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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-17 22:26 | 2026-03-16 | ALAB | Astera Labs, Inc. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $130.00 | 2,500 | $325,000 | 84,851 | -2.9% |
| 2026-03-09 21:46 | 2026-03-05 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $119.80 | 7,500 | $898,472 | 87,351 | -7.9% |
| 2025-12-06 01:28 | 2025-12-04 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $31.77 | 2,500 | $79,420 | 25,355 | -9.0% |
| 2025-11-22 00:10 | 2025-11-20 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $149.55 | 2,500 | $373,873 | 94,851 | -2.6% |
| 2025-10-01 00:31 | 2025-09-26 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $32.20 | 5,000 | $160,975 | 27,855 | -15.2% |
| 2025-08-29 02:24 | 2025-08-27 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $178.42 | 22,500 | $4,014,398 | 97,351 | -18.8% |
| 2025-02-21 02:46 | 2025-02-18 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $91.69 | 5,000 | $458,451 | 117,500 | -4.1% |
| 2024-11-20 00:51 | 2024-11-15 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $86.44 | 12,500 | $1,080,439 | 122,500 | -9.3% |
| 2024-11-15 03:21 | 2024-11-12 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $34.75 | 2,500 | $86,875 | 26,697 | -8.6% |
| 2024-10-15 23:08 | 2024-10-11 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $69.95 | 2,000 | $139,900 | 135,000 | -1.5% |
| 2024-10-11 23:12 | 2024-10-09 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $61.69 | 3,000 | $185,070 | 137,000 | -2.1% |
| 2024-09-25 23:25 | 2024-09-23 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $50.72 | 25,000 | $1,268,040 | 140,000 | -15.2% |
| 2024-09-05 02:07 | 2024-09-03 | TDUP | ThredUp Inc. | LAZAR JACK R | Director | Retail-Catalog & Mail-Order Houses | BUY | $0.94 | 20,000 | $18,844 | 298,258 | +7.2% |
| 2024-09-03 16:12 | 2024-08-30 | TDUP | ThredUp Inc. | LAZAR JACK R | Director | Retail-Catalog & Mail-Order Houses | BUY | $0.91 | 10,000 | $9,140 | 278,258 | +3.7% |
| 2024-08-31 00:30 | 2024-08-29 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $32.68 | 7,000 | $228,732 | 29,197 | -19.3% |
| 2024-05-16 23:13 | 2024-05-14 | REZI | RESIDEO TECHNOLOGIES, INC. | LAZAR JACK R | Director | Wholesale-Hardware | SALE | $21.80 | 9,000 | $196,210 | 91,168 | -9.0% |
| 2024-03-23 00:06 | 2024-03-22 | ALAB | ASTERA LABS INC COMMON STOCK (Ticker: 1ALAB) | LAZAR JACK R | Director | Semiconductors & Related Devices | BUY | $36.00 | 10,000 | $360,000 | 165,000 | +6.5% |
| 2023-06-21 00:07 | 2023-06-15 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $29.95 | 5,000 | $149,750 | 21,555 | -18.8% |
| 2023-04-08 00:52 | 2023-04-05 | BOX | BOX INC | LAZAR JACK R | Director | Services-Prepackaged Software | SALE | $26.95 | 5,000 | $134,750 | 26,555 | -15.8% |
| 2023-04-06 23:23 | 2022-03-09 | TDUP | ThredUp Inc. | LAZAR JACK R | Director | Retail-Catalog & Mail-Order Houses | BUY | $7.51 | 13,156 | $98,775 | 13,156 | +100.0% |
| 2022-03-12 00:32 | 2022-03-09 | TDUP | ThredUp Inc. | LAZAR JACK R | Director | Retail-Catalog & Mail-Order Houses | BUY | $7.51 | 13,156 | $98,775 | 57,456 | +29.7% |
| 2021-09-03 19:55 | 2021-09-01 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $160.00 | 1,353 | $216,480 | 10,466 | -11.4% |
| 2021-04-02 01:28 | 2021-03-30 | TDUP | ThredUp Inc. | LAZAR JACK R | Director | Retail-Catalog & Mail-Order Houses | BUY | $14.00 | 7,142 | $99,988 | 17,856 | +66.7% |
| 2021-01-06 02:45 | 2021-01-04 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $129.75 | 1,500 | $194,625 | 10,576 | -12.4% |
| 2020-11-20 01:24 | 2020-11-18 | REZI | RESIDEO TECHNOLOGIES, INC. | LAZAR JACK R | Director | Wholesale-Hardware | BUY | $15.00 | 6,666 | $99,990 | 43,052 | +18.3% |
