Avantor, Inc AVTR

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Avantor, 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 13.02 → 10.95 · -15.9%
15.60011.5057.410 1,2 3 4 5,6 7,8 9 10 11 12,13 14,15 16,17 18 19 20,21 22 23 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
11.0000 11.0850 10.7450 10.9500 7,261,897
10.2850 11.0300 10.1900 10.9900 11,084,900
10.9800 11.1200 10.5900 10.6600 9,382,900
Weekend
Weekend
23 · 8-K After-hours · 16:44 ET 8-K ↗
11.1000 11.3060 10.8850 11.0700 10,851,900
11.2200 11.4300 11.1300 11.2600 13,194,200
11.3600 11.4700 11.1150 11.2000 10,302,500
10.5600 11.3200 10.4200 11.2900 13,328,000
10.3300 10.6150 10.3100 10.5600 6,526,500
Weekend
Weekend
10.6000 10.6400 10.3650 10.3900 6,655,000
9.7600 10.6650 9.7250 10.5100 9,119,500
10.0800 10.1500 9.7450 9.7600 6,986,800
10.4900 10.5700 10.0450 10.2000 6,932,100
10.3500 10.5400 10.1300 10.3700 7,512,100
Weekend
Weekend
No trading
10.1000 10.3200 10.0500 10.3200 8,326,600
10.0000 10.3000 9.7800 10.0100 10,706,500
10.1000 10.1500 9.8700 9.9000 6,502,700
10.3000 10.3000 9.8200 10.0300 8,632,200
Weekend
Weekend
10.0300 10.4000 10.0300 10.2800 10,622,400
9.9100 10.2500 9.8400 10.0800 9,120,800
9.6100 9.8700 9.4400 9.6900 7,910,300
9.3800 9.5200 9.1500 9.4300 11,462,900
9.5000 9.6200 9.3500 9.3500 7,390,700
Weekend
Weekend
No trading
9.3500 9.6700 9.3500 9.5800 8,042,200
9.6450 9.7800 9.3600 9.4600 7,909,600
9.7100 9.8200 9.5450 9.5700 5,365,900
9.6000 9.8900 9.5300 9.7100 8,349,700
Weekend
Weekend
9.7400 9.7900 9.3500 9.3900 8,268,000
9.6700 9.7000 9.4000 9.6600 5,206,600
10.0600 10.0600 9.6100 9.6500 7,301,500
9.5700 10.0500 9.5200 9.9100 14,078,600
9.2500 10.0050 9.2000 9.6900 17,367,200
Weekend
Weekend
9.5300 9.5300 9.0400 9.1600 9,534,000
9.1100 9.6200 9.1100 9.5200 11,111,300
8.8600 9.1350 8.8250 9.0700 6,709,300
8.7900 9.0400 8.7100 8.9900 10,131,100
8.9700 9.3300 8.8600 9.1900 13,033,100
Weekend
Weekend
9.0100 9.3800 8.9240 9.1200 13,814,300
8.4200 9.3000 8.4200 9.1500 13,511,900
8.2600 8.4550 8.2100 8.4000 9,114,400
8.0800 8.1550 7.9400 8.1400 8,443,200
No trading
Weekend
Weekend
7.8400 8.1300 7.8100 8.1200 7,217,600
7.8500 7.9300 7.6900 7.8700 6,345,200
7.6400 7.8950 7.4240 7.8800 22,537,100
7.6600 7.8000 7.4950 7.6400 8,684,900
7.6600 7.7600 7.5750 7.6000 8,911,100
Weekend
Weekend
7.9200 8.0150 7.6100 7.6200 7,960,000
7.9100 8.0500 7.7100 7.9400 11,138,200
8.0800 8.1500 7.8350 7.8700 9,127,900
22 · 8-K After-hours · 16:32 ET 8-K ↗
8.1000 8.2100 8.0100 8.1700 9,756,100
8.3000 8.3000 7.9500 7.9700 6,731,100
Weekend
Weekend
8.3200 8.3950 8.1000 8.3100 14,978,200
8.4900 8.5800 8.2250 8.3100 11,258,100
8.4000 8.5750 8.2700 8.4300 8,140,700
8.0800 8.2600 7.9250 8.0500 5,471,300
7.9200 8.0150 7.7250 7.9900 7,142,100
Weekend
Weekend
8.1300 8.2200 7.8500 7.9600 9,500,700
