Mercedes Johnson, a director at Teradyne Inc. ($TER), sold shares on the open market nine times over the past year, totaling about $1.15 million. Her most recent sale occurred on March 5, 2026. These transactions rank her 4,589th among 11,678 insiders by sale value, below the average of $8.6 million across about 6.4 transactions per insider. She made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | A | Comm Stock - $.16-2/3 value | 747 | $0.00 | 4,948.0000 | 488,204,157 | 17.78% | 0.00% |
| March 5, 2026 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $299.20 | 8,864.0000 | 159,719,000 | 6.59% | 0.00% |
| Feb. 5, 2026 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $266.98 | 9,489.0000 | 159,719,000 | 6.18% | 0.00% |
| Jan. 5, 2026 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $211.85 | 10,114.0000 | 159,719,000 | 5.82% | 0.00% |
| Dec. 5, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $200.00 | 10,739.0000 | 160,409,000 | 5.50% | 0.00% |
| Nov. 5, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $177.05 | 11,364.0000 | 160,409,000 | 5.21% | 0.00% |
| Oct. 6, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $147.90 | 11,989.0000 | 160,409,000 | 4.95% | 0.00% |
| Sept. 5, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $120.06 | 12,614.0000 | 163,314,000 | 4.72% | 0.00% |
| Aug. 5, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $106.00 | 13,239.0000 | 163,314,000 | 4.51% | 0.00% |
| July 30, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 1875 | $105.73 | 13,864.0000 | 163,314,000 | 11.91% | 0.00% |
| May 9, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | A | Common Stock | 2971 | $0.00 | 15,739.0000 | 163,314,000 | 23.27% | 0.00% |
| April 10, 2025 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | A | Common Stock | 491 | $0.00 | 2,390.0000 | 0 | 25.86% | 0.00% |
| March 12, 2025 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | A | Comm Stock - $.16-2/3 value | 1160 | $0.00 | 4,201.0000 | 495,976,000 | 38.15% | 0.00% |
| March 5, 2025 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | S | Comm Stock - $.16-2/3 value | 6000 | $227.12 | 1,836.0000 | 495,976,000 | 76.57% | 0.00% |
| March 3, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $110.96 | 12,768.0000 | 163,314,000 | 4.67% | 0.00% |
| Feb. 3, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $112.58 | 13,393.0000 | 163,314,000 | 4.46% | 0.00% |
| Jan. 2, 2025 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $126.76 | 14,018.0000 | 163,314,000 | 4.27% | 0.00% |
| Dec. 2, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $110.04 | 14,643.0000 | 164,253,000 | 4.09% | 0.00% |
| Nov. 7, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $111.42 | 15,268.0000 | 164,253,000 | 3.93% | 0.00% |
| Oct. 1, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $132.80 | 15,893.0000 | 164,253,000 | 3.78% | 0.00% |
| Sept. 3, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $133.49 | 16,518.0000 | 164,304,000 | 3.65% | 0.00% |
| Aug. 1, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $128.77 | 17,143.0000 | 164,304,000 | 3.52% | 0.00% |
| July 1, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $148.00 | 17,768.0000 | 164,304,000 | 3.40% | 0.00% |
| June 3, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $143.84 | 18,393.0000 | 164,304,000 | 3.29% | 0.00% |
| May 28, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | S | Common Stock | 5500 | $581.38 | 1,899.0000 | 0 | 74.33% | 0.00% |
| May 9, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | A | Common Stock | 1876 | $0.00 | 19,018.0000 | 164,304,000 | 10.94% | 0.00% |
| May 6, 2024 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 625 | $121.20 | 17,142.0000 | 164,304,000 | 3.52% | 0.00% |
| April 10, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | A | Common Stock | 356 | $0.00 | 7,399.0000 | 0 | 5.05% | 0.00% |
| March 13, 2024 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | A | Restricted Stock Unit (RSU) | 1205 | $0.00 | 1,205.0000 | 496,262,000 | 9999.99% | 0.00% |
| March 8, 2024 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | M | Comm Stock - $.16-2/3 value | 1228 | $0.00 | 7,836.0000 | 496,262,000 | 18.58% | 0.00% |
| March 8, 2024 | ANALOG DEVICES INC | $ADI | JOHNSON MERCEDES | Director | M | Restricted Stock Unit (RSU) | 1228 | $0.00 | 0.0000 | 496,262,000 | 100.00% | 0.00% |
| Jan. 2, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | M | Common Stock | 4000 | $65.84 | 11,043.0000 | 0 | 56.79% | 0.00% |
| Jan. 3, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | M | Non-Qualified Stock Option (right to buy) | 3500 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Jan. 2, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | M | Non-Qualified Stock Option (right to buy) | 4000 | $0.00 | 3,500.0000 | 0 | 53.33% | 0.00% |
| Jan. 3, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | S | Common Stock | 3500 | $494.70 | 7,043.0000 | 0 | 33.20% | 0.00% |
| Jan. 3, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | M | Common Stock | 3500 | $65.84 | 10,543.0000 | 0 | 49.69% | 0.00% |
| Jan. 2, 2024 | SYNOPSYS INC | $SNPS | JOHNSON MERCEDES | Director | S | Common Stock | 4000 | $506.15 | 7,043.0000 | 0 | 36.22% | 0.00% |
| July 17, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $115.00 | 17,767.0000 | 169,734,000 | 4.05% | 0.00% |
| June 15, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $108.72 | 18,517.0000 | 169,734,000 | 3.89% | 0.00% |
| May 26, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $100.00 | 19,267.0000 | 169,734,000 | 3.75% | 0.00% |
| May 12, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | A | Common Stock | 2530 | $0.00 | 20,017.0000 | 169,734,000 | 14.47% | 0.00% |
| April 20, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $100.00 | 17,487.0000 | 169,734,000 | 4.11% | 0.00% |
| March 15, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $103.23 | 18,237.0000 | 169,734,000 | 3.95% | 0.00% |
| Feb. 15, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $106.43 | 18,987.0000 | 169,734,000 | 3.80% | 0.00% |
| Jan. 23, 2023 | TERADYNE, INC | $TER | JOHNSON MERCEDES | Director | S | Common Stock | 750 | $100.00 | 19,737.0000 | 169,734,000 | 3.66% | 0.00% |