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AMG · Affiliated Managers Group, Inc.
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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475
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AMG

AFFILIATED MANAGERS GROUP, INC.
FINANCIAL SERVICES · INVESTMENT ADVICE · CIK 0001004434
FORM 144 · 1☆ WATCH
INSIDER NET · 180D
-$7.2M
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
2
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
240
13F, latest reported quarter
REVENUE GROWTH
+1.6%
XBRL, annual
NET MARGIN
34.5%
CONVERSIONS · 180D
6
codes C/M, not in net · $5.8M priced
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$7.2M over 180 days
-$5.9M over 90 days
below 74% of Financial Services
CONGRESS
no member of Congress has reported trading it
FUNDS
240 funds added or opened last quarter
more than 83% of Financial Services
REVENUE
+1.6% year over year
below 66% of Financial Services
MARGIN
34.5% net margin
more than 83% of Financial Services
BUYBACKS
$364.8M repurchased, FY to 2026-06-30
more than 81% of Financial Services
SHORT
3.0% of shares outstanding short · 2.7 days to cover · settled 2026-07-31
more than 61% of Financial Services
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
Insiders are net sellers: -$7.2M across 4 people in 180 days.
240 funds added or opened positions in the latest 13F quarter, of 569 holders.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +59.3%
+59.3%12M
+0%+22%+44%+67%2025-092025-102025-122026-032026-052026-072026-09 2026-06-08 · Horgen Jay C. sold $5.9M2025-09-09 · Wojcik Thomas M sold $3.7M2026-03-06 · Wojcik Thomas M sold $2.3M2026-05-06 · Ryan David Christopher sold $1.0M2026-03-09 · Padiyar Kavita sold $612.1K2026-05-06 · Cates G. Staley bought $458.7K2026-05-08 · Matos Rodriguez Felix V. sold $300.2K2026-06-01 · FRANQUI ANNETTE bought $228.7K2026-06-30 · DAVID RYAN filed to sell $104.9K
INSIDER BUYINSIDER SELLFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
Insiders have filed to sell — before selling.
The record shows a net $7.2M sold by insiders over 180 days, 240 funds added last quarter, $104.9K in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
MSTRCOINMORNUPSTIBKRCACCARESHOODRKTSCHWDAVEGS
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, AFFILIATED MANAGERS GROUP, INC. insiders sold a net $7.2M of stock across 20 Form 4 purchases and sales, with 2 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER
FILED
SHARES
VALUE
Horgen Jay C.
President and CEO
SELL
2026-06-08
17,500.0
$5.9M
FRANQUI ANNETTE
Director
BUY
2026-06-01
750.0
$228.7K
Matos Rodriguez Felix V.
Director
SELL
2026-05-08
1,000.0
$300.2K
Ryan David Christopher
Director
SELL
2026-05-06
3,402.0
$1.0M
Cates G. Staley
Director
BUY
2026-05-06
1,500.0
$458.7K
20 TRANSACTIONS ON RECORD

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Institutional holders
13F · holdings as of the latest quarter funds have reported
BlackRock, Inc.
2,772,736.0 sh
$938.3M
MORGAN STANLEY
1,487,219.0 sh
$503.3M
VANGUARD PORTFOLIO MANAGEMENT LLC
1,391,836.0 sh
$471.0M
VANGUARD CAPITAL MANAGEMENT LLC
1,151,085.0 sh
$389.5M
Boston Partners
1,001,967.0 sh
$339.1M
SCHEDULE 13D/G
No 5%+ ownership filings
Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.
Planned sales · Form 144
Filed before the sale — intent, not a trade
DAVID RYAN
FILED 2026-06-30
$104.9K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
Clarkston Fund
$7.7M POSITION · AS OF 2026-03-31
7.9%
Clarkston Partners Fund
$24.3M POSITION · AS OF 2026-03-31
7.8%
Clarkston Founders Fund
$11.9M POSITION · AS OF 2026-03-31
7.3%
Ariel Focus Fund
$3.8M POSITION · AS OF 2026-03-31
4.7%
Castellan Targeted Equity ETF
$22.2M POSITION · AS OF 2026-02-27
4.2%
Ariel Fund
$93.0M POSITION · AS OF 2026-03-31
3.6%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Executive pay vs shareholder return · Mr. Horgen
DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself
FY
CEO TOTAL
ACTUALLY PAID
OTHER NEOs AVG
TSR
PEER TSR
2025
$16.3M
$56.0M
$6.0M
+184%
+55%
2024
$13.0M
$33.5M
$4.7M
+82%
+44%
2023
$14.6M
$4.7M
$5.7M
+49%
+26%
2022
$13.7M
$12.8M
$5.6M
+56%
+8%
2021
$9.1M
$50.6M
$4.0M
+62%
+25%
TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-122022-12
REVENUE$2.1B$2.0B$2.1B$2.3B
NET INCOME$904.0M$740.6M$906.1M$1.4B
EPS (DILUTED)22.7415.1317.4225.35
OPERATING CASH FLOW$973.2M$932.1M$874.3M$1.1B
CASH$586.0M$950.0M$813.6M$429.2M
LONG-TERM DEBT$2.7B$2.6B$2.5B$2.5B
BUYBACKS$706.3M$709.8M$341.9M$713.8M
DIVIDENDS PAID$1.0M$1.4M$1.5M$1.6M
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

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