7.8600 8.2850 7.7200 8.1000 14,657,600
8.5000 8.5550 7.4750 7.8500 17,429,200
21 · 10-Q Pre-market · 09:02 ET 10-Q ↗ 20 · 8-K Pre-market · 06:10 ET 8-K ↗
7.9700 8.1000 7.8000 7.8600 8,439,000
7.8900 8.0600 7.8250 7.9700 7,430,700
Weekend
Weekend
7.7600 7.9150 7.5950 7.9000 8,504,600
19 · 8-K After-hours · 17:07 ET 8-K ↗
8.1400 8.2950 7.4600 7.7600 11,277,600
8.5800 8.6200 8.2200 8.2800 9,152,500
8.5300 8.8500 8.4550 8.5300 9,642,100
8.4500 8.5400 8.2800 8.5000 10,593,100
Weekend
Weekend
8.3900 8.5700 8.3150 8.5200 11,956,900
8.3900 8.4200 8.1900 8.2600 7,865,600
8.2800 8.4850 8.2600 8.3700 16,308,200
8.1300 8.3700 8.1200 8.2000 6,271,000
7.8200 8.2100 7.8200 8.1800 5,188,000
Weekend
Weekend
7.9700 8.0300 7.8100 7.9000 4,591,100
7.9700 8.0400 7.6450 7.9200 8,791,600
8.3800 8.4900 7.9850 8.0000 9,879,400
7.9200 8.0990 7.8600 8.0000 7,946,100
7.7800 7.9950 7.7300 7.9800 5,914,400
Weekend
Weekend
No trading
7.7300 8.0650 7.5900 7.9000 5,095,100
7.6600 7.9400 7.5500 7.7700 7,917,100
18 · 8-K Pre-market · 08:06 ET 8-K ↗
7.7500 7.9400 7.6100 7.8400 5,781,500
7.4800 7.7000 7.4200 7.5900 7,855,000
Weekend
Weekend
7.5900 7.6500 7.2650 7.4100 7,061,700
17 · DEFA14A Pre-market · 07:43 ET DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS ↗ 16 · DEF 14A Pre-market · 07:40 ET DEFINITIVE PROXY STATEMENT ↗
7.5900 7.8400 7.5500 7.6700 7,377,500
7.8100 7.9300 7.5350 7.6900 6,068,100
7.3900 7.8500 7.3800 7.7300 9,636,200
7.7700 7.8150 7.5450 7.5900 11,974,400
Weekend
Weekend
7.5800 7.7050 7.3850 7.5100 12,425,800
7.6600 7.8150 7.4600 7.6100 8,276,900
7.6700 7.8000 7.6050 7.7000 6,905,600
7.7100 7.9550 7.6000 7.8000 8,198,000
7.9600 8.0200 7.5750 7.6100 11,433,100
Weekend
Weekend
7.9600 8.0550 7.8600 7.9300 10,373,500
8.4500 8.5400 7.8650 7.9000 12,441,500
8.1300 8.4200 8.1100 8.2900 9,676,200
8.1100 8.2200 7.8450 8.1500 13,190,600
8.0500 8.2400 7.8200 8.1500 10,495,700
Weekend
Weekend
8.2600 8.4100 8.1350 8.1700 11,645,700
8.5500 8.8500 8.4100 8.5200 14,998,700
8.8000 8.8900 8.5900 8.6500 10,179,600
8.5400 8.8300 8.4250 8.7800 11,909,700
8.8000 8.9000 8.6600 8.8100 8,335,200
Weekend
Weekend
8.8700 9.0600 8.7800 9.0500 6,680,400
9.1500 9.1500 8.8000 9.0100 7,510,900
15 · 8-K/A After-hours · 16:36 ET 8-K/A ↗ 14 · 8-K/A After-hours · 16:35 ET 8-K/A ↗
9.1300 9.1600 8.9050 9.0600 6,931,700
8.9100 9.1550 8.9100 9.1100 9,556,900
8.9200 9.0280 8.8300 8.8900 11,904,200
Weekend
Weekend
9.2800 9.2800 8.9800 9.0300 11,429,300
9.1500 9.2600 9.0050 9.2100 8,486,700
9.0300 9.3200 9.0000 9.2700 7,971,800
9.0200 9.2200 8.9650 9.0500 8,614,400
No trading
Weekend
Weekend
9.5200 9.7700 9.0000 9.2000 13,259,800
9.5000 9.5800 8.9600 9.1400 20,877,200
8.9000 9.8600 8.8950 9.6400 35,978,300
13 · 8-K Pre-market · 07:40 ET 8-K ↗ 12 · 10-K Pre-market · 07:34 ET 10-K ↗
11.3400 11.3400 11.0400 11.1600 28,623,300
