SEC ownership of OMNICOM GROUP INC.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000029989.

Comparable stake leader

STATE STREET CORP

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

01 Oct 2026

Top shareholders Insider holders Latest transactions
Public ticker
OMC on NYSE
Parsed ownership sources
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
STATE STREET CORP
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
STATE STREET CORP
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
01 Oct 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000029989
Issuer location
New York, NY

Ownership snapshot

Top shareholders of OMNICOM GROUP INC. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
STATE STREET CORP
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Oct 2026
13D/G 13F 3/4/5 Lead comparable stake: 8.6% 13D/G row: STATE STREET CORP Showing 1-8 of 50 holder rows.

Quick read

STATE STREET CORP leads the comparable SEC ownership view at 8.6%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens STATE STREET CORP's linked filing trail.
Comparable ownership Top 5
STATE STREET CORP 8.6%
VANGUARD CAPITAL MANAGEMENT LLC 8.2%
VANGUARD PORTFOLIO MANAGEMENT LLC 4.7%
WELLINGTON MANAGEMENT GROUP LLP 2.3%
Leonard S. Coleman Jr. 0.02%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
STATE STREET CORP
13D/G 13F
STATE STREET CORPORATION · Company
13D/G 13F
8.6%
$1,988,866,445
24,605,548 shares
 -$255,820,160 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
13D/G 13F
8.2%
$1,770,030,661
23,503,262 shares
 $0 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G 13F
Vanguard Portfolio Management · Company
13D/G 13F
4.7%
$1,092,016,533
13,510,040 shares
 -$110,591,848 30 Jun 2026
WELLINGTON MANAGEMENT GROUP LLP
13D/G 13F
Company
13D/G 13F
2.3%
$342,277,281
4,481,829 shares
 $0 31 Mar 2025
Leonard S. Coleman Jr.
3/4/5
Director
3/4/5
0.02%
$3,740,659
51,362 shares
 — 01 Oct 2026
Mary C. Choksi
3/4/5
Director
3/4/5
0.02%
$3,575,430
49,093 shares
 — 01 Oct 2026
Louis F. Januzzi
3/4/5
Senior VP, Gen. Counsel & Sec.
3/4/5
0.01%
$2,881,042
39,558 shares
 — 15 Aug 2026
Gracia C. Martore
3/4/5
Director
3/4/5
0.01%
$2,137,891
29,355 shares
 — 01 Oct 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$237,801.

Buys
$0
Insiders: 0
Sells
$237,801
Insiders: 1
Net
-$237,801
Shares: -2,733
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 2,733
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 1,385 $0 $122,891 -$122,891
3-6 0 0 $0 $0 $0
6-9 0 1,348 $0 $114,910 -$114,910
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 23 reporting-owner rows connected to OMNICOM GROUP INC.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
23
Largest Forms 3/4/5 holder
John D. Wren
Net 12M change
-$237,801
Latest report
01 Oct 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
John D. Wren Chairman and CEO, Director $105,583,866 Mixed 22 May 2026
Philip J. Angelastro Executive Vice President & CFO $40,981,140 Mixed 22 May 2026
Daryl Simm Co-President and Co-COO $18,270,716 Mixed 15 Aug 2026
Michael J. Obrien EVP, Gen. Counsel & Sec. $10,188,047 Mixed 15 Aug 2022
Jonathan B. Nelson CEO, Omnicom Digital $9,393,442 Mixed 15 Aug 2023
Philippe Krakowsky Co-President and Co-COO, Director $7,827,639 Mixed 26 Nov 2025
Susan S. Denison Director $4,254,856 Mixed 01 Apr 2022
Leonard S. Coleman Jr. Director $3,740,659 Mixed 01 Oct 2026
Mary C. Choksi Director $3,575,430 Mixed 01 Oct 2026
Rochelle M. Tarlowe Senior VP and Treasurer $3,446,004 Mixed 26 Aug 2024
Louis F. Januzzi Senior VP, Gen. Counsel & Sec. $2,881,042 Mixed 15 Aug 2026
Gracia C. Martore Director $2,137,891 Mixed 01 Oct 2026
Deborah J. Kissire Director $2,088,998 Mixed 01 Oct 2026
Valerie Williams Director $1,990,221 Mixed 01 Oct 2026
Patrick Q. Moore Director $1,835,170 Mixed 01 Oct 2026
E. Lee Wyatt Jr. Director $1,835,170 Mixed 01 Oct 2026
Ronnie S. Hawkins Director $1,661,462 Mixed 01 Oct 2026
Andrew Castellaneta SVP, Chief Accounting Officer $1,514,499 Mixed 15 Aug 2026
Mark D. Gerstein Director $1,273,434 Mixed 01 Oct 2026
Linda Johnson Rice Director $911,939 -$237,801 -21% Mixed 01 Oct 2026

