TERTeradyne, Inc.
Technology · Semiconductor Equipment & MaterialsNasdaqStockMkt cap $58.3B
Disclosed trades
15
0 in 30d · 0 in 90d
Politicians
6
Last trade Apr 29, 2026
Buys
8
$88.5K at range midpoints
Sells
7
$56K at range midpoints
Closing price · 365 days
Sep 24, 2025 – Sep 23, 2026
Monthly buys vs sells · 24 months
Counts of disclosed transactions
- Buys
- Sells (incl. partial)
Politicians who traded it
4 hold it now Estimated
| Politician | Seat | Trades | Buys | Sells | Bought (mid) | Sold (mid) | Last trade | Est. position Estimated |
|---|---|---|---|---|---|---|---|---|
| RLisa C. McClain | House · MI-09 | 4 | 2 | 2 | $16K | $16K | Oct 31, 2025 | $18.9K |
| DJulie Johnson | House · TX-32 | 3 | 1 | 2 | $8K | $16K | Apr 1, 2025 | — |
| DSusie Lee | House · NV-03 | 3 | 2 | 1 | $16K | $8K | Jun 9, 2021 | $23.2K |
| RTommy Tuberville | Senate · AL | 3 | 1 | 2 | $8K | $16K | May 3, 2024 | — |
| RAlan Armstrong | Senate · OK | 1 | 1 | 0 | $8K | $0 | Mar 27, 2026 | $10.5K |
| RMichael T. McCaul | House · TX-10 | 1 | 1 | 0 | $32.5K | $0 | Apr 29, 2026 | $41.3K |
Recent trades
| Politician | Ticker | Asset | Type | Owner | Amount | Traded | Filed | Source |
|---|---|---|---|---|---|---|---|---|
| RTommy Tuberville | TER | Teradyne, Inc. - Common Stock | Sell | Joint | $1,001 - $15,000 | May 3, 2024 | Aug 5, 2026824d | Filing |
| RAlan Armstrong | TER | Teradyne, Inc. - Common Stock | Buy | Self | $1,001 - $15,000 | Mar 27, 2026 | Jul 21, 2026116d | Filing |
| RMichael T. McCaul | TER | TERADYNE INC | Buy | Spouse | $15,001 - $50,000 | Apr 29, 2026 | May 4, 20265d | FilingOCR |
| RLisa C. McClain | TER | Teradyne, Inc. (TER) | Sell | Spouse | $1,001 - $15,000 | Oct 31, 2025 | Nov 21, 202521d | Filing |
| RLisa C. McClain | TER | Teradyne, Inc. (TER) | Buy | Spouse | $1,001 - $15,000 | Oct 30, 2025 | Nov 21, 202522d | Filing |
| RLisa C. McClain | TER | Teradyne, Inc. (TER) | Sell | Spouse | $1,001 - $15,000 | Oct 30, 2025 | Nov 21, 202522d | Filing |
| RLisa C. McClain | TER | Teradyne, Inc. (TER) | Buy | Spouse | $1,001 - $15,000 | Jun 17, 2025 | Aug 13, 202557d | Filing |
| DJulie Johnson | TER | Teradyne, Inc. (TER) | Sell | Joint | $1,001 - $15,000 | Apr 1, 2025 | May 14, 202543d | Filing |
| DJulie Johnson | TER | Teradyne, Inc. (TER) | Sell | Joint | $1,001 - $15,000 | Mar 3, 2025 | Apr 14, 202542d | Filing |
| DJulie Johnson | TER | Teradyne, Inc. (TER) | Buy | Joint | $1,001 - $15,000 | Feb 12, 2025 | Mar 12, 202528d | Filing |
| RTommy Tuberville | TER | Teradyne, Inc. - Common Stock | Sell | Joint | $1,001 - $15,000 | May 3, 2024 | Jun 14, 202442d | Filing |
| RTommy Tuberville | TER | Teradyne, Inc. | Buy | Joint | $1,001 - $15,000 | Mar 29, 2021 | Jul 23, 2021116d | Filing |
| DSusie Lee | TER | Teradyne, Inc. (TER) | Sell | Joint | $1,001 - $15,000 | Jun 9, 2021 | Jul 13, 202134d | Filing |
| DSusie Lee | TER | Teradyne, Inc. (TER) | Buy | Joint | $1,001 - $15,000 | Apr 1, 2021 | May 10, 202139d | Filing |
| DSusie Lee | TER | Teradyne, Inc. (TER) | Buy | Joint | $1,001 - $15,000 | Feb 23, 2021 | Mar 11, 202116d | Filing |
Insider activity Filed
Insiders
23
Instruments For Meas & Testing of Electricity & Elec Signals
Open-market buys · 90d
0
$0 bought
Open-market sells · 90d
10
$6M sold
Net · 90d
-$6M
-$14.4M net over 12 months · last Sep 17, 2026
| Date | Insider | Kind | Security | Shares | Price | Value | Post-holdings | D/I | 10b5-1 | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 17, 2026filed Sep 18, 2026 | Marilyn Matz | Sale | Common Stock | −400 | $351.11 | $140,444 | 13,840.67 | D | 10b5-1 | 4 |
