Lazar Jack R insider trades
Lazar Jack R has filed 68 Form 4s with the SEC that we hold, for Resideo Technologies, INC. (REZI) (Director), ThredUp Inc. (TDUP) (Director), Astera Labs, Inc. (ALAB) (Director) and Box INC (BOX) (Director), among 7 companies in all. Across all of them we count 4 purchases worth $486.7K and 61 sales worth $13.5M reported on Form 4. In the last 12 months: 0 purchases ($0) and 35 sales ($5.2M). The largest single trade was a sale of 8,706 shares of Astera Labs, Inc. worth $1.6M, dated 2025-08-27. The first filing on our record is dated 2021-09-03 and the latest 2026-10-05.
Resideo Technologies, INC. (REZI)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-05-14 | S, sale reported on Form 4 | 9,000 | $196.2K | 2024-05-16 |
ThredUp Inc. (TDUP)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-03-09 | P, purchase reported on Form 4 | 13,156 | $98.8K | 2023-04-06 |
| 2024-08-30 | P, purchase reported on Form 4 | 10,000 | $9.1K | 2024-09-03 |
| 2024-09-03 | P, purchase reported on Form 4 | 20,000 | $18.8K | 2024-09-04 |
Astera Labs, Inc. (ALAB)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2024-03-22 | P, purchase reported on Form 4 | 10,000 | $360.0K | 2024-03-22 |
| 2024-09-23 | S, sale reported on Form 4 | 17,954 | $910.1K | 2024-09-25 |
| 2024-09-23 | S, sale reported on Form 4 | 5,000 | $253.6K | 2024-09-25 |
| 2024-09-23 | S, sale reported on Form 4 | 2,046 | $104.5K | 2024-09-25 |
| 2024-10-09 | S, sale reported on Form 4 | 3,000 | $185.1K | 2024-10-11 |
| 2024-10-11 | S, sale reported on Form 4 | 2,000 | $139.9K | 2024-10-15 |
| 2024-11-15 | S, sale reported on Form 4 | 697 | $61.5K | 2024-11-19 |
| 2024-11-15 | S, sale reported on Form 4 | 2,458 | $215.0K | 2024-11-19 |
| 2024-11-15 | S, sale reported on Form 4 | 6,225 | $533.7K | 2024-11-19 |
| 2024-11-15 | S, sale reported on Form 4 | 3,120 | $270.2K | 2024-11-19 |
| 2025-02-18 | S, sale reported on Form 4 | 13 | $1.2K | 2025-02-20 |
| 2025-02-18 | S, sale reported on Form 4 | 2,233 | $203.4K | 2025-02-20 |
| 2025-02-18 | S, sale reported on Form 4 | 1,979 | $181.7K | 2025-02-20 |
| 2025-02-18 | S, sale reported on Form 4 | 546 | $50.6K | 2025-02-20 |
| 2025-02-18 | S, sale reported on Form 4 | 229 | $21.5K | 2025-02-20 |
| 2025-08-27 | S, sale reported on Form 4 | 8,718 | $1.5M | 2025-08-28 |
| 2025-08-27 | S, sale reported on Form 4 | 1,553 | $274.5K | 2025-08-28 |
| 2025-08-27 | S, sale reported on Form 4 | 8,706 | $1.6M | 2025-08-28 |
| 2025-08-27 | S, sale reported on Form 4 | 3,450 | $620.3K | 2025-08-28 |
| 2025-08-27 | S, sale reported on Form 4 | 73 | $13.4K | 2025-08-28 |
| 2025-11-20 | S, sale reported on Form 4 | 166 | $25.3K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 577 | $84.2K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 296 | $47.1K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 286 | $45.1K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 159 | $24.5K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 168 | $24.8K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 219 | $32.7K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 168 | $23.9K | 2025-11-21 |
| 2025-11-20 | S, sale reported on Form 4 | 461 | $66.2K | 2025-11-21 |
| 2026-03-05 | S, sale reported on Form 4 | 1,601 | $189.2K | 2026-03-09 |
| 2026-03-05 | S, sale reported on Form 4 | 3,167 | $378.4K | 2026-03-09 |
| 2026-03-05 | S, sale reported on Form 4 | 285 | $35.2K | 2026-03-09 |
| 2026-03-05 | S, sale reported on Form 4 | 1,035 | $125.5K | 2026-03-09 |
| 2026-03-05 | S, sale reported on Form 4 | 212 | $25.9K | 2026-03-09 |
| 2026-03-05 | S, sale reported on Form 4 | 1,200 | $144.3K | 2026-03-09 |
| 2026-03-16 | S, sale reported on Form 4 | 2,500 | $325.0K | 2026-03-17 |
| 2026-06-04 | S, sale reported on Form 4 | 243 | $83.6K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 527 | $180.5K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 246 | $84.9K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 238 | $82.4K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 193 | $67.1K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 423 | $148.0K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 17 | $6.0K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 318 | $111.8K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 1,101 | $388.6K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 373 | $132.2K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 946 | $336.0K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 566 | $202.0K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 200 | $67.9K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 879 | $318.9K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 854 | $308.4K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 1,116 | $401.9K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 877 | $315.1K | 2026-06-08 |
| 2026-06-04 | S, sale reported on Form 4 | 883 | $316.2K | 2026-06-08 |
Box INC (BOX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-04-05 | S, sale reported on Form 4 | 5,000 | $134.8K | 2023-04-07 |
| 2023-06-15 | S, sale reported on Form 4 | 5,000 | $149.8K | 2023-06-20 |
| 2024-08-29 | S, sale reported on Form 4 | 7,000 | $228.8K | 2024-08-30 |
| 2024-11-12 | S, sale reported on Form 4 | 2,500 | $86.9K | 2024-11-14 |
| 2025-09-26 | S, sale reported on Form 4 | 5,000 | $161.0K | 2025-09-30 |
| 2025-12-04 | S, sale reported on Form 4 | 2,500 | $79.4K | 2025-12-05 |
CSPR
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
GLOBALFOUNDRIES Inc. (GFS)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Silicon Laboratories INC. (SLAB)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-09-01 | S, sale reported on Form 4 | 1,353 | $216.5K | 2021-09-03 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1277624) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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