NYSE - Delayed Quote
USD
Affiliated Managers Group, Inc. (AMG)
370.22
+4.04
(+1.10%)
At close: September 4 at 4:00:02 PM EDT
370.22
0.00
(0.00%)
After hours: September 4 at 7:55:09 PM EDT
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Date
Open
High
Low
Close
Close price adjusted for splits.
Adj Close
Adjusted close price adjusted for splits and dividend and/or capital gain distributions.
Volume
Sep 4, 2026
363.09
371.80
361.40
370.22
370.22
243,900
Sep 3, 2026
359.70
368.35
358.00
366.18
366.18
447,500
Sep 2, 2026
362.00
374.09
354.73
356.47
356.47
416,800
Sep 1, 2026
363.73
372.80
360.26
360.75
360.75
216,500
Aug 31, 2026
370.85
375.61
367.97
368.19
368.19
307,200
Aug 28, 2026
371.23
376.75
368.70
370.87
370.87
164,200
Aug 27, 2026
370.14
374.92
367.55
370.48
370.48
284,600
Aug 26, 2026
366.13
373.73
363.33
370.59
370.59
195,600
Aug 25, 2026
360.85
367.10
358.18
365.28
365.28
164,500
Aug 24, 2026
355.67
364.95
351.77
358.94
358.94
257,100
Aug 21, 2026
356.02
367.35
355.55
356.21
356.21
277,200
Aug 20, 2026
354.68
358.04
350.76
352.61
352.61
267,400
Aug 19, 2026
365.31
367.86
355.18
355.41
355.41
366,200
Aug 18, 2026
370.00
370.21
360.78
363.57
363.57
377,700
Aug 17, 2026
371.89
375.99
368.23
371.40
371.40
240,400
Aug 14, 2026
364.61
374.90
363.28
374.37
374.37
278,000
Aug 13, 2026
364.77
370.87
360.58
367.10
367.10
228,700
Aug 12, 2026
360.90
365.33
358.25
362.40
362.40
209,100
Aug 11, 2026
363.81
370.79
358.95
359.07
359.07
294,300
Aug 10, 2026
0.01
Dividend
Dividends on any given ex-date include regular and any special dividends
Aug 10, 2026
368.11
371.75
361.81
363.39
363.39
277,000
Aug 7, 2026
373.07
378.32
367.91
369.70
369.69
186,700
Aug 6, 2026
376.65
379.02
372.07
372.18
372.17
117,400
Aug 5, 2026
387.61
390.99
375.45
375.62
375.61
196,100
Aug 4, 2026
382.72
392.92
382.37
383.42
383.41
290,000
Aug 3, 2026
368.70
384.11
368.70
380.89
380.88
347,100
Jul 31, 2026
366.13
375.41
365.00
366.73
366.72
232,400
Jul 30, 2026
363.70
374.86
355.00
365.46
365.45
321,400
Jul 29, 2026
366.01
370.75
360.07
360.07
360.06
257,100
Jul 28, 2026
364.04
375.00
360.95
370.12
370.11
244,200
Jul 27, 2026
361.66
369.58
359.02
363.80
363.79
199,300
Jul 24, 2026
349.01
358.68
347.95
358.29
358.28
196,800
Jul 23, 2026
344.11
348.75
338.44
347.77
347.76
239,700
Jul 22, 2026
340.85
356.05
340.85
346.70
346.69
350,200
Jul 21, 2026
368.21
373.55
328.11
340.58
340.57
910,100
Jul 20, 2026
373.24
377.16
365.86
366.12
366.11
109,700
Jul 17, 2026
367.77
373.74
359.94
369.83
369.82
217,300
Jul 16, 2026
377.11
381.06
373.13
376.79
376.78
190,300
Jul 15, 2026
370.00
382.75
369.93
379.59
379.58
170,500
Jul 14, 2026
359.98
368.86
359.98
366.00
365.99
194,300
Jul 13, 2026
365.58
369.14
357.86
359.78
359.77
234,600
Jul 10, 2026
368.40
369.94
366.20
366.41
366.40
198,100
Jul 9, 2026
359.39
366.47
356.31
364.96
364.95
221,000
Jul 8, 2026
357.85
360.31
353.68
356.27
356.26
232,900
Jul 7, 2026
360.45
361.75
354.40
359.72
359.71
285,000
Jul 6, 2026
