Insiders / Hata Yujiro S

Hata Yujiro S

CIK 1649119personinsider

Companies

First seen

Feb 2, 2026

Last activity

Mar 13, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Enanta Pharmaceuticals Inc · ENTA	Director	—	20,000	1	—
Ideaya Biosciences, Inc. · IDYA	CEO	—	600,000	1	—

2 positions · latest reported per filing

Company	Security	Shares	As of
Enanta Pharmaceuticals Inc	Stock Option (right to buy)Derivative	20,000	Mar 11, 2026
Ideaya Biosciences, Inc.	Stock Option (right to buy)Derivative	600,000	Jan 30, 2026

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jan 30, 2026	Grant	IDYA Ideaya Biosciences, Inc. Stock Option (right to buy)	—	+600K	600,000 0.62% of shares	low
Mar 11, 2026	Grant	ENTA Enanta Pharmaceuticals Inc Stock Option (right to buy)	—	+20K	20,000 0.07% of shares	low