Merck & Company, Inc. Common Stock (new) MRK

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Merck & Company, Inc. Common Stock (new) · 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 81.61 → 127.47 · 56.2%
129.560103.58077.600 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18,19 20 21 22 23 24 25 26 27 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
127.3200 128.8200 126.6208 127.4700 7,786,380
124.8000 126.7700 124.1000 126.2600 7,344,800
127.2900 127.8900 124.2200 124.4000 7,729,000
Weekend
Weekend
128.4500 131.7400 127.0300 127.5000 13,472,700
124.3300 128.9300 124.0000 127.6300 13,038,800
124.2500 124.9000 122.7500 123.6100 9,053,800
123.3000 123.6600 120.1600 120.7800 9,932,900
123.5800 124.7400 122.4400 124.0300 5,225,800
Weekend
Weekend
125.1200 125.5600 122.9000 123.5400 8,388,400
125.4800 128.0700 124.4500 125.0700 6,975,500
128.3400 128.9900 125.1400 125.9900 7,910,200
128.7700 129.6900 127.8900 128.8600 10,174,300
129.3100 130.0000 125.6200 126.7800 9,499,300
Weekend
Weekend
No trading
126.1800 129.6100 125.9900 129.5600 7,832,200
128.0100 128.4200 124.7100 125.3700 10,761,500
129.2200 130.2900 126.6800 128.5000 11,837,200
127.6500 129.9700 126.7400 129.3800 9,584,600
Weekend
Weekend
125.8300 128.7800 125.8300 128.6600 18,891,500
121.6300 125.9600 121.0000 125.4500 14,043,800
120.9000 121.8100 119.5100 120.6000 10,478,100
116.5300 119.8000 116.5300 119.6000 10,469,300
113.9700 115.6300 113.0000 115.4800 10,521,200
Weekend
Weekend
No trading
114.6400 114.9400 111.5700 113.8700 29,521,600
114.8600 115.9900 114.0200 115.4400 10,459,900
115.8800 115.9000 113.5700 115.1700 10,665,400
118.7100 118.9500 114.8700 114.9000 15,395,700
Weekend
Weekend
121.5000 121.9000 118.8300 119.0500 10,926,900
120.0400 122.7100 119.9500 120.7600 13,180,300
119.7800 120.0400 117.2600 119.0900 10,302,100
120.0300 120.5000 118.0000 119.6000 9,669,100
120.8500 122.6000 118.6900 119.5200 12,312,200
Weekend
Weekend
120.9400 123.4600 120.3600 120.7900 15,967,200
117.1600 120.5500 117.0900 120.2600 15,933,900
115.4500 117.3300 114.7000 114.7000 8,225,100
114.5000 116.7800 114.5000 115.6500 8,311,500
117.5500 117.9600 114.3600 115.1700 9,406,700
Weekend
Weekend
119.6500 120.6700 118.1900 118.7200 16,596,000
27 · 8-K After-hours · 16:15 ET FORM 8-K ↗
120.2600 121.5000 119.3600 119.8900 9,258,900
119.8200 122.4000 119.7800 120.2400 7,162,300
122.9000 123.1300 119.4100 119.7200 10,008,700
No trading
Weekend
Weekend
26 · 8-K After-hours · 16:21 ET 8-K ↗
120.5500 122.6600 120.0800 122.4100 14,749,200
112.7900 115.9800 112.0900 115.8800 7,402,700
25 · 424B5 After-hours · 16:23 ET 424B5 ↗
114.6300 114.9500 112.9000 113.0000 9,130,600
112.5600 115.1000 112.1300 114.2400 7,555,400
111.4300 112.8900 110.9700 112.5600 8,047,200
24 · 424B5 Pre-market · 08:14 ET 424B5 ↗
Weekend
Weekend
113.9000 113.9300 110.9400 111.3800 10,028,900
113.6300 113.9000 112.5700 113.4100 5,284,200
112.2500 114.0700 112.0400 113.4500 8,110,500
111.5000 113.6900 111.3900 112.3700 9,117,400
112.1500 113.6800 111.0100 111.2800 7,750,600
Weekend
Weekend
112.3800 113.0100 111.1800 111.3800 5,725,100