345.34
357.85
344.44
356.61
356.60
292,200
Jul 2, 2026
340.79
345.61
337.96
344.60
344.59
204,100
Jul 1, 2026
338.50
348.50
336.76
336.91
336.90
303,900
Jun 30, 2026
344.33
349.21
336.36
338.40
338.39
550,900
Jun 29, 2026
342.05
343.94
334.20
342.46
342.45
489,300
Jun 26, 2026
340.19
344.55
337.57
341.98
341.97
450,900
Jun 25, 2026
342.52
346.59
337.35
340.08
340.07
199,400
Jun 24, 2026
350.15
350.38
337.51
339.10
339.09
257,100
Jun 23, 2026
352.27
356.34
349.35
350.22
350.21
259,600
Jun 22, 2026
354.92
358.99
349.00
357.31
357.30
317,000
Jun 18, 2026
361.53
361.78
351.16
352.90
352.89
646,700
Jun 17, 2026
357.42
362.94
353.94
355.67
355.66
255,900
Jun 16, 2026
355.85
359.49
353.92
357.50
357.49
169,700
Jun 15, 2026
359.30
363.89
352.12
352.93
352.92
260,500
Jun 12, 2026
347.08
355.55
346.00
354.62
354.61
371,500
Jun 11, 2026
341.13
345.81
335.56
344.33
344.32
233,300
Jun 10, 2026
339.42
346.79
334.60
335.34
335.33
325,800
Jun 9, 2026
339.58
348.15
333.01
342.12
342.11
362,700
Jun 8, 2026
337.09
345.07
334.98
336.62
336.61
613,000
Jun 5, 2026
332.71
338.07
328.38
336.81
336.80
611,100
Jun 4, 2026
312.62
336.76
312.62
334.82
334.81
544,300
Jun 3, 2026
306.52
312.87
299.81
311.61
311.60
383,100
Jun 2, 2026
302.39
312.30
301.90
310.52
310.51
310,200
Jun 1, 2026
302.39
307.35
300.04
302.45
302.44
258,100
May 29, 2026
303.16
307.10
301.70
302.85
302.84
500,400
May 28, 2026
305.88
308.71
301.63
302.96
302.95
297,100
May 27, 2026
308.95
313.35
303.51
307.92
307.91
451,300
May 26, 2026
304.08
309.75
303.30
308.65
308.64
227,900
May 22, 2026
303.53
306.47
295.78
301.96
301.95
262,700
May 21, 2026
299.42
302.84
295.41
302.63
302.62
338,100
May 20, 2026
296.93
303.53
294.99
301.34
301.33
355,400
May 19, 2026
296.56
299.57
293.49
294.90
294.89
232,300
May 18, 2026
293.97
301.39
291.25
297.03
297.02
231,800
May 15, 2026
299.72
301.10
293.18
293.91
293.90
308,300
May 14, 2026
305.82
307.78
301.48
302.10
302.09
186,600
May 13, 2026
301.33
304.57
296.32
303.48
303.47
174,500
May 12, 2026
300.74
303.22
296.37
301.53
301.52
285,700
May 11, 2026
0.01
Dividend
Dividends on any given ex-date include regular and any special dividends
May 11, 2026
302.60
304.65
298.39
301.28
301.27
273,400
May 8, 2026
299.27
303.40
290.90
302.80
302.78
339,900
May 7, 2026
308.84
310.97
296.44
297.76
297.74
318,000
May 6, 2026
307.28
308.89
303.17
306.02
306.00
280,500
May 5, 2026
298.83
305.97
295.82
303.64
303.62
274,900
May 4, 2026
292.07
305.08
291.71
297.53
297.51
373,100
May 1, 2026
301.76
317.81
285.96
291.07
291.05
561,200
Apr 30, 2026
288.19
297.72
285.00
294.67
294.65
473,700
Apr 29, 2026
292.53
293.60
287.18
289.10
289.08
335,500
Apr 28, 2026
292.63
295.24
289.39
292.47
292.45
279,500
Apr 27, 2026
287.18
293.56
286.31
291.57
291.55
281,200
Apr 24, 2026
287.82
291.23
283.93
287.44
287.42
302,400
Apr 23, 2026
299.16
299.88
270.35
284.39
284.37
692,400
Apr 22, 2026
303.10
305.46
298.89
301.30
301.28
209,400
Apr 21, 2026
302.82
306.73
299.51
300.91
