COMSCORE, INC. — Director's Dealing 2010

Aug 13, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COMSCORE, INC. (SCOR)
CIK: 0001158172
Period of Report: 2010-08-11

Reporting Person: SWARTZ JAMES R (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-08-11	Common Stock	J	1074320	—	Disposed	3222962	Indirect
2010-08-11	Common Stock	J	268580	—	Disposed	805741	Indirect
2010-08-11	Common Stock	J	3581	—	Acquired	3581	Indirect
2010-08-11	Common Stock	J	132814	—	Disposed	398442	Indirect
2010-08-11	Common Stock	J	193	—	Acquired	193	Indirect
2010-08-11	Common Stock	J	7571	—	Acquired	7571	Indirect
2010-08-11	Common Stock	J	14756	—	Acquired	14756	Direct

Footnotes

F1: Accel VII Associates L.L.C. ("A7A") is the General Partner of Accel VII L.P. ("A7") and has the sole voting and investment power. James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, James R. Swartz, and J. Peter Wagner are the Managing Members of A7A and share such powers.

F2: Accel Internet Fund III Associates L.L.C. is the General Partner of Accel Internet Fund III L.P. and has the sole voting and investment power. James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, James R. Swartz, and J. Peter Wagner are the Managing Members of A7A and share such powers.

F3: James W. Breyer, Arthur C. Patterson, Theresia Gouw Ranzetta, James R. Swartz, and J. Peter Wagner are the General Partners of Accel Investors '99 L.P. and therefore share the voting and investment powers.

F4: Each general partner or managing member disclaims beneficial ownership except to the extent of their pecuniary interest therein.

F5: These shares were transferred without additional consideration to partners in pro rata distributions pursuant to the partnership agreement of Accel VII L.P.

F6: These shares were transferred without additional consideration to partners in pro rata distributions pursuant to the partnership agreement of Accel Internet Fund III L.P.

F7: These shares were transferred without additional consideration to partners in pro rata distributions pursuant to the partnership agreement of Accel Investors '99 L.P.

F8: James R. Swartz is manager of Burn3 LLC and general partner of Homestake Partners L.P.