NPK International Inc NPKI

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NPK International 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 8.61 → 14.82 · 72.1%
16.35012.4808.610 1 2,3 4 5 6,7 8 9 10 11 12 13,14 15 16,17 18 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
14.5100 14.9500 14.5400 14.8200 475,923
14.6500 14.8200 14.5000 14.5800 627,100
14.4300 14.5100 14.2600 14.4400 410,100
Weekend
Weekend
14.0400 14.5300 14.0000 14.3400 578,200
14.4400 14.6800 14.1500 14.2800 764,700
14.6200 14.7200 14.1700 14.5000 514,400
14.5100 14.8500 14.4900 14.5100 839,800
14.4100 14.4800 14.2000 14.3300 620,500
Weekend
Weekend
14.3600 14.5000 14.2400 14.3500 530,900
14.5600 14.7000 14.3100 14.4300 916,500
13.6000 14.2800 13.6000 14.2500 1,219,200
13.9200 14.2100 13.4300 13.7200 1,181,900
14.4000 14.6200 14.0000 14.1400 881,100
Weekend
Weekend
No trading
14.4200 14.5700 14.0300 14.3100 1,391,600
15.8400 15.8600 14.2600 14.3000 1,179,200
15.9500 16.1800 15.7400 15.9100 1,019,300
15.6100 16.0300 15.2900 15.8700 1,273,400
Weekend
Weekend
15.4600 15.6800 15.2600 15.6100 4,090,800
15.0200 15.5500 14.8200 15.5200 1,377,200
15.2900 15.4900 14.3800 14.7600 1,689,100
14.9700 15.5700 14.8900 15.4300 1,367,100
15.9000 16.1900 15.1400 15.3200 1,286,700
Weekend
Weekend
No trading
15.2700 15.9300 15.0800 15.9000 1,578,700
14.8900 15.6500 14.6100 15.1100 1,669,200
14.8700 15.1600 14.7700 14.7900 818,800
15.1800 15.1800 14.6300 14.7700 1,123,600
Weekend
Weekend
14.8300 15.2500 14.7200 14.9800 758,800
14.8200 14.9900 14.5000 14.6500 682,200
14.8100 15.0100 14.4800 14.6000 661,500
15.1500 15.5200 14.4400 14.8000 1,268,200
14.4900 15.0400 14.3600 14.8800 1,020,200
Weekend
Weekend
14.5200 14.6200 14.0900 14.2800 566,000
14.3300 14.7000 14.2800 14.6200 1,206,800
14.4600 14.6000 14.2800 14.4600 858,000
14.3400 14.7400 14.3000 14.5900 1,617,700
14.4300 14.5500 14.1500 14.3100 676,500
Weekend
Weekend
15.0500 15.2800 14.4700 14.5200 932,300
15.1500 15.2300 14.8700 15.0700 671,800
15.9800 15.9800 15.0900 15.2000 809,500
15.6700 16.1200 15.6500 15.9500 773,000
No trading
Weekend
Weekend
15.3300 15.5200 15.0800 15.5200 753,900
15.3300 15.5300 15.1500 15.2700 793,500
18 · 8-K After-hours · 16:23 ET 8-K ↗
15.4000 15.6000 15.2300 15.5200 1,029,200
14.9200 15.4500 14.5500 15.2900 931,100
15.3300 15.3800 14.9800 15.1100 578,300
Weekend
Weekend
15.4000 15.5900 15.1700 15.2900 551,400
15.7100 15.8700 15.3700 15.7100 659,400
15.1400 15.7200 15.0300 15.6000 661,300
15.2200 15.2300 14.7300 15.1000 794,500
14.9900 15.4500 14.9100 15.2900 597,800
Weekend
Weekend
15.6300 15.6300 14.8200 14.9500 630,200
15.7500 16.1400 15.3700 15.4300 1,080,700
