Carsten Brunn - Sep 1, 2021 Form 4 Insider Report for SELECTA BIOSCIENCES INC (SELB)

Role
President and CEO, Director
Signature
/s/ Matthew Bartholomae, Attorney-in-Fact for Carsten Brunn
Stock symbol
SELB
Transactions as of
Sep 1, 2021
Transactions value $
-$20,399
Form type
4
Date filed
9/3/2021, 04:18 PM
Previous filing
Jun 3, 2021
Next filing
Sep 28, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SELB Common Stock Options Exercise $0 +10.9K +4.91% $0.00 234K Sep 1, 2021 Direct
transaction SELB Common Stock Sale -$20.4K -4.52K -1.93% $4.51 229K Sep 2, 2021 Direct F1, F2

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 Restricted Stock Units Options Exercise $0 -10.9K -16.67% $0.00 54.7K Sep 1, 2021 Common Stock 10.9K Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares sold to satisfy withholding tax obligations upon the vesting of restricted stock units and to cover related broker fees.
F2 The price reported is a weighted average price. The shares were sold in multiple transactions at per share prices ranging from $4.4707 to $4.57. The Reporting Person undertakes to provide upon request to the SEC staff, the Issuer, or any stockholder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3 Each restricted stock unit represents a contingent right to receive one share of common stock.
F4 This restricted stock unit vested as to 25% on December 1, 2019 and has vested, and will continue to vest, as to an additional 8.33% each quarter thereafter until fully vested. The restricted stock units have no expiration date.