Oklo Inc. Class A OKLO

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Oklo Inc. Class A 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 61.32 → 44.50 · -27.4%
174.140107.62541.110 1 2,3 4 5 6 7,8 9 10 11 12 13,14 15 16 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
45.2000 47.5100 44.0814 44.5000 10,479,091
42.4000 44.1900 42.2650 44.1300 9,729,700
41.2500 42.8100 40.7500 41.5100 6,688,200
Weekend
Weekend
40.4800 42.5900 39.5300 41.1100 9,201,000
44.3000 44.3600 40.9800 41.7000 11,488,100
46.7900 47.5200 44.1600 45.6900 6,895,000
46.9600 47.4170 45.4400 46.2400 6,568,300
47.7200 48.1200 45.0710 45.8100 10,094,500
Weekend
Weekend
49.4350 50.6500 47.6300 48.8500 6,619,400
47.8500 50.2300 47.2900 49.2700 7,277,200
47.5350 48.6100 45.8300 47.2800 7,136,700
50.8500 51.3840 46.9500 47.9000 11,251,500
51.4000 53.0800 50.2500 51.8400 8,369,700
Weekend
Weekend
No trading
52.8000 56.3400 50.6900 52.3600 9,657,200
53.6300 54.3150 51.5100 52.4500 9,716,900
53.0850 53.2300 50.7600 52.3300 7,265,500
51.4000 53.5800 50.5100 52.7600 9,071,100
Weekend
Weekend
50.0000 51.3500 49.5640 50.0000 22,896,000
55.5600 55.8000 50.4300 51.0100 9,721,800
56.6900 56.6900 52.8700 54.0600 9,429,000
55.8800 61.3000 55.3900 57.1900 9,311,800
59.1700 59.8800 57.2500 58.4000 8,305,100
Weekend
Weekend
No trading
59.8300 63.0000 58.5600 61.1700 14,444,000
57.0200 61.6900 56.8330 58.8200 10,794,600
16 · 10-Q/A Next filing day · accepted 16 Jun, 20:37 ET 10-Q/A ↗
59.9400 61.9500 57.3250 57.4500 8,810,900
60.4800 61.9800 59.8100 60.7400 9,642,900
Weekend
Weekend
58.0500 58.5800 55.8800 57.4900 8,173,100
54.1500 58.2400 53.4200 57.8600 10,687,800
55.4300 57.8800 53.8300 54.0200 8,300,400
59.0100 59.8800 53.0100 56.4800 12,403,300
15 · 8-K After-hours · 16:38 ET 8-K ↗
60.1000 60.3510 58.0000 58.9400 8,918,000
Weekend
Weekend
64.8000 64.8100 56.6250 58.0900 18,896,500
64.5100 66.5700 63.3300 65.3900 11,973,900
70.7200 70.8500 64.0500 65.2100 22,785,200
67.1000 73.8600 65.6600 73.4700 24,065,100
65.9000 70.6000 64.5700 66.8900 18,846,300
Weekend
Weekend
68.0900 70.0100 64.2840 66.8800 27,669,400
66.4800 70.9780 65.6200 68.0900 12,231,100
69.3400 69.5200 65.3700 67.8200 10,469,900
71.8700 73.2900 68.0800 68.7000 18,505,700
No trading
Weekend
Weekend
66.8200 69.7170 65.1300 65.8800 11,410,700
61.9200 65.2900 61.1000 65.0900 10,385,900
57.5600 62.9000 56.6400 62.5800 13,890,200
56.7300 57.7700 53.9550 55.8800 11,768,800
62.4500 63.0000 56.8000 58.5600 14,527,900
Weekend
Weekend
64.8000 65.0000 61.7300 62.2500 11,851,900
67.3900 67.7000 64.6600 67.2100 14,828,100
14 · 424B5 After-hours · 17:23 ET 424B5 ↗ 13 · 8-K After-hours · 17:22 ET FORM 8-K ↗
73.3700 73.4000 68.1000 69.6600 14,287,300
12 · 10-Q After-hours · 16:07 ET 10-Q ↗
75.7300 76.6800 70.3000 73.6300 15,654,900
