Acadian Asset Management Inc AAMI

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Acadian Asset Management Inc. Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 39.51 → 82.32 · 108.4%
83.95061.73039.510 1 2 3 4 5 6 7 8,9 10 11 12 13 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 22 Jul 2025 — 23 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
83.1100 85.0590 81.9900 82.3200 266,455
82.6800 84.9700 82.6000 83.9500 353,800
83.3300 84.3100 82.0500 82.1500 284,400
Weekend
Weekend
81.1800 83.5750 79.7500 82.7900 335,700
82.4600 83.9400 81.3260 83.2700 492,900
82.2300 83.2000 81.1400 83.0700 389,500
78.9400 81.1720 78.9400 80.6200 340,900
81.4000 81.6250 78.2100 78.8100 416,100
Weekend
Weekend
81.3100 82.4970 81.3100 81.6600 430,800
78.2800 81.0600 77.9100 80.3800 395,600
77.8500 79.0000 76.9300 77.3900 311,200
78.3100 79.2600 77.5400 78.2800 448,300
73.8000 79.4300 72.6600 79.1500 729,800
Weekend
Weekend
No trading
73.2900 75.1450 72.0700 73.0900 388,400
71.3300 74.1900 70.9850 71.9800 474,000
71.2800 71.9800 70.4800 71.5200 467,600
72.6500 73.0000 69.9200 71.1700 447,900
Weekend
Weekend
71.7900 73.0000 70.2950 72.2000 1,412,900
71.3300 72.4700 69.2900 69.7700 741,300
72.8900 72.9000 69.9700 70.3800 605,700
71.8300 74.5400 71.8100 73.0100 443,100
74.9600 75.8400 73.4000 73.8900 718,600
Weekend
Weekend
No trading
75.8800 76.1350 69.5200 75.1500 2,999,600
82.8800 85.7300 82.5900 82.7200 470,600
81.3700 82.9400 80.9200 82.3300 397,000
80.0400 83.8030 79.1400 80.5700 871,300
Weekend
Weekend
77.7300 79.1500 76.9000 78.5400 246,300
13 · 8-K After-hours · 16:22 ET 8-K ↗
77.1300 79.0600 75.9800 77.7000 340,600
76.4900 78.6200 75.4450 76.0800 257,400
78.1100 79.0000 75.7000 77.3400 361,700
76.2200 77.3800 74.7900 77.0300 484,500
Weekend
Weekend
74.7000 75.1900 72.8700 74.0000 306,200
72.5100 75.9900 72.5000 75.8200 327,600
73.2500 73.2500 70.6500 72.2600 455,300
72.3000 73.7900 72.2600 72.7000 272,600
72.0200 73.2200 71.3700 72.3000 295,600
Weekend
Weekend
73.0500 73.1550 71.7500 72.3100 409,900
73.8500 74.0600 72.2200 72.7100 358,600
75.3300 75.7700 73.5900 74.5000 664,000
72.5800 76.1300 71.8000 75.4800 619,500
No trading
Weekend
Weekend
73.5900 74.5200 71.5300 71.5800 529,400
70.2700 72.6200 69.6300 72.5700 405,900
68.7100 71.4700 68.0650 71.1200 661,500
68.7000 69.0700 67.6900 68.1100 385,800
12 · 8-K Pre-market · 08:46 ET 8-K ↗
68.8200 71.1400 68.2650 69.3400 348,800
Weekend
Weekend
70.1500 70.6100 67.2400 68.8200 294,400
70.4000 71.2400 69.5600 71.2200 406,100
70.4300 71.2950 69.8800 70.2200 506,100
71.7200 72.2950 69.1300 70.5300 290,500
69.0500 73.1000 69.0000 72.3800 529,400
Weekend
Weekend
67.2000 69.0000 66.3200 68.6300 259,300
67.8200 68.0700 66.4100 66.5300 245,100
11 · 10-Q Pre-market · 07:52 ET 10-Q ↗
69.1400 69.4700 67.7100 67.8900 269,100
68.0100 68.3900 67.1800 68.3400 333,100
65.3800 67.9700 65.3800 67.5500 433,000
Weekend
Weekend
67.5100 68.3400 63.6700 65.4900 525,300
64.9500 68.5900 62.4800 67.3500 574,000
10 · 8-K Pre-market · 07:31 ET 8-K ↗ 9 · DEFA14A After-hours · 16:14 ET DEFA14A ↗ 8 · DEF 14A After-hours · 16:07 ET DEF 14A ↗
66.8600 66.8600 64.9550 65.0800 493,200
