Blackstone Inc.

FinanceUnited States of America

Blackstone Inc. is a finance organisation in Massachusetts. It appears on the Massachusetts Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on September 30, 2026.

Headquarters: New York City, United States
Employees: 4,735 (as of 2023)
ISIN: US09253U1088
LEI: 5299004LW4QWGZUB8Y96
Wikidata: Q880942

Data as of October 11, 2026.

Sources

mass.gov

Confirmed incident

US-MA

Disclosed: September 30, 2026

Timeline

September 30, 2026
Reported to regulator Regulator
MA AG breach notification: 17 Massachusetts residents affected
^source

What a Massachusetts notice means

Governed by M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗

Sources

Timeline

Related

Same sector and location

Disclosed around the same time