| 2020-11-10 23:15 | 2020-11-09 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $119.75 | 1,500 | $179,625 | 12,076 | -11.0% |
| 2020-11-10 03:55 | 2020-11-05 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $109.75 | 2,000 | $219,500 | 13,576 | -12.8% |
| 2020-07-15 17:39 | 2020-07-13 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $104.75 | 1,000 | $104,750 | 15,576 | -6.0% |
| 2020-02-13 00:32 | 2020-02-10 | CSPR | N/A | LAZAR JACK R | Director | Other | BUY | $12.00 | 16,666 | $199,992 | 16,666 | +100.0% |
| 2019-11-19 01:13 | 2019-11-15 | REZI | RESIDEO TECHNOLOGIES, INC. | LAZAR JACK R | Director | Wholesale-Hardware | BUY | $10.26 | 25,000 | $256,500 | 25,009 | +277,777.8% |
| 2019-04-26 00:48 | 2019-04-25 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $109.75 | 750 | $82,313 | 14,391 | -5.0% |
| 2018-11-08 00:15 | 2018-11-05 | REZI | RESIDEO TECHNOLOGIES, INC. | LAZAR JACK R | Director | Wholesale-Hardware | SALE | $24.35 | 18 | $438 | 9 | -66.7% |
| 2018-06-12 00:32 | 2018-06-11 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $108.23 | 4,750 | $514,093 | 13,101 | -26.6% |
| 2016-11-05 02:52 | 2016-11-02 | QTNA | N/A | LAZAR JACK R | Director | Other | BUY | $16.00 | 15,000 | $240,000 | 15,000 | +100.0% |
| 2016-10-07 23:02 | 2016-10-05 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $60.00 | 4,000 | $240,000 | 13,324 | -23.1% |
| 2016-09-16 19:52 | 2016-09-15 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | SALE | $55.92 | 4,000 | $223,680 | 17,324 | -18.8% |
| 2016-08-19 03:11 | 2016-08-11 | TUBE | N/A | LAZAR JACK R | Director | Other | OPT+S | $10.00 | 5,000 | $50,000 | 34,693 | -12.6% |
| 2015-08-24 23:15 | 2015-08-21 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | BUY | $42.03 | 3,500 | $147,104 | 17,986 | +24.2% |
| 2015-07-25 02:57 | 2015-07-22 | GPRO | GoPro, Inc. | LAZAR JACK R | Officer; Chief Financial Officer | Photographic Equipment & Supplies | OPT+S | $61.42 | 75,000 | $4,606,755 | 19,480 | -79.4% |
| 2015-06-10 04:00 | 2015-06-08 | GPRO | GoPro, Inc. | LAZAR JACK R | Officer; Chief Financial Officer | Photographic Equipment & Supplies | OPT+S | $59.90 | 25,000 | $1,497,545 | 19,480 | -56.2% |
| 2015-06-02 04:39 | 2015-05-28 | GPRO | GoPro, Inc. | LAZAR JACK R | Officer; Chief Financial Officer | Photographic Equipment & Supplies | OPT+S | $55.03 | 75,000 | $4,127,250 | 19,480 | -79.4% |
| 2014-11-27 02:12 | 2014-11-25 | GPRO | GoPro, Inc. | LAZAR JACK R | Officer; Chief Financial Officer | Photographic Equipment & Supplies | SALE | $72.38 | 18,000 | $1,302,750 | 0 | -100.0% |
| 2014-07-26 03:03 | 2014-07-23 | TUBE | N/A | LAZAR JACK R | Director, Other | Other | BUY | $7.00 | 10,000 | $70,000 | 10,000 | +100.0% |
| 2013-08-06 21:58 | 2013-08-02 | SLAB | SILICON LABORATORIES INC. | LAZAR JACK R | Director | Semiconductors & Related Devices | BUY | $40.23 | 5,000 | $201,156 | 8,546 | +141.0% |
| 2010-05-12 03:40 | 2010-05-10 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | SALE | $36.80 | 2,501 | $92,044 | 76,166 | -3.2% |
| 2010-05-06 03:46 | 2010-05-04 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | SALE | $37.59 | 1,598 | $60,076 | 78,667 | -2.0% |
| 2010-04-13 03:43 | 2010-04-12 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | OPT+S | $39.51 | 15,000 | $592,650 | 79,331 | -15.9% |
| 2010-02-13 02:42 | 2010-02-12 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | OPT+S | $34.51 | 25,000 | $862,750 | 79,331 | -24.0% |
| 2010-02-10 05:37 | 2010-02-09 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | SALE | $32.95 | 6,340 | $208,878 | 79,331 | -7.4% |
| 2010-02-04 04:23 | 2010-02-02 | ATHR | N/A | LAZAR JACK R | Officer; Chief Financial Officer and VP | Other | OPT+S | $33.38 | 30,619 | $1,022,160 | 85,671 | -26.3% |
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.