AFFILIATED MANAGERS GROUP IN AMG
COM · Common Stock · CUSIP 008252108 · ISIN US0082521081
Global investment management company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($14.8m this quarter). Holder counts are more reliable. Shares outstanding: 32.8m as of 2024-02-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $151.42. Options: 4 managers hold calls ($4.1m notional), 7 hold puts ($8.6m).
Trends to Q4 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 331 |
| Q4 2022 | 368 |
| Q1 2023 | 389 |
| Q2 2023 | 382 |
| Q3 2023 | 362 |
| Q4 2023 | 388 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 186 | 148 |
| Q1 2023 | 195 | 180 |
| Q2 2023 | 147 | 214 |
| Q3 2023 | 150 | 204 |
| Q4 2023 | 182 | 163 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2023 | $6.4m | $4.8m | 0.75 |
| Q2 2023 | $3.5m | $2.2m | 0.63 |
| Q3 2023 | $2.1m | $2.6m | 1.20 |
| Q4 2023 | $4.1m | $8.6m | 2.11 |
Biggest buyers
| MORGAN STANLEY | Added | +2.7m |
| Channing Capital Management, LLC | Added | +414.4k |
| MARSHALL WACE, LLP | New | +338.6k |
| JPMORGAN CHASE & CO | Added | +200.3k |
| NEW YORK STATE COMMON RETIREMENT FUND | Added | +124.9k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +122.5k |
| Assenagon Asset Management S.A. | Added | +110.6k |
| D. E. Shaw & Co., Inc. | Added | +95.3k |
| Allianz Asset Management GmbH | Added | +92.9k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +89.7k |
Biggest sellers
| EdgePoint Investment Group Inc. | Sold out | -1.8m |
| STATE STREET CORP | Reduced | -226.7k |
| VANGUARD GROUP INC | Reduced | -134.6k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -130.4k |
| Prana Capital Management, LP | Reduced | -100.7k |
| Man Group plc | Sold out | -86.5k |
| Balyasny Asset Management L.P. | Sold out | -55.1k |
| BlackRock Inc. | Reduced | -55.0k |
| Kiltearn Partners LLP | Reduced | -41.7k |
| MALTESE CAPITAL MANAGEMENT LLC | Sold out | -33.3k |
Biggest calls
| Squarepoint Ops LLC | Added | $2.9m19.4k shares |
| CITADEL ADVISORS LLC | Reduced | $636.0k4.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $514.8k3.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Squarepoint Ops LLC | Added | $4.2m28.0k shares |
| Genus Capital Management Inc. | New | $2.3m15.3k shares |
| CITADEL ADVISORS LLC | Added | $984.2k6.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $969.1k6.4k shares |
| Skaana Management L.P. | New | $75.7k500 shares |
| SIMPLEX TRADING, LLC | New | $45.0k300 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 5.1% |
Fell to 5% or below in the last year: MORGAN STANLEY (5.5%, 2026-08-12), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Clarkston Capital Partners, LLC (3.2%, 2026-02-13)
Insider purchases and sales in Q4 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2022 | 2 | $1.0m | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 1 | $500.8k | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
None reported in Q4 2023.
