NYSE · CIK 0001004434
AMG AFFILIATED MANAGERS GROUP, INC.
Insider trading from SEC Form 4. Last filing 17 d ago. Close $387.26 on Oct 9, 2026, +68% from the 52-week low and 0% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
13
with a Form 4 at this company
Price and insider trades, last year
AMGOct 9, 2026 · close 387.26
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at AFFILIATED MANAGERS GROUP, INC., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 35Weak | Jay C. Horgen President and CEO sell | $5.9M 17,500 shares | -8% | +85% from low-0% from high | |
| 38Weak | Annette Franqui director buy | $229k 750 shares | +62% | +68% from low-9% from high | |
| 68Notable | David Christopher Ryan director sell | $1.0M 3,402 shares | -76% | +77% from low-7% from high | |
| 42Moderate | Rodriguez Felix V. Matos director sell | $300k 1,000 shares | -19% | +74% from low-8% from high | |
| 38Weak | G. Staley Cates director buy | $459k 1,500 shares | +31% | +77% from low-7% from high | |
| 28Weak | Kavita Padiyar General Counsel & Corp. Sec. sell | $612k 2,200 shares | -5% | +96% from low-15% from high | |
| 48Moderate | Thomas M Wojcik President and COO sell | $2.3M 8,000 shares | -5% | +99% from low-14% from high | |
| 30Weak | Thomas M Wojcik President and COO sell | $3.7M 16,000 shares | -9% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Mar 10, 2025 | Rizwan M. Jamal Former Officer | 14,669 0.05% of outstanding | $2.3M | Mar 10, 2025 | none |
Transactions
The last 100 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 15, 2026 | Rodriguez Felix V. Matos director | MOption exercise Common Stock | +848 | $0.00 | $0 | 5,217 | 17 d ago |
| Aug 15, 2026 | Rodriguez Felix V. Matos director | MOption exercise Stock Unitsderivative | -848 | $0.00 | $0 | 933 | 17 d ago |
| Jun 12, 2026 | Tracy P. Palandjian director | MOption exercise Common Stock | +2,958 | $82.07 | $243k | 18,212 | Jun 15, 2026 |
| Jun 12, 2026 | Tracy P. Palandjian director | FTax withholding Common Stock | -685 | $354.62 | $243k | 17,527 | Jun 15, 2026 |
| Jun 12, 2026 | Tracy P. Palandjian director | MOption exercise Director Stock Option (Right to Buy)derivative | -2,958 | $0.00 | $0 | 0 | Jun 15, 2026 |
| Jun 8, 2026 | Jay C. Horgen President and CEO | MOption exercise Common Stock | +75,000 | $74.49 | $5.6M | 261,877 | Jun 8, 2026 |
| Jun 8, 2026 | Jay C. Horgen President and CEO | FTax withholding Common Stock | -39,671 | $336.62 | $13M | 222,206 | Jun 8, 2026 |
| Jun 8, 2026 | Jay C. Horgen President and CEO | SOpen-market sale Common Stock | -17,500 | $338.27 | $5.9M | 204,706 | Jun 8, 2026 |
| Jun 8, 2026 | Jay C. Horgen President and CEO | MOption exercise Employee Stock Option (Right to Buy)derivative | -75,000 | $0.00 | $0 | 0 | Jun 8, 2026 |
| Jun 1, 2026 | Annette Franqui director | POpen-market purchase Common Stock | +750 | $304.88 | $229k | 1,962 | Jun 3, 2026 |
| May 6, 2026 | David Christopher Ryan director | SOpen-market sale Common Stock | -3,402 | $305.06 | $1.0M | 1,092 | May 8, 2026 |
