Insider Screener
Real-time Form 4 Filtering Engine
| Filing Date | Trade Date | Ticker | Company Name | Reporting Person | Relationship | Industry (by SEC) | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-19 01:49 | 2025-12-16 | S | SentinelOne, Inc. | PEEK MARK S | Director | Services-Prepackaged Software | BUY | $14.89 | 40,000 | $595,600 | 120,000 | +50.0% |
| 2024-04-06 01:10 | 2024-04-03 | S | SentinelOne, Inc. | PEEK MARK S | Director | Services-Prepackaged Software | BUY | $22.36 | 10,000 | $223,596 | 80,000 | +14.3% |
| 2023-12-11 18:35 | 2023-12-07 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | BUY | $46.59 | 10,000 | $465,864 | 81,562 | +14.0% |
| 2022-04-15 00:25 | 2022-04-12 | S | SentinelOne, Inc. | PEEK MARK S | Director | Services-Prepackaged Software | BUY | $34.40 | 30,000 | $1,032,000 | 70,000 | +75.0% |
| 2021-12-15 01:49 | 2021-12-13 | S | SentinelOne, Inc. | PEEK MARK S | Director | Services-Prepackaged Software | BUY | $48.02 | 30,000 | $1,440,573 | 40,860 | +276.2% |
| 2021-07-03 01:10 | 2021-07-02 | S | SentinelOne, Inc. | PEEK MARK S | Director | Services-Prepackaged Software | BUY | $35.00 | 10,000 | $350,000 | 10,000 | +100.0% |
| 2020-12-15 02:26 | 2020-12-10 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | SALE | $62.30 | 5,000 | $311,475 | 57,251 | -8.0% |
| 2020-09-11 23:59 | 2020-09-09 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $50.14 | 25,000 | $1,253,600 | 62,251 | -28.7% |
| 2020-02-22 02:59 | 2020-02-19 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $45.87 | 15,000 | $687,977 | 36,276 | -29.3% |
| 2019-05-03 23:50 | 2019-05-02 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $40.99 | 4,804 | $196,916 | 36,276 | -11.7% |
| 2019-05-01 00:10 | 2019-04-26 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $40.00 | 15,000 | $600,000 | 33,074 | -31.2% |
| 2018-05-05 00:31 | 2018-05-03 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $34.19 | 4,612 | $157,684 | 33,074 | -12.2% |
| 2018-02-23 00:58 | 2018-02-20 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $39.36 | 5,000 | $196,779 | 30,000 | -14.3% |
| 2018-02-16 02:19 | 2018-02-13 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | OPT+S | $39.80 | 10,000 | $397,985 | 30,000 | -25.0% |
| 2018-01-19 04:20 | 2018-01-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $112.02 | 17,916 | $2,006,898 | 169,717 | -9.5% |
| 2018-01-05 03:06 | 2018-01-02 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $105.31 | 45,000 | $4,738,856 | 187,633 | -19.3% |
| 2017-12-20 01:52 | 2017-12-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $103.06 | 1,563 | $161,088 | 187,721 | -0.8% |
| 2017-10-19 02:07 | 2017-10-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $107.50 | 9,516 | $1,022,940 | 189,284 | -4.8% |
| 2017-09-20 00:36 | 2017-09-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $104.88 | 1,562 | $163,816 | 198,800 | -0.8% |
| 2017-09-06 23:50 | 2017-09-01 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $108.94 | 8,467 | $922,398 | 200,362 | -4.1% |
| 2017-08-18 03:09 | 2017-08-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $102.00 | 10,249 | $1,045,426 | 208,829 | -4.7% |
| 2017-07-20 04:17 | 2017-07-17 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $102.73 | 9,449 | $970,710 | 219,078 | -4.1% |
| 2017-06-20 03:05 | 2017-06-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $97.72 | 1,563 | $152,741 | 228,527 | -0.7% |
| 2017-06-08 02:47 | 2017-06-05 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $102.87 | 23,977 | $2,466,516 | 229,856 | -9.4% |
| 2017-06-06 00:10 | 2017-06-02 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | SALE | $36.35 | 11,717 | $425,913 | 30,000 | -28.1% |
| 2017-05-18 02:29 | 2017-05-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $95.11 | 10,249 | $974,740 | 242,722 | -4.1% |
| 2017-04-19 03:08 | 2017-04-17 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $83.36 | 32,443 | $2,704,594 | 252,971 | -11.4% |