67.4600 67.7100 65.7600 66.9100 313,100
67.7200 68.6300 67.7200 68.1800 276,200
Weekend
Weekend
67.1300 68.1600 66.2100 67.7800 209,400
67.7200 68.4300 66.6000 66.9400 187,400
66.4900 69.8700 66.4750 67.6700 382,700
66.8700 67.9750 65.5950 65.7800 270,300
66.6600 67.6250 66.6600 66.7000 238,200
Weekend
Weekend
67.6900 68.8200 66.6500 66.7100 395,100
66.6800 67.5750 65.9600 66.4100 289,500
64.7300 66.7200 64.5500 66.6900 331,000
64.0000 65.7600 63.6700 64.9700 403,300
61.0600 63.4500 61.0250 63.4400 323,300
Weekend
Weekend
61.8100 62.0700 61.0700 61.9300 288,000
59.0000 62.2500 59.0000 61.8600 507,400
59.1800 60.2400 58.1600 59.4300 554,800
55.6400 56.7100 54.9300 56.2700 284,500
55.2800 56.0350 54.7350 55.9900 259,100
Weekend
Weekend
No trading
54.5000 55.3850 51.8500 55.2800 328,400
55.5100 58.3550 55.1300 56.2000 519,200
53.3100 54.4400 51.9900 54.4200 314,600
53.0000 54.0300 51.9100 52.2800 187,200
Weekend
Weekend
53.9700 54.6200 52.2100 52.2200 172,800
53.2200 54.6250 53.2200 54.4400 230,200
52.9100 54.0100 52.7300 53.8800 186,900
51.3500 52.3300 51.2100 51.9400 239,300
52.4800 53.3900 51.5900 52.1300 253,200
Weekend
Weekend
52.1300 52.3100 50.3900 50.8300 567,900
49.3100 52.0800 49.3100 52.0500 328,800
50.3400 51.0000 50.1600 50.2100 289,600
51.4900 52.0250 51.0000 51.1100 249,200
51.0700 51.8900 50.5400 50.7300 214,300
Weekend
Weekend
50.5900 51.4250 49.9800 50.4300 261,100
49.5000 50.3000 49.0500 50.2900 318,300
51.0000 51.6700 50.1300 50.7200 173,900
51.7900 52.7550 50.7900 51.5600 203,800
50.1700 51.7300 49.2600 51.5600 271,500
Weekend
Weekend
51.8300 51.8300 50.0900 51.1800 273,100
53.9800 54.6200 52.2550 53.4100 365,100
54.4300 55.1000 53.6300 54.6800 328,500
52.6100 54.2900 51.1800 53.7800 308,100
52.7200 55.5700 52.4050 54.9500 263,800
Weekend
Weekend
7 · 10-K After-hours · 16:29 ET 10-K ↗
55.2000 55.2000 52.4600 53.8600 442,700
56.7700 57.0250 54.2700 55.7800 274,900
55.0000 56.9700 53.9000 56.4300 376,400
52.4100 54.6800 51.9700 54.3700 366,900
52.7000 53.3900 51.3300 52.4400 364,500
Weekend
Weekend
52.6200 53.2950 51.8300 53.2300 223,500
52.0400 52.9300 51.2300 52.8900 161,700
52.2400 53.5000 52.2400 52.7200 119,300
51.9800 52.3700 51.3100 51.9400 179,800
No trading
Weekend
Weekend
51.7800 52.2500 50.2000 51.8500 145,600
52.5600 53.2700 51.0750 52.3100 284,100
51.7400 52.5100 50.8000 51.9200 281,400
51.7600 52.0300 50.7200 51.6200 257,600
50.9700 53.0000 50.9700 51.8600 274,000
Weekend
Weekend
49.9300 51.5200 49.3750 50.9800 405,200
50.9700 51.5100 45.8500 48.5200 665,200
6 · 8-K Pre-market · 08:39 ET 8-K ↗
52.1200 52.9800 50.7520 52.5100 414,700
56.2000 56.2000 50.4050 51.6700 376,600
55.4900 56.4600 55.0700 55.8500 187,000
Weekend
Weekend
54.4000 56.0900 54.0500 55.4200 429,100
55.6600 55.9000 54.5000 55.1300 238,100
56.0800 56.2950 55.2580 55.2900 188,800
55.5700 55.8200 54.9700 55.5700 106,300
55.1900 55.9600 54.3650 55.4000 191,500
Weekend
Weekend
55.2400 55.6800 54.3700 55.1900 310,000
55.5300 56.2900 55.1000 55.5800 251,900
54.1900 55.3800 53.8550 54.9200 208,500
53.0200 54.3600 52.0000 53.9900 205,100
No trading
Weekend
Weekend
54.6800 54.9900 53.9250 54.4300 190,700
52.9900 55.1000 52.9900 54.5200 202,700