300.89
209,500
Apr 20, 2026
294.33
301.46
293.00
300.97
300.95
225,100
Apr 17, 2026
302.62
308.06
291.19
294.98
294.96
588,400
Apr 16, 2026
301.60
304.04
295.92
299.41
299.39
346,400
Apr 15, 2026
305.73
306.74
299.81
301.15
301.13
298,800
Apr 14, 2026
293.45
305.87
293.45
303.21
303.19
362,700
Apr 13, 2026
281.44
292.64
281.44
291.10
291.08
235,500
Apr 10, 2026
285.58
286.33
280.66
285.36
285.34
310,100
Apr 9, 2026
288.08
291.32
283.31
286.32
286.30
302,400
Apr 8, 2026
279.22
287.14
279.22
286.48
286.46
506,600
Apr 7, 2026
265.81
272.00
264.97
270.31
270.29
355,400
Apr 6, 2026
265.01
269.68
264.01
267.31
267.29
448,100
Apr 2, 2026
267.06
270.74
254.44
265.51
265.49
393,800
Apr 1, 2026
280.67
283.21
273.25
273.50
273.48
250,300
Mar 31, 2026
275.00
281.15
271.10
276.70
276.68
232,500
Mar 30, 2026
272.19
275.37
268.50
269.88
269.86
316,800
Mar 27, 2026
274.94
276.50
267.98
268.98
268.96
306,000
Mar 26, 2026
277.25
277.27
270.08
276.34
276.32
419,500
Mar 25, 2026
278.40
283.38
277.54
280.66
280.64
215,200
Mar 24, 2026
272.34
277.21
269.82
275.55
275.53
354,500
Mar 23, 2026
285.44
286.76
274.88
275.28
275.26
531,100
Mar 20, 2026
278.86
280.76
274.16
278.17
278.15
675,500
Mar 19, 2026
275.09
282.38
273.35
278.67
278.65
477,000
Mar 18, 2026
275.45
281.06
273.84
275.65
275.63
362,800
Mar 17, 2026
276.97
285.30
276.97
278.86
278.84
322,000
Mar 16, 2026
276.47
278.85
271.48
273.08
273.06
265,800
Mar 13, 2026
273.54
276.58
270.06
271.95
271.93
218,500
Mar 12, 2026
275.99
278.86
267.23
270.43
270.41
397,200
Mar 11, 2026
280.14
286.32
271.57
282.08
282.06
454,500
Mar 10, 2026
283.54
287.61
277.30
280.82
280.80
401,000
Mar 9, 2026
280.39
283.20
269.94
281.53
281.51
457,300
Mar 6, 2026
291.30
291.30
280.96
285.77
285.75
314,300
Mar 5, 2026
301.00
306.10
291.25
299.18
299.16
366,000
Mar 4, 2026
313.26
313.26
300.85
303.13
303.11
505,100
Mar 3, 2026
303.60
312.36
296.45
310.30
310.28
326,900
Mar 2, 2026
301.33
315.89
300.62
312.92
312.90
275,400
Feb 27, 2026
307.55
307.55
297.21
306.18
306.16
448,400
Feb 26, 2026
315.00
318.90
308.66
312.94
312.92
349,200
Feb 25, 2026
305.12
312.79
301.97
312.63
312.61
364,300
Feb 24, 2026
291.29
302.44
291.06
302.14
302.12
490,500
Feb 23, 2026
0.01
Dividend
Dividends on any given ex-date include regular and any special dividends
Feb 23, 2026
286.90
292.16
279.02
291.29
291.27
405,100
Feb 20, 2026
319.47
319.76
285.63
287.69
287.66
988,500
Feb 19, 2026
327.77
330.35
320.52
322.23
322.20
325,300
Feb 18, 2026
323.95
334.78
321.32
330.75
330.72
420,200
Feb 17, 2026
331.95
332.85
319.35
323.01
322.98
469,200
Feb 13, 2026
330.38
330.38
319.32
329.79
329.76
453,300
Feb 12, 2026
308.09
329.19
304.12
328.95
328.92
1,117,000
Feb 11, 2026
304.65
310.60
289.80
308.09
308.06
822,900
Feb 10, 2026
304.75
308.43
299.17
303.80
303.77
349,400
Feb 9, 2026
304.35
309.54
304.34
304.62
304.59
459,400
Feb 6, 2026
306.54
313.32
300.00
305.50
305.47
358,200
Feb 5, 2026
307.32
309.00
294.15
301.55
301.52
473,600
Feb 4, 2026
