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Affiliated Managers Group, Inc. logo

Affiliated Managers Group, Inc. (MGRE) shareholders

MGRENYSEInvestment AdviceFiscal year ends December 31Also trades as AMG, MGR, MGRB, MGRD
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026Score 15/307% below fair value
$21.05−0.02 (-0.09%)

Close on Oct 30, 2026Market cap $566.25MP/E 0.7Yield 0.19%

Ownership

Who owns Affiliated Managers's shares

Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
2 buys · 5 sales
Net sold $9.47M

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
BlackRock, Inc.3,241,58810.20%13G (passive) amendmentMay 31, 2024
Israel A. Englander
Joint filing with Millennium Management LLC (5.30%), Millennium Group Management LLC (5.30%) and 1 more
1,506,1045.30%13G (passive)Jun 2, 2025
Morgan Stanley1,458,3795.50%13G (passive) amendmentJun 30, 2026
Vanguard Capital Management1,386,7445.19%13G (passive)Mar 31, 2026
Vanguard Portfolio Management1,368,4305.12%13G (passive)Mar 31, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares ownedLatest filing
Jay C. HorgenPresident and CEO, Director606,264Jun 8, 2026
Cheerag B. PatelHead of Affiliate Engagement39,659Jun 26, 2026
Kavita PadiyarGeneral Counsel & Corp. Sec.42,672Mar 9, 2026
Dava RitcheaChief Financial Officer309Mar 9, 2026
Thomas M. WojcikPresident and COO159,465Mar 9, 2026
Rodriguez Felix V. MatosDirector5,217Sep 25, 2026
Loren M. StarrDirector2,653Aug 18, 2026
Tracy P. PalandjianDirector18,375Aug 18, 2026
Annette FranquiDirector2,439Aug 18, 2026
G. Staley CatesDirector6,405Aug 3, 2026
Marcy EngelDirector–Aug 3, 2026
David Christopher RyanDirector1,092May 8, 2026
Karen L. AlvinghamDirector13,043Mar 9, 2026
Dwight D. ChurchillDirector29,030Aug 18, 2025
Reuben Jeffery IIIDirector34,274Jan 3, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Rodriguez Felix V. Matos
Director
Aug 15, 2026Option exercise+848––5,217
Loren M. Starr
Director
Aug 15, 2026Option exercise+716––2,653
Annette Franqui
Director
Aug 15, 2026Option exercise+477––2,439
Tracy P. Palandjian
Director
Aug 15, 2026Option exercise+848––18,375
Rodriguez Felix V. Matos
Director
Aug 15, 2026Option exercise+654––5,023
Tracy P. Palandjian
Director
Jun 12, 2026Option exercise+2,958$82.07$242.76K18,212
Tracy P. Palandjian
Director
Jun 12, 2026Tax withholding−685$354.62$242.91K17,527
Jay C. Horgen
President and CEO, Director
Jun 8, 2026Tax withholding−39,671$336.62$13.35M222,206
Jay C. Horgen
President and CEO, Director
Jun 8, 2026Option exercise+75,000$74.49$5.59M261,877
Jay C. Horgen
President and CEO, Director
Jun 8, 2026Sale−17,500$338.27$5.92M204,706
Annette Franqui
Director
Jun 1, 2026Buy+750$304.88$228.66K1,962
Rodriguez Felix V. Matos
Director
May 8, 2026Sale−1,000$300.18$300.18K4,369
David Christopher Ryan
Director
May 6, 2026Sale−3,402$305.06$1.04M1,092
G. Staley Cates
Director
May 6, 2026Buy+1,500$305.83$458.75K6,405
Kavita Padiyar
General Counsel & Corp. Sec.
Mar 9, 2026Sale−2,200$278.24$612.13K42,672
Thomas M. Wojcik
President and COO
Mar 6, 2026Sale−8,000$286.30$2.29M159,465
David Christopher Ryan
Director
Mar 5, 2026Option exercise+867––4,494
Tracy P. Palandjian
Director
Mar 5, 2026Option exercise+867––15,254
Rodriguez Felix V. Matos
Director
Mar 5, 2026Option exercise+867––5,369
Thomas M. Wojcik
President and COO
Mar 5, 2026Tax withholding−9,136$299.18$2.73M167,465
Thomas M. Wojcik
President and COO
Mar 5, 2026Award+10,619––176,601
Thomas M. Wojcik
President and COO
Mar 5, 2026Option exercise+7,272––165,982
Kavita Padiyar
General Counsel & Corp. Sec.
Mar 5, 2026Tax withholding−2,282$299.18$682.73K44,872
Kavita Padiyar
General Counsel & Corp. Sec.
Mar 5, 2026Option exercise+2,288––44,728
Kavita Padiyar
General Counsel & Corp. Sec.
Mar 5, 2026Award+2,426––47,154
Loren M. Starr
Director
Mar 5, 2026Option exercise+652––1,937
Karen L. Alvingham
Director
Mar 5, 2026Tax withholding−67$299.18$20.05K13,043
Karen L. Alvingham
Director
Mar 5, 2026Option exercise+867––13,110
Dava Ritchea
Chief Financial Officer
Mar 5, 2026Tax withholding−292$299.18$87.36K309
Dava Ritchea
Chief Financial Officer
Mar 5, 2026Option exercise+601––601
Jay C. Horgen
Chief Executive Officer, Director
Mar 5, 2026Option exercise+17,563––327,950
Jay C. Horgen
Chief Executive Officer, Director
Mar 5, 2026Award+27,260––355,210
Jay C. Horgen
Chief Executive Officer, Director
Mar 5, 2026Tax withholding−18,333$299.18$5.48M336,877
Annette Franqui
Director
Mar 5, 2026Option exercise+548––1,212
Jay C. Horgen
Chief Executive Officer, Director
Dec 23, 2025Gift−4,000––510,387
Tracy P. Palandjian
Director
Nov 25, 2025Gift−3,499––14,387
Karen L. Alvingham
Director
Nov 7, 2025Option exercise+560$69.63$38.99K12,425
Karen L. Alvingham
Director
Nov 7, 2025Tax withholding−182$259.26$47.19K12,243
Thomas M. Wojcik
President and COO
Sep 9, 2025Sale−16,000$231.03$3.70M158,710
Thomas M. Wojcik
President and COO
Sep 8, 2025Option exercise+169,303$74.49$12.61M288,718
Thomas M. Wojcik
President and COO
Sep 8, 2025Tax withholding−114,008$231.19$26.36M174,710
Jay C. Horgen
Chief Executive Officer, Director
Sep 2, 2025Tax withholding−44,935$229.97$10.33M514,387
Jay C. Horgen
Chief Executive Officer, Director
Sep 2, 2025Option exercise+75,000$74.49$5.59M559,322
Kavita Padiyar
General Counsel & Corp. Sec.
Sep 2, 2025Tax withholding−30,991$229.97$7.13M42,440
Kavita Padiyar
General Counsel & Corp. Sec.
Sep 2, 2025Option exercise+47,731$73.81$3.52M73,431
David Christopher Ryan
Director
Aug 15, 2025Option exercise+1,092––3,627
Rodriguez Felix V. Matos
Director
Aug 15, 2025Option exercise+1,102––4,502
Annette Franqui
Director
Aug 15, 2025Option exercise+664––664
Karen L. Alvingham
Director
Aug 15, 2025Option exercise+1,092––11,949
Karen L. Alvingham
Director
Aug 15, 2025Tax withholding−84$218.70$18.37K11,865
Tracy P. Palandjian
Director
Aug 15, 2025Option exercise+1,117––17,886
Loren M. Starr
Director
Aug 15, 2025Option exercise+544––1,285
Dwight D. Churchill
Director
Aug 15, 2025Option exercise+1,398––29,030
Jay C. Horgen
Chief Executive Officer, Director
Aug 12, 2025Option exercise+75,000$74.49$5.59M529,929
Jay C. Horgen
Chief Executive Officer, Director
Aug 12, 2025Tax withholding−45,607$219.70$10.02M484,322
Jay C. Horgen
Chief Executive Officer, Director
Jul 2, 2025Gift+14,000––34,058
Jay C. Horgen
Chief Executive Officer, Director
Jul 2, 2025Gift−14,000––454,929
Jay C. Horgen
Chief Executive Officer, Director
Jul 1, 2025Option exercise+75,000$74.49$5.59M516,120
Jay C. Horgen
Chief Executive Officer, Director
Jul 1, 2025Tax withholding−47,191$198.72$9.38M468,929
Tracy P. Palandjian
Director
May 12, 2025Option exercise+1,361$86.78$118.11K19,660