52.5000 53.0300 51.5800 52.7400 168,600
52.5700 53.0400 51.1200 52.6200 204,500
50.7500 52.7100 49.2290 52.5200 207,300
Weekend
Weekend
50.8800 51.6000 50.4000 51.3700 199,900
48.1500 50.9700 47.8850 50.8500 320,800
49.5200 49.5500 47.6500 48.4700 158,400
49.0000 50.2290 48.3300 49.6700 247,000
47.6000 50.9500 47.6000 49.2800 338,900
Weekend
Weekend
46.8400 47.7700 46.4850 47.3800 159,100
No trading
47.6300 47.8600 46.7500 47.0000 124,600
47.8600 48.2300 47.4900 47.5400 120,000
48.2300 48.4600 47.2000 48.0700 125,700
Weekend
Weekend
48.5700 49.0000 48.2800 48.3800 106,200
No trading
48.3700 48.7100 48.2300 48.4100 44,600
47.7000 48.6500 47.7000 48.5700 366,400
47.7000 48.4500 47.4250 48.1400 154,200
Weekend
Weekend
47.5200 48.2030 47.3300 47.5400 375,700
47.4500 48.8400 47.1700 47.6600 287,900
48.0800 48.5150 46.0200 46.8800 259,100
47.7500 48.7700 47.5050 47.9200 232,100
48.1800 48.8400 47.2700 47.6600 227,100
Weekend
Weekend
49.1800 49.2900 47.3200 47.6900 388,600
47.7900 49.3800 47.2100 49.2200 351,000
46.2600 48.7250 46.0240 48.1000 321,500
45.7900 47.1350 45.6680 46.4400 200,500
47.0400 47.0400 46.0400 46.0700 265,600
Weekend
Weekend
46.0800 47.0430 45.9900 46.7800 301,900
44.6400 46.7300 43.9200 46.4100 280,200
43.6500 45.1800 43.5050 45.1100 196,800
43.9700 44.3600 43.1730 43.6500 160,800
44.3500 45.1100 43.6500 43.8500 215,100
Weekend
Weekend
45.3400 45.4800 44.8100 44.8400 71,600
No trading
44.9200 45.8850 44.8400 45.1600 262,800
5 · 8-K After-hours · 16:58 ET 8-K ↗
44.6500 45.2600 44.2200 44.8900 158,600
43.1400 44.5000 42.9300 44.3300 225,600
Weekend
Weekend
43.1600 43.9500 42.1600 43.3000 236,900
43.0900 44.0000 42.6750 43.0400 342,400
42.6200 42.6700 41.5600 42.1800 156,100
41.9900 42.5600 41.4700 42.3700 212,600
43.6200 44.1400 41.8100 41.9300 129,200
Weekend
Weekend
42.9100 44.3100 42.4900 43.9000 157,900
44.4900 44.4900 42.8150 43.2500 194,700
44.1000 45.2350 44.1000 44.5400 247,300
44.8800 45.5250 43.6700 43.9800 126,000
45.1700 46.8800 44.5800 45.2200 153,300
Weekend
Weekend
44.0300 44.5600 42.6100 44.4700 265,000
42.8100 44.2000 42.6200 43.6800 259,600
4 · 10-Q Pre-market · 07:27 ET 10-Q ↗
43.6900 44.3950 42.6400 43.6000 262,900
45.6300 46.0050 43.0650 43.1700 374,000
47.8200 48.1300 45.3400 46.2200 337,000
Weekend
Weekend
49.2000 49.4550 47.7460 48.1000 353,600
51.0000 54.9900 49.6650 49.7000 719,000
3 · 8-K Pre-market · 07:53 ET 8-K ↗
49.5900 50.1650 48.5500 49.2600 290,200
49.1100 50.1000 49.1100 49.5200 240,600
48.1100 49.7200 47.4650 49.5300 261,100
Weekend
Weekend
47.7900 48.3700 47.4700 48.1900 132,500
47.2400 47.4600 46.7600 47.1400 107,400
46.9800 47.4600 46.6800 47.1700 199,000
47.1000 47.7800 46.9600 47.5900 107,600
46.6100 47.6450 46.6100 47.2800 140,800
Weekend
Weekend
45.4500 46.5800 44.5700 46.3500 188,900
47.7300 47.7800 45.6900 45.7100 172,500
48.2400 48.8800 47.2100 47.5800 210,900
45.4000 47.7100 45.4000 47.6300 210,800
44.3400 46.1700 44.2600 46.0900 249,600
Weekend
Weekend
44.8700 45.5700 44.0050 44.2200 191,900
44.1000 44.7700 43.7500 44.6400 214,700
44.7500 44.7500 43.7500 44.1700 238,000
44.8100 45.4100 44.2400 44.4600 421,400
46.5500 46.7450 44.9600 45.0100 222,100
Weekend
Weekend