| Sep 15, 2026filed Sep 16, 2026 | Gregory Stephen SmithPresident and CEO | Sale | Common Stock | −4,000 | $337.83 | $1,351,320 | 108,495.41 | D | 10b5-1 | 4 |
| Sep 15, 2026filed Sep 16, 2026 | Marilyn Matz | Sale | Common Stock | −800 | $337.83 | $270,264 | 14,240.67 | D | 10b5-1 | 4 |
| Sep 1, 2026filed Sep 2, 2026 | Mercedes Johnson | Sale | Common Stock | −167 | $341.30 | $56,997 | 6,364 | D | 10b5-1 | 4 |
| Aug 17, 2026filed Aug 18, 2026 | Gregory Stephen SmithPresident and CEO | Sale | Common Stock | −4,000 | $425.00 | $1,700,000 | 112,495.41 | D | 10b5-1 | 4 |
| Aug 17, 2026filed Aug 18, 2026 | Marilyn Matz | Sale | Common Stock | −1,200 | $425.00 | $510,000 | 15,040.67 | D | 10b5-1 | 4 |
| Aug 3, 2026filed Aug 4, 2026 | Mercedes Johnson | Sale | Common Stock | −166 | $358.15 | $59,453 | 6,531 | D | 10b5-1 | 4 |
| Jul 15, 2026filed Jul 16, 2026 | Gregory Stephen SmithPresident and CEO | Sale | Common Stock | −4,000 | $356.31 | $1,425,240 | 116,495.41 | D | 10b5-1 | 4 |
| Jul 15, 2026filed Jul 16, 2026 | Marilyn Matz | Sale | Common Stock | −1,200 | $356.31 | $427,572 | 16,240.67 | D | 10b5-1 | 4 |
| Jul 1, 2026filed Jul 2, 2026 | Mercedes Johnson | Sale | Common Stock | −167 | $460.00 | $76,820 | 6,697 | D | 10b5-1 | 4 |
Shares, prices and post-transaction holdings are exactly as reported on SEC Form 4. Net figures count open-market buys minus open-market sales only (awards, exercises, withholding and gifts are excluded).
Unusual activity Estimated
- 65Insider overlapApr 29, 2026
Rep. Michael T. McCaul bought TER 16 days before its CEO sold $2.9M
Details
- Politician
- Michael T. McCaul
- Ticker
- TER
- Asset
- TERADYNE INC
- Tx type
- buy
- Tx date
- Apr 29, 2026
- Filing date
- May 4, 2026
- Amount low
- $15,001
- Amount high
- $50,000
- Amount mid
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 5
- Is whale
- No
- Insider trade
- {"insider":{"slug":"gregory-stephen-smith","name":"Gregory Stephen Smith","title":"President and CEO","short_title":"CEO"},"company":"TERADYNE, INC","ticker":"TER","tx_kind":"open_market_sale","tx_date":"2026-05-15","shares":8597,"price":338.98,"value":2914211.06,"is_10b5_1":true}
- Days between
- -16
- Opposite side
- Yes
- 58Committee overlapApr 29, 2026
Homeland Security vice chair Michael T. McCaul bought $15,001–$50,000 of TER
Details
- Committee
- House Committee on Homeland Security
- Title
- Vice Chair
- Leadership seat
- Yes
- Sector
- Technology
- Disclosed range
- $15,001 - $50,000
- 50Well timedApr 29, 2026
Rep. Michael T. McCaul's TER buy is up 25% after 30 days
Details
- Politician
- Michael T. McCaul
- Ticker
- TER
- Asset
- TERADYNE INC
- Tx type
- buy
- Tx date
- Apr 29, 2026
- Filing date
- May 4, 2026
- Amount low
- $15,001
- Amount high
- $50,000
- Amount mid
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 5
- Is whale
- No
- Entry date
- Apr 29, 2026
- Entry close
- 306.33
- Exit date
- Jun 11, 2026
- Exit close
- 381.40
- Forward return
- +24.5%
- Sign adjusted return
- +24.5%
- N trading days
- 30
- 65Insider overlapMar 27, 2026
Sen. Alan Armstrong bought TER 6 days before its President sold $73K
Details
- Politician
- Alan Armstrong
- Ticker
- TER
- Asset
- Teradyne, Inc. - Common Stock
- Tx type
- buy
- Tx date
- Mar 27, 2026
- Filing date
- Jul 21, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 116
- Is whale
- No
- Insider trade
- {"insider":{"slug":"regan-mills","name":"Regan Mills","title":"President, Product Test","short_title":"President"},"company":"TERADYNE, INC","ticker":"TER","tx_kind":"open_market_sale","tx_date":"2026-04-02","shares":252,"price":290.88,"value":73301.76,"is_10b5_1":true}