| 2017-03-22 04:18 | 2017-03-17 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $85.24 | 22,222 | $1,894,214 | 213,085 | -9.4% |
| 2017-03-18 03:00 | 2017-03-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $83.43 | 1,562 | $130,321 | 213,085 | -0.7% |
| 2017-02-18 03:01 | 2017-02-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $85.86 | 5,374 | $461,385 | 214,647 | -2.4% |
| 2017-01-20 02:54 | 2017-01-17 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $80.38 | 5,134 | $412,663 | 220,021 | -2.3% |
| 2017-01-06 04:07 | 2017-01-04 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $71.27 | 19,378 | $1,381,072 | 225,155 | -7.9% |
| 2016-12-20 03:46 | 2016-12-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $68.92 | 817 | $56,308 | 236,818 | -0.3% |
| 2016-11-18 04:05 | 2016-11-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $81.08 | 5,314 | $430,837 | 237,635 | -2.2% |
| 2016-10-20 01:27 | 2016-10-17 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $86.36 | 6,878 | $593,966 | 242,949 | -2.8% |
| 2016-09-20 02:30 | 2016-09-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $87.32 | 1,562 | $136,387 | 249,827 | -0.6% |
| 2016-09-09 02:28 | 2016-09-06 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $89.97 | 29,722 | $2,673,952 | 251,389 | -10.6% |
| 2016-09-02 02:22 | 2016-08-30 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $85.01 | 22,222 | $1,889,126 | 251,389 | -8.1% |
| 2016-08-31 03:43 | 2016-08-26 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $83.30 | 33,306 | $2,774,323 | 251,389 | -11.7% |
| 2016-08-18 02:37 | 2016-08-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $83.68 | 5,338 | $446,683 | 262,472 | -2.0% |
| 2016-08-12 18:43 | 2016-08-10 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | SALE | $27.60 | 10,953 | $302,303 | 30,000 | -26.7% |
| 2016-07-20 01:24 | 2016-07-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $79.05 | 6,904 | $545,735 | 267,810 | -2.5% |
| 2016-06-18 01:24 | 2016-06-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $80.71 | 17,158 | $1,384,791 | 274,714 | -5.9% |
| 2016-05-19 00:44 | 2016-05-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $71.17 | 5,311 | $377,973 | 291,674 | -1.8% |
| 2016-04-20 02:41 | 2016-04-15 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President | Services-Computer Processing & Data Preparation | SALE | $76.10 | 8,477 | $645,127 | 296,985 | -2.8% |
| 2016-03-23 03:16 | 2016-03-18 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President & CFO | Services-Computer Processing & Data Preparation | SALE | $72.31 | 3,964 | $286,637 | 227,997 | -1.7% |
| 2016-03-19 02:00 | 2016-03-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President & CFO | Services-Computer Processing & Data Preparation | SALE | $72.31 | 8,817 | $637,557 | 231,961 | -3.7% |
| 2016-02-19 04:54 | 2016-02-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President & CFO | Services-Computer Processing & Data Preparation | SALE | $49.82 | 3,893 | $193,967 | 240,788 | -1.6% |
| 2015-11-19 04:35 | 2015-11-16 | WDAY | Workday, Inc. | PEEK MARK S | Officer; co-President & CFO | Services-Computer Processing & Data Preparation | SALE | $79.54 | 3,823 | $304,064 | 244,671 | -1.5% |
| 2015-08-28 00:14 | 2015-08-26 | TRMB | TRIMBLE INC. | PEEK MARK S | Director | Measuring & Controlling Devices, NEC | BUY | $17.89 | 10,000 | $178,898 | 30,000 | +50.0% |
Strategic Signal Filtering
Our screener allows you to cut through the noise of routine stock grants and small trades. By focusing on high-value transactions from C-suite executives (CEO/CFO), you can identify where the "Smart Money" is being deployed with maximum conviction.
Investing Without Illusions
Insider data is not a magic wand, but it is the most honest indicator available. While insiders sell for many reasons (taxes, personal needs), they generally buy for only one: they believe the stock price is undervalued. We provide the tools to track these skin-in-the-game moves.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.