46.3000 47.4450 45.5200 46.2400 230,200
46.5100 46.8800 46.0230 46.2200 177,800
47.8700 48.4650 46.2300 46.2400 212,100
49.2600 49.7000 47.9350 48.1600 238,400
48.8600 49.4000 48.6300 49.0000 189,000
Weekend
Weekend
48.4100 49.3200 48.3600 48.9400 248,900
47.5800 48.2300 46.8800 48.0500 236,000
49.1700 49.4600 47.5540 47.6300 205,200
48.8400 49.9100 48.3900 48.4400 222,200
50.4600 50.4600 48.5500 48.8000 347,200
Weekend
Weekend
49.8400 49.8400 48.7400 48.8600 854,500
48.4600 50.3100 48.2800 50.0000 272,100
48.6900 49.2150 48.1300 48.3400 196,600
48.3000 48.8850 47.8750 48.5000 312,600
48.7100 49.3050 47.8900 48.3700 313,600
Weekend
Weekend
48.2900 48.7600 47.7400 48.5700 260,000
46.8700 48.4000 46.5450 48.3000 418,200
46.7500 47.0300 46.3300 46.5800 308,400
45.1900 46.9400 44.7850 46.5400 544,500
44.8700 45.3600 44.2900 44.8500 598,200
Weekend
Weekend
42.6500 45.0750 42.1500 44.4600 955,000
46.0200 47.0000 41.9300 42.6100 1,493,600
50.3800 50.8200 49.6600 50.1900 313,900
50.1100 51.2500 49.1700 50.4800 237,100
No trading
Weekend
Weekend
51.3500 51.3500 50.1550 50.9700 196,400
51.0400 51.6450 50.1500 51.2700 200,500
50.9700 51.2000 49.8300 50.6400 268,300
50.0600 51.2050 49.4100 51.1800 244,300
48.9100 50.8250 48.7650 50.2300 227,200
Weekend
Weekend
47.3800 49.4680 47.2000 48.9800 476,600
46.6300 47.3400 45.7900 47.1700 132,900
46.9900 47.2000 45.8800 46.7800 172,200
48.6400 48.7250 46.6400 47.1700 204,300
47.0900 48.1350 47.0900 47.8100 177,500
Weekend
Weekend
47.2000 47.3700 46.1300 47.0400 325,200
47.5300 47.8850 46.7100 47.1400 151,800
47.9700 48.4500 47.1500 47.9500 194,900
45.7200 47.9100 45.6950 47.7800 259,500
44.6400 45.3900 44.5800 45.3400 209,200
Weekend
Weekend
44.7200 45.2100 44.6050 44.6500 175,200
45.9700 46.1800 43.8900 44.3000 180,000
2 · 10-Q Pre-market · 07:49 ET 10-Q ↗
44.4500 45.8100 44.0000 45.8000 319,000
41.1800 44.6100 40.9050 44.5400 437,500
39.8200 40.8750 39.7500 40.6200 274,500
Weekend
Weekend
40.6800 40.9720 39.1990 39.5800 375,100
40.0000 42.6300 39.2000 41.7900 540,200
1 · 8-K Pre-market · 07:33 ET 8-K ↗
39.7800 40.2000 39.2100 39.6400 303,400
40.2700 40.2700 39.4220 39.7500 175,200
39.7500 40.2500 39.6500 39.8600 191,400
Weekend
Weekend
39.7200 39.9500 39.6200 39.9200 126,900
40.0000 40.3500 39.9200 39.9500 144,400
39.6600 40.2500 39.6600 40.0300 148,400
39.1800 39.5900 38.6910 39.5100 193,100

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

13 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:46 ET Summarise
11 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:52 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:31 ET Summarise
9 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:14 ET Summarise
8 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
7 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:29 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:39 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:58 ET Summarise
4 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:27 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:53 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:49 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:33 ET Summarise