| May 8, 2026 | Rodriguez Felix V. Matos director | SOpen-market sale Common Stock | -1,000 | $300.18 | $300k | 4,369 | May 8, 2026 |
| May 6, 2026 | G. Staley Cates director | POpen-market purchase Common Stock | +1,500 | $305.83 | $459k | 6,405 | May 6, 2026 |
| May 1, 2026 | G. Staley Cates director | AGrant or award Stock Unitsderivative | +172 | $0.00 | $0 | 172 | May 5, 2026 |
| Mar 5, 2026 | Dava Ritchea Chief Financial Officer | MOption exercise Common Stock | +601 | $0.00 | $0 | 601 | Mar 9, 2026 |
| Mar 5, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | MOption exercise Common Stock | +2,288 | $0.00 | $0 | 44,728 | Mar 9, 2026 |
| Mar 5, 2026 | Loren M Starr director | MOption exercise Common Stock | +652 | $0.00 | $0 | 1,937 | Mar 9, 2026 |
| Mar 5, 2026 | Jay C. Horgen Chief Executive Officer | MOption exercise Common Stock | +17,563 | $0.00 | $0 | 327,950 | Mar 9, 2026 |
| Mar 5, 2026 | Annette Franqui director | MOption exercise Common Stock | +548 | $0.00 | $0 | 1,212 | Mar 9, 2026 |
| Mar 5, 2026 | Marcy Engel director | AGrant or award Stock Unitsderivative | +335 | $0.00 | $0 | 335 | Mar 9, 2026 |
| Mar 5, 2026 | Rodriguez Felix V. Matos director | MOption exercise Common Stock | +867 | $0.00 | $0 | 5,369 | Mar 9, 2026 |
| Mar 5, 2026 | Thomas M Wojcik President and COO | MOption exercise Common Stock | +7,272 | $0.00 | $0 | 165,982 | Mar 9, 2026 |
| Mar 5, 2026 | Karen L. Alvingham director | MOption exercise Common Stock | +867 | $0.00 | $0 | 13,110 | Mar 9, 2026 |
| Mar 5, 2026 | Tracy P. Palandjian director | MOption exercise Common Stock | +867 | $0.00 | $0 | 15,254 | Mar 9, 2026 |
| Mar 5, 2026 | David Christopher Ryan director | MOption exercise Common Stock | +867 | $0.00 | $0 | 4,494 | Mar 9, 2026 |
| Mar 5, 2026 | David Christopher Ryan director | MOption exercise Stock Unitsderivative | -867 | $0.00 | $0 | 3,850 | Mar 9, 2026 |
| Mar 5, 2026 | Karen L. Alvingham director | FTax withholding Common Stock | -67 | $299.18 | $20k | 13,043 | Mar 9, 2026 |
| Mar 5, 2026 | Annette Franqui director | MOption exercise Stock Unitsderivative | -548 | $0.00 | $0 | 477 | Mar 9, 2026 |
| Mar 5, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | AGrant or award Common Stock | +2,426 | $0.00 | $0 | 47,154 | Mar 9, 2026 |
| Mar 5, 2026 | Dava Ritchea Chief Financial Officer | FTax withholding Common Stock | -292 | $299.18 | $87k | 309 | Mar 9, 2026 |
| Mar 5, 2026 | Tracy P. Palandjian director | MOption exercise Stock Unitsderivative | -867 | $0.00 | $0 | 1,970 | Mar 9, 2026 |
| Mar 5, 2026 | Jay C. Horgen Chief Executive Officer | AGrant or award Common Stock | +27,260 | $0.00 | $0 | 355,210 | Mar 9, 2026 |
| Mar 5, 2026 | Rodriguez Felix V. Matos director | MOption exercise Stock Unitsderivative | -867 | $0.00 | $0 | 1,172 | Mar 9, 2026 |
| Mar 5, 2026 | Thomas M Wojcik President and COO | AGrant or award Common Stock | +10,619 | $0.00 | $0 | 176,601 | Mar 9, 2026 |
| Mar 5, 2026 | Loren M Starr director | MOption exercise Stock Unitsderivative | -652 | $0.00 | $0 | 2,362 | Mar 9, 2026 |