71.4100 79.6500 69.2200 78.1300 17,333,300
Weekend
Weekend
73.7000 74.0000 70.0000 72.5100 10,013,600
78.0000 79.5000 70.8700 71.8300 14,637,200
71.2100 80.0800 69.2500 79.6200 23,036,800
69.0100 69.2400 66.0800 68.3800 8,280,400
70.4540 72.3000 68.5000 68.6000 8,854,500
Weekend
Weekend
71.6800 71.6800 68.4700 70.4000 10,510,600
65.5400 72.8400 65.2610 72.5000 14,651,900
70.5400 70.6000 63.2000 64.9800 16,156,500
71.5100 72.8700 68.7900 69.0900 14,842,400
71.0000 76.2000 70.3000 75.9300 18,897,100
Weekend
Weekend
81.2900 81.5000 70.8800 71.0000 23,265,300
77.7300 80.6400 73.6600 76.4600 31,945,500
65.1900 72.6300 64.7500 72.4100 18,164,400
11 · DEF 14A After-hours · 16:05 ET DEF 14A ↗
68.4100 69.0000 62.2200 62.6100 15,258,400
65.5300 68.3000 63.7500 68.1300 12,883,000
Weekend
Weekend
66.0600 74.2100 64.9500 66.8100 24,357,200
67.6100 68.7600 60.8100 64.2100 18,341,000
62.5300 66.6200 61.1100 63.3500 21,905,500
10 · 8-K After-hours · 16:20 ET 8-K ↗
59.0900 61.6100 56.2200 58.5800 18,440,900
49.0000 53.9600 48.1000 53.9400 8,487,300
Weekend
Weekend
48.8600 52.1500 48.5500 50.2500 7,166,900
49.5300 50.3600 47.3950 47.7500 5,966,100
50.5200 51.3800 48.0000 50.2100 8,582,400
47.4000 47.9400 44.9100 46.5900 6,855,100
48.1000 49.8500 47.9800 48.7600 4,911,200
Weekend
Weekend
No trading
45.9500 49.0500 45.3600 48.1300 5,533,400
51.0800 51.8450 47.9200 48.0700 8,033,100
46.0200 50.0000 45.6000 49.5900 9,401,200
50.9400 51.9700 44.8800 45.5800 10,856,100
Weekend
Weekend
51.5200 52.6350 50.1500 50.2300 6,419,400
53.6100 54.8750 51.1000 51.8100 7,246,300
56.4600 57.6500 54.4300 55.2700 6,012,000
55.4600 56.0800 53.3300 54.9600 7,395,800
54.6000 57.2100 54.0200 56.2600 9,233,200
Weekend
Weekend
54.5700 57.3200 52.7500 53.9700 12,577,700
55.6400 56.6860 53.5000 54.6900 9,444,900
60.1900 61.7500 56.6800 56.7000 11,984,800
9 · 10-K After-hours · 16:05 ET 10-K ↗
64.9600 65.9700 59.2400 60.5300 19,128,900
59.8400 60.3600 57.8270 59.6900 6,306,400
Weekend
Weekend
61.0600 61.7300 57.9500 58.3700 5,841,000
61.7400 63.2000 59.5100 59.5900 7,154,200
61.8000 64.1000 61.1060 62.7600 6,280,500
61.9100 63.4500 61.2600 61.3800 6,064,600
57.1100 62.0600 56.4700 61.7800 8,297,500
Weekend
Weekend
60.3100 62.8000 58.1850 58.2500 8,836,900
64.4000 64.6210 59.0700 62.0300 9,806,800
63.8000 66.1800 63.3000 65.6500 6,169,000
61.9300 64.5150 60.0400 63.3000 5,983,500
60.1200 64.8990 60.0000 64.6800 7,190,600
Weekend
Weekend
65.7200 66.0800 62.0700 62.9500 8,187,100
65.8400 69.9500 64.6000 69.0700 8,025,900
66.4100 67.6700 64.7600 66.3200 6,044,300
61.7050 65.3000 60.1200 65.0600 6,698,000
61.6000 63.3400 60.8900 63.0900 6,173,600
Weekend
Weekend
66.6600 67.7700 62.6800 63.8300 7,083,100
66.2250 68.3600 64.3400 67.6400 5,446,600
67.3800 70.1500 65.8000 67.3900 5,217,000