307.55
313.17
303.58
311.24
311.21
335,800
Feb 3, 2026
316.92
319.85
302.08
308.40
308.37
474,000
Feb 2, 2026
313.38
317.40
310.62
316.32
316.29
335,900
Jan 30, 2026
310.25
315.51
309.70
313.09
313.06
501,400
Jan 29, 2026
316.06
319.46
309.53
312.77
312.74
292,600
Jan 28, 2026
309.45
315.09
307.44
313.58
313.55
281,600
Jan 27, 2026
314.87
315.50
304.92
307.56
307.53
487,800
Jan 26, 2026
321.27
322.43
309.35
312.77
312.74
532,300
Jan 23, 2026
327.00
327.30
319.02
319.82
319.79
296,500
Jan 22, 2026
330.54
334.00
328.37
329.57
329.54
250,600
Jan 21, 2026
321.61
331.73
321.50
327.96
327.93
455,100
Jan 20, 2026
323.48
330.00
317.10
318.78
318.75
477,400
Jan 16, 2026
321.22
327.53
321.22
326.12
326.09
345,500
Jan 15, 2026
317.57
325.66
317.57
322.23
322.20
384,000
Jan 14, 2026
312.00
315.94
310.00
315.19
315.16
230,900
Jan 13, 2026
310.71
313.56
309.32
310.84
310.81
241,000
Jan 12, 2026
305.50
313.24
303.76
312.29
312.26
373,800
Jan 9, 2026
306.39
309.35
305.50
308.03
308.00
336,200
Jan 8, 2026
306.45
311.51
305.34
307.31
307.28
497,200
Jan 7, 2026
309.79
309.79
303.80
307.70
307.67
410,500
Jan 6, 2026
303.63
310.32
300.80
310.31
310.28
324,100
Jan 5, 2026
288.93
305.63
288.93
303.57
303.54
461,600
Jan 2, 2026
288.75
291.21
287.33
288.85
288.82
515,600
Dec 31, 2025
289.58
291.87
287.54
288.28
288.25
414,600
Dec 30, 2025
292.00
293.35
286.32
290.35
290.32
477,900
Dec 29, 2025
294.98
298.04
290.02
292.08
292.05
470,700
Dec 26, 2025
291.68
299.69
291.42
296.07
296.04
323,300
Dec 24, 2025
293.03
293.74
290.88
291.13
291.10
175,200
Dec 23, 2025
287.56
292.43
287.56
292.29
292.26
368,800
Dec 22, 2025
280.50
287.86
279.86
287.67
287.64
484,300
Dec 19, 2025
275.91
280.52
275.38
279.09
279.06
1,097,700
Dec 18, 2025
274.83
276.99
272.35
274.83
274.80
584,800
Dec 17, 2025
274.94
277.65
269.51
271.51
271.48
571,800
Dec 16, 2025
275.89
275.95
270.00
273.15
273.12
296,900
Dec 15, 2025
281.89
281.89
273.34
275.37
275.34
348,400
Dec 12, 2025
281.98
281.98
275.20
277.41
277.38
231,000
Dec 11, 2025
279.84
283.22
277.04
280.16
280.13
666,900
Dec 10, 2025
271.77
280.71
270.00
279.60
279.57
815,600
Dec 9, 2025
271.05
276.20
270.00
271.06
271.03
940,000
Dec 8, 2025
273.51
275.61
267.26
270.21
270.18
232,300
Dec 5, 2025
270.80
274.16
270.45
273.19
273.16
155,300
Dec 4, 2025
272.17
276.40
268.14
271.69
271.66
140,700
Dec 3, 2025
266.39
272.16
266.39
271.55
271.52
200,800
Dec 2, 2025
268.58
276.24
264.01
266.16
266.13
215,000
Dec 1, 2025
266.41
272.00
266.41
267.58
267.55
393,500
Nov 28, 2025
264.01
270.28
264.01
268.83
268.80
116,800
Nov 26, 2025
266.24
271.48
265.39
267.60
267.57
251,400
Nov 25, 2025
260.60
266.30
259.84
266.11
266.08
304,700
Nov 24, 2025
257.08
263.59
256.79
263.23
263.21
272,800
Nov 21, 2025
254.43
258.82
252.00
256.87
256.85
280,000
Nov 20, 2025
257.83
261.27
251.33
252.92
252.90
372,900
Nov 19, 2025
250.25
254.41
248.11
253.85
253.83
414,200
Nov 18, 2025
250.17
253.20
246.11
250.46
250.44
161,400
Nov 17, 2025
257.74
259.60