15.4000 15.9200 15.3000 15.7100 669,800
15.1500 15.8000 15.1300 15.7800 737,700
15.6900 16.2000 14.6300 14.9300 1,257,900
Weekend
Weekend
17 · 8-K After market open · 12:09 ET 8-K ↗ 16 · 10-Q After market open · 11:50 ET 10-Q ↗
15.9000 16.5000 14.0500 15.5700 1,984,800
15 · 8-K After-hours · 16:28 ET 8-K ↗
15.7000 16.4900 15.6200 16.3500 1,267,200
15.7800 15.9800 15.5700 15.6500 678,600
16.0800 16.1900 15.7200 15.7600 939,200
15.7400 16.2100 15.6000 16.0700 1,373,300
Weekend
Weekend
14.6700 15.1300 14.6000 15.1000 656,300
14.6000 15.0400 14.5600 14.7100 508,500
14.4700 14.6600 14.3600 14.5100 693,200
14.3400 14.8100 14.2100 14.3000 530,100
14.6300 14.6800 14.1800 14.3200 686,800
Weekend
Weekend
14.3600 14.9400 14.3600 14.7000 522,400
15.0800 15.4400 14.3000 14.3700 938,900
15.0000 15.1700 14.8800 15.1600 508,600
15.0100 15.1200 14.7700 15.0000 639,700
15.0000 15.2100 14.8300 15.0200 459,200
Weekend
Weekend
15.0400 15.2000 14.9000 15.0300 544,600
14 · DEFA14A After-hours · 16:16 ET DEFA14A ↗ 13 · DEF 14A After-hours · 16:13 ET DEF 14A ↗
14.7700 15.2400 14.5800 15.0300 837,800
14.7700 14.9300 14.6000 14.8600 1,323,200
14.3300 14.5000 14.1300 14.3300 650,400
14.3300 14.4900 14.2400 14.4100 728,800
Weekend
Weekend
No trading
14.1600 14.4900 14.0300 14.4200 645,000
14.5400 14.6800 14.3400 14.3600 488,700
14.4000 14.7300 14.3000 14.4900 580,300
14.7500 14.7500 14.1700 14.2300 716,400
Weekend
Weekend
14.2100 14.6300 14.2100 14.6100 751,100
14.7700 14.9100 14.3300 14.4200 547,500
15.0000 15.1400 14.8000 14.9300 820,900
14.0800 14.9000 14.0800 14.8800 732,100
13.8800 14.3000 13.7800 14.2300 596,900
Weekend
Weekend
14.1600 14.1600 13.3400 13.5600 1,227,900
13.7500 14.1500 13.7100 14.0600 660,700
13.7900 14.0800 13.6700 13.8800 645,500
13.8100 13.9800 13.7100 13.8900 517,200
13.5600 13.7300 13.3200 13.7200 571,900
Weekend
Weekend
13.2600 13.6200 13.1500 13.3600 598,400
13.3700 13.5100 13.0300 13.1800 919,600
13.7900 13.8700 13.4700 13.6400 430,700
13.8700 14.2300 13.7800 13.9300 754,000
13.3600 13.9100 13.1300 13.8800 588,500
Weekend
Weekend
13.4800 13.7300 13.1900 13.5600 835,600
13.9600 13.9600 13.4500 13.8200 853,300
13.9600 14.3300 13.6900 14.0700 1,357,800
13.6000 13.9000 13.1700 13.6900 1,006,600
14.4000 14.5200 13.9000 14.0700 1,115,100
Weekend
Weekend
12 · 10-K After market open · 14:32 ET 10-K ↗
14.8900 14.8900 13.4100 14.4300 2,214,300
11 · 8-K After-hours · 16:04 ET 8-K ↗
15.2500 15.9600 14.4300 14.8900 1,881,900
10 · 8-K After-hours · 16:24 ET 8-K ↗
14.5900 14.5900 14.0900 14.3000 695,700
14.4600 14.5800 14.1800 14.4700 465,400
14.5500 14.5500 14.0300 14.3900 541,600
Weekend
Weekend
14.5300 14.8100 14.3800 14.5800 603,500