11.1200 11.3450 10.9750 11.2300 8,899,000
Weekend
Weekend
11.1500 11.2600 10.9200 11.2600 10,502,600
11.1000 11.2000 10.6700 10.7900 11,567,400
11.0400 11.2550 10.8950 11.1400 18,159,900
10.9400 11.3350 10.7200 10.8500 14,232,700
10.7900 11.0950 10.7860 11.0700 10,137,600
Weekend
Weekend
10.7200 10.9800 10.7000 10.9200 11,217,300
11.0100 11.0100 10.6700 10.8100 20,130,900
11.6200 11.6400 11.0150 11.0500 18,816,900
11.6000 11.8900 11.4800 11.6500 12,203,000
11.8100 11.9100 11.7650 11.7900 16,577,900
Weekend
Weekend
12.0800 12.2200 11.6900 11.8000 15,171,700
12.2900 12.5100 12.2100 12.2400 18,517,100
11.9400 12.2250 11.8500 12.2100 7,818,200
11.8600 12.1250 11.7400 11.8500 10,313,200
No trading
Weekend
Weekend
11.9800 12.2100 11.8700 12.1600 9,206,000
12.3600 12.3900 11.7800 12.0200 10,710,100
12.6600 12.9000 11.9150 12.3800 14,403,600
12.5000 12.8400 12.0850 12.6000 10,610,000
12.4200 12.5500 12.1800 12.2800 9,019,000
Weekend
Weekend
12.2400 12.4200 11.9300 12.4100 8,264,600
11.9600 12.2250 11.8400 12.0600 15,539,400
12.2500 12.3160 12.0000 12.0800 9,368,600
11.9000 12.3750 11.8900 12.2700 11,444,000
11.2800 11.9500 11.2700 11.8900 10,648,400
Weekend
Weekend
11.5200 11.6200 11.4200 11.4600 6,948,400
No trading
11.4500 11.6000 11.4100 11.4600 5,767,800
11.3500 11.5750 11.3400 11.4700 4,490,400
11.4200 11.4900 11.3000 11.3800 5,484,400
Weekend
Weekend
11.2700 11.4500 11.2300 11.4300 6,512,200
No trading
11.2300 11.3100 11.0950 11.2800 9,901,300
11.2400 11.2800 11.0800 11.2700 14,504,900
11.3400 11.5300 11.1550 11.2400 21,633,800
Weekend
Weekend
11.1300 11.3600 11.0650 11.2700 16,352,700
11.1500 11.3950 11.0450 11.0700 10,558,500
11 · 8-K Pre-market · 08:17 ET 8-K ↗
10.9600 11.5300 10.9150 11.1000 9,290,600
11.3300 11.3400 10.9850 11.2000 11,127,100
11.2000 11.2900 10.9350 11.2800 11,207,300
Weekend
Weekend
11.4400 11.5200 11.1300 11.1700 9,440,200
11.2800 11.4700 11.0900 11.4700 11,374,100
11.1050 11.5650 10.7950 11.5100 14,862,200
10.6900 10.9550 10.6200 10.6300 11,201,700
10.8800 10.9450 10.6200 10.7100 11,218,500
Weekend
Weekend
11.1500 11.2100 10.9000 10.9300 10,045,600
10 · 8-K After-hours · 16:29 ET 8-K ↗
11.3000 11.3300 10.9650 11.1500 8,739,000
11.7400 11.7850 11.2800 11.2900 11,205,600
11.6300 11.8100 11.5800 11.6400 5,666,600
11.6700 11.8650 11.6000 11.7500 7,611,200
Weekend
Weekend
11.7500 11.8900 11.7000 11.7300 4,511,000
No trading
11.7600 11.8500 11.5900 11.7400 6,606,900
11.5400 11.8850 11.5100 11.8500 8,435,700
11.4400 11.5700 11.3300 11.5100 7,716,500
Weekend
Weekend
11.0800 11.5650 10.9700 11.5200 6,432,000
10.9600 11.1400 10.8730 10.9900 7,138,500
11.0900 11.1200 10.8600 11.0100 10,686,400
11.0800 11.3500 10.9200 11.1400 10,327,100
11.3700 11.3700 10.8500 10.8800 11,379,000
Weekend
Weekend
11.5700 11.7400 11.1800 11.3800 8,241,500