113.5100 113.7500 111.1000 112.3000 7,329,000
113.1500 114.4900 112.7400 113.5600 7,256,100
113.6700 114.0700 112.8300 113.1500 7,910,400
23 · SC TO-T/A Pre-market · 08:52 ET SC TO-T/A ↗ 22 · 10-Q After-hours · 16:10 ET 1Q26 FORM 10-Q ↗
111.4100 114.6200 110.7500 113.1100 7,659,100
Weekend
Weekend
112.3300 114.5400 111.8800 112.1600 11,953,700
109.3400 112.2400 108.6300 109.1800 17,131,200
21 · 8-K Pre-market · 06:53 ET FORM 8-K ↗
108.5500 111.2300 107.9000 110.9500 9,769,900
111.5200 111.9100 109.7100 110.0300 7,157,600
111.2200 112.7500 110.1400 110.2300 9,133,600
Weekend
Weekend
113.7400 114.0300 111.5000 111.9000 7,060,000
20 · SC TO-T/A Pre-market · 07:30 ET SC TO-T/A ↗
113.3700 115.0200 113.1000 114.6200 6,826,300
112.6100 113.5100 111.5400 112.8900 8,037,500
116.4900 116.5300 111.9100 112.5600 12,769,500
119.1500 119.3600 116.7500 117.1000 7,392,000
Weekend
Weekend
115.5600 119.2000 115.5600 119.0700 16,194,900
117.1300 117.8500 114.7100 115.4600 11,399,900
119.8000 120.2500 116.6400 117.9000 7,689,400
119.0300 120.3600 118.1500 119.9600 12,449,400
121.0300 121.3000 119.0600 120.1500 6,357,300
Weekend
Weekend
122.9600 123.0100 120.9500 121.4200 9,707,000
122.9000 124.0000 121.3500 122.6800 8,666,300
19 · DEFA14A After-hours · 16:28 ET DEFA14A ↗ 18 · DEF 14A After-hours · 16:25 ET DEF 14A ↗
119.6000 123.6300 117.9400 123.1800 9,256,900
119.5600 119.5600 116.5000 119.2800 11,376,400
17 · SC TO-T Pre-market · 07:00 ET SC TO-T ↗
120.4100 121.4800 120.0400 120.8500 4,890,200
Weekend
Weekend
No trading
120.3700 121.6500 119.2200 120.8700 6,387,900
120.8800 122.1900 120.2700 120.8400 6,351,700
119.0300 121.2700 118.7700 120.2900 10,713,300
120.5700 121.6400 117.2200 118.1000 11,084,000
Weekend
Weekend
119.2900 121.0700 118.6000 119.6300 8,345,800
118.9600 120.0600 118.6500 118.9300 6,497,200
117.3000 120.1200 116.8000 119.3700 10,220,300
114.7000 116.5400 114.0200 116.3700 7,411,900
116.1700 116.4700 114.7700 115.6800 9,096,400
Weekend
Weekend
114.2500 115.1800 112.7200 114.1800 36,355,400
114.6600 115.7600 113.7500 114.2000 8,383,800
115.0600 115.5600 113.3500 114.5000 6,736,300
115.7800 116.8000 114.3800 115.8700 7,952,200
115.3400 116.0600 114.2200 115.4300 8,785,300
Weekend
Weekend
116.9200 117.8900 115.5300 115.6100 7,111,000
115.4700 116.6000 114.3000 115.9100 8,349,200
116.7600 116.9500 115.2900 116.2100 6,760,700
117.2400 119.0000 116.6700 117.0900 9,739,300
114.9800 117.2600 114.1100 117.1100 8,321,600
Weekend
Weekend
115.1600 116.3600 113.8200 115.7900 12,809,300
119.1100 119.5300 114.4500 116.0700 14,516,000
119.4300 120.8700 117.8600 120.2800 6,700,900
119.6700 120.9700 118.6100 119.8300 9,334,100
123.5100 123.7000 121.0400 121.4100 11,564,500
Weekend
Weekend
119.6800 124.0000 119.6800 123.8200 17,636,400
122.4000 122.5000 119.0000 119.3000 10,327,300
124.0100 125.1400 122.2600 122.4600 11,082,500
16 · 10-K After-hours · 16:15 ET 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 ↗
123.4100 124.8400 122.6300 123.9300 8,460,300
122.3100 124.1900 121.5000 123.8200 9,661,100
Weekend
Weekend
122.6400 122.7000 120.6000 122.2600 9,442,500
121.4000 122.6000 120.5000 121.8600 8,933,300