| Mar 5, 2026 | David Christopher Ryan director | AGrant or award Stock Unitsderivative | +335 | $0.00 | $0 | 335 | Mar 9, 2026 |
| Mar 5, 2026 | Karen L. Alvingham director | MOption exercise Stock Unitsderivative | -867 | $0.00 | $0 | 3,709 | Mar 9, 2026 |
| Mar 5, 2026 | Annette Franqui director | AGrant or award Stock Unitsderivative | +335 | $0.00 | $0 | 335 | Mar 9, 2026 |
| Mar 5, 2026 | Dava Ritchea Chief Financial Officer | MOption exercise Stock Unitsderivative | -601 | $0.00 | $0 | 1,804 | Mar 9, 2026 |
| Mar 5, 2026 | Tracy P. Palandjian director | AGrant or award Stock Unitsderivative | +335 | $0.00 | $0 | 335 | Mar 9, 2026 |
| Mar 5, 2026 | Jay C. Horgen Chief Executive Officer | FTax withholding Common Stock | -18,333 | $299.18 | $5.5M | 336,877 | Mar 9, 2026 |
| Mar 5, 2026 | Rodriguez Felix V. Matos director | AGrant or award Stock Unitsderivative | +335 | $0.00 | $0 | 335 | Mar 9, 2026 |
| Mar 5, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | FTax withholding Common Stock | -2,282 | $299.18 | $683k | 44,872 | Mar 9, 2026 |
| Mar 5, 2026 | Thomas M Wojcik President and COO | FTax withholding Common Stock | -9,136 | $299.18 | $2.7M | 167,465 | Mar 9, 2026 |
| Mar 5, 2026 | Loren M Starr director | AGrant or award Stock Unitsderivative | +503 | $0.00 | $0 | 503 | Mar 9, 2026 |
| Mar 6, 2026 | Thomas M Wojcik President and COO | SOpen-market sale Common Stock | -8,000 | $286.30 | $2.3M | 159,465 | Mar 9, 2026 |
| Mar 5, 2026 | Karen L. Alvingham director | AGrant or award Stock Unitsderivative | +171 | $0.00 | $0 | 171 | Mar 9, 2026 |
| Mar 5, 2026 | Dava Ritchea Chief Financial Officer | AGrant or award Stock Unitsderivative | +1,667 | $0.00 | $0 | 1,667 | Mar 9, 2026 |
| Mar 5, 2026 | Loren M Starr director | AGrant or award Deferred Stock Unitsderivative | +257 | $0.00 | $0 | 257 | Mar 9, 2026 |
| Mar 9, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | SOpen-market sale Common Stock | -2,200 | $278.24 | $612k | 42,672 | Mar 9, 2026 |
| Mar 5, 2026 | Karen L. Alvingham director | AGrant or award Deferred Stock Unitsderivative | +98 | $0.00 | $0 | 98 | Mar 9, 2026 |
| Mar 5, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | MOption exercise Stock Unitsderivative | -2,288 | $0.00 | $0 | 2,670 | Mar 9, 2026 |
| Mar 5, 2026 | Thomas M Wojcik President and COO | MOption exercise Stock Unitsderivative | -7,272 | $0.00 | $0 | 9,546 | Mar 9, 2026 |
| Mar 5, 2026 | Jay C. Horgen Chief Executive Officer | MOption exercise Stock Unitsderivative | -17,563 | $0.00 | $0 | 22,891 | Mar 9, 2026 |
| Mar 5, 2026 | Kavita Padiyar General Counsel & Corp. Sec. | AGrant or award Stock Unitsderivative | +1,191 | $0.00 | $0 | 1,191 | Mar 9, 2026 |
| Mar 5, 2026 | Jay C. Horgen Chief Executive Officer | AGrant or award Stock Unitsderivative | +8,544 | $0.00 | $0 | 8,544 | Mar 9, 2026 |
| Dec 23, 2025 | Jay C. Horgen Chief Executive Officer | GGift Common Stock | -4,000 | $0.00 | $0 | 510,387 | Dec 23, 2025 |
