Updated Jul 16, 2026
Harris Teresa A has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $124K.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-08 | ZD | ZIFF DAVIS, INC. | M — Option exercise | 7.9K | $43.31 | $342K |
| 2025-05-07 | ZD | ZIFF DAVIS, INC. | M — Option exercise | 3.6K | $31.63 | $114K |
| 2024-11-06 | ALTR | Altair Engineering Inc. | S — Open-market sale [10b5-1] | 620 | $104.10 | $65K |
| 2024-11-06 | ALTR | Altair Engineering Inc. | M — Option exercise [10b5-1] | 620 | $0.00 | |
| 2024-10-01 | ALTR | Altair Engineering Inc. | S — Open-market sale [10b5-1] | 620 | $95.12 | $59K |
| 2024-10-01 | ALTR | Altair Engineering Inc. | M — Option exercise [10b5-1] | 620 | $0.00 |
Harris Teresa A is a corporate insider — currently tracked as Insider of ZIFF DAVIS, INC. (ZD). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($124K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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