Yonehiro Grant

Chief Operating Officer at Bolt Biotherapeutics, Inc. · on record since Feb 8, 2021
Senior Vice President at MAXYGEN INC · on record since Sep 24, 2009

Insider trading activity of Yonehiro Grant

Transactions on record: 53; since Mar 4, 2008

Open-market buys: 3; $9K

Open-market sells: 3; $43.8K

Companies traded: 2; last filing Sep 21, 2026

Figures computed from official regulatory filings — .

Companies where Yonehiro Grant has traded

Bolt Biotherapeutics, Inc.38 tx · $52.8K · Sep 21, 2026
MAXYGEN INC15 tx · $277.4K · May 18, 2011

Track record of Yonehiro Grant

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Yonehiro Grant

Co-insiders of Yonehiro Grant

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-6,850	3.24 USD	$22.2K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-4,909	3.32 USD	$16.3K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-1,417	3.77 USD	$5.3K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Feb 4, 2026	AwardD (derivative)	10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	4,999	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-660	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-11,399	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-2,142	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	9,499	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-822	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-1,653	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-9,499	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-4,642	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	11,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	11,399	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-3,214	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	3,214	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	660	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	4,642	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-7,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-11,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	7,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-4,999	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	2,142	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-17,499	—	n/a (No price was disclosed in the filing)	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-6,850	3.24 USD	$22.2K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-4,909	3.32 USD	$16.3K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Sep 21, 2026	Sell	-1,417	3.77 USD	$5.3K	SEC
Bolt Biotherapeutics, Inc.Listing on record	Feb 4, 2026	AwardD (derivative)	10,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	4,999	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-660	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-11,399	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-2,142	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	9,499	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-822	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-1,653	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-9,499	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-4,642	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	11,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	11,399	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-3,214	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	3,214	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	660	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	4,642	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-7,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-11,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	7,749	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-4,999	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	AwardD (derivative)	2,142	—	n/a (No price was disclosed in the filing)	SEC
Bolt Biotherapeutics, Inc.Listing on record	Dec 16, 2025	OtherD (derivative)	-17,499	—	n/a (No price was disclosed in the filing)	SEC