X0609 4 2026-03-16 0001036262 INTEST CORP INTT 0001821315 Grant Richard N. Jr. C/O INTEST CORP 804 EAST GATE DR, SUITE 200 MT. LAUREL NJ 08054 1 1 0 0 President & CEO 1 Common Stock 2026-03-16 4 A 0 13822 0 A 200544 D Common Stock 2026-03-16 4 A 0 13822 0 A 214366 D Common Stock 2026-03-18 4 S 0 1636 14.279 D 212730 D Employee Stock Option (right to buy) 14.47 2026-03-16 4 A 0 23365 0 A 2036-03-15 Common Stock 23365 23365 D Employee Stock Option (right to buy) 7.74 2035-03-16 Common Stock 2327 2327 D Employee Stock Option (right to buy) 7.74 2035-03-16 Common Stock 43384 43384 D Employee Stock Option (right to buy) 11.33 2034-03-05 Common Stock 30536 30536 D Employee Stock Option (right to buy) 16.06 2033-03-07 Common Stock 16988 16988 D Employee Stock Option (right to buy) 9.76 2032-03-08 Common Stock 25692 25692 D Employee Stock Option (right to buy) 10.62 2031-03-09 Common Stock 112000 112000 D These restricted shares were granted pursuant to the InTest Corporation 2023 Stock Incentive Plan (the "Plan") in a transaction exempt under Rule 16b-3 and will vest in four equal annual installments commencing on March 16, 2027. These performance-based restricted shares were granted pursuant to the Plan in a transaction exempt under Rule 16b-3 and will vest in March 2029 dependent upon certain performance criteria. The amount shown reflects the number of shares that will vest at target performance. The maximum number of shares that may vest pursuant to the performance criteria is 20,733. Shares sold to satisfy tax withholding obligations in connection with the vesting of restricted stock. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 8, 2023. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $14.25 to $14.425, inclusive. The reporting person undertakes to provide InTest Corporation, any security holder of InTest Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. This option was granted pursuant to the Plan in a transaction exempt under Rule 16b-3 and will vest in four equal annual installments commencing on March 16, 2027. This option vests in four equal annual installments commencing on March 17, 2026. This option vests in four equal annual installments commencing on March 6, 2025. This option vests in four equal annual installments commencing on March 8, 2024. This option is fully vested as of the date of this report. /s/ Duncan Gilmour, Attorney-in-Fact for Richard N. Grant, Jr. 2026-03-18