The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Harris Teresa A since 2021.
This trader's CIK number is 1720317.
At the time of last reporting, Harris Teresa A was the Officer of Ziff Davis, Inc.. (stock ticker symbol ZD).
Also see all insider trading activities at Ziff Davis, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ZD | 593 | $24,971 | 0 | $0 | 3,610 | $114,184 |
| 2024 | ZD | 1,000 | $46,760 | 0 | $0 | 3,013 | $164,148 |
| 2023 | ZD | 0 | $0 | 0 | $0 | 2,513 | $164,576 |
| 2022 | ZD | 0 | $0 | 0 | $0 | 1,654 | $119,319 |
| 2021 | ZD | 460 | $49,772 | 0 | $0 | 0 | $0 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ALTR | 0 | $0 | 2,700 | $301,357 | 0 | $0 |
| 2024 | ALTR | 0 | $0 | 5,580 | $500,381 | 5,580 | $0 |
| 2023 | ALTR | 0 | $0 | 2,400 | $174,672 | 2,400 | $0 |
2. Altair Engineering Inc. (ALTR)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-05-07 | ZD | Option Ex | 3,610 | 31.63 | 114,184 |
| 2025-02-27 | ZD | Buy | 593 | 42.11 | 24,971 |
| 2024-08-27 | ZD | Buy | 1,000 | 46.76 | 46,760 |
| 2024-05-05 | ZD | Option Ex | 3,013 | 54.48 | 164,148 |
| 2023-05-10 | ZD | Option Ex | 2,513 | 65.49 | 164,576 |
| 2022-06-19 | ZD | Option Ex | 1,654 | 72.14 | 119,319 |
| 2021-12-03 | ZD | Buy | 460 | 108.20 | 49,772 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-02-25 | ALTR | Sale | 2,700 | 111.61 | 301,357 |
| 2024-11-05 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-11-05 | ALTR | Sale | 620 | 104.10 | 64,542 |
| 2024-10-01 | ALTR | Sale | 620 | 95.12 | 58,974 |
| 2024-10-01 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-09-03 | ALTR | Sale | 620 | 89.70 | 55,614 |
| 2024-09-03 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-08-06 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-08-06 | ALTR | Sale | 620 | 82.57 | 51,193 |
| 2024-07-09 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-07-09 | ALTR | Sale | 620 | 97.73 | 60,592 |
| 2024-06-04 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-06-04 | ALTR | Sale | 620 | 85.95 | 53,289 |
| 2024-05-07 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-05-07 | ALTR | Sale | 620 | 82.89 | 51,391 |
| 2024-04-02 | ALTR | Option Ex | 620 | .00 | 0 |
| 2024-04-02 | ALTR | Sale | 620 | 84.00 | 52,080 |
| 2024-03-05 | ALTR | Sale | 620 | 85.01 | 52,706 |
| 2024-03-05 | ALTR | Option Ex | 620 | .00 | 0 |
| 2023-12-06 | ALTR | Option Ex | 600 | .00 | 0 |
| 2023-12-06 | ALTR | Sale | 600 | 71.65 | 42,990 |
| 2023-11-14 | ALTR | Option Ex | 1,800 | .00 | 0 |
| 2023-11-14 | ALTR | Sale | 1,800 | 73.16 | 131,682 |
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 Harris Teresa A (Officer of Ziff Davis, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.