| Nov 25, 2025 | Tracy P. Palandjian director | GGift Common Stock | -3,499 | $0.00 | $0 | 14,387 | Nov 28, 2025 |
| Nov 7, 2025 | Karen L. Alvingham director | MOption exercise Common Stock | +560 | $69.63 | $39k | 12,425 | Nov 12, 2025 |
| Nov 7, 2025 | Karen L. Alvingham director | FTax withholding Common Stock | -182 | $259.26 | $47k | 12,243 | Nov 12, 2025 |
| Nov 7, 2025 | Karen L. Alvingham director | MOption exercise Director Stock Option (Right to Buy)derivative | -560 | $0.00 | $0 | 0 | Nov 12, 2025 |
| Nov 3, 2025 | Marcy Engel director | AGrant or award Restricted Stock Unitsderivative | +199 | $0.00 | $0 | 199 | Nov 5, 2025 |
| Sep 8, 2025 | Thomas M Wojcik President and COO | MOption exercise Common Stock | +169,303 | $74.49 | $13M | 288,718 | Sep 9, 2025 |
| Sep 8, 2025 | Thomas M Wojcik President and COO | FTax withholding Common Stock | -114,008 | $231.19 | $26M | 174,710 | Sep 9, 2025 |
| Sep 9, 2025 | Thomas M Wojcik President and COO | SOpen-market sale Common Stock | -16,000 | $231.03 | $3.7M | 158,710 | Sep 9, 2025 |
| Sep 8, 2025 | Thomas M Wojcik President and COO | MOption exercise Employee Stock Option (Right to Buy)derivative | -169,303 | $0.00 | $0 | 1,342 | Sep 9, 2025 |
| Sep 2, 2025 | Kavita Padiyar General Counsel & Corp. Sec. | MOption exercise Common Stock | +47,731 | $73.81 | $3.5M | 73,431 | Sep 4, 2025 |
| Sep 2, 2025 | Jay C. Horgen Chief Executive Officer | MOption exercise Common Stock | +75,000 | $74.49 | $5.6M | 559,322 | Sep 4, 2025 |
| Sep 2, 2025 | Kavita Padiyar General Counsel & Corp. Sec. | FTax withholding Common Stock | -30,991 | $229.97 | $7.1M | 42,440 | Sep 4, 2025 |
| Sep 2, 2025 | Jay C. Horgen Chief Executive Officer | FTax withholding Common Stock | -44,935 | $229.97 | $10M | 514,387 | Sep 4, 2025 |
| Sep 2, 2025 | Kavita Padiyar General Counsel & Corp. Sec. | MOption exercise Employee Stock Option (Right to Buy)derivative | -47,731 | $0.00 | $0 | 1,354 | Sep 4, 2025 |
| Sep 2, 2025 | Jay C. Horgen Chief Executive Officer | MOption exercise Employee Stock Option (Right to Buy)derivative | -75,000 | $0.00 | $0 | 75,000 | Sep 4, 2025 |
| Aug 15, 2025 | Tracy P. Palandjian director | MOption exercise Common Stock | +1,117 | $0.00 | $0 | 17,886 | Aug 18, 2025 |
| Aug 15, 2025 | Rodriguez Felix V. Matos director | MOption exercise Common Stock | +1,102 | $0.00 | $0 | 4,502 | Aug 18, 2025 |
| Aug 15, 2025 | Annette Franqui director | MOption exercise Common Stock | +664 | $0.00 | $0 | 664 | Aug 18, 2025 |
| Aug 15, 2025 | Karen L. Alvingham director | MOption exercise Common Stock | +1,092 | $0.00 | $0 | 11,949 | Aug 18, 2025 |
| Aug 15, 2025 | Loren M Starr director | MOption exercise Common Stock | +544 | $0.00 | $0 | 1,285 | Aug 18, 2025 |
| Aug 15, 2025 | David Christopher Ryan director | MOption exercise Common Stock | +1,092 | $0.00 | $0 | 3,627 | Aug 18, 2025 |
| Aug 15, 2025 | Dwight D. Churchill director | MOption exercise Common Stock | +1,398 | $0.00 | $0 | 29,030 | Aug 18, 2025 |
| Aug 15, 2025 | Tracy P. Palandjian director | MOption exercise Stock Unitsderivative | -1,117 | $0.00 | $0 | 2,837 | Aug 18, 2025 |
