Matthew Steven Hosen
QUINN EMANUEL URQUHART & SULLIVAN LLP (WA)
- Address of record
- 1109 FIRST AVE, STE 210, SEATTLE, WA 98101, 206-905-7000
- Phone
- (206) 905-7000
- Fax
- Fax 206-905-7100
Contact details as filed with the court in the cases below.
Case history
Publicly tracked matters where this attorney is listed as counsel.
Brown v. Kalshi Inc Class Action
A proposed class action alleges fraud by Kalshi Inc, apparently a financial services or trading platform. Based solely on the docket caption and nature-of-suit code (370 Other Fraud), the complaint appears to claim that the defendant engaged in fraudulent conduct affecting users or customers, though the specific allegations cannot be determined from the limited docket metadata available.
- Filed
- April 27, 2026
- Represents
- Kalshi Inc
ZoomInfo Data Privacy Class Action
A proposed class action against ZoomInfo Technologies LLC, apparently concerning statutory privacy claims. The docket text does not include the complaint's factual allegations, but the nature-of-suit code and parties suggest claims that ZoomInfo collected, used, or disclosed individuals' personal information without consent. These are allegations in a newly filed case, not proven facts and not yet a settlement.
- Filed
- May 16, 2025
- Represents
- ZoomInfo Technologies LLC
ZoomInfo Privacy Class Action
A proposed class action against ZoomInfo Technologies LLC, apparently concerning statutory claims. The docket text does not specify the underlying allegations, but the case is proceeding through class discovery and class certification scheduling. These are allegations in a newly filed case, not proven facts and not a settlement.
- Filed
- September 5, 2024
- Represents
- ZoomInfo Technologies LLC
“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.