Holders, Q4 2023
| Manager | Shares | Change |
|---|---|---|
| MORGAN STANLEY 0.03% of their portfolio | 5.2m $783.4m | Added +2.7m |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.7m $555.4m | Reduced -134.6k |
| BlackRock Inc. 0.01% of their portfolio | 3.3m $501.1m | Reduced -55.0k |
| Clarkston Capital Partners, LLC 6.26% of their portfolio | 2.2m $337.5m | Reduced -21.6k |
| FMR LLC 0.02% of their portfolio | 1.7m $252.9m | Added +88.1k |
| ARIEL INVESTMENTS, LLC 1.87% of their portfolio | 1.2m $188.2m | Added +54.5k |
| STATE STREET CORP 0.01% of their portfolio | 1.0m $156.7m | Reduced -226.7k |
| SOUTHEASTERN ASSET MANAGEMENT INC/TN/ 5.14% of their portfolio | 882.4k $133.6m | Reduced -25.7k |
| Kiltearn Partners LLP 9.37% of their portfolio | 803.8k $121.7m | Reduced -41.7k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 771.1k $116.8m | Added +6.3k |
| LYRICAL ASSET MANAGEMENT LP 1.68% of their portfolio | 679.0k $102.8m | Reduced -5.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 595.1k $90.1m | Added +254 |
| Allianz Asset Management GmbH 0.14% of their portfolio | 512.0k $77.5m | Added +92.9k |
| Channing Capital Management, LLC 2.12% of their portfolio | 474.5k $71.9m | Added +414.4k |
| NORGES BANK 0.01% of their portfolio | 437.3k $66.2m | Added +55.4k |
| LGT CAPITAL PARTNERS LTD. 1.78% of their portfolio | 393.3k $59.6m | Added +86.7k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 389.2k $58.9m | Added +9.7k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 361.8k $54.8m | Added +80.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 357.7k $54.2m | Added +200.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 350.4k $53.1m | Added +3.4k |
| Spyglass Capital Management LLC 3.73% of their portfolio | 342.1k $51.8m | Reduced -25.5k |
| MARSHALL WACE, LLP 0.10% of their portfolio | 338.6k $51.3m | New |
| Invesco Ltd. 0.01% of their portfolio | 322.1k $48.8m | Added +58.4k |
| BRUNI J V & CO /CO 5.87% of their portfolio | 312.3k $47.3m | Reduced -2.0k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 305.7k $46.3m | Reduced -130.4k |
| D. E. Shaw & Co., Inc. 0.07% of their portfolio | 301.2k $45.6m | Added +95.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 298.6k $45.2m | Reduced -9.7k |
| RAYMOND JAMES & ASSOCIATES 0.03% of their portfolio | 238.9k $36.2m | Reduced -10.4k |
| LSV ASSET MANAGEMENT 0.07% of their portfolio | 215.1k $32.6m | Added +21.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 161.5k $24.4m | Added +7.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 161.4k $24.4m | Added +124.9k |
| Assenagon Asset Management S.A. 0.07% of their portfolio | 148.2k $22.4m | Added +110.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 138.4k $21.0m | Reduced -28.8k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 134.9k $20.4m | Added +55.5k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 133.0k $20.1m | Added +39.5k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.10% of their portfolio | 130.3k $19.7m | Added +122.5k |
| Bridgewater Associates, LP 0.11% of their portfolio | 127.4k $19.3m | Added +25.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 124.2k $18.8m | Reduced -5.1k |
| REINHART PARTNERS, LLC. 0.75% of their portfolio | 112.3k $17.0m | Reduced -22.6k |
| MACQUARIE GROUP LTD 0.02% of their portfolio | 109.8k $16.6m | Added +50 |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 107.4k $16.3m | Reduced -3.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 105.0k $15.9m | Added +89.7k |
| Retirement Systems of Alabama 0.07% of their portfolio | 104.8k $15.9m | Added +11.2k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 98.4k $14.9m | Added +261 |
| NORTH STAR ASSET MANAGEMENT INC 0.75% of their portfolio | 97.5k $14.8m | Added +220 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 84.6k $12.8m | Reduced -355 |
| Man Group plc 0.04% of their portfolio | 84.2k $12.8m | New |
| AXA S.A. 0.02% of their portfolio | 80.1k $12.1m | New |
| Cubist Systematic Strategies, LLC 0.15% of their portfolio | 79.7k $12.1m | Added +77.8k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 77.5k $11.7m | Added +24.3k |
