X0306 4 2021-06-01 0 0001129260 VOCERA COMMUNICATIONS, INC. VCRA 0001590488 JOHNSON PAUL T C/O VOCERA COMMUNICATIONS, INC. 525 RACE STREET SAN JOSE CA 95126 0 1 0 0 EVP Sales and Services Common Stock 2021-06-01 4 F 0 19336 D 111500 D Exempt transaction pursuant to Section 16b-3(e) - Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and withheld by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of shares of restricted stock units. The Reporting Person did not sell or otherwise dispose of any of the shares reported on this Form 4 for any reason other than to cover required taxes. Includes 320 shares of Common Stock acquired under the Issuer's employee stock purchase plan on May 14, 2021. /s/ Douglas Carlen on behalf of Paul Johnson 2021-06-03