Graphite Bio layoff notices at a glance
Graphite Bio has filed 5 WARN notices with the California Employment Development Department between Mar 1, 2023 and Mar 1, 2023, naming 59 workers. All were layoffs rather than closures; 5 permanent, 0 temporary. The largest single notice named 33 workers in San Mateo County on Mar 1, 2023. Its latest notice, 33 workers in San Mateo County dated Mar 1, 2023, was 0.4% of the 7,523 workers named in all 134 San Mateo County notices of fiscal year 2022-2023. 3 of the notices show fewer than 60 days between the notice date and the effective date (see how to read this).
Every notice, newest first
| Notice date | Effective | County | City | Workers | Type | Days notice |
|---|---|---|---|---|---|---|
| Mar 1, 2023 | Apr 24, 2023 | San Mateo | Brisbane | 33 | Layoff, permanent | 54 under 60 |
| Mar 1, 2023 | Apr 24, 2023 | San Mateo | South San Francisco | 14 | Layoff, permanent | 54 under 60 |
| Mar 1, 2023 | Jun 1, 2023 | San Mateo | Brisbane | 7 | Layoff, permanent | 92 |
| Mar 1, 2023 | Jun 1, 2023 | San Mateo | South San Francisco | 3 | Layoff, permanent | 92 |
| Mar 1, 2023 | Mar 1, 2023 | San Mateo | South San Francisco | 2 | Layoff, permanent | 0 under 60 |
Sites named on the notices
- 1400 Sierra Point Parkway, Building C Brisbane CA 94005 (Mar 1, 2023, 33 workers)
- 201 Haskins Way Suite 210 South San Francisco CA 94080 (Mar 1, 2023, 14 workers)
Where the notices landed
- San Mateo County5 notices, 59 workers
- Brisbane2 notices, 40 workers
- South San Francisco3 notices, 19 workers
Local pages: San Mateo County employment law guide.
How to read this record
Notice date is the date on the employer's letter. Effective is the first day of separations it announced. Days notice is the gap between them; California Labor Code 1401 calls for 60 days from a covered employer, and section 1402 makes a short notice worth a day of pay and benefits for every day it is short, up to 60.
For Graphite Bio the shortest gap shown is 0 days. That is a reason to check whether an exception in 1401(c) or 1402.5 applied, whether the workers received the letter earlier than the EDD did, and whether anyone was let go before the effective date. It is not, by itself, a finding against the employer.
Full statute walk-through: the California 60-day rule, section by section.
If you work, or worked, at Graphite Bio
Keep the notice, every email about the selection, and your final pay stub. A free review covers four things in one call: whether the notice period was honored and paid, whether final pay and vacation payout arrived on time, whether the selection pattern raises an age, pregnancy or leave, or retaliation question, and what a proposed severance release is actually worth before you sign it. Call (800) 371-3088 or send the notice.
Source: California EDD WARN report, fiscal year 2022-2023. Record last checked against the EDD on Oct 30, 2026. Back to the layoff tracker.
About this data: Notices come from the California Employment Development Department WARN reports (fiscal years 2014-2015 to today) and are reloaded from the EDD every Tuesday and Thursday. Employer names appear as the employer wrote them on the notice, grouped where the names clearly refer to the same company. A notice is not a finding that any law was broken. This page is general information, not legal advice about your situation.