ONTO(ONTO)
ONTO
NYSE • Last print unknown ago
$281.11—Stale · unknown old
| Date | Insider | Title | Type | Price | Shares | Value | Owned After |
|---|---|---|---|---|---|---|---|
| Sep 2, 26 | Chen Shirley | President | Sale | $254.55 | 1.52K | $385.90K | 14.00K |
| Sep 2, 26 | ROBERTS BRIAN K | CFO | Sale | $254.55 | 3.24K | $824.49K | 21.03K |
| Aug 21, 26 | Lynch Susan D | CTO | Sale | $302.30 | 1.00K | $302.30K | 2.68K |
| May 20, 26 | Su May | CTO | Purchase | -- | 761 | -- | 7.98K |
| May 20, 26 | SEAMS CHRISTOPHER A | CTO | Purchase | -- | 761 | -- | 38.51K |
| May 20, 26 | SCHWARTZ STEPHEN S | CTO | Purchase | -- | 761 | -- | 3.54K |
| May 20, 26 | MILLER DAVID BRIAN | CTO | Purchase | -- | 761 | -- | 12.69K |
| May 20, 26 | Lynch Susan D | CTO | Purchase | -- | 761 | -- | 3.68K |
| May 20, 26 | Kelley Stephen Douglas | CTO | Purchase | -- | 761 | -- | 6.38K |
| May 15, 26 | YALDAEI RAMIL | COO | Sale | $271.77 | 218 | $59.25K | 18.22K |
| May 15, 26 | YALDAEI RAMIL | COO | Sale | $271.77 | 625 | $169.86K | 17.59K |
| May 15, 26 | OH Yoon Ah | Officer | Sale | $271.77 | 530 | $144.04K | 21.11K |
| Mar 2, 26 | ROBERTS BRIAN K | CFO | Purchase | -- | 3.10K | -- | 24.27K |
| Mar 2, 26 | ROBERTS BRIAN K | CFO | Purchase | -- | 1.55K | -- | 1.55K |
| Mar 2, 26 | Dolev Ido | Officer | Purchase | -- | 3.44K | -- | 27.36K |
| Mar 3, 26 | Dolev Ido | Officer | Sale | $207.50 | 819 | $169.94K | 26.54K |
| Mar 2, 26 | Dolev Ido | Officer | Purchase | -- | 1.72K | -- | 1.72K |
| Mar 2, 26 | YALDAEI RAMIL | COO | Purchase | -- | 7.68K | -- | 19.05K |
| Mar 3, 26 | YALDAEI RAMIL | COO | Sale | $207.50 | 615 | $127.61K | 18.44K |
| Mar 2, 26 | YALDAEI RAMIL | COO | Purchase | -- | 1.55K | -- | 1.55K |
| Mar 2, 26 | Plisinski Michael P | CEO | Purchase | -- | 14.48K | -- | 182.98K |
| Mar 3, 26 | Plisinski Michael P | CEO | Sale | $207.50 | 3.74K | $776.47K | 179.24K |
| Mar 2, 26 | Plisinski Michael P | CEO | Purchase | -- | 7.24K | -- | 7.24K |
| Mar 2, 26 | OH Yoon Ah | Officer | Purchase | -- | 2.41K | -- | 22.06K |
| Mar 3, 26 | OH Yoon Ah | Officer | Sale | $207.50 | 417 | $86.53K | 21.64K |
| Mar 2, 26 | OH Yoon Ah | Officer | Purchase | -- | 1.20K | -- | 1.20K |
| Mar 2, 26 | Chen Shirley | Officer | Purchase | -- | 2.52K | -- | 15.52K |
| Mar 2, 26 | Chen Shirley | Officer | Purchase | -- | 1.26K | -- | 1.26K |
| Mar 1, 26 | Plisinski Michael P | CEO | Purchase | -- | 4.60K | -- | 172.65K |
| Mar 1, 26 | Plisinski Michael P | CEO | Sale | $215.89 | 2.22K | $479.71K | 170.43K |
| Mar 1, 26 | Plisinski Michael P | CEO | Sale | $215.89 | 1.93K | $415.59K | 168.50K |
| Mar 1, 26 | Plisinski Michael P | CEO | Sale | -- | 5.97K | -- | -- |
