← All Keystone Acquisition CORP filings

Keystone Acquisition CORP Schedule 13G passive stakes

Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.

NASDAQ
KEYY
Keystone Acquisition CORP
SCHEDULE: AQR Capital Management Discloses Stake in Keystone Acquisition Corp.
AQR Capital Management entities report beneficial ownership of 5.99% of Keystone Acquisition Corp.'s Class A ordinary shares as of June 30, 2026.
NASDAQ
KEYY
Keystone Acquisition CORP
SCHEDULE: Magnetar Discloses 6.96% Stake in Keystone Acquisition Corp
Magnetar Financial LLC and its affiliates have reported beneficial ownership of 2,000,000 Class A ordinary shares, representing 6.96% of Keystone Acquisition Corp.