121.2500 121.8100 120.3900 121.6600 7,803,400
122.3600 123.0800 120.8000 121.5700 9,899,800
No trading
Weekend
Weekend
121.5000 123.3300 121.0300 121.4100 10,102,300
119.0100 121.6100 118.1200 119.2400 13,453,300
117.0400 119.3600 116.3100 119.3100 10,885,300
117.6900 118.1800 116.1000 117.1500 11,849,500
121.4100 121.8800 116.9800 117.6500 16,158,700
Weekend
Weekend
120.7600 122.6600 120.4400 121.9300 13,083,300
118.3100 122.4300 118.3100 119.7500 24,010,600
116.9000 120.3900 116.5000 118.3300 21,954,600
111.6700 118.4600 111.4400 115.8400 25,793,600
15 · 8-K Pre-market · 06:38 ET FORM 8-K ↗
110.1200 113.8900 109.9500 113.3700 18,000,100
Weekend
Weekend
108.5900 110.5400 107.9500 110.2700 19,060,600
107.3300 109.9300 107.1000 108.3400 13,572,800
106.8500 107.9300 106.0300 106.9000 7,491,700
107.5000 108.3500 106.8400 107.9200 7,907,100
107.8000 108.4200 107.0600 107.4000 9,903,200
Weekend
Weekend
109.0900 109.0900 107.2100 108.1800 10,489,500
110.7800 111.3200 108.5900 109.1800 9,362,600
109.1900 111.9700 108.7300 111.1100 12,844,400
108.1100 109.6400 106.9300 109.4500 15,241,100
No trading
Weekend
Weekend
110.7200 110.7300 108.4300 108.8300 14,852,100
110.6200 111.5800 108.4500 110.9700 11,775,800
108.9700 111.2300 107.9500 111.0100 11,964,600
109.0500 109.3100 107.2200 108.2600 9,338,600
110.9700 111.4600 108.7800 109.1900 10,671,900
Weekend
Weekend
110.8700 112.4800 110.2200 110.5300 11,040,800
110.6100 112.9000 109.2500 110.9900 20,278,800
109.5100 111.4600 107.9500 108.6000 16,322,300
14 · SC TO-T/A Pre-market · 08:55 ET SC TO-T/A ↗
107.6800 110.1700 107.6800 108.8700 14,479,000
107.0100 108.4400 105.8000 107.4400 15,863,300
Weekend
Weekend
105.5300 106.6200 104.4300 106.4500 9,992,400
No trading
105.9400 106.1000 104.9900 105.2600 7,557,300
106.7300 106.8800 105.6400 106.0600 6,497,900
106.8500 107.5900 106.4300 106.6200 8,086,900
Weekend
Weekend
106.4500 107.0500 106.0300 106.7800 6,280,700
No trading
105.3700 106.9500 105.2800 106.4500 5,335,000
104.5600 105.3900 104.3300 105.0400 13,587,500
100.6300 104.9500 100.4000 104.7200 17,136,200
Weekend
Weekend
13 · SC TO-T/A After-hours · 16:06 ET SC TO-T/A ↗
100.6000 102.2000 100.1100 101.0900 44,980,200
99.2700 101.3700 98.8600 100.6900 14,312,800
12 · SC TO-T/A After-hours · 17:15 ET SC TO-T/A ↗
98.1800 100.1400 98.0600 99.1800 13,180,600
100.3000 100.3400 96.7900 98.2700 16,663,600
99.9900 100.9400 98.0000 100.2600 16,735,900
Weekend
Weekend
98.9600 100.6600 98.3200 100.3000 11,810,800
98.4400 99.1400 97.5800 99.0100 11,808,200
98.0500 98.1700 96.4700 97.6200 18,077,700
99.3200 99.8500 96.0600 96.8900 16,283,900
99.3800 99.6700 97.8100 98.9300 12,902,600
Weekend
Weekend
11 · SC TO-T After-hours · 17:08 ET SC TO-T ↗
101.4000 102.0900 99.1900 99.7200 16,430,400
10 · 8-K After-hours · 16:36 ET 8-K ↗
102.1000 102.6000 100.5400 100.8900 12,770,700
9 · 424B5 After-hours · 16:22 ET 424B5 ↗
101.9000 103.0900 101.5200 102.2700 12,541,600
101.5300 101.8000 100.3100 101.0300 11,795,000
104.7200 105.6800 101.7100 101.8300 14,178,300
8 · 424B5 Pre-market · 08:13 ET 424B5 ↗
Weekend
Weekend
104.8400 105.4100 104.1200 104.8300 6,154,500
No trading
