Saia John G. 4

4 · Guardant Health, Inc. · Filed Mar 17, 2026

AI-generated summary of this filing

Updated Mar 17, 2026

Guardant Health (GH) CLO John Saia Receives RSUs; Company Withholds Shares

What Happened

John G. Saia, Chief Legal Officer of Guardant Health (GH), received vested restricted stock units (RSUs) on March 15, 2026. A total of 8,811 shares converted to common stock (7,792 + 1,019). The company withheld 4,622 of those shares to satisfy tax withholding obligations, generating proceeds of $395,135 (4,622 @ $85.49). The RSUs show $0 exercise price because they were restricted stock units converting into shares.

Key Details

Transaction date: March 15, 2026; Form 4 filed March 17, 2026 (filed within the required reporting window).
Conversion lines coded M = exercise/conversion of derivative (RSU → common shares); withholding coded F = tax withholding/payment of tax liability.
Shares vested: 7,792 (performance-based RSU) and 1,019 (time-based RSU) per footnotes. Total vested = 8,811.
Shares withheld for taxes: 4,622 at $85.49 each, proceeds = $395,135. Net shares delivered to Saia: 8,811 − 4,622 = 4,189.
Footnotes: F1 confirms shares were retained by the company only to meet tax withholding and not in excess; F2 describes the performance RSU (granted June 7, 2023) whose second tranche vested March 15, 2026; F4 describes the time-based RSU grant (June 9, 2023) and its vesting schedule.
Shares owned after the transaction: not disclosed in the filing.

Context

This was an RSU vesting event with stock withheld for tax purposes (a common, routine transaction), not an open-market sale or purchase. The conversion at $0 reflects RSUs settling into shares; the withholding is effectively a cashless tax payment handled by the company. No 10b5-1 plan or gift was reported.

Form 4

Period: 2026-03-15

Chief Legal Officer

Transactions

Exercise/Conversion
Common Stock
2026-03-15+7,792→ 60,506 total
Exercise/Conversion
Common Stock
2026-03-15+1,019→ 61,525 total
Tax Payment
Common Stock
[F1]
2026-03-15$85.49/sh−4,622$395,135→ 56,903 total
Exercise/Conversion
Performance-Based Restricted Stock Units
[F2][F3]
2026-03-15−7,792→ 0 total
Exercise: $0.00→ Common Stock (7,792 underlying)
Exercise/Conversion
Restricted Stock Units
[F4][F3]
2026-03-15−1,019→ 1,020 total
Exercise: $0.00→ Common Stock (1,019 underlying)

Footnotes (4)

[F1]These shares were retained by the Company in order to meet the tax withholding obligations of the award-holder in connection with the vesting of an installment of the restricted stock units. The amount retained by the Company was not in excess of the amount of the tax liability.
[F2]This represents a performance-based restricted stock unit award granted on June 7, 2023 with a 3-year performance metric. The second tranche metric was achieved and the shares vested on March 15, 2026.
[F3]Not applicable for Restricted Stock Units.
[F4]This represents a restricted stock unit award granted on June 9, 2023 that vests over a three-year period. 33% of the shares subject to such award vested on June 15, 2024 and the remaining 67% of the shares vests in equal quarterly installments over the remaining two-year period thereafter.

Signature

/s/ John G. Saia|2026-03-17

1 file