- Days between
- -6
- Opposite side
- Yes
- 49Well timedMar 27, 2026
Sen. Alan Armstrong's TER buy is up 24% after 30 days
Details
- Politician
- Alan Armstrong
- Ticker
- TER
- Asset
- Teradyne, Inc. - Common Stock
- Tx type
- buy
- Tx date
- Mar 27, 2026
- Filing date
- Jul 21, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 116
- Is whale
- No
- Entry date
- Mar 27, 2026
- Entry close
- 295.61
- Exit date
- May 11, 2026
- Exit close
- 366.64
- Forward return
- +24.0%
- Sign adjusted return
- +24.0%
- N trading days
- 30
- 50Insider overlapOct 31, 2025
Rep. Lisa C. McClain sold TER 12 days before its CEO sold $200K
Details
- Politician
- Lisa C. McClain
- Ticker
- TER
- Asset
- Teradyne, Inc. (TER)
- Tx type
- sell
- Tx date
- Oct 31, 2025
- Filing date
- Nov 21, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 21
- Is whale
- No
- Insider trade
- {"insider":{"slug":"gregory-stephen-smith","name":"Gregory Stephen Smith","title":"President and CEO","short_title":"CEO"},"company":"TERADYNE, INC","ticker":"TER","tx_kind":"open_market_sale","tx_date":"2025-11-12","shares":1108,"price":180.2,"value":199661.6,"is_10b5_1":true}
- Days between
- -12
- Opposite side
- No
- 65Insider overlapOct 30, 2025
Rep. Lisa C. McClain bought TER 13 days before its CEO sold $200K
Details
- Politician
- Lisa C. McClain
- Ticker
- TER
- Asset
- Teradyne, Inc. (TER)
- Tx type
- buy
- Tx date
- Oct 30, 2025
- Filing date
- Nov 21, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 22
- Is whale
- No
- Insider trade
- {"insider":{"slug":"gregory-stephen-smith","name":"Gregory Stephen Smith","title":"President and CEO","short_title":"CEO"},"company":"TERADYNE, INC","ticker":"TER","tx_kind":"open_market_sale","tx_date":"2025-11-12","shares":1108,"price":180.2,"value":199661.6,"is_10b5_1":true}
- Days between
- -13
- Opposite side
- Yes
- 50Insider overlapOct 30, 2025
Rep. Lisa C. McClain sold TER 13 days before its CEO sold $200K
Details
- Politician
- Lisa C. McClain
- Ticker
- TER
- Asset
- Teradyne, Inc. (TER)
- Tx type
- sell
- Tx date
- Oct 30, 2025
- Filing date
- Nov 21, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 22
- Is whale
- No
- Insider trade
- {"insider":{"slug":"gregory-stephen-smith","name":"Gregory Stephen Smith","title":"President and CEO","short_title":"CEO"},"company":"TERADYNE, INC","ticker":"TER","tx_kind":"open_market_sale","tx_date":"2025-11-12","shares":1108,"price":180.2,"value":199661.6,"is_10b5_1":true}
- Days between
- -13
- Opposite side
- No
- 49Well timedJun 17, 2025
Rep. Lisa C. McClain's TER buy is up 24% after 30 days
Details
- Politician
- Lisa C. McClain
- Ticker
- TER
- Asset
- Teradyne, Inc. (TER)
- Tx type
- buy
- Tx date
- Jun 17, 2025
- Filing date
- Aug 13, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 57
- Is whale
- No
- Entry date
- Jun 17, 2025
- Entry close
- 86.43
- Exit date
- Jul 31, 2025
- Exit close
- 107.43
- Forward return
- +24.3%
- Sign adjusted return
- +24.3%
- N trading days
- 30
- 55Well timedMar 3, 2025
Rep. Julie Johnson's TER sale avoided a 30% drop over 30 days
Details
- Politician
- Julie Johnson
- Ticker
- TER
- Asset
- Teradyne, Inc. (TER)
- Tx type
- sell
- Tx date
- Mar 3, 2025
- Filing date
- Apr 14, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Amount mid
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 42
- Is whale
- No
- Entry date
- Mar 3, 2025
- Entry close
- 105.78
- Exit date
- Apr 14, 2025
- Exit close
- 73.86
- Forward return
- -30.2%
- Sign adjusted return
- +30.2%
- N trading days
- 30