Jack R Lazar
CIK 1277624 · Chief Financial Officer · last filed 2026-10-05
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
ALAB price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
ATTN: STOCK ADMINISTRATION
AUSTIN, TX 78701
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| REZI | Director | 126,680 | $18.30 | $2.32M | $159.8K | 34 | 2026-10-05 |
| GFS | Director | 28,094 | $45.87 | $1.29M | $0 | 2 | 2026-07-31 |
| BOX | Director | 33,727 | $42.67 | $1.44M | -$840.5K | 13 | 2026-06-29 |
| ALAB | Director | 77,775 | $298.21 | $23.19M | -$11.94M | 12 | 2026-06-08 |
| TDUP | Director | 311,414 | $2.17 | $677.3K | $325.5K | 18 | 2024-09-04 |
| Casper Sleep Inc. (CSPR) Delisted | Director | 0 | $6.78 | $0 | $200.0K | 4 | 2022-01-26 |
| SLAB | Director | 10,466 | $221.62 | $2.32M | -$1.63M | 20 | 2021-09-03 |
| Mellanox Technologies, Ltd. (MLNX) Delisted | Director | 633 | — | — | $0 | 4 | 2020-04-27 |
| ON Semiconductor Connectivity Solutions, Inc. (QTNA) Delisted | Director | 29,933 | — | — | $240.0K | 3 | 2018-06-07 |
| TUBEMOGUL INC (TUBE) Delisted | Director | 34,693 | — | — | $20.0K | 5 | 2016-08-18 |
| GPRO | Chief Financial Officer | 35,096 | $1.03 | $36.1K | -$11.53M | 10 | 2016-01-26 |
| ATHR | CFO and Senior VP | 62,263 | $2.67 | $165.9K | -$12.17M | 36 | 2011-05-24 |
Recent Filings · Page 15 of 18
179 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2014-07-25 | TUBEMOGUL INC (TUBE) Delisted | Buy (P) | +10,000 | $70.0K | EDGAR |
| 2013-08-06 | SLAB | Buy (P) | +5,000 | $201.2K | EDGAR |
| 2013-04-17 | SLAB | Grant (A) | +3,546 | $150.0K | EDGAR |
| 2011-05-24 | ATHR | Mixed | −161,139 | -$2.80M | EDGAR |
| 2011-05-09 | ATHR | Tax (F) | −4,491 | -$201.2K | EDGAR |
| 2011-02-09 | ATHR | Tax (F) | −4,991 | -$222.3K | EDGAR |
| 2011-01-19 | ATHR | Grant (A) | +58,000 | $0 | EDGAR |
| 2011-01-12 | ATHR | Mixed | +16,455 | -$464.6K | EDGAR |
| 2010-05-11 | ATHR | Sell (S) | −2,501 | -$92.0K | EDGAR |
| 2010-05-05 | ATHR | Sell (S) | −1,598 | -$60.1K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.