Insider · CIK 0001761333

Chow Gregory K.

Reports to the SEC for 2 companies · SOUTH SAN FRANCISCO, CA

sec.gov

Transactions

Companies

Filings

CIK

0001761333

Forms 4 and 5

Insider transactions

17 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-02	STROSUTRO BIOPHARMA, INC.M Exercise/Conversion	CFO	MExercise/Conversion	+2,500 sh	—	—	4,725
2026-06-02	STROSUTRO BIOPHARMA, INC. · Restricted Stock Units (RSUs)M Exercise/Conversion	CFO	MExercise/Conversion	−2,500 sh	—	—	7,500
2026-03-02	STROSUTRO BIOPHARMA, INC. · Restricted Stock Units (RSUs)A Award	CFO	AAward	+5,000 sh	—	—	5,000
2026-03-02	STROSUTRO BIOPHARMA, INC. · Stock Option (right to buy)A Award	CFO	AAward	+40K sh	—	—	40,000
2025-12-23	STROSUTRO BIOPHARMA, INC. · Stock Option (right to buy)A Award	CFO	AAward	+8,200 sh	—	—	8,200
2025-10-15	STROSUTRO BIOPHARMA, INC.P Purchase	CFO	PPurchase	+19.8K sh	$0.81	+$16K	19,750
2025-06-02	STROSUTRO BIOPHARMA, INC. · Restricted Stock Unit (RSU)A Award	CFO	AAward	+100K sh	—	—	100,000
2025-06-02	STROSUTRO BIOPHARMA, INC. · Stock Option (right to buy)A Award	CFO	AAward	+275K sh	—	—	275,000
2021-01-04	APTOFAptose Biosciences Inc. · Employee Stock Option (Right to Buy)A Award	Executive VP & CFO	AAward	+343K sh	—	—	343,000
2020-07-10	APTOFAptose Biosciences Inc.S Sale	Executive VP & CFO	SSale	−127K sh	$6.05	−$766K	232,846
2020-03-10	APTOFAptose Biosciences Inc.A Award	Executive VP & CFO	AAward	+225K sh	—	—	359,514
2020-03-10	APTOFAptose Biosciences Inc.A Award	Executive VP & CFO	AAward	+225K sh	—	—	359,514
2020-01-31	APTOFAptose Biosciences Inc. · Employee Option GrantA Award	Executive VP & CFO	AAward	+1.2M sh	—	—	1,200,000
2019-06-05	APTOFAptose Biosciences Inc.P Purchase	Executive VP & CFO	PPurchase	+7,500 sh	$1.84	+$13.8K	134,514
2019-03-13	APTOFAptose Biosciences Inc.P Purchase	Executive VP & CFO	PPurchase	+5,000 sh	$1.79	+$8,928	127,014
2019-03-13	APTOFAptose Biosciences Inc.P Purchase	Executive VP & CFO	PPurchase	+10K sh	$1.74	+$17.4K	122,014
2019-01-02	APTOFAptose Biosciences Inc. · Stock Options (Right to Buy)A Award	Executive VP & CFO	AAward	+300K sh	—	—	300,000

Recent filings

Accepted (ET)
Jun 24
Chow Gregory K.0001761333-26-000005
SEC(opens sec.gov)
Mar 34
Chow Gregory K.0001761333-26-000002
SEC(opens sec.gov)
Dec 294
Chow Gregory K.0001761333-25-000008
SEC(opens sec.gov)
Oct 164
Chow Gregory K.0001761333-25-000005
SEC(opens sec.gov)
Jun 24
Chow Gregory K.0001415889-25-015142
SEC(opens sec.gov)
Jan 64
Chow Gregory K.0001567619-21-000611
SEC(opens sec.gov)
Jul 104
Chow Gregory K.0001567619-20-013189
SEC(opens sec.gov)
May 74/A
Chow Gregory K.0001567619-20-009229
SEC(opens sec.gov)
Mar 124
Chow Gregory K.0001567619-20-006195
SEC(opens sec.gov)
Feb 34
Chow Gregory K.0001567619-20-001978
SEC(opens sec.gov)
Jun 74
Chow Gregory K.0001567619-19-013037
SEC(opens sec.gov)
Mar 144
Chow Gregory K.0001567619-19-006894
SEC(opens sec.gov)
Jan 34
Chow Gregory K.0001567619-19-000417
SEC(opens sec.gov)

Companies

Address

C/O SUTRO BIOPHARMA, INC. 111 OYSTER POINT BOULEVARD

SOUTH SAN FRANCISCO, CA, 94080