64.6000 69.5850 62.8400 67.6400 6,074,400
No trading
Weekend
Weekend
64.4200 68.1880 62.5600 65.6900 6,085,800
67.1700 67.7100 63.6200 63.9200 7,938,500
71.4400 71.5000 64.8900 66.2300 8,984,500
74.4800 76.3650 69.1300 69.4700 8,060,300
69.3100 75.5000 68.6400 75.0500 8,376,100
Weekend
Weekend
64.9800 72.1800 64.3100 71.1000 12,709,700
66.5000 67.3800 61.6750 62.1400 11,726,100
77.2000 77.2600 64.0000 68.2300 19,015,100
75.4800 79.1800 74.0300 78.0000 10,640,100
78.2500 78.3800 73.2900 73.6200 11,421,900
Weekend
Weekend
85.1500 88.6800 78.9100 79.6200 10,751,800
93.9500 93.9500 83.5000 86.0400 14,347,300
86.7300 95.1000 85.6000 94.3900 16,372,000
82.8100 86.8500 81.2100 85.2700 10,549,000
86.1800 86.8100 81.1300 82.3100 8,698,100
Weekend
Weekend
91.3900 91.3900 86.1700 87.6300 9,368,100
92.4600 93.6000 89.8800 90.9300 10,120,800
96.3900 100.2000 86.0200 90.7800 24,269,700
90.8350 97.0000 88.9300 89.9300 12,557,700
No trading
Weekend
Weekend
92.1000 96.7000 89.3040 94.9500 15,411,300
97.8000 99.2900 91.3800 91.4500 11,272,200
94.7700 97.0800 91.5000 95.9700 11,511,200
105.7500 107.6000 96.6000 97.0900 11,145,200
103.3300 105.9000 100.3700 102.5000 12,074,900
Weekend
Weekend
114.3500 115.7200 104.0300 105.3100 33,942,700
96.7100 100.1900 93.4200 97.6000 9,803,700
93.6000 100.6900 92.8100 97.6000 13,362,300
93.0000 96.9500 88.7300 95.6000 20,105,800
81.6500 90.8500 80.4000 89.3400 19,824,400
Weekend
Weekend
73.9900 77.9200 72.1300 77.8000 10,135,500
No trading
71.4200 72.3200 70.8600 71.7600 6,946,600
74.3100 74.6500 71.6000 71.6200 8,195,800
74.8000 78.4800 73.7600 74.0900 8,529,200
Weekend
Weekend
80.0250 80.3500 76.1600 76.9200 7,123,000
No trading
80.4900 81.3100 78.6400 81.3100 5,203,700
81.8050 84.9500 80.7900 81.8800 6,598,100
85.7800 85.8300 80.1400 83.4400 11,057,600
Weekend
Weekend
78.7000 85.2600 78.5300 83.2300 11,396,300
80.5050 81.0000 76.0700 77.7200 9,410,200
84.2900 85.5800 75.0000 75.9400 10,675,600
80.7500 84.2400 78.6700 83.5100 7,743,400
89.3500 89.6000 82.0000 82.3300 9,772,400
Weekend
Weekend
102.7050 103.1400 87.3390 87.4200 15,776,200
98.4900 103.4200 94.4100 103.0000 8,523,500
102.9000 104.5700 98.3170 100.6000 9,298,300
103.6100 107.5500 101.9200 103.9300 6,792,000
108.1400 109.1700 100.6000 104.6100 9,420,700
Weekend
Weekend
105.9850 107.5900 100.5100 104.6700 14,573,800
8 · 424B5 After-hours · 17:19 ET 424B5 ↗ 7 · 8-K After-hours · 16:58 ET FORM 8-K ↗
96.9800 114.2900 94.6050 111.6500 21,446,900
90.9900 97.0000 89.0100 96.5900 7,981,000
88.9800 96.5000 88.6000 91.8400 10,924,100
88.5400 90.6000 85.5000 87.3600 6,719,900
Weekend
Weekend
90.0000 94.5100 89.0100 91.3800 5,692,900
No trading
88.0500 89.8800 85.7700 88.7200 8,016,300
89.4650 89.4700 81.1100 85.7700 12,502,900
89.1600 93.2000 86.5700 89.5500 24,669,600