11.4200 11.7600 11.4200 11.7000 7,909,600
11.4700 11.7300 11.3200 11.5500 6,338,200
11.5100 11.7400 11.4100 11.5000 6,469,500
9 · 8-K After-hours · 17:11 ET 8-K ↗
11.6000 11.6600 11.3250 11.5000 6,723,500
Weekend
Weekend
11.2000 11.5600 11.1200 11.5500 7,610,400
11.4400 11.8200 11.0700 11.3200 11,619,800
11.4400 11.7050 11.3150 11.5800 8,645,200
11.3900 11.7650 11.3860 11.5800 10,000,300
11.7600 11.7650 11.4300 11.6800 12,399,900
Weekend
Weekend
10.9800 11.9050 10.8250 11.8200 18,937,100
11.3300 11.5800 10.8700 11.0500 25,623,300
12.4200 13.4350 11.5400 11.5800 35,724,300
8 · 10-Q Pre-market · 09:01 ET 10-Q ↗ 7 · 8-K Pre-market · 06:13 ET 8-K ↗
15.1100 15.1900 14.8450 15.0800 18,544,000
15.4000 15.4600 14.8750 15.1100 15,238,700
Weekend
Weekend
15.6100 15.7600 15.3900 15.4000 8,903,600
15.2300 15.6000 15.2300 15.4600 9,199,900
15.5000 15.8900 15.1300 15.1600 8,577,500
15.6500 15.9300 15.3700 15.6000 11,737,600
14.9800 15.2500 14.8300 15.1800 10,501,000
Weekend
Weekend
14.5000 14.8300 14.4500 14.7800 13,169,900
14.1000 14.7650 13.9810 14.5700 18,520,400
13.7700 14.0400 13.7100 13.8700 9,387,900
6 · 8-K After-hours · 16:46 ET 8-K ↗
13.6000 14.1200 13.4700 13.9100 9,079,900
5 · 8-K Pre-market · 08:37 ET 8-K ↗
13.5200 13.9600 13.4300 13.7800 10,771,000
Weekend
Weekend
13.6500 13.6500 13.1200 13.4000 8,683,600
13.6300 13.8000 13.4800 13.5400 6,642,600
13.5700 13.9050 13.4400 13.7500 7,990,000
14.1600 14.1900 13.4300 13.4700 11,190,900
14.2500 14.3200 13.9850 14.0900 7,193,900
Weekend
Weekend
14.0000 14.5150 13.8050 14.2900 12,206,000
4 · 8-K Pre-market · 08:35 ET 8-K ↗
13.7100 13.8950 13.5500 13.7700 12,765,500
12.5100 13.7550 12.4400 13.6700 17,413,600
11.8000 12.5150 11.6600 12.4800 12,538,000
11.8800 11.9150 11.6500 11.8400 8,989,800
Weekend
Weekend
11.7600 11.9600 11.7600 11.8400 6,977,300
11.9300 11.9900 11.7150 11.7800 7,874,300
12.1800 12.2900 11.9850 12.0100 7,461,400
12.5300 12.5700 12.2300 12.2400 7,289,900
12.3700 12.5250 12.2500 12.4500 7,813,200
Weekend
Weekend
12.8600 12.9400 12.3550 12.5000 15,922,000
12.5800 12.9900 12.5400 12.8600 5,541,800
12.7400 12.9000 12.3200 12.4000 8,572,700
12.4100 12.7750 12.3100 12.7100 8,410,400
12.3300 12.4450 12.2200 12.3900 8,003,400
Weekend
Weekend
13.0000 13.0100 12.3000 12.3100 6,201,500
12.6900 13.0400 12.6700 13.0100 16,021,000
12.7200 12.9800 12.6100 12.6100 9,854,900
13.1200 13.1200 12.8300 12.8300 5,926,600
13.1700 13.2000 12.8800 13.1300 6,183,900
Weekend
Weekend
13.2300 13.5900 13.2300 13.3100 7,671,900
12.8200 13.2100 12.5700 13.1900 8,699,300
13.1400 13.3100 12.8100 12.8200 8,678,700
13.3000 13.4000 13.0150 13.2900 9,775,200
No trading
Weekend
Weekend
13.2000 13.5800 13.1500 13.4700 8,423,800
13.1500 13.2550 12.8850 13.2100 10,229,500
13.2300 13.3900 13.0500 13.1900 11,408,100
