David Mark McClung - Jun 25, 2021 Form 4 Insider Report for SANGAMO THERAPEUTICS, INC (SGMO)

Role: EVP, Chief Business Officer
Signature: /s/ Matthew Colvin, Attorney-in-Fact for D. Mark McClung
Stock symbol: SGMO
Transactions as of: Jun 25, 2021
Transactions value $: -$138,531
Form type: 4
Date filed: 6/29/2021, 07:55 PM
Next filing: Mar 1, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SGMO	Common Stock	Tax liability	-$139K	-11.5K	-8.18%	$12.02^*	129K	Jun 25, 2021	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares underlying the portion of restricted stock unit ("RSU") grant that vested on June 25, 2021 which were surrendered by the Reporting Person to the Issuer for tax withholding, using the Issuer's closing stock price on June 25, 2021 of $12.02/share, pursuant to the terms of the Issuer's Amended and Restated 2018 Equity Incentive Plan, as amended (the "2018 EIP, as amended").
F2	Includes: (a) 21,805 shares resulting from the June 25, 2021 vesting of the Reporting Person's June 25, 2020 RSU grant and 66,670 shares subject to such RSU grant that will vest in two remaining annual installments on June 25, 2022 and June 25, 2023; (b) 40,000 shares subject to a grant of RSUs to the Reporting Person on February 25, 2021 that will vest in three (3) equal annual installments on each anniversary of the grant date, such that they will be vested in full on the third (3rd) anniversary of the grant date. The vesting of all such RSUs is subject to the Reporting Person's continued service as defined in the 2018 EIP, as amended, through such dates and subject to acceleration as defined in the 2018 EIP, as amended; and (3) 819 shares acquired by the Reporting Person on May 28, 2021 under the Issuer's 2020 Employee Stock Purchase Plan.

Content

Represents shares underlying the portion of restricted stock unit ("RSU") grant that vested on June 25, 2021 which were surrendered by the Reporting Person to the Issuer for tax withholding, using the Issuer's closing stock price on June 25, 2021 of $12.02/share, pursuant to the terms of the Issuer's Amended and Restated 2018 Equity Incentive Plan, as amended (the "2018 EIP, as amended").

Includes: (a) 21,805 shares resulting from the June 25, 2021 vesting of the Reporting Person's June 25, 2020 RSU grant and 66,670 shares subject to such RSU grant that will vest in two remaining annual installments on June 25, 2022 and June 25, 2023; (b) 40,000 shares subject to a grant of RSUs to the Reporting Person on February 25, 2021 that will vest in three (3) equal annual installments on each anniversary of the grant date, such that they will be vested in full on the third (3rd) anniversary of the grant date. The vesting of all such RSUs is subject to the Reporting Person's continued service as defined in the 2018 EIP, as amended, through such dates and subject to acceleration as defined in the 2018 EIP, as amended; and (3) 819 shares acquired by the Reporting Person on May 28, 2021 under the Issuer's 2020 Employee Stock Purchase Plan.