Weekend
Weekend
89.4500 89.9250 79.0100 88.1700 21,721,900
106.1100 109.7000 87.7500 88.0000 20,149,200
99.6500 105.8800 98.0500 102.8600 15,765,200
93.6900 100.5450 93.1500 96.6300 11,402,400
96.6100 101.5000 92.6300 95.3600 10,697,000
Weekend
Weekend
94.8350 106.8300 93.4900 97.5700 15,534,200
6 · S-3/A After-hours · 17:28 ET S-3/A ↗
109.4500 110.3800 100.3000 101.6400 12,663,800
108.6000 116.9800 106.9600 111.1700 19,309,500
5 · 10-Q Pre-market · 08:27 ET 10-Q ↗
108.1900 111.0000 103.6400 104.2200 11,727,600
116.9900 117.4400 107.5000 111.5200 12,942,700
Weekend
Weekend
100.0000 112.7000 97.0600 112.6500 16,397,500
120.1200 120.9500 105.9900 106.7500 15,789,600
116.3700 123.4400 114.3210 121.2300 12,483,300
119.2500 122.3670 111.7900 112.2300 12,095,000
132.1100 132.1100 121.6010 126.6700 10,537,400
Weekend
Weekend
140.5800 141.7000 130.1100 132.7700 11,430,700
137.1800 145.3000 133.7100 137.3900 12,172,000
4 · S-3 Next filing day · accepted 29 Oct, 20:30 ET S-3 ↗
134.5300 152.0600 131.9100 143.4200 18,754,500
138.1000 144.4000 131.2000 132.2800 14,479,600
144.8000 145.0000 129.6700 137.4300 16,454,000
Weekend
Weekend
133.5300 138.6600 130.9800 136.0500 18,105,000
119.9900 129.1800 116.4000 124.7000 18,207,700
132.8100 136.1820 114.0000 120.1200 34,401,200
153.1500 154.4500 136.7000 139.4400 22,688,900
167.1900 170.0000 154.1200 159.0500 16,751,800
Weekend
Weekend
157.8000 171.6500 155.6800 163.3900 20,652,800
174.8500 176.3500 157.2000 162.1400 23,266,900
185.9600 193.8400 164.0000 171.5600 33,932,400
168.0500 183.2000 160.1800 174.1400 26,214,800
158.0000 175.9000 156.5400 171.0100 28,693,800
Weekend
Weekend
137.6900 161.4100 136.8000 147.1600 39,386,600
139.8500 141.5550 131.1900 138.1300 17,273,200
135.8500 138.3500 130.5800 134.7700 15,870,900
142.2000 142.2000 130.4000 134.1200 18,415,900
131.3950 147.1800 131.2000 138.5600 25,636,400
Weekend
Weekend
127.9100 130.9400 122.7700 127.3600 17,441,400
118.8500 129.6400 116.1600 128.8000 28,326,000
112.6000 116.6750 109.2000 115.9300 18,369,900
115.4600 116.8700 109.6250 111.6300 25,175,400
118.2500 121.5300 114.1100 116.5100 25,099,900
Weekend
Weekend
117.6300 119.9600 108.5400 110.5300 24,837,100
110.9600 122.4800 110.1400 119.1300 45,707,600
142.9400 144.4900 130.3800 131.1700 25,248,500
137.3150 143.7500 132.3500 142.6500 30,248,600
130.8450 142.8500 123.7200 140.3000 37,181,200
Weekend
Weekend
108.7000 136.5300 107.1590 135.2300 63,584,000
98.5350 110.8240 96.2300 104.9700 27,987,200
95.2800 96.7720 90.1100 95.2900 13,875,900
94.8050 95.9000 90.3900 95.8300 20,223,100
84.2500 95.9100 83.3000 95.6800 28,016,900
Weekend
Weekend
78.9000 83.0000 78.6700 82.7100 12,597,000
74.1800 80.8800 73.1300 79.9700 19,906,200
75.4400 76.7000 73.3000 73.7500 10,834,300
70.4400 74.4800 69.5500 73.9700 12,162,800
