-28 | ACRS | Buy | 1,201,000 | 1.12 | 1,351,125 |
| 2024-06-27 | ACRS | Buy | 235,000 | 1.16 | 271,425 |
| 2024-06-11 | ACRS | Buy | 1,000,000 | 1.08 | 1,080,000 |
| 2024-06-12 | ACRS | Buy | 82,579 | 1.14 | 94,140 |
| 2024-06-13 | ACRS | Buy | 528,621 | 1.15 | 606,328 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Leonard Braden Michael
(Officer of An2 Therapeutics, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.