104.6000 105.7500 104.2000 104.6300 12,624,000
100.7300 105.8400 100.7100 105.6600 22,225,500
99.1200 102.3600 99.1200 100.4000 28,320,900
Weekend
Weekend
95.4800 100.2700 95.3600 97.7600 23,183,300
94.9700 96.0000 93.9000 94.9700 12,554,200
96.0000 97.1400 94.0900 95.0500 14,641,300
94.1100 97.6600 92.1100 96.4300 28,153,500
93.2300 94.7500 92.6800 92.8600 14,345,800
Weekend
Weekend
92.2000 95.0800 91.4900 92.9200 19,632,000
91.3100 94.2600 90.9000 92.9300 16,086,100
91.4100 92.9100 91.1600 91.4500 13,218,900
87.3500 91.0700 87.2600 90.9500 15,436,000
86.6900 87.3700 85.8000 86.7500 8,319,600
Weekend
Weekend
85.9500 86.5900 85.2400 86.2800 9,214,300
84.4800 86.1700 84.3500 85.7800 10,601,400
7 · 10-Q After-hours · 16:08 ET 3Q25 FORM 10-Q ↗
84.0300 85.3800 82.9100 84.3900 9,440,200
82.7000 84.9600 82.0100 83.8600 12,846,100
85.7700 86.1000 82.3400 82.4900 13,875,800
Weekend
Weekend
85.4200 86.4600 84.5600 85.9800 12,385,000
84.6200 87.3000 83.3000 86.2800 16,678,800
6 · 8-K Pre-market · 06:40 ET FORM 8-K ↗
86.9500 87.8400 86.0700 86.5800 10,921,900
88.1100 88.1100 86.9300 87.0300 8,345,900
87.5100 88.3000 87.0300 88.0000 7,226,600
Weekend
Weekend
87.3300 88.0600 87.1100 87.4900 7,902,100
87.5600 88.1100 86.9100 87.1800 7,687,500
87.6800 88.7900 87.0100 87.6100 10,926,300
86.9600 87.6700 86.2300 87.6200 9,852,400
85.2500 87.0000 85.0300 86.3200 8,611,800
Weekend
Weekend
83.2800 84.8900 83.1600 84.7900 10,758,900
84.4100 85.5000 83.6000 83.9200 11,709,100
84.1900 84.6900 83.6100 84.1100 9,168,700
85.3800 85.6800 84.1500 84.7000 9,675,000
85.6600 86.4600 85.2400 85.7000 6,553,900
Weekend
Weekend
87.9400 88.2400 85.9200 85.9900 11,230,700
86.9600 87.8000 86.6400 87.5000 10,938,200
87.9300 87.9300 86.2000 86.4000 9,696,200
88.6700 88.9400 87.1400 87.6100 9,449,100
88.8300 90.3100 88.5500 88.8000 11,648,300
Weekend
Weekend
89.6300 90.7000 88.1000 89.1900 12,970,600
89.9500 91.0000 88.2200 89.5100 14,575,400
85.1900 90.7500 85.1900 90.1300 33,460,900
78.4200 84.0000 78.4000 83.9300 21,636,600
78.6000 78.8000 78.0300 78.5800 12,739,000
Weekend
Weekend
78.7600 78.9600 77.6900 78.5600 12,205,400
79.7800 79.8800 77.5800 77.6000 14,923,800
79.9000 80.1100 79.3300 79.6700 11,804,200
80.0900 81.1100 79.6700 79.9600 13,145,300
81.7600 81.9400 80.2600 80.4000 11,986,400
Weekend
Weekend
81.8100 82.4000 81.0000 81.5100 25,627,800
81.2200 81.6900 80.8200 81.5300 10,458,900
80.9800 82.2500 80.8000 81.1400 12,642,100
81.0100 81.4800 80.5400 81.0900 10,065,900
82.1100 82.7500 80.9200 81.0200 10,229,800
Weekend
Weekend
84.6200 85.1800 82.8000 82.8100 9,939,500
84.3400 85.5500 84.0000 85.1500 9,667,200
84.2700 84.5700 83.5400 84.0300 13,073,300
5 · 8-K After-hours · 16:33 ET 8-K ↗
84.1800 84.8000 84.1300 84.6100 9,767,500
84.1600 84.3200 82.8200 84.0900 13,111,200
Weekend
Weekend
83.7900 85.2700 83.2500 84.7100 13,231,100
4 · 424B5 After-hours · 16:15 ET 424B5 ↗
84.2000 84.4100 83.0000 84.0500 12,554,800
85.3700 85.8100 84.0700 84.1800 12,714,400
84.5000 85.5000 84.3400 85.4800 11,642,700
3 · 424B5 Pre-market · 08:15 ET 424B5 ↗
No trading
Weekend
Weekend
83.4200 84.2400 83.2800 84.1200 10,872,900
84.2500 84.2500 82.6500 83.2100 14,485,300
