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Affiliated Managers Group, Inc. (AMG)
NYSE: AMG · Real-Time Price · USD
Financial Services · Asset Management
394.57+11.15 (+2.91%)
Insider Score
––Not scored
AMG Insider Score
Insiders here have filed 5 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
AMG Stock Insider Trading Activity
AMG stock’s insider trading shows 2 purchases for an estimated $687.40K and 3 sales on the open market for an estimated $7.26M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Matos Rodriguez Felix V. Director | Option exercise | 848 | — | — | 19.4% | 5,217 | Aug 15, 2026 | — | Form 4 |
| STARR LOREN M Director | Option exercise | 716 | — | — | 37.0% | 2,653 | Aug 15, 2026 | — | Form 4 |
| Palandjian Tracy P. Director | Option exercise | 848 | — | — | 4.8% | 18,375 | Aug 15, 2026 | — | Form 4 |
| FRANQUI ANNETTE Director | Option exercise | 477 | — | — | 24.3% | 2,439 | Aug 15, 2026 | — | Form 4 |
| Matos Rodriguez Felix V. Director | Option exercise | 654 | — | — | 15.0% | 5,023 | Aug 15, 2026 | — | Form 4 |
| Palandjian Tracy P. Director | Option exercise | 2,958 | $82.07 | $242.76K | 19.4% | 18,212 | Jun 12, 2026 | — | Form 4 |
| Palandjian Tracy P. Director | Tax withheld | 685 | $354.62 | $242.91K | 3.8% | 17,527 | Jun 12, 2026 | — | Form 4 |
| Horgen Jay C. CEO | Option exercise | 75,000 | $74.49 | $5.59M | 40.1% | 261,877 | Jun 8, 2026 | — | Form 4 |
| Horgen Jay C. CEO | Tax withheld | 39,671 | $336.62 | $13.35M | 15.1% | 222,206 | Jun 8, 2026 | — | Form 4 |
| Horgen Jay C. CEO | Sell | 17,500 | $338.27 | $5.92M | 7.9% | 204,706 | Jun 8, 2026 | — | Form 4 |
| FRANQUI ANNETTE Director | Buy | 750 | $304.88 | $228.66K | 61.9% | 1,962 | Jun 1, 2026 | CFirst Buy | Form 4 |
| Matos Rodriguez Felix V. Director | Sell | 1,000 | $300.18 | $300.18K | 18.6% | 4,369 | May 8, 2026 | — | Form 4 |
| Ryan David Christopher Director | Sell | 3,402 | $305.06 | $1.04M | 75.7% | 1,092 | May 6, 2026 | — | Form 4 |
| Cates G. Staley Director | Buy | 1,500 | $305.83 | $458.75K | 30.6% | 6,405 | May 6, 2026 | CFirst Buy | Form 4 |
| Padiyar Kavita Other | Sell | 2,200 | $278.24 | $612.13K | 4.9% | 42,672 | Mar 9, 2026 | — | Form 4 |
| Wojcik Thomas M COO | Sell | 8,000 | $286.30 | $2.29M | 4.8% | 159,465 | Mar 6, 2026 | — | Form 4 |
| Ryan David Christopher Director | Option exercise | 867 | — | — | 23.9% | 4,494 | Mar 5, 2026 | — | Form 4 |
| Alvingham Karen L. Director | Tax withheld | 67 | $299.18 | $20.05K | 0.5% | 13,043 | Mar 5, 2026 | — | Form 4 |
| FRANQUI ANNETTE Director | Option exercise | 548 | — | — | 82.5% | 1,212 | Mar 5, 2026 | — | Form 4 |
| Padiyar Kavita Other | Tax withheld | 2,282 | $299.18 | $682.73K | 4.8% | 44,872 | Mar 5, 2026 | — | Form 4 |
| Padiyar Kavita Other | Award | 2,426 | — | — | 5.4% | 47,154 | Mar 5, 2026 | — | Form 4 |
| Padiyar Kavita Other | Option exercise | 2,288 | — | — | 5.4% | 44,728 | Mar 5, 2026 | — | Form 4 |
| Palandjian Tracy P. Director | Option exercise | 867 | — | — | 6.0% | 15,254 | Mar 5, 2026 | — | Form 4 |
| Alvingham Karen L. Director | Option exercise | 867 | — | — | 7.1% | 13,110 | Mar 5, 2026 | — | Form 4 |
| STARR LOREN M Director | Option exercise | 652 | — | — | 50.7% | 1,937 | Mar 5, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.