Recent insider transactions for OMNICOM GROUP INC.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
E. Lee Wyatt Jr. OMC Common Stock, par value $0.15 per share Award 2.84% 697 25,198 01 Oct 2026 Direct
Valerie Williams OMC Common Stock, par value $0.15 per share Award 2.61% 696 27,327 01 Oct 2026 Direct
Cassandra Santos OMC Common Stock, par value $0.15 per share Award 10.5% 696 7,311 01 Oct 2026 Direct
Linda Johnson Rice OMC Common Stock, par value $0.15 per share Award 5.89% 697 12,521 01 Oct 2026 Direct
Patricia Salas Pineda OMC Common Stock, par value $0.15 per share Award 6.08% 696 12,145 01 Oct 2026 Direct
Patrick Q. Moore OMC Common Stock, par value $0.15 per share Award 2.84% 697 25,198 01 Oct 2026 Direct
Gracia C. Martore OMC Common Stock, par value $0.15 per share Award 2.43% 696 29,355 01 Oct 2026 Direct
Deborah J. Kissire OMC Common Stock, par value $0.15 per share Award 2.49% 696 28,683 01 Oct 2026 Direct
Ronnie S. Hawkins OMC Common Stock, par value $0.15 per share Award 3.15% 696 22,813 01 Oct 2026 Direct
Mark D. Gerstein OMC Common Stock, par value $0.15 per share Award 6.08% 1,002 17,485 01 Oct 2026 Direct
Leonard S. Coleman Jr. OMC Common Stock, par value $0.15 per share Award 1.37% 696 51,362 01 Oct 2026 Direct
Mary C. Choksi OMC Common Stock, par value $0.15 per share Award 1.44% 696 49,093 01 Oct 2026 Direct
Linda Johnson Rice OMC Common Stock, par value $0.15 per share Sale -10.6% $122,891 $88.73 -1,385 11,719 24 Aug 2026 Direct
Daryl Simm OMC Common Stock, par value $0.15 per share Tax liability -1.25% -3,172 250,868 15 Aug 2026 Direct
Louis F. Januzzi OMC Common Stock, par value $0.15 per share Tax liability -3.2% -1,308 39,558 15 Aug 2026 Direct
Andrew Castellaneta OMC Common Stock, par value $0.15 per share Tax liability -6.09% -1,348 20,795 15 Aug 2026 Direct
Louis F. Januzzi OMC Common Stock, par value $0.15 per share Award 23.3% 7,720 40,866 16 Jul 2026 Direct
Patrick Q. Moore OMC Common Stock, par value $0.15 per share Award 2.96% 704 24,501 01 Jul 2026 Direct
E. Lee Wyatt Jr. OMC Common Stock, par value $0.15 per share Award 2.96% 704 24,501 01 Jul 2026 Direct
Cassandra Santos OMC Common Stock, par value $0.15 per share Award 12% 704 6,576 01 Jul 2026 Direct
Mark D. Gerstein OMC Common Stock, par value $0.15 per share Award 6.61% 1,013 16,332 01 Jul 2026 Direct
Leonard S. Coleman Jr. OMC Common Stock, par value $0.15 per share Award 1.42% 704 50,336 01 Jul 2026 Direct
Deborah J. Kissire OMC Common Stock, par value $0.15 per share Award 2.6% 704 27,720 01 Jul 2026 Direct
Gracia C. Martore OMC Common Stock, par value $0.15 per share Award 2.54% 704 28,410 01 Jul 2026 Direct
Linda Johnson Rice OMC Common Stock, par value $0.15 per share Award 5.68% 704 13,104 01 Jul 2026 Direct