85.0700 85.4800 83.8800 84.0700 10,588,100
85.5600 85.5900 84.6700 84.9900 14,062,700
87.2100 87.3900 84.9500 85.3100 9,417,700
Weekend
Weekend
87.5000 87.8400 86.7600 87.3700 11,977,400
84.8800 87.3200 84.6000 86.0800 13,889,000
85.3100 86.2500 84.5500 84.6600 8,904,700
84.3800 85.8000 84.3800 84.9300 14,307,700
84.2600 85.1500 84.0800 84.2200 8,273,600
Weekend
Weekend
83.7200 84.7400 83.3600 84.2100 10,481,400
82.0100 83.4000 81.6000 82.7600 10,217,600
80.7500 82.8400 80.2000 82.7100 11,043,800
80.4700 80.9400 79.6700 80.3000 7,852,700
80.9600 81.6400 79.6300 80.0300 8,210,700
Weekend
Weekend
80.1100 81.1700 80.1100 80.6900 6,882,900
79.6500 80.8200 78.6500 80.3700 10,830,100
80.2900 81.3200 79.2700 79.4400 13,028,700
2 · 10-Q After-hours · 16:13 ET 2Q25 FORM 10-Q (6.30.25) ↗
79.9000 81.1300 79.5700 80.7900 9,984,300
79.0600 79.9900 78.4300 79.8600 13,380,700
Weekend
Weekend
78.0200 79.8700 77.5300 79.2900 11,900,300
80.8000 81.4900 77.8500 78.1200 19,813,300
82.9100 83.5800 81.5200 81.7500 13,055,200
79.8500 82.8900 76.6600 82.6300 27,826,400
1 · 8-K Pre-market · 06:42 ET FORM 8-K ↗
84.4700 84.9700 83.8700 84.0600 12,882,000
Weekend
Weekend
84.1600 85.2200 83.8400 84.7100 10,058,800
84.2000 84.5100 83.5200 84.1100 8,016,700
82.6200 84.1400 82.4100 83.9800 11,542,100
79.8700 81.7700 79.8700 81.6100 10,571,000

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.

27 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
26 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:21 ET Summarise
25 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
24 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 08:14 ET Summarise
23 SC TO-T/A SC TO-T/A (opens SEC filing in a new tab) Pre-market · 08:52 ET Summarise
22 10-Q 1Q26 FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
21 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:53 ET Summarise
20 SC TO-T/A SC TO-T/A (opens SEC filing in a new tab) Pre-market · 07:30 ET Summarise
19 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
18 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
17 SC TO-T SC TO-T (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
16 10-K 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
15 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:38 ET Summarise
14 SC TO-T/A SC TO-T/A (opens SEC filing in a new tab) Pre-market · 08:55 ET Summarise
13 SC TO-T/A SC TO-T/A (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
12 SC TO-T/A SC TO-T/A (opens SEC filing in a new tab) After-hours · 17:15 ET Summarise
11 SC TO-T SC TO-T (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:36 ET Summarise
9 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
8 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 08:13 ET Summarise
7 10-Q 3Q25 FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:40 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
4 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
3 424B5 424B5 (opens SEC filing in a new tab) Pre-market · 08:15 ET Summarise
2 10-Q 2Q25 FORM 10-Q (6.30.25) (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:42 ET Summarise