| Prana Capital Management, LP 0.68% of their portfolio | 76.8k $11.6m | Reduced -100.7k |
| California Public Employees Retirement System 0.01% of their portfolio | 76.2k $11.5m | Reduced -3.2k |
| Wallace Capital Management Inc. 1.61% of their portfolio | 71.6k $10.8m | Reduced -1.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 70.8k $10.7m | Added +6.1k |
| Swiss National Bank 0.01% of their portfolio | 69.1k $10.5m | Reduced -10.3k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 67.7k $10.3m | Added +9.6k |
| Polar Capital Holdings Plc 0.06% of their portfolio | 67.0k $10.1m | Reduced -20.7k |
| Fisher Asset Management, LLC 0.01% of their portfolio | 62.9k $9.5m | Reduced -5.2k |
| Cambria Investment Management, L.P. 0.66% of their portfolio | 62.9k $9.5m | Added +8.3k |
| Weiss Multi-Strategy Advisers LLC 0.24% of their portfolio | 62.8k $9.5m | Added +31.7k |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 61.7k $9.3m | Added +2.5k |
| Parkwood LLC 1.42% of their portfolio | 58.8k $8.9m | Reduced -4.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 57.1k $8.6m | Added +359 |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 55.5k $8.4m | Added +10.3k |
| Penn Capital Management Company, LLC 0.75% of their portfolio | 54.1k $8.2m | New |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 52.2k $7.9m | Reduced -919 |
| Legal & General Group Plc 0.00% of their portfolio | 51.9k $7.9m | Reduced -2.0k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 51.1k $7.7m | Reduced -423 |
| ALGERT GLOBAL LLC 0.30% of their portfolio | 48.9k $7.4m | Added +10.2k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 47.8k $7.2m | Reduced -503 |
| Brandywine Global Investment Management, LLC 0.06% of their portfolio | 47.6k $7.2m | Added +11.8k |
| UBS Group AG 0.00% of their portfolio | 47.2k $7.1m | Reduced -1.6k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 46.8k $7.1m | Reduced -65 |
| AMERICAN INTERNATIONAL GROUP, INC. 0.03% of their portfolio | 45.7k $6.9m | Reduced -3.7k |
| Schonfeld Strategic Advisors LLC 0.06% of their portfolio | 44.2k $6.7m | Reduced -31.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 44.2k $6.7m | Reduced -2.4k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 43.4k $6.6m | Reduced -898 |
| ASSETMARK, INC 0.02% of their portfolio | 42.7k $6.5m | Added +4.1k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.03% of their portfolio | 42.4k $6.4m | Added +236 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 42.0k $6.4m | Reduced -869 |
| STOREBRAND ASSET MANAGEMENT AS 0.02% of their portfolio | 40.4k $6.1m | Reduced -97 |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 38.8k $5.9m | Added +703 |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 38.8k $5.9m | Added +5.1k |
| TRUIST FINANCIAL CORP 0.01% of their portfolio | 38.0k $5.8m | Reduced -4.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 37.4k $5.7m | Reduced -2.8k |
| BARCLAYS PLC 0.00% of their portfolio | 36.3k $5.5m | Added +11.6k |
| Calamos Advisors LLC 0.03% of their portfolio | 35.4k $5.4m | Unchanged |
| SEI INVESTMENTS CO 0.01% of their portfolio | 34.2k $5.2m | Reduced -6.3k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 33.8k $5.1m | Reduced -36 |
| Treasurer of the State of North Carolina 0.02% of their portfolio | 33.3k $5.0m | Reduced -230 |
| HRT FINANCIAL LP 0.04% of their portfolio | 33.0k $5.0m | Reduced -7.4k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 32.7k $4.9m | Added +18.3k |
| Campbell & CO Investment Adviser LLC 0.44% of their portfolio | 32.2k $4.9m | Added +26.6k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 31.9k $4.8m | Added +181 |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 31.8k $4.9m | Added +11.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 31.5k $4.8m | Reduced -4.4k |
| TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio | 29.2k $4.4m | Reduced -559 |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 29.0k $4.4m | Added +296 |
| Vident Advisory, LLC 0.10% of their portfolio | 27.4k $4.2m | Added +656 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 27.2k $4.1m | Reduced -1.9k |