Ronnie S. Hawkins OMC Common Stock, par value $0.15 per share Award 3.31% 704 21,978 01 Jul 2026 Direct
Valerie Williams OMC Common Stock, par value $0.15 per share Award 2.74% 704 26,377 01 Jul 2026 Direct
Patricia Salas Pineda OMC Common Stock, par value $0.15 per share Award 6.61% 704 11,346 01 Jul 2026 Direct
Mary C. Choksi OMC Common Stock, par value $0.15 per share Award 1.49% 704 47,929 01 Jul 2026 Direct
John D. Wren OMC Common Stock, par value $0.15 per share Tax liability -13.3% -38,767 253,001 22 May 2026 Direct
John D. Wren OMC Common Stock, par value $0.15 per share Award 35.2% 75,938 291,768 22 May 2026 Direct
Daryl Simm OMC Common Stock, par value $0.15 per share Tax liability -8.28% -22,931 254,040 22 May 2026 Direct
Daryl Simm OMC Common Stock, par value $0.15 per share Award 24.4% 54,242 276,971 22 May 2026 Direct
Philip J. Angelastro OMC Common Stock, par value $0.15 per share Tax liability -4.39% -24,922 542,396 22 May 2026 Direct
Philip J. Angelastro OMC Common Stock, par value $0.15 per share Award 9.42% 48,818 567,318 22 May 2026 Direct
John D. Wren OMC Common Stock, par value $0.15 per share Tax liability -2% -4,397 215,830 15 May 2026 Direct
Daryl Simm OMC Common Stock, par value $0.15 per share Tax liability -1.75% -3,969 222,729 15 May 2026 Direct
Louis F. Januzzi OMC Common Stock, par value $0.15 per share Tax liability -5.28% -1,849 33,146 15 May 2026 Direct
Philip J. Angelastro OMC Common Stock, par value $0.15 per share Tax liability -0.86% -4,476 518,500 15 May 2026 Direct
Patricia Salas Pineda OMC Common Stock, par value $0.15 per share Award 6.9% 681 10,540 01 Apr 2026 Direct
Valerie Williams OMC Common Stock, par value $0.15 per share Award 2.75% 681 25,409 01 Apr 2026 Direct
Cassandra Santos OMC Common Stock, par value $0.15 per share Award 13.2% 681 5,837 01 Apr 2026 Direct
Leonard S. Coleman Jr. OMC Common Stock, par value $0.15 per share Award 1.4% 681 49,287 01 Apr 2026 Direct
Patrick Q. Moore OMC Common Stock, par value $0.15 per share Award 2.95% 681 23,797 01 Apr 2026 Direct
Ronnie S. Hawkins OMC Common Stock, par value $0.15 per share Award 3.33% 681 21,134 01 Apr 2026 Direct
Linda Johnson Rice OMC Common Stock, par value $0.15 per share Award 5.87% 681 12,288 01 Apr 2026 Direct
Mary C. Choksi OMC Common Stock, par value $0.15 per share Award 1.48% 681 46,734 01 Apr 2026 Direct
Gracia C. Martore OMC Common Stock, par value $0.15 per share Award 2.54% 681 27,448 01 Apr 2026 Direct
Mark D. Gerstein OMC Common Stock, par value $0.15 per share Award 6.9% 979 15,168 01 Apr 2026 Direct
Deborah J. Kissire OMC Common Stock, par value $0.15 per share Award 2.61% 681 26,738 01 Apr 2026 Direct
* marks a reported price that did not pass the local price check.
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