| Aug 15, 2025 | Rodriguez Felix V. Matos director | MOption exercise Stock Unitsderivative | -1,102 | $0.00 | $0 | 2,039 | Aug 18, 2025 |
| Aug 15, 2025 | Annette Franqui director | MOption exercise Stock Unitsderivative | -664 | $0.00 | $0 | 1,025 | Aug 18, 2025 |
| Aug 15, 2025 | Karen L. Alvingham director | FTax withholding Common Stock | -84 | $218.70 | $18k | 11,865 | Aug 18, 2025 |
| Aug 15, 2025 | Dwight D. Churchill director | MOption exercise Stock Unitsderivative | -1,398 | $0.00 | $0 | 2,775 | Aug 18, 2025 |
| Aug 14, 2025 | Loren M Starr director | AGrant or award Deferred Stock Unitsderivative | +334 | $0.00 | $0 | 334 | Aug 18, 2025 |
| Aug 14, 2025 | David Christopher Ryan director | AGrant or award Deferred Stock Unitsderivative | +307 | $0.00 | $0 | 307 | Aug 18, 2025 |
| Aug 15, 2025 | Loren M Starr director | MOption exercise Stock Unitsderivative | -544 | $0.00 | $0 | 2,680 | Aug 18, 2025 |
| Aug 15, 2025 | David Christopher Ryan director | MOption exercise Stock Unitsderivative | -1,092 | $0.00 | $0 | 4,409 | Aug 18, 2025 |
| Aug 14, 2025 | Karen L. Alvingham director | AGrant or award Deferred Stock Unitsderivative | +262 | $0.00 | $0 | 262 | Aug 18, 2025 |
| Aug 15, 2025 | Karen L. Alvingham director | MOption exercise Stock Unitsderivative | -1,092 | $0.00 | $0 | 4,313 | Aug 18, 2025 |
| Aug 12, 2025 | Jay C. Horgen Chief Executive Officer | MOption exercise Common Stock | +75,000 | $74.49 | $5.6M | 529,929 | Aug 14, 2025 |
| Aug 12, 2025 | Jay C. Horgen Chief Executive Officer | FTax withholding Common Stock | -45,607 | $219.70 | $10M | 484,322 | Aug 14, 2025 |
| Aug 12, 2025 | Jay C. Horgen Chief Executive Officer | MOption exercise Employee Stock Option (Right to Buy)derivative | -75,000 | $0.00 | $0 | 150,000 | Aug 14, 2025 |
| Jul 31, 2025 | Karen L. Alvingham director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | Dwight D. Churchill director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | Rodriguez Felix V. Matos director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | Annette Franqui director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | David Christopher Ryan director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | Tracy P. Palandjian director | AGrant or award Restricted Stock Unitsderivative | +477 | $0.00 | $0 | 477 | Aug 4, 2025 |
| Jul 31, 2025 | Loren M Starr director | AGrant or award Restricted Stock Unitsderivative | +716 | $0.00 | $0 | 716 | Aug 4, 2025 |
Insiders
Everyone who has filed a Form 4 here.
- Karen L. Alvinghamdirector
- G. Staley Catesdirector
- Dwight D. Churchilldirector
- Marcy Engeldirector
- Annette Franquidirector
- Jay C. HorgenPresident and CEO
- Rodriguez Felix V. Matosdirector
- Kavita PadiyarGeneral Counsel & Corp. Sec.
- Tracy P. Palandjiandirector
- Dava RitcheaChief Financial Officer
- David Christopher Ryandirector
- Loren M Starrdirector
- Thomas M WojcikPresident and COO
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.