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 |
2025-02-05 Sale |
2025-02-05 8:30 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
69,219 | $0.78 | $53,991 | 689,866 (Direct) |
View |
2024-08-27 Sale |
2024-08-29 6:43 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
5,912 | $1.35 | $7,981 | 759,085 (Direct) |
View |
2024-02-02 Sale |
2024-02-05 8:50 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
63,795 | $1.37 | $87,399 | 744,997 (Direct) |
View |
2023-08-28 Sale |
2023-08-30 4:21 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
9,040 | $1.26 | $11,390 | 788,792 (Direct) |
View |
2023-02-03 Sale |
2023-02-06 4:15 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
12,286 | $1.81 | $22,238 | 797,832 (Direct) |
View |
2021-12-27 Sale |
2021-12-29 6:26 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
8,000 | $14.58 | $116,666 | 630,845 (Direct) |
View |
2020-11-03 Sale |
2020-11-05 7:00 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
9,507 | $14.39 | $136,825 | 1,062,805 (Direct) |
View |
2020-10-23 Sale |
2020-10-27 5:32 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
20 | $14.25 | $285 | 570,133 (Direct) |
View |
2020-10-13 Sale |
2020-10-15 8:24 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
14,472 | $14.28 | $206,709 | 1,074,594 (Direct) |
View |
2020-09-08 Sale |
2020-09-10 9:51 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
774 | $14.25 | $11,030 | 584,625 (Direct) |
View |
2020-07-07 Sale |
2020-07-09 6:48 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
3,047 | $14.29 | $43,552 | 1,107,274 (Direct) |
View |
2020-06-22 Sale |
2020-06-29 9:21 pm |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
17,180 | $14.3 | $245,699 | 2,180,064 (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 |
2024-05-29 Option Award |
2024-05-30 4:25 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
20,000 | $0 | 764,997 (Direct) |
View |
2023-10-05 Option Award |
2023-10-10 5:18 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit Director |
20,000 | $0 | 808,792 (Direct) |
View |
2023-02-01 Option Award |
2023-02-03 7:38 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
531,914 | $0 | 810,118 (Direct) |
View |
2022-02-01 Option Award |
2022-02-03 4:18 pm |
N/A 2032-02-01 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
321,898 | $0 | 465,934 (Direct) |
View |
2021-12-27 Exercise |
2021-12-29 6:26 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
8,000 | $5.9 | 630,845 (Direct) |
View |
2021-12-27 Exercise |
2021-12-29 6:26 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
8,000 | $0 | 630,845 (Direct) |
View |
2021-08-26 Option Award |
2021-08-30 4:15 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
78,219 | $0 | 144,036 (Direct) |
View |
2021-02-01 Option Award |
2021-02-03 7:44 pm |
N/A 2031-02-01 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit See Remarks |
179,319 | $0 | 179,319 (Direct) |
View |
2020-11-03 Exercise |
2020-11-05 7:00 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
9,507 | $5.9 | 1,062,805 (Direct) |
View |
2020-11-03 Exercise |
2020-11-05 7:00 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
9,507 | $0 | 1,062,805 (Direct) |
View |
2020-10-23 Exercise |
2020-10-27 5:32 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
20 | $5.9 | 570,133 (Direct) |
View |
2020-10-23 Exercise |
2020-10-27 5:32 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
20 | $0 | 570,133 (Direct) |
View |
2020-10-13 Exercise |
2020-10-15 8:24 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
14,472 | $5.9 | 1,074,594 (Direct) |
View |
2020-10-13 Exercise |
2020-10-15 8:24 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
14,472 | $0 | 1,074,594 (Direct) |
View |
2020-09-08 Exercise |
2020-09-10 9:51 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
774 | $5.9 | 584,625 (Direct) |
View |
2020-09-08 Exercise |
2020-09-10 9:51 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
774 | $0 | 584,625 (Direct) |
View |
2020-07-07 Exercise |
2020-07-09 6:48 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
3,047 | $5.9 | 1,107,274 (Direct) |
View |
2020-07-07 Exercise |
2020-07-09 6:48 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
3,047 | $0 | 1,107,274 (Direct) |
View |
2020-06-22 Exercise |
2020-06-29 9:21 pm |
N/A N/A |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
17,180 | $5.9 | 2,180,064 (Direct) |
View |
2020-06-22 Exercise |
2020-06-29 9:21 pm |
N/A 2027-07-05 |
Spero Therapeutics Inc. | SPRO | Mahadevia Ankit CEO and President |
17,180 | $0 | 2,180,064 (Direct) |
View |