# A US federal court let a nationwide age-discrimination case against Workday's AI hiring tool proceed as a collective action (May 2025)

> On May 16, 2025 U.S. District Judge Rita F. Lin (N.D. Cal.) granted preliminary certification of a nationwide ADEA collective action in Mobley v. Workday, letting opt-in notice issue to job applicants aged 40+ who were denied recommendations by Workday's AI applicant-screening system since September 24, 2020; a procedural ruling, not a merits finding, which Workday denies.

- Verification status: verified
- Case type: deployment
- Provider: Workday, Inc. (AI applicant-recommendation system)
- Client: Workday, Inc., HR / recruiting SaaS (AI applicant screening) (named)
- Sector: software / US / ops
- Verified on: 2026-08-27
- Canonical URL: https://theinternetninja.com/stories/mobley-v-workday-nd-cal-ai-hiring-tools-age-discrimination-nationwide-adea-collective-certified-2025/
- Source: The Internet Ninja (theinternetninja.com), independent verified-proof platform

## Verification method

Court-origin AI-accountability record. The Tier-1 primary is the signed N.D. Cal. Order granting preliminary collective certification (Dkt. No. 128, filed 05/16/2025, Case No. 23-cv-00770-RFL), byte-tied to the Internet Archive RECAP mirror (sha1 cce3bb15…d6a131 == item gov.uscourts.cand.408645). Two mutually independent secondaries reproduce the May-16-2025 holding firsthand and are byte-tied to their own captures: CNN Business (cap 20250523034701) and a Holland & Knight client alert (cap 20250528132642). Every quoted line was re-read verbatim from the captures this session. This is a procedural certification, not a merits ruling; Workday denies wrongdoing. No green badge without a human confirmation step.

## FAQ

**What did the court decide in Mobley v. Workday?**

On May 16, 2025, Judge Rita F. Lin (N.D. Cal.) granted preliminary certification of a nationwide ADEA collective action, letting opt-in notice issue. It is a procedural ruling, not a finding that Workday discriminated; Workday denies wrongdoing.

**Who is covered by the Workday AI hiring discrimination collective action?**

Job applicants aged 40 and over who were denied employment recommendations through Workday's AI applicant-screening platform since September 24, 2020.

**Did the court find Workday's AI hiring tool discriminatory?**

No. The ADEA collective certification is procedural, allowing opt-in notice to issue; the disparate-impact allegations are credited only as plausible at the notice stage, not decided on the merits.

## Full case file

# Mobley v. Workday: a court cleared an AI hiring tool to be challenged at collective-action scale

## What the court did

On **May 16, 2025**, U.S. District Judge **Rita F. Lin** of the Northern District of California signed an order in *Mobley v. Workday, Inc.* (Case No. 23-cv-00770-RFL) titled "ORDER GRANTING PRELIMINARY COLLECTIVE CERTIFICATION," which concludes that "Mobley's Motion for Conditional Certification of Collective Action (Dkt. No. 106) is GRANTED, and notice should issue to the collective members" [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/). Reporting the order independently, CNN Business wrote that "Judge Rita Lin's Friday preliminary order will allow the case to proceed as a collective action suit — similar to a class action," and that "Workday is facing a collective action lawsuit alleging that its job applicant screening technology is discriminatory, following an order by a California district judge on Friday" [source](https://www.cnn.com/2025/05/22/tech/workday-ai-hiring-discrimination-lawsuit). A Holland & Knight client alert reported the same holding firsthand, noting the court "granted preliminary certification under ADEA, allowing the lawsuit to move forward as a nationwide collective action" [source](https://www.hklaw.com/en/insights/publications/2025/05/federal-court-allows-collective-action-lawsuit-over-alleged).

## What the court certified

The certified age-discrimination (ADEA) collective covers "individuals aged 40 and over who, from September 24, 2020, through the present" applied for jobs through Workday's platform and were denied employment recommendations [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/), a scope Holland & Knight summarized as "ages 40 and older who were denied employment recommendations through Workday's platform since Sept. 24, 2020" [source](https://www.hklaw.com/en/insights/publications/2025/05/federal-court-allows-collective-action-lawsuit-over-alleged). The court rejected Workday's objection that the collective was simply too large to notify, writing: "If the collective is in the 'hundreds of millions' of people, as Workday speculates, that is because Workday has been plausibly accused of discriminating against a broad swath of applicants" [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/). The "hundreds of millions" figure is Workday's own speculation about the collective's size, quoted by the court, not a court finding of that many victims [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/).

## Why an AI tool could be certified at this scale

The court found the collective members "alike in the central way that matters: they were allegedly required to compete on unequal footing due to Workday's discriminatory AI recommendations," and framed the common question as whether "that system has a disparate impact on applicants over forty" [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/). Lead plaintiff Derek Mobley, per CNN, says he was "rejected from more than 100 jobs on the platform over seven years because of his age, race and disabilities" [source](https://www.cnn.com/2025/05/22/tech/workday-ai-hiring-discrimination-lawsuit).

## What this is, and what it is not

This is a **procedural** certification: it lets opt-in notice go out to potential collective members. It is **not** a merits ruling that Workday discriminated; the "discriminatory AI recommendations" language appears inside the court's description of the *allegations* it credits as plausible at the notice stage [source](https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/). Workday denies wrongdoing and has characterized the case as without merit [source](https://www.cnn.com/2025/05/22/tech/workday-ai-hiring-discrimination-lawsuit). This is a court-origin record, byte-tied to the primary order: green depends only on TIN's independent check against the public record, never on any party confirming it.

**The weakest load-bearing link, named where you meet it:** the critical fact, that the May-16-2025 order granting preliminary ADEA collective certification exists and says what is quoted, rests firmest on the Tier-1 court order itself, which is byte-tied to the Internet Archive RECAP mirror. Its two corroborating secondaries are both strong but neither is a wire-service audit: CNN is original "New York CNN" reporting and Holland & Knight is a law-firm client alert (firm analysis, not provider marketing), each independent of the other and of the Reuters wire. A second *newswire* on the exact certification could not be byte-tied from this host (Reuters had no reachable Wayback 200 capture; HR Dive 403s every fetcher), so the record here is two independent secondaries plus the primary, not a wire-confirmed consensus.

## How this was verified

- **Method:** Every quoted line was read verbatim from the archived captures in `sources/` and `sources/captures/` and re-bound this session; no figure is paraphrased, rounded, or recalled.
- **Primary anchor (Tier 1):** the signed N.D. Cal. Order, Dkt. No. 128 (filed 05/16/2025), Case No. 23-cv-00770-RFL, is byte-tied: the local PDF (`sources/order128-mobley-workday-nd-cal-20250516.pdf`, 320,628 bytes, sha1 `cce3bb15b38093122ffe40ef1f42563863d6a131`) matches the Internet Archive RECAP item `gov.uscourts.cand.408645` file `.128.0.pdf` by sha1 and size, independently re-verifiable without auth. Quotes were checked against its 20-page pdf-parse text extraction (`sources/captures/order128-nd-cal-mobley-workday-20250516.txt`).
- **Independent secondary #1 (Tier 2):** CNN Business (Clare Duffy), byte-tied to Wayback capture `20250523034701` (CDX digest `WF6N3EBFS2G4FZF2I25WODN6VYWXGA6R` == sha1-b32 of the stored id_ payload); original reporting, no Reuters credit in the body.
- **Independent secondary #2 (Tier 2):** Holland & Knight client alert, "Federal Court Allows Collective Action Lawsuit Over Alleged AI Hiring Bias" (May 27, 2025), byte-tied to Wayback capture `20250528132642` (stored 13,712-byte payload sha1-b32 `ZEXULXU3SCQP34QNLWDTGRYKBW566K5T` == CDX digest); original firm analysis linking straight to the order, independent of both CNN and the Reuters wire (zero "reuters"/"cnn" strings in the body).
- **Conflation guards:** this is procedural certification (opt-in notice), NOT a merits finding; "hundreds of millions" is Workday's own speculation quoted by the court, not a headcount of victims; the certified collective is the ADEA (age 40+) claim only (the race/disability theories are part of the broader suit but not this collective); later July-2025 HiredScore and 2026 FEHA developments are NOT asserted here.
- **Open item (human, post-graduation):** a clerk/counsel confirmation that the May-16-2025 Order stands (not stayed, vacated, or amended on reconsideration or appeal), the exact collective definition, and Workday's on-record response. Green never depends on that call landing; it is a courtesy step, not the proof.
- **Verified on:** 2026-08-09 (presentation rebuilt 2026-08-18).

## Related case files

- [SafeRent settles a class action over its algorithmic tenant-screening scores for $2.275M](/stories/louis-v-saferent-algorithmic-tenant-screening-2-275m-class-settlement-dmass-2024/): the closest sibling, an automated scoring system challenged at class scale for discriminatory impact, resolved through the courts rather than by the vendor's own account.
- [The EEOC's first AI hiring settlement: iTutorGroup pays $365K for age-screening applicants](/stories/eeoc-itutorgroup-ai-hiring-age-screening-365k-consent-decree-2023/): the closest legal precedent, an AI applicant-screening system challenged for age discrimination and resolved through a federal enforcement process rather than the vendor's own account.
- [SEC penalizes Delphia and Global Predictions $400K for "AI washing"](/stories/sec-ai-washing-delphia-global-predictions-400k-civil-penalties-2024/): the accountability shape at the regulator level, claims about AI tested against the public record and enforced, not taken on trust.

## Sources

1. **[Tier 1]** U.S. District Court, N.D. Cal. · "Order Granting Preliminary Collective Certification," *Mobley v. Workday, Inc.*, No. 23-cv-00770-RFL, Dkt. No. 128 · May 16, 2025 · https://www.courtlistener.com/docket/66831340/128/mobley-v-workday-inc/
2. **[Tier 2]** CNN Business (Clare Duffy) · "Lawsuit claims discrimination by Workday's hiring tech prevented people over 40 from getting hired" · May 22, 2025 · https://www.cnn.com/2025/05/22/tech/workday-ai-hiring-discrimination-lawsuit
3. **[Tier 2]** Holland & Knight · "Federal Court Allows Collective Action Lawsuit Over Alleged AI Hiring Bias" · May 27, 2025 · https://www.hklaw.com/en/insights/publications/2025/05/federal-court-allows-collective-action-lawsuit-over-alleged