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REPORTED · WARN NOTICEPublished Dec 10, 2025

Poseida Therapeutics, Inc. Layoff — October 2025

EMPLOYEES AFFECTED
52
SHARE OF WORKFORCE
~52%
EFFECTIVE DATE
Oct 1, 2025
52 OF 100 EMPLOYEES

What we know

Location: San Diego, CA (San Diego County).

A WARN notice was filed on July 31, 2025.

Disclosed through an official WARN filing with the CA state workforce agency.

Summary

Poseida Therapeutics, Inc. disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice filed with the CA state workforce agency on July 31, 2025. The notice covers 52 employees in San Diego, CA (San Diego County), with the layoff effective October 1, 2025.

That is roughly 52% of the 100 people Poseida Therapeutics, Inc. employs.

Comments (1)

Anonymous by default. Be kind — people reading this may be going through it right now.

LTLayoffTalk StaffStaff1 days ago

Poseida Therapeutics, Inc. cut 52 jobs in San Diego, CA on October 1, 2025. Were you affected, or do you know people who were? How was it handled — severance, notice, which teams? You can post anonymously below.

SOURCE
Official WARN notice
View state filing ↗
P
Poseida Therapeutics, Inc.PSTX
Health Care · 100 employees
1
EVENTS TRACKED
52
AFFECTED SINCE 2025
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CREATED DEC 10, 2025LAST UPDATED DEC 10, 2025