13.1400 13.3200 12.9700 13.3000 56,686,000
13.9600 13.9900 13.0700 13.2100 10,798,300
Weekend
Weekend
12.7200 13.3000 12.6300 13.2700 7,762,000
12.7300 12.7900 12.4800 12.5600 5,891,400
12.9400 12.9950 12.7700 12.8800 8,554,000
12.8800 13.0900 12.7800 12.9800 6,302,100
12.9200 13.0700 12.7600 12.7600 10,594,400
Weekend
Weekend
13.0800 13.1900 12.7300 12.9300 8,953,000
12.9000 13.0600 12.7900 12.9800 6,214,800
3 · 8-K After-hours · 17:03 ET 8-K ↗
12.6300 13.1500 12.5900 13.0700 11,423,000
12.1700 12.7450 12.1050 12.6600 11,001,200
12.5100 12.6000 11.9400 12.1000 16,323,100
Weekend
Weekend
11.2800 11.5100 11.1150 11.5000 11,660,000
11.3500 11.4200 11.0250 11.3800 14,203,500
11.5000 11.6380 11.1550 11.1800 11,028,600
11.3900 11.9100 11.2500 11.6400 18,404,600
11.4100 11.5300 11.1200 11.3000 24,849,100
Weekend
Weekend
11.9400 12.2400 10.8250 11.3600 59,922,100
2 · 10-Q Pre-market · 09:00 ET 10-Q ↗ 1 · 8-K Pre-market · 06:13 ET 8-K ↗
13.5700 13.7950 13.4400 13.4400 17,388,600
14.0600 14.1400 13.6550 13.8000 12,681,800
14.0000 14.1600 13.8350 14.0100 9,904,600
14.3000 14.3000 13.9450 13.9900 12,246,600
Weekend
Weekend
14.0600 14.2850 13.8300 14.2100 11,934,900
13.5800 14.1900 13.5300 14.0100 16,049,600
13.5300 13.7500 13.3300 13.6000 16,674,100
12.4000 13.1100 12.3950 13.0200 13,361,100

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.

23 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:44 ET Summarise
22 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
21 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 09:02 ET Summarise
20 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:10 ET Summarise
19 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:06 ET Summarise
17 DEFA14A DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS (opens SEC filing in a new tab) Pre-market · 07:43 ET Summarise
16 DEF 14A DEFINITIVE PROXY STATEMENT (opens SEC filing in a new tab) Pre-market · 07:40 ET Summarise
15 8-K/A 8-K/A (opens SEC filing in a new tab) After-hours · 16:36 ET Summarise
14 8-K/A 8-K/A (opens SEC filing in a new tab) After-hours · 16:35 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:40 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) Pre-market · 07:34 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:17 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:29 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:11 ET Summarise
8 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 09:01 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:13 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:46 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:37 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:35 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:03 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:13 ET Summarise