S SentinelOne, Inc.
$19.75
SentinelOne, Inc. (S) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
Insider signal
In line
Selling ran in line with S's own trailing one-year pace, with 53% of sale value under a prearranged plan.
Cluster activity
0 buyers in the last 30 days
0 buyers in the last 90 days
6 sellers in the last 90 days
Insiders buying
1
1 transaction
Insiders selling
7
56 transactions
Purchases
$595.6K
40,000 shares
Sales
$26.4M
1,645,252 shares
Net activity
-$25.8M
purchases less sales
How much of that selling was preplanned? 53% planned / 47% discretionary
10b5-1 plan sales
$14.1M
16 transactions · 882,681 shares
Discretionary sales
$12.3M
40 transactions · 762,571 shares
Largest single sale: $3.5M.
Where they traded
Buy
Sell
Dot area is proportional to transaction value.
Last open-market purchase: December 16, 2025 , by PEEK MARK S .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| TOMASELLO ROBIN | Chief Accounting Officer | Sell 10b5-1 | 13,311 | $19.95 | $265.5K | 405,112 −3.2% of holding | |
| Weingarten Tomer | President, CEO | Sell | 38,759 | $19.79 | $767.0K | 1,801,827 −2.1% of holding | |
| Parekh Sonalee Elizabeth | Chief Financial Officer | Sell 10b5-1 | 21,664 | $19.44 | $421.2K | 942,617 −2.2% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 14,205 | $19.79 | $281.1K | 418,423 −3.3% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 8,312 | $19.79 | $164.5K | 948,046 −0.9% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell 10b5-1 | 7,235 | $19.44 | $140.6K | 432,628 −1.6% of holding | |
| Weingarten Tomer | President, CEO | Sell | 53,811 | $20.08 | $1.1M | 1,840,586 −2.8% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 26,374 | $20.08 | $529.6K | 956,358 −2.7% of holding | |
| PADGETT BARRY L. | President and COO | Sell | 9,778 | $20.09 | $196.5K | 977,430 −1% of holding | |
| Pinczuk Ana G. | President Product & Technology | Sell | 6,230 | $20.09 | $125.1K | 737,716 −0.8% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 5,467 | $20.08 | $109.8K | 439,863 −1.2% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,941 | $18.75 | $1.1M | 1,894,397 −3% of holding | |
| Parekh Sonalee Elizabeth | Chief Financial Officer | Sell | 12,987 | $18.25 | $237.1K | 964,281 −1.3% of holding | |
| Parekh Sonalee Elizabeth | Chief Financial Officer | Sell | 33,823 | $17.89 | $605.1K | 977,268 −3.3% of holding | |
| Pinczuk Ana G. | President Product & Technology | Sell | 16,042 | $17.89 | $287.0K | 743,946 −2.1% of holding | |
| PADGETT BARRY L. | President and COO | Sell | 15,460 | $17.89 | $276.6K | 987,208 −1.5% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,941 | $17.71 | $1.0M | 1,894,397 −3% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,941 | $15.21 | $881.3K | 1,894,397 −3% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,296 | $14.60 | $836.3K | 1,894,397 −2.9% of holding | |
| Weingarten Tomer | President, CEO | Sell | 39,118 | $15.73 | $615.2K | 1,951,693 −2% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 11,905 | $15.70 | $186.9K | 445,330 −2.6% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 8,401 | $15.70 | $131.9K | 982,732 −0.8% of holding | |
| Weingarten Tomer | President, CEO | Sell | 21,960 | $15.65 | $343.6K | 1,990,811 −1.1% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 4,550 | $15.65 | $71.2K | 991,133 −0.5% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 2,459 | $15.65 | $38.5K | 457,235 −0.5% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 231,664 | $15.32 | $3.5M | 2,012,771 −10.3% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 100 | $15.00 | $1.5K | 2,012,771 −0% of holding | |
| Pinczuk Ana G. | President Product & Technology | Sell | 16,042 | $13.41 | $215.1K | 587,608 −2.7% of holding | |
| PADGETT BARRY L. | President and COO | Sell | 15,460 | $13.41 | $207.3K | 628,190 −2.4% of holding | |
| Weingarten Tomer | President, CEO | Sell | 72,523 | $13.37 | $969.6K | 1,076,575 −6.3% of holding | |
| Pinczuk Ana G. | President Product & Technology | Sell | 32,396 | $13.37 | $433.1K | 603,650 −5.1% of holding | |
| PADGETT BARRY L. | Interim CFO | Sell | 32,221 | $13.37 | $430.8K | 643,650 −4.8% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 5,578 | $13.37 | $74.6K | 574,395 −1% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 1,496 | $13.37 | $20.0K | 403,523 −0.4% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 38,864 | $14.47 | $562.4K | 1,007,277 −3.7% of holding | |
| Weingarten Tomer | President, CEO | Sell | 36,932 | $13.81 | $510.1K | 1,046,141 −3.4% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 10,163 | $13.81 | $140.4K | 400,871 −2.5% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 5,178 | $13.81 | $71.5K | 557,184 −0.9% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 39,472 | $13.48 | $532.3K | 1,083,073 −3.5% of holding | |
| Weingarten Tomer | President, CEO | Sell | 23,063 | $13.15 | $303.3K | 1,122,545 −2% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 4,237 | $13.15 | $55.7K | 562,362 −0.7% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 2,975 | $13.15 | $39.1K | 411,034 −0.7% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 51,595 | $15.12 | $780.1K | 1,145,608 −4.3% of holding | |
| Pinczuk Ana G. | President Product & Technology | Sell | 11,900 | $14.82 | $176.4K | 560,589 −2.1% of holding | |
| Larson Barbara A | Chief Financial Officer | Sell | 11,173 | $14.82 | $165.6K | 539,372 −2% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 6,346 | $15.04 | $95.4K | 1,145,608 −0.6% of holding | |
| PEEK MARK S | Director | Buy | 40,000 | $14.89 | $595.6K | 120,000 | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 125,429 | $15.09 | $1.9M | 1,093,108 −10.3% of holding | |
| Weingarten Tomer | President, CEO | Sell | 38,684 | $14.58 | $564.0K | 1,213,096 −3.1% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 8,509 | $14.58 | $124.1K | 285,551 −2.9% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 8,311 | $14.58 | $121.2K | 565,225 −1.4% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,941 | $16.41 | $951.0K | 1,283,939 −4.3% of holding | |
| Weingarten Tomer | President, CEO | Sell | 32,159 | $16.56 | $532.6K | 1,251,780 −2.5% of holding | |
| Conder Keenan Michael | Chief Legal Officer & Sec'y | Sell | 5,871 | $16.56 | $97.2K | 573,536 −1% of holding | |
| TOMASELLO ROBIN | Chief Accounting Officer | Sell | 3,476 | $16.56 | $57.6K | 294,060 −1.2% of holding | |
| Weingarten Tomer | President, CEO | Sell 10b5-1 | 57,941 | $18.02 | $1.0M | 1,283,939 −4.3% of holding | |
| Larson Barbara A | Chief Financial Officer | Sell | 54,583 | $18.13 | $989.6K | 549,498 −9% of holding |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.