248.71
251.23
251.21
259,300
Nov 14, 2025
257.32
259.99
254.90
258.31
258.29
308,900
Nov 13, 2025
0.01
Dividend
Dividends on any given ex-date include regular and any special dividends
Nov 13, 2025
262.09
265.59
257.35
259.10
259.08
302,700
Nov 12, 2025
258.02
264.81
256.92
264.80
264.76
417,800
Nov 11, 2025
259.83
260.60
256.44
257.65
257.62
512,100
Nov 10, 2025
262.00
262.68
258.05
259.57
259.54
147,800
Nov 7, 2025
258.09
259.33
251.19
259.26
259.23
347,400
Nov 6, 2025
256.87
261.32
254.96
258.79
258.76
280,400
Nov 5, 2025
252.43
259.47
251.49
256.74
256.71
334,800
Nov 4, 2025
256.54
256.54
250.87
251.44
251.41
399,700
Nov 3, 2025
247.90
256.81
242.77
256.56
256.53
698,700
Oct 31, 2025
236.96
240.91
236.32
237.96
237.93
335,000
Oct 30, 2025
237.19
240.19
236.50
236.68
236.65
151,700
Oct 29, 2025
238.02
240.76
235.04
237.90
237.87
172,900
Oct 28, 2025
240.53
241.82
239.03
240.55
240.52
178,000
Oct 27, 2025
242.99
247.66
241.84
242.01
241.98
251,700
Oct 24, 2025
238.95
243.00
237.13
240.27
240.24
191,800
Oct 23, 2025
238.79
241.60
235.98
238.95
238.92
175,500
Oct 22, 2025
238.82
239.97
234.23
236.91
236.88
248,500
Oct 21, 2025
240.78
245.35
237.82
238.80
238.77
276,700
Oct 20, 2025
237.69
244.33
236.59
243.10
243.07
283,800
Oct 17, 2025
233.45
236.68
231.53
235.60
235.57
171,000
Oct 16, 2025
240.28
242.73
232.19
233.85
233.82
204,200
Oct 15, 2025
241.59
242.50
236.49
238.78
238.75
140,400
Oct 14, 2025
235.05
243.65
235.05
239.13
239.10
252,500
Oct 13, 2025
233.62
238.58
233.62
236.75
236.72
139,600
Oct 10, 2025
241.58
244.03
230.26
230.78
230.75
182,900
Oct 9, 2025
243.81
245.93
239.54
241.83
241.80
109,100
Oct 8, 2025
241.63
245.50
238.43
242.13
242.10
177,400
Oct 7, 2025
246.20
246.20
239.26
239.95
239.92
192,300
Oct 6, 2025
243.21
245.98
239.07
244.90
244.87
170,800
Oct 3, 2025
238.22
243.82
237.26
243.04
243.01
437,000
Oct 2, 2025
231.30
236.64
230.10
236.55
236.52
187,600
Oct 1, 2025
236.85
236.85
230.89
231.01
230.98
219,300
Sep 30, 2025
238.93
240.70
236.41
238.43
238.40
144,100
Sep 29, 2025
240.73
240.73
237.26
238.73
238.70
145,400
Sep 26, 2025
238.38
241.02
238.21
239.04
239.01
179,800
Sep 25, 2025
235.27
238.26
235.23
237.66
237.63
134,500
Sep 24, 2025
242.05
243.60
235.97
237.24
237.21
230,800
Sep 23, 2025
246.14
250.15
240.80
241.85
241.82
324,300
Sep 22, 2025
242.37
245.00
240.09
244.01
243.98
211,600
Sep 19, 2025
244.52
245.34
242.08
242.87
242.84
328,700
Sep 18, 2025
240.00
245.97
238.30
244.34
244.31
268,000
Sep 17, 2025
235.74
240.79
234.92
238.28
238.25
346,000
Sep 16, 2025
235.00
236.83
233.69
234.78
234.75
250,100
Sep 15, 2025
236.11
238.14
233.69
234.88
234.85
224,100
Sep 12, 2025
235.97
238.29
235.16
236.11
236.08
206,400
Sep 11, 2025
231.25
237.18
231.25
235.96
235.93
275,000
Sep 10, 2025
232.13
234.62
230.28
232.44
232.41
157,800
Sep 9, 2025
230.79
233.18
229.65
231.96
231.93
197,200
Sep 8, 2025
229.00
231.39
229.00
231.19
231.16
132,300
Sep 5, 2025
233.37
235.00
228.53
230.28
230.25
119,600