70.5000 71.9290 69.6100 70.7200 7,781,800
Weekend
Weekend
71.2200 71.8800 66.2000 69.7900 12,104,500
72.0000 73.3280 68.9200 69.6100 9,266,100
3 · 8-K After-hours · 16:15 ET FORM 8-K ↗ 2 · 424B5 After-hours · 16:10 ET 424B5 ↗
74.6400 76.6000 71.6520 72.2300 10,238,400
70.1550 73.5900 68.7700 73.5900 11,651,600
No trading
Weekend
Weekend
77.6700 78.5000 72.7800 73.6400 13,628,900
74.3400 79.7900 74.0800 77.8900 17,316,200
74.5450 76.0600 72.8600 73.2000 12,243,800
73.8500 78.7000 72.7100 74.3100 24,362,600
71.3450 71.9470 67.8460 71.1900 8,683,600
Weekend
Weekend
67.2350 72.4300 64.7310 70.3800 14,143,700
67.6500 69.4400 66.1100 67.1900 12,454,900
64.3500 67.1900 61.0100 66.5700 13,132,100
69.4100 70.0400 65.0240 65.4100 11,117,600
70.5000 71.4000 68.0200 68.9900 7,574,300
Weekend
Weekend
74.2600 74.5330 68.7720 71.0600 10,587,400
77.1900 78.5400 71.8500 73.6600 12,116,100
81.0500 83.6000 75.6020 77.4200 18,898,300
70.1000 79.0100 69.6520 78.4700 26,165,600
1 · 10-Q After-hours · 16:16 ET 10-Q ↗
74.2900 75.2600 71.3100 71.8600 16,515,500
Weekend
Weekend
79.7300 80.8000 74.2900 75.3200 13,742,600
83.6850 83.9500 76.6000 79.3200 14,533,200
83.2250 85.3500 81.2000 83.1000 13,409,100
77.0000 85.2000 76.7000 84.0900 23,516,800
73.4600 78.3500 71.6000 76.4100 16,256,900
Weekend
Weekend
72.8900 74.5000 67.8000 71.4900 19,769,700
76.8600 80.4200 75.5000 76.5900 23,970,900
71.4700 78.3400 71.4300 75.6300 22,211,100
75.1000 78.1280 70.6100 71.0100 15,896,400
77.5000 77.5450 72.2800 75.5000 17,264,400
Weekend
Weekend
71.7100 75.9000 71.2200 75.5000 18,541,300
66.6100 77.1700 65.8100 74.5900 40,388,000
63.5500 70.0600 63.5300 66.9700 33,806,900
63.0000 63.9800 58.8800 61.3200 15,071,000

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.

16 10-Q/A 10-Q/A (opens SEC filing in a new tab) Next filing day · accepted 16 Jun, 20:37 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:38 ET Summarise
14 424B5 424B5 (opens SEC filing in a new tab) After-hours · 17:23 ET Summarise
13 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 17:22 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
11 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
9 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
8 424B5 424B5 (opens SEC filing in a new tab) After-hours · 17:19 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:58 ET Summarise
6 S-3/A S-3/A (opens SEC filing in a new tab) After-hours · 17:28 ET Summarise
5 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 08:27 ET Summarise
4 S-3 S-3 (opens SEC filing in a new tab) Next filing day · accepted 29 Oct, 20:30 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
2 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
1 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise