Peter G. Traber - Sep 24, 2021 Form 4 Insider Report for SELECTA BIOSCIENCES INC (SELB)

Signature
/s/ Matthew Bartholomae, Attorney-in-Fact for Peter G. Traber
Stock symbol
SELB
Transactions as of
Sep 24, 2021
Transactions value $
$0
Form type
4
Date filed
9/28/2021, 04:32 PM
Previous filing
May 27, 2021
Next filing
Oct 5, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SELB Common Stock Award $0 +9.1K +6.72% $0.00 145K Sep 24, 2021 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SELB Employee Stock Option (right to buy) Award $0 +54.4K $0.00 54.4K Sep 24, 2021 Common Stock 54.4K $4.32 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Restricted Stock Unit represents a contingent right to receive one share of common stock, which will vest as to 25% on September 24, 2022. The remainder of the underlying shares will vest in three equalannual installments thereafter so that the underlying shares will be fully vested on September 24, 2025.
F2 This option vests as to 25% on September 24, 2022. The remainder of the underlying shares will vest in 36 equal monthly installments thereafter.