Teresa A. Harris
CIK: 0001720317
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- May 7, 2026ZD
ZIFF DAVIS, INC.
Exercise(M)Direct7.9K shares at avg. $43.31$342K - May 6, 2026ZD
ZIFF DAVIS, INC.
Award(A)DirectRestricted Stock Units
5.7K shares- - May 7, 2025ZD
ZIFF DAVIS, INC.
Exercise(M)DirectRestricted Stock Units
7.9K shares- - May 7, 2025ZD
ZIFF DAVIS, INC.
Exercise(M)Direct3.6K shares at avg. $31.63$114K - May 7, 2025ZD
ZIFF DAVIS, INC.
Award(A)DirectRestricted Stock Units
7.9K shares- - Mar 26, 2025ALTR
Altair Engineering Inc.
Disposition(D)Direct18.1K shares at avg. $113.00$2.0M - Mar 6, 2025ALTR
Altair Engineering Inc.
Sale(S)Direct450 shares at avg. $111.08$50K - Feb 27, 2025ZD
ZIFF DAVIS, INC.
Purchase(P)Direct593 shares at avg. $42.11$25K - Feb 25, 2025ALTR
Altair Engineering Inc.
Sale(S)Direct2.7K shares at avg. $111.61$301K - Nov 5, 2024ALTR
Altair Engineering Inc.
Exercise(M)Direct620 shares- - Nov 5, 2024ALTR
Altair Engineering Inc.
Sale(S)Direct620 shares at avg. $104.10$65K - Oct 1, 2024ALTR
Altair Engineering Inc.
Exercise(M)Direct620 shares- - Oct 1, 2024ALTR
Altair Engineering Inc.
Sale(S)Direct620 shares at avg. $95.12$59K - Sep 3, 2024ALTR
Altair Engineering Inc.
Exercise(M)Direct620 shares- - Sep 3, 2024ALTR
Altair Engineering Inc.
Sale(S)Direct620 shares at avg. $89.70$56K - May 7, 2024ZD
ZIFF DAVIS, INC.
Exercise(M)DirectRestricted Stock Units
3.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 7, 2026 |  ZD ZIFF DAVIS, INC. | Exercise(M) | 7,903 | $43.31 | $342,279 | Direct |
| May 6, 2026 | ZD ZIFF DAVIS, INC. | Award(A) Restricted Stock Units | 5,723 | - | - | Direct |
| May 7, 2025 | ZD ZIFF DAVIS, INC. | Exercise(M) Restricted Stock Units | 7,903 | - | - | Direct |
| May 7, 2025 | ZD ZIFF DAVIS, INC. | Exercise(M) | 3,610 | $31.63 | $114,184 | Direct |
| May 7, 2025 | ZD ZIFF DAVIS, INC. | Award(A) Restricted Stock Units | 7,903 | - | - | Direct |
| Mar 26, 2025 |  ALTR Altair Engineering Inc. | Disposition(D) | 18,092 | $113.00 | $2,044,396 | Direct |
| Mar 6, 2025 | ALTR Altair Engineering Inc. | Sale(S) | 450 | $111.08 | $49,984 | Direct |
| Feb 27, 2025 | ZD ZIFF DAVIS, INC. | Purchase(P) | 593 | $42.11 | $24,971 | Direct |
| Feb 25, 2025 | ALTR Altair Engineering Inc. | Sale(S) | 2,700 | $111.61 | $301,356 | Direct |
| Nov 5, 2024 | ALTR Altair Engineering Inc. | Exercise(M) | 620 | - | $0 | Direct |
| Nov 5, 2024 | ALTR Altair Engineering Inc. | Sale(S) | 620 | $104.10 | $64,542 | Direct |
| Oct 1, 2024 | ALTR Altair Engineering Inc. | Exercise(M) | 620 | - | $0 | Direct |
| Oct 1, 2024 | ALTR Altair Engineering Inc. | Sale(S) | 620 | $95.12 | $58,974 | Direct |
| Sep 3, 2024 | ALTR Altair Engineering Inc. | Exercise(M) | 620 | - | $0 | Direct |
| Sep 3, 2024 | ALTR Altair Engineering Inc. | Sale(S) | 620 | $89.70 | $55,614 | Direct |
| May 7, 2024 | ZD ZIFF DAVIS, INC. | Exercise(M) Restricted Stock Units | 3,610 | - | - | Direct |
1-16 of 16 transactions
About Harris Teresa A
Harris Teresa A (SEC CIK 0001720317) files insider reports with the SEC as Director of ZIFF DAVIS, INC. (ZD) and Director of Altair Engineering Inc. (ALTR).
Signal8 holds 9 ownership filings by Harris Teresa A, all Form 4s, filed between Sep 4, 2024 and May 8, 2026. Those filings report 16 transactions, from May 7, 2024 to May 7, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Harris Teresa A's filings is in TROY, MI.
Recent filings by Harris Teresa A
- May 7, 2026: Option exercise of ZD shares (Form 4, code M).
- May 6, 2026: Grant or award of ZD derivative securities (Form 4, code A).
- May 7, 2025: Option exercises of ZD derivative securities (2 lines, Form 4, code M).
- May 7, 2025: Grant or award of ZD derivative securities (Form 4, code A).
- Mar 26, 2025: Disposition to issuer transaction of ALTR shares (Form 4, code D).
Other insiders filing for ZIFF DAVIS, INC. (ZD)
- KRETZMER W BRIAN, Director
- TANSLEY LORI A., Chief Accounting Officer
- ROSSEN JEREMY, EVP/General Counsel
- RICHTER BRET, Chief Financial Officer
- McDonald Kirk P, Director
- Barsten Jana, Director