MADDOCK ERNEST E
SEC insider (Form 3/4/5 filer). CIK 0001227050. Director at TERADYNE, INC (TER) and 3 other issuers. 28 reported Form 4/5 transactions since Sep 2024; latest on Sep 25, 2026. Located in PHOENIX, AZ.
Companies MADDOCK ERNEST E has filed insider reports for
- TERADYNE, INC (TER): Director
- AVNET INC (AVT): Director
- Ouster, Inc. (OUST): Director
- Ultra Clean Holdings, Inc. (UCTT): Director
MADDOCK ERNEST E
CIK: 0001227050
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 (28 total)
- Sep 25, 2026TER
TERADYNE, INC
OtherDirect2 shares- - Sep 23, 2026AVT
AVNET INC
AwardDirectPhantom Stock Units
60 shares at avg. $110.17- - Jun 17, 2026AVT
AVNET INC
AwardDirectPhantom Stock Units
62 shares at avg. $90.91- - Jun 17, 2026OUST
Ouster, Inc.
AwardDirect4.7K shares- - Jun 12, 2026TER
TERADYNE, INC
OtherDirect2 shares- - May 22, 2026UCTT
Ultra Clean Holdings, Inc.
AwardDirect2.6K shares- - May 8, 2026TER
TERADYNE, INC
AwardDirect668 shares- - Mar 18, 2026AVT
AVNET INC
AwardDirectPhantom Stock Units
94 shares at avg. $59.96- - Mar 13, 2026TER
TERADYNE, INC
OtherDirect2 shares- - Jan 2, 2026AVT
AVNET INC
AwardDirectPhantom Stock Units
4.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 25, 2026 |  TER TERADYNE, INC | Other | 2 | - | $0 | Direct |
| Sep 23, 2026 |  AVT AVNET INC | Award Phantom Stock Units | 60 | $110.17 | - | Direct |
| Jun 17, 2026 | AVT AVNET INC | Award Phantom Stock Units | 62 | $90.91 | - | Direct |
| Jun 17, 2026 |  OUST Ouster, Inc. | Award | 4,725 | - | $0 | Direct |
| Jun 12, 2026 | TER TERADYNE, INC | Other | 2 | - | $0 | Direct |
| May 22, 2026 |  UCTT Ultra Clean Holdings, Inc. | Award | 2,575 | - | $0 | Direct |
| May 8, 2026 | TER TERADYNE, INC | Award | 668 | - | $0 | Direct |
| Mar 18, 2026 | AVT AVNET INC | Award Phantom Stock Units | 94 | $59.96 | - | Direct |
| Mar 13, 2026 | TER TERADYNE, INC | Other | 2 | - | $0 | Direct |
| Jan 2, 2026 | AVT AVNET INC | Award Phantom Stock Units | 4,078 | - | - | Direct |
1-10 of 28 transactions