OMNICOM GROUP INC

Ticker: OMC CUSIP: 681919106 Class: COM

ANCHOR CAPITAL ADVISORS LLC's Holding History (CIK: 0000813933)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018

Shares 23,548 Value ($000) $1,602 Avg Close $53.66 Range $50.55 - $59.90

Q2 2018

Shares 290,116 Value ($000) $22,127 Avg Close $56.08 Range $52.42 - $59.08

Q1 2018

Shares 316,666 Value ($000) $23,012 Avg Close $56.50 Range $52.38 - $62.67

Q4 2017

Shares 302,010 Value ($000) $21,995 Avg Close $53.58 Range $48.73 - $58.71

Q3 2017

Shares 301,059 Value ($000) $22,299 Avg Close $57.11 Range $53.04 - $61.93

Q2 2017

Shares 358,474 Value ($000) $29,717 Avg Close $61.42 Range $58.73 - $63.77

Q1 2017

Shares 377,051 Value ($000) $32,506 Avg Close $62.46 Range $61.24 - $63.88

Q4 2016

Shares 385,227 Value ($000) $32,787 Avg Close $60.96 Range $57.12 - $65.10

Q3 2016

Shares 473,519 Value ($000) $40,249 Avg Close $60.52 Range $57.66 - $63.12

Q2 2016

Shares 707,352 Value ($000) $57,642 Avg Close $59.65 Range $54.54 - $61.60

Q1 2016

Shares 737,488 Value ($000) $61,381 Avg Close $53.77 Range $47.34 - $60.37

Q4 2015

Shares 776,232 Value ($000) $58,730 Avg Close $52.01 Range $45.58 - $55.24

Q3 2015

Shares 801,786 Value ($000) $52,838 Avg Close $49.25 Range $45.16 - $52.36

Q2 2015

Shares 572,924 Value ($000) $39,812 Avg Close $52.75 Range $48.47 - $55.29

Q1 2015

Shares 581,270 Value ($000) $45,327 Avg Close $53.02 Range $49.88 - $56.12

Q4 2014

Shares 637,261 Value ($000) $49,369 Avg Close $50.26 Range $44.08 - $54.31

Q3 2014

Shares 663,523 Value ($000) $45,690 Avg Close $48.82 Range $47.04 - $50.68

Q2 2014

Shares 711,241 Value ($000) $50,655 Avg Close $47.35 Range $44.41 - $49.44

Q1 2014

Shares 748,409 Value ($000) $54,334 Avg Close $49.73 Range $47.66 - $52.06

Q4 2013

Shares 768,391 Value ($000) $57,145 Avg Close $46.21 Range $41.19 - $50.30

Q3 2013

Shares 810,837 Value ($000) $51,439 Avg Close $42.52 Range $39.83 - $47.04

Q2 2013

Shares 1,289,318 Value ($000) $81,059 Avg Close $40.69 Range $38.27 - $42.87

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	23,548	$1,602	$53.66	$50.55 - $59.90
Q2 2018	290,116	$22,127	$56.08	$52.42 - $59.08
Q1 2018	316,666	$23,012	$56.50	$52.38 - $62.67
Q4 2017	302,010	$21,995	$53.58	$48.73 - $58.71
Q3 2017	301,059	$22,299	$57.11	$53.04 - $61.93
Q2 2017	358,474	$29,717	$61.42	$58.73 - $63.77
Q1 2017	377,051	$32,506	$62.46	$61.24 - $63.88
Q4 2016	385,227	$32,787	$60.96	$57.12 - $65.10
Q3 2016	473,519	$40,249	$60.52	$57.66 - $63.12
Q2 2016	707,352	$57,642	$59.65	$54.54 - $61.60
Q1 2016	737,488	$61,381	$53.77	$47.34 - $60.37
Q4 2015	776,232	$58,730	$52.01	$45.58 - $55.24
Q3 2015	801,786	$52,838	$49.25	$45.16 - $52.36
Q2 2015	572,924	$39,812	$52.75	$48.47 - $55.29
Q1 2015	581,270	$45,327	$53.02	$49.88 - $56.12
Q4 2014	637,261	$49,369	$50.26	$44.08 - $54.31
Q3 2014	663,523	$45,690	$48.82	$47.04 - $50.68
Q2 2014	711,241	$50,655	$47.35	$44.41 - $49.44
Q1 2014	748,409	$54,334	$49.73	$47.66 - $52.06
Q4 2013	768,391	$57,145	$46.21	$41.19 - $50.30
Q3 2013	810,837	$51,439	$42.52	$39.83 - $47.04
Q2 2013	1,289,318	$81,059	$40.69	$38.27 - $42.87