14.5100 14.7300 14.2900 14.6200 555,800
14.6000 14.9000 14.4700 14.5800 517,700
14.4700 14.7400 14.1300 14.5200 696,300
No trading
Weekend
Weekend
13.8800 14.4900 13.6500 14.4400 871,100
14.7500 15.0500 13.8900 13.9500 705,200
14.5000 14.6900 14.2300 14.6300 569,700
14.2200 14.3300 14.0100 14.2300 576,400
14.1900 14.6200 13.8100 14.2300 679,000
Weekend
Weekend
13.8400 14.2500 13.8000 14.1100 967,500
13.8700 13.9000 13.4800 13.6900 548,200
14.4500 14.5600 13.4600 13.7900 937,000
14.4300 14.4800 13.9500 14.3500 648,000
13.6800 14.2000 13.6700 14.0300 605,400
Weekend
Weekend
13.6500 13.9100 13.5200 13.8100 582,300
13.8500 14.0000 13.4000 13.8300 574,600
13.9200 13.9200 13.4500 13.6000 602,100
13.6300 13.9700 13.5500 13.8600 463,000
13.8200 13.9800 13.6100 13.6500 730,900
Weekend
Weekend
14.3400 14.6900 13.6100 13.7200 997,200
13.9900 14.3300 13.7900 14.1800 1,278,200
13.5500 13.9800 13.4300 13.9700 611,700
13.7200 13.9300 13.2700 13.4200 731,900
No trading
Weekend
Weekend
13.8000 13.9800 13.5800 13.9300 669,700
13.6100 13.9400 13.6100 13.7800 711,700
13.6700 13.9800 13.4300 13.6100 523,300
13.0100 13.7900 13.0000 13.6600 1,058,400
12.2700 12.9500 12.2600 12.9100 565,300
Weekend
Weekend
12.5500 12.6000 12.2500 12.4200 422,700
12.0800 12.5400 12.0800 12.5100 441,000
12.5100 12.5600 12.0400 12.1000 452,900
12.5500 12.5500 12.2800 12.4500 499,200
12.2400 12.6800 12.1400 12.5900 599,100
Weekend
Weekend
12.0200 12.1200 11.8400 12.1000 444,400
No trading
12.1500 12.1500 11.8700 11.9200 376,500
12.1500 12.1500 12.0100 12.1200 332,900
12.1200 12.1400 11.9100 12.1000 478,900
Weekend
Weekend
12.1600 12.2800 11.9600 12.1200 333,300
No trading
12.1800 12.2800 12.0400 12.2000 206,600
12.2800 12.3500 12.2100 12.2200 385,300
12.3600 12.5700 12.2800 12.3300 481,300
Weekend
Weekend
12.2800 12.4200 12.2100 12.2400 1,502,500
12.5100 12.7100 12.2800 12.3300 591,200
12.6600 12.7600 12.2400 12.3400 572,700
12.8200 12.9700 12.3800 12.6500 614,800
12.9900 13.0800 12.8600 12.8600 575,700
Weekend
Weekend
13.1500 13.2500 12.8400 12.9100 540,200
12.8500 13.2200 12.8500 13.1000 539,700
12.8600 13.2300 12.8600 12.9800 843,600
12.6500 13.0100 12.6500 12.9400 513,700
12.8800 13.0900 12.6200 12.7200 710,900
Weekend
Weekend
12.9700 13.0900 12.7600 12.8000 625,000
12.5400 12.9500 12.4800 12.9400 822,000
12.5000 12.6900 12.4200 12.5000 1,252,500
12.5500 12.6100 12.3100 12.4200 1,177,800
12.2200 12.6200 12.1600 12.5400 646,200
Weekend
Weekend
12.1100 12.4000 12.0800 12.3100 283,800
No trading
12.2000 12.2400 12.0500 12.1500 511,000
12.1100 12.2900 11.9500 12.1900 682,300
11.7300 12.1800 11.5600 11.9500 826,400
9 · 8-K Pre-market · 09:00 ET 8-K ↗
