Kristin I Sheffield-Whitehead
Latham & Watkins LLP
- Address of record
- 505 Montgomery Street, Suite 2000, San Francisco, CA 94111, 415-391-0600
- Phone
- (415) 391-0600
- Fax
- Fax 415-395-8095
Contact details as filed with the court in the cases below.
Case history
Publicly tracked matters where this attorney is listed as counsel.
Perplexity AI Class Action
A proposed class action against Perplexity AI, Inc. has been filed. Based on the case caption and 'Other Personal Injury' classification, the lawsuit apparently alleges claims concerning personal injury or harm involving the defendant's AI services, potentially involving data privacy or user data practices. Without access to the full complaint text, the specific allegations cannot be determined with certainty.
- Filed
- March 31, 2026
- Represents
- Meta Platforms Inc.
Buchholz v. Lean Rx Class Action
This proposed class action names Lean Rx, Inc. as defendant and appears to involve personal injury claims designated under nature of suit code 360 (Other Personal Injury). While specific allegations are not detailed in the available docket information, the case likely concerns harm allegedly caused by a product or service offered by Lean Rx, potentially involving weight-loss or supplement-related claims given the defendant's apparent business focus.
- Filed
- January 26, 2026
- Represents
- Meta Platforms, Inc.
A.A. v. Meta Platforms Data/Privacy Class Action
A proposed class action against Meta Platforms, Inc. filed in federal court in Northern California. Based on the nature of suit code (890 Other Statutory Actions) and the use of initials in the caption, this appears to allege violations of privacy or data protection statutes affecting ordinary users or account holders, though specific allegations cannot be determined from the limited docket information provided.
- Filed
- October 15, 2025
- Represents
- Meta Platforms, Inc.
Portillo v. Nebula Genomics Privacy Class Action
This proposed class action against Nebula Genomics, Inc., a genetic testing and genomics company, alleges violations of civil rights or privacy law. Based on the nature of suit and defendant's business model, the case apparently concerns alleged improper collection, use, disclosure, or handling of consumers' genetic or personal health data.
- Filed
- August 15, 2025
- Represents
- Meta Platforms Inc
Spring Fertility Patient Class Action
This is a proposed class action against Spring Fertility Holdings, LLC, apparently concerning personal injuries or other harms related to fertility services. The plaintiff J.S., likely a patient, brings claims on behalf of a class of similarly situated individuals. Specific allegations are not detailed in the docket text, but the nature of suit is 'P.I.: Other.'
- Filed
- October 22, 2024
- Represents
- Meta Platforms, Inc.
Nebula Genomics Privacy Class Action
This is a proposed class action against Nebula Genomics, Inc. The case appears to involve privacy or civil rights claims related to its genetic testing services, but the docket text does not describe specific factual allegations. The case also names Meta Platforms, Inc., Microsoft Corporation, and Google LLC as parties and has been transferred to the District of Massachusetts.
- Filed
- October 10, 2024
- Represents
- Meta Platforms, Inc.
Google Personal Injury Class Action
A proposed class action against Google LLC, apparently concerning personal injury or other tort claims. The limited caption and nature-of-suit code do not provide further details, but the case appears to be brought on behalf of ordinary individuals.
- Filed
- September 10, 2024
- Represents
- Meta Platforms, Inc.
Period Tracker Data Privacy Settlement (Flo, Google, Flurry)
Between November 2016 and February 2019, the Flo period and ovulation tracker app allegedly incorporated code from third-party software development kits (from Flurry, Meta, and Google) through which user information related to menstruation and pregnancy was allegedly shared without proper legal authorization. Google agreed to pay $48 million, Flo agreed to pay $8 million, and Flurry agreed to pay $3.5 million to settle. All defendants deny wrongdoing and assert they did nothing wrong.
- Settlement fund
- $59.5M
- Claim deadline
- October 15, 2026
- Represents
- Facebook, Inc.
“Recovery” and “exposure” refer to total disclosed settlement funds in associated cases, not money personally won or lost by an attorney. Settlements generally resolve disputed allegations without a finding that either side won. Data comes from public court dockets and may be incomplete.