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Short interest

Shares sold short and not yet bought back, as of Oct 15, 2026 (FINRA, reported twice a month)

Short % of shares outstanding
–
0M shares short
Days to cover
1.0
At 0M shares a day
Change since last report
+99.9%
From 0M shares
Short volume, 20 days
47.3%
Of volume reported to FINRA

Shares sold short, last 12 months

Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Affiliated Managers's stock actually held short. Settlement fails (shares not delivered on time) peaked at 346 shares on Sep 8, 2026 over the last 90 days.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
David Christopher Ryan
Director
Jun 30, 2026305$104.93KJun 30, 2026Exercise of Options Under a Registered Plan
Jay C. Horgen
Officer
Jun 8, 202617,500$5.92MJun 8, 2026Restricted Stock Vesting Under a Registered Plan
Rodriguez Felix V. Matos
Director
May 8, 20261,000$300.18KMay 8, 2026Restricted stock vesting under a registered plan
David Christopher Ryan
Director
May 6, 20263,402$1.04MMay 6, 2026Restricted stock vesting under a registered plan
Thomas M. Wojcik
Officer
Mar 9, 202646,878$13.08MMar 9, 2026Stock Award
Kavita Padiyar
Officer
Mar 9, 20262,200$612.12KMar 9, 2026Restricted stock vesting under a registered plan
Thomas M. Wojcik
Officer
Mar 6, 20268,000$2.29MMar 6, 2026Restricted stock vesting under a registered plan
Thomas M. Wojcik
Officer
Sep 9, 202516,000$3.70MSep 9, 2025Exercise of options under a registered plan
Rizwan M. Jamal
Former Officer
Mar 10, 202514,669$2.30MMar 10, 2025Transfer to Rizwan M. Jamal Revocable Trust
Jay C. Horgen
Officer
Aug 19, 202418,300$3.16MAug 19, 2024Stock Award
Thomas M. Wojcik
Officer
Aug 16, 20244,786$820.70KAug 16, 2024Stock Award
Rizwan M. Jamal
Affiliate
Aug 16, 20248,622$1.48MAug 16, 2024RSU vesting