| Mar 1, 26 | OH Yoon Ah | Officer | Purchase | -- | 724 | -- | 20.22K |
| Mar 1, 26 | OH Yoon Ah | Officer | Sale | $215.89 | 307 | $66.28K | 19.92K |
| Mar 1, 26 | OH Yoon Ah | Officer | Sale | $215.89 | 267 | $57.64K | 19.65K |
| Mar 1, 26 | OH Yoon Ah | Officer | Sale | -- | 941 | -- | -- |
| Feb 14, 26 | Plisinski Michael P | CEO | Purchase | -- | 18.45K | -- | 180.61K |
| Feb 14, 26 | Plisinski Michael P | CEO | Sale | $217.23 | 8.92K | $1.94M | 171.69K |
| Feb 14, 26 | Plisinski Michael P | CEO | Sale | $217.23 | 3.63K | $788.98K | 168.06K |
| Feb 14, 26 | Plisinski Michael P | CEO | Sale | -- | 11.82K | -- | -- |
| Feb 14, 26 | OH Yoon Ah | Officer | Purchase | -- | 3.08K | -- | 21.09K |
| Feb 14, 26 | OH Yoon Ah | Officer | Sale | $217.23 | 1.09K | $237.65K | 20.00K |
| Feb 14, 26 | OH Yoon Ah | Officer | Sale | $217.23 | 501 | $108.83K | 19.50K |
| Feb 14, 26 | OH Yoon Ah | Officer | Sale | -- | 1.98K | -- | -- |
| Dec 24, 25 | Plisinski Michael P | CEO | Sale | -- | 25.00K | -- | 162.16K |
| Dec 2, 25 | Dolev Ido | Officer | Sale | $154.01 | 3.18K | $490.21K | 23.91K |
| Oct 3, 25 | YALDAEI RAMIL | COO | Sale | $143.71 | 594 | $85.36K | 11.34K |
| Sep 2, 25 | ROBERTS BRIAN K | CFO | Purchase | -- | 21.18K | -- | 21.18K |
| Sep 2, 25 | Chen Shirley | Officer | Purchase | -- | 12.99K | -- | 12.99K |
| Jun 16, 25 | Chen Shirley | Officer | Sale | -- | -- | -- | -- |
| Jun 16, 25 | ROBERTS BRIAN K | Officer | Sale | -- | -- | -- | -- |
| Jun 12, 25 | Slicer Mark | Officer | Sale | -- | -- | -- | -- |
| Jun 2, 25 | Dolev Ido | Officer | Purchase | -- | 5.39K | -- | 26.95K |
| Jun 2, 25 | Dolev Ido | Officer | Purchase | -- | 21.56K | -- | 21.56K |
| Jun 2, 25 | Dolev Ido | Officer | Purchase | -- | 2.69K | -- | 2.69K |
| May 21, 25 | TSINGOS CHRISTINE A | CTO | Sale | -- | -- | -- | -- |
| May 21, 25 | BERLINGHIERI LEO | CTO | Sale | -- | -- | -- | -- |
| May 21, 25 | Su May | CTO | Purchase | -- | 2.11K | -- | 7.22K |
| May 21, 25 | SEAMS CHRISTOPHER A | CTO | Purchase | -- | 2.11K | -- | 37.75K |
| May 21, 25 | SCHWARTZ STEPHEN S | CTO | Purchase | -- | 2.11K | -- | 2.77K |
| May 21, 25 | MILLER DAVID BRIAN | CTO | Purchase | -- | 2.11K | -- | 11.93K |
| May 21, 25 | Lynch Susan D | CTO | Purchase | -- | 2.11K | -- | 2.92K |
| May 21, 25 | Kelley Stephen Douglas | CTO | Purchase | -- | 2.11K | -- | 5.62K |
| May 17, 25 | Slicer Mark | CFO | Sale | $99.40 | 2.07K | $205.36K | 13.64K |
| May 15, 25 | YALDAEI RAMIL | COO | Sale | $98.04 | 217 | $21.27K | 12.40K |
| May 15, 25 | YALDAEI RAMIL | COO | Sale | $98.04 | 609 | $59.71K | 11.79K |
| May 15, 25 | OH Yoon Ah | Officer | Sale | $98.04 | 603 | $59.12K | 18.01K |
| Apr 9, 25 | Vedula Srinivas | Officer | Sale | -- | -- | -- | -- |
| Mar 3, 25 | YALDAEI RAMIL | COO | Purchase | -- | 3.77K | -- | 12.62K |
| Mar 3, 25 | YALDAEI RAMIL | COO | Purchase | -- | 1.88K | -- | 1.88K |
| Mar 3, 25 | Vedula Srinivas | Officer | Purchase | -- | 2.57K | -- | 18.73K |
| Mar 3, 25 | Vedula Srinivas | Officer | Purchase | -- | 1.29K | -- | 1.29K |
| Mar 3, 25 | Vedula Srinivas | Officer | Purchase | -- | 1.29K | -- | 1.29K |
| Mar 3, 25 | Slicer Mark | CFO | Purchase | -- | 2.94K | -- | 15.71K |
| Mar 3, 25 | Slicer Mark | CFO | Purchase | -- | 1.47K | -- | 1.47K |
| Mar 3, 25 | Slicer Mark | CFO | Purchase | -- | 1.47K | -- | 1.47K |
| Mar 3, 25 | Plisinski Michael P | CEO | Purchase | -- | 23.21K | -- | 187.16K |
| Mar 3, 25 | Plisinski Michael P | CEO | Purchase | -- | 11.61K | -- | 11.61K |
| Mar 3, 25 | OH Yoon Ah | Officer | Purchase | -- | 2.94K | -- | 18.61K |
| Mar 3, 25 | OH Yoon Ah | Officer | Purchase | -- | 1.47K | -- | 1.47K |
| Mar 3, 25 | OH Yoon Ah | Officer | Purchase | -- | 1.47K | -- | 1.47K |
| Mar 1, 25 | YALDAEI RAMIL | COO | Sale | $145.66 | 305 | $44.43K | 8.85K |
| Mar 1, 25 | Vedula Srinivas | Officer | Sale | $145.66 | 199 | $28.99K | 16.16K |
| Mar 1, 25 | Slicer Mark | CFO | Sale | $145.66 | 336 | $48.94K | 12.77K |
| Mar 1, 25 | Plisinski Michael P | CEO | Sale | $145.66 | 1.93K | $280.40K | 163.95K |
| Mar 1, 25 | OH Yoon Ah | Officer | Sale | $145.66 | 304 | $44.28K | 15.67K |
| Feb 14, 25 | OH Yoon Ah | Officer | Purchase | -- | 3.96K | -- | 18.30K |
| Feb 14, 25 | OH Yoon Ah | Officer | Sale | $176.55 | 1.83K | $323.09K | 16.47K |
| Feb 14, 25 | OH Yoon Ah | Officer | Sale | $176.55 | 493 | $87.04K | 15.98K |
| Feb 14, 25 | OH Yoon Ah | Officer | Sale | -- | 1.98K | -- | -- |
| Feb 14, 25 | Plisinski Michael P | CEO | Purchase | -- | 23.65K | -- | 181.12K |
| Feb 14, 25 | Plisinski Michael P | CEO | Sale | $176.55 | 11.44K | $2.02M | 169.69K |
| Feb 14, 25 | Plisinski Michael P | CEO | Sale | $176.55 | 3.81K | $673.01K | 165.87K |
| Feb 14, 25 | Plisinski Michael P | CEO | Sale | -- | 11.82K | -- | -- |
| Feb 14, 25 | Slicer Mark | CFO | Purchase | -- | 4.56K | -- | 15.50K |
| Feb 14, 25 | Slicer Mark | CFO | Sale | $176.55 | 1.78K | $313.55K | 13.72K |
| Feb 14, 25 | Slicer Mark | CFO | Sale | $176.55 | 620 | $109.46K | 13.10K |
| Feb 14, 25 | Slicer Mark | CFO | Sale | -- | 2.28K | -- | -- |
| Feb 14, 25 | Vedula Srinivas | Officer | Purchase | -- | 2.74K | -- | 18.21K |
| Feb 14, 25 | Vedula Srinivas | Officer | Sale | $176.55 | 1.39K | $245.58K | 16.82K |
| Feb 14, 25 | Vedula Srinivas | Officer | Sale | $176.55 | 464 | $81.92K | 16.36K |
| Feb 14, 25 | Vedula Srinivas | Officer | Sale | -- | 1.37K | -- | -- |
| Feb 13, 25 | Vedula Srinivas | Officer | Sale | $169.58 | 238 | $40.36K | 15.47K |
| Feb 10, 25 | Vedula Srinivas | Officer | Purchase | -- | 1.63K | -- | 15.71K |
| Feb 10, 25 | Vedula Srinivas | Officer | Sale | $183.28 | 306 | $56.08K | 14.92K |
| Feb 10, 25 | Vedula Srinivas | Officer | Sale | $183.28 | 839 | $153.77K | 14.08K |
| Feb 10, 25 | Vedula Srinivas | Officer | Sale | -- | 816 | -- | -- |
| Feb 10, 25 | OH Yoon Ah | Officer | Purchase | -- | 2.72K | -- | 14.34K |
| Feb 10, 25 | OH Yoon Ah | Officer | Sale | $183.28 | 375 | $68.73K | 12.64K |
| Feb 10, 25 | OH Yoon Ah | Officer | Sale | $183.28 | 1.02K | $186.21K | 11.62K |
| Feb 10, 25 | OH Yoon Ah | Officer | Sale | -- | 1.36K | -- | -- |
| Feb 10, 25 | Plisinski Michael P | CEO | Purchase | -- | 19.05K | -- | 166.68K |
| Feb 10, 25 | Plisinski Michael P | CEO | Sale | $183.28 | 9.21K | $1.69M | 157.47K |
| Feb 10, 25 | Plisinski Michael P | CEO | Sale | $183.28 | 2.86K | $524.00K | 147.63K |
| Feb 10, 25 | Plisinski Michael P | CEO | Sale | -- | 9.52K | -- | -- |
| Jan 21, 25 | Plisinski Michael P | CEO | Sale | $219.19 | 35.00K | $7.67M | 150.49K |
| Jan 16, 25 | Plisinski Michael P | CEO | Sale | $211.24 | 29.90K | $6.32M | 185.59K |
| Jan 16, 25 | Plisinski Michael P | CEO | Sale | $212.11 | 100 | $21.21K | 185.49K |
| Jan 15, 25 | Vedula Srinivas | Officer | Sale | $205.00 | 827 | $169.53K | 15.22K |
| Jan 14, 25 | Plisinski Michael P | CEO | Sale | $200.09 | 18.27K | $3.66M | 217.22K |
| Jan 14, 25 | Plisinski Michael P | CEO | Sale | $201.26 | 1.73K | $348.58K | 215.49K |
| Dec 1, 24 | Fiordalice Robert | Officer | Sale | -- | -- | -- | -- |
| Dec 1, 24 | BROOKS D MAYSON | Officer | Sale | -- | -- | -- | -- |
| Dec 1, 24 | Dolev Ido | Officer | Sale | -- | -- | -- | -- |
| Nov 15, 24 | Slicer Mark | CFO | Sale | $160.41 | 1.10K | $176.45K | 10.93K |
| Oct 25, 24 | OH Yoon Ah | Officer | Sale | $204.39 | 1.30K | $264.89K | 13.01K |
| Oct 3, 24 | YALDAEI RAMIL | COO | Sale | $206.55 | 592 | $122.28K | 9.15K |
| Sep 1, 24 | BROOKS D MAYSON | President | Sale | $213.22 | 224 | $47.76K | 3.02K |
| Aug 30, 24 | Vedula Srinivas | Officer | Sale | $213.22 | 280 | $59.70K | 17.32K |
| Sep 3, 24 | Vedula Srinivas | Officer | Sale | $207.24 | 1.27K | $264.23K | 16.05K |
| Aug 20, 24 | SCHWARTZ STEPHEN S | CTO | Purchase | -- | 661 | -- | 661 |
| Jul 16, 24 | SCHWARTZ STEPHEN S | CTO | Sale | -- | -- | -- | -- |
| Jun 10, 24 | Vedula Srinivas | Officer | Sale | $213.40 | 1.49K | $317.11K | 17.43K |
| Jun 6, 24 | Slicer Mark | CFO | Sale | $221.21 | 519 | $114.81K | 12.55K |
| Jun 7, 24 | Slicer Mark | CFO | Sale | $217.17 | 519 | $112.71K | 12.03K |
| May 22, 24 | ROGGE KAREN M | CTO | Sale | -- | -- | -- | -- |
| May 22, 24 | TSINGOS CHRISTINE A | CTO | Purchase | -- | 809 | -- | 42.92K |
| May 22, 24 | Su May | CTO | Purchase | -- | 809 | -- | 5.11K |
| May 22, 24 | SEAMS CHRISTOPHER A | CTO | Purchase | -- | 809 | -- | 35.64K |
| May 22, 24 | MILLER DAVID BRIAN | CTO | Purchase | -- | 809 | -- | 9.82K |
| May 22, 24 | Lynch Susan D | CTO | Purchase | -- | 809 | -- | 809 |
| May 22, 24 | Kelley Stephen Douglas | CTO | Purchase | -- | 809 | -- | 3.51K |
| May 22, 24 | BERLINGHIERI LEO | CTO | Purchase | -- | 809 | -- | 20.21K |
| May 17, 24 | Slicer Mark | CFO | Sale | $223.50 | 1.63K | $364.98K | 13.07K |
| May 15, 24 | YALDAEI RAMIL | COO | Sale | $233.63 | 194 | $45.32K | 10.12K |
| May 15, 24 | YALDAEI RAMIL | COO | Sale | $233.63 | 545 | $127.33K | 9.58K |
| May 15, 24 | OH Yoon Ah | Officer | Sale | $233.63 | 603 | $140.88K | 14.31K |
| Apr 1, 24 | Vedula Srinivas | Officer | Sale | $185.30 | 302 | $55.96K | 18.92K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $172.83 | 4.34K | $750.77K | 271.15K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $173.96 | 6.27K | $1.09M | 264.88K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $174.79 | 2.06K | $360.07K | 262.82K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $176.00 | 22.60K | $3.98M | 240.22K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $177.04 | 1.82K | $321.50K | 238.41K |
| Mar 20, 24 | Plisinski Michael P | CEO | Sale | $178.16 | 2.91K | $519.16K | 235.49K |
| Mar 15, 24 | Lynch Susan D | CTO | Sale | -- | -- | -- | -- |
| Mar 15, 24 | OH Yoon Ah | Officer | Sale | $173.96 | 2.69K | $467.08K | 16.60K |
| Mar 18, 24 | OH Yoon Ah | Officer | Sale | $180.00 | 1.69K | $303.30K | 14.91K |
| Mar 1, 24 | YALDAEI RAMIL | COO | Purchase | -- | 1.69K | -- | 10.31K |
| Mar 1, 24 | YALDAEI RAMIL | COO | Purchase | -- | 844 | -- | 844 |
| Mar 1, 24 | Vedula Srinivas | Officer | Purchase | -- | 1.17K | -- | 19.22K |
| Mar 1, 24 | Vedula Srinivas | Officer | Purchase | -- | 584 | -- | 584 |
| Mar 1, 24 | Slicer Mark | CFO | Purchase | -- | 2.08K | -- | 14.70K |
| Mar 1, 24 | Slicer Mark | CFO | Purchase | -- | 1.04K | -- | 1.04K |
| Mar 1, 24 | Slicer Mark | CFO | Purchase | -- | 1.04K | -- | 1.04K |
| Mar 1, 24 | Plisinski Michael P | CEO | Purchase | -- | 11.94K | -- | 275.49K |
| Mar 1, 24 | Plisinski Michael P | CEO | Purchase | -- | 5.97K | -- | 5.97K |
| Mar 1, 24 | Fiordalice Robert | Officer | Purchase | -- | 779 | -- | 8.76K |
| Mar 1, 24 | Fiordalice Robert | Officer | Purchase | -- | 390 | -- | 390 |
| Mar 1, 24 | Fiordalice Robert | Officer | Purchase | -- | 389 | -- | 389 |
| Mar 1, 24 | OH Yoon Ah | Officer | Purchase | -- | 1.88K | -- | 19.28K |
| Mar 1, 24 | OH Yoon Ah | Officer | Purchase | -- | 941 | -- | 941 |
| Mar 1, 24 | BROOKS D MAYSON | President | Purchase | -- | 883 | -- | 3.08K |
| Mar 1, 24 | BROOKS D MAYSON | President | Purchase | -- | 442 | -- | 442 |
| Mar 1, 24 | BROOKS D MAYSON | President | Purchase | -- | 441 | -- | 441 |
| Feb 14, 24 | Vedula Srinivas | Officer | Sale | $173.08 | 463 | $80.14K | 18.05K |
| Feb 14, 24 | Slicer Mark | CFO | Sale | $173.08 | 484 | $83.77K | 12.63K |
| Feb 14, 24 | Plisinski Michael P | CEO | Sale | $173.08 | 3.81K | $659.78K | 263.55K |
| Feb 14, 24 | OH Yoon Ah | Officer | Sale | $173.08 | 493 | $85.33K | 17.40K |
| Feb 14, 24 | Fiordalice Robert | President | Sale | $173.08 | 238 | $41.19K | 7.98K |
| Feb 13, 24 | MILLER DAVID BRIAN | CTO | Sale | $170.49 | 2.80K | $477.37K | 9.01K |
| Feb 10, 24 | Vedula Srinivas | Officer | Purchase | -- | 1.63K | -- | 18.52K |
| Feb 10, 24 | Vedula Srinivas | Officer | Sale | $180.01 | 1.14K | $205.57K | 16.88K |
| Feb 10, 24 | Vedula Srinivas | Officer | Sale | -- | 817 | -- | -- |
| Feb 10, 24 | Plisinski Michael P | CEO | Purchase | -- | 19.05K | -- | 276.57K |
| Feb 8, 24 | Plisinski Michael P | CEO | Purchase | -- | 24.83K | -- | 272.60K |
| Feb 10, 24 | Plisinski Michael P | CEO | Sale | $180.01 | 9.21K | $1.66M | 267.36K |
| Feb 8, 24 | Plisinski Michael P | CEO | Sale | $164.76 | 12.00K | $1.98M | 260.59K |
| Feb 10, 24 | Plisinski Michael P | CEO | Sale | $180.01 | 3.07K | $552.81K | 257.52K |
| Feb 8, 24 | Plisinski Michael P | CEO | Sale | $164.76 | 4.03K | $664.31K | 247.76K |
| Feb 10, 24 | Plisinski Michael P | CEO | Sale | -- | 9.53K | -- | -- |
| Feb 10, 24 | OH Yoon Ah | Officer | Purchase | -- | 2.72K | -- | 17.89K |
| Feb 10, 24 | OH Yoon Ah | Officer | Sale | $180.01 | 1.40K | $251.11K | 15.17K |
| Feb 10, 24 | OH Yoon Ah | Officer | Sale | -- | 1.36K | -- | -- |
| Feb 10, 24 | Fiordalice Robert | President | Purchase | -- | 1.74K | -- | 8.98K |
| Feb 10, 24 | Fiordalice Robert | President | Sale | $180.01 | 755 | $135.91K | 8.22K |
| Feb 8, 24 | Fiordalice Robert | President | Purchase | -- | 1.41K | -- | 7.24K |
| Feb 8, 24 | Fiordalice Robert | President | Sale | $164.76 | 648 | $106.76K | 5.83K |
| Feb 10, 24 | Fiordalice Robert | President | Sale | -- | 871 | -- | -- |
| Oct 25, 23 | OH Yoon Ah | Officer | Sale | $111.16 | 795 | $88.37K | 16.57K |
| Oct 3, 23 | YALDAEI RAMIL | COO | Sale | $125.39 | 421 | $52.79K | 8.55K |