Weekend
Weekend
11.2700 11.6700 11.1700 11.5200 958,300
11.7600 11.9400 11.1900 11.2100 715,100
11.7300 11.8500 11.5100 11.5500 722,700
11.5100 11.9200 11.5000 11.8300 844,900
11.9400 12.0900 11.5900 11.6600 866,200
Weekend
Weekend
11.8700 11.9900 11.0100 11.9500 695,600
12.6400 12.6600 11.8900 12.0200 797,500
8 · 8-K After-hours · 16:13 ET 8-K ↗
12.6800 12.8400 12.6300 12.7100 716,400
12.5100 12.8700 12.4100 12.6800 669,000
12.6400 12.6600 12.2400 12.4700 700,500
Weekend
Weekend
12.6500 12.6500 12.1200 12.4200 1,314,900
13.0700 13.0700 12.5900 12.7000 751,900
12.5300 13.0300 12.5300 12.9700 956,900
12.5800 12.6100 12.3100 12.5200 964,000
12.0100 12.9900 11.9500 12.7400 2,020,300
Weekend
Weekend
7 · 8-K After market open · 13:55 ET 8-K ↗ 6 · 10-Q After market open · 11:51 ET 10-Q ↗
13.1000 14.0000 12.2500 12.3000 2,324,200
5 · 8-K After-hours · 16:25 ET 8-K ↗
13.6200 13.9000 13.2700 13.4400 1,499,500
13.0900 13.7400 12.9800 13.6600 1,105,900
12.8300 13.2500 12.6700 13.1400 780,800
13.0000 13.0800 12.8200 12.9200 751,500
Weekend
Weekend
12.9100 13.0400 12.8400 12.9500 619,300
12.3700 12.8800 12.3700 12.7800 908,200
12.3200 12.3900 12.1100 12.3200 660,700
12.0300 12.2900 12.0300 12.2600 677,800
11.7700 12.1300 11.7100 12.1000 790,800
Weekend
Weekend
11.4100 11.7200 11.4100 11.6800 617,100
11.6600 11.7900 11.4800 11.5100 725,600
11.2500 11.5900 11.2500 11.5900 668,600
10.8600 11.2600 10.8600 11.1300 630,400
10.9000 11.0900 10.7300 11.0600 763,400
Weekend
Weekend
11.0600 11.1500 10.7300 10.7400 1,330,700
11.1600 11.2000 10.9800 11.0600 675,400
11.0500 11.2000 10.9300 11.1500 658,400
11.1300 11.2100 10.8700 11.0300 728,900
11.1300 11.2500 11.0400 11.1400 856,900
Weekend
Weekend
11.4400 11.5400 11.1500 11.1600 841,400
11.6700 11.7400 11.2400 11.2900 591,400
11.1900 11.7200 11.1900 11.7200 692,600
11.2200 11.3300 11.1500 11.3100 387,000
11.3400 11.3400 11.1500 11.2800 393,500
Weekend
Weekend
11.2500 11.4500 11.1900 11.3100 812,900
11.0600 11.2400 10.9800 11.2400 373,100
11.2700 11.3200 11.1000 11.1300 426,600
11.1500 11.4300 11.1200 11.2100 465,500
10.8500 11.1500 10.7600 11.0900 554,500
Weekend
Weekend
11.0600 11.0800 10.8100 10.9200 1,180,200
10.8100 11.0700 10.7600 11.0400 570,400
10.8500 10.9900 10.6900 10.7500 490,200
10.7600 10.9000 10.6600 10.8800 388,600
10.5600 10.7800 10.5000 10.7400 661,800
Weekend
Weekend
10.6700 10.6700 10.5000 10.5300 609,000
10.6500 10.7500 10.5900 10.6700 638,600
10.4200 10.6800 10.3500 10.6500 459,100
10.5300 10.5800 10.3600 10.4300 471,400
10.5800 10.6200 10.4300 10.4800 429,300
Weekend
Weekend
10.5900 10.7100 10.3900 10.5000 519,400
10.3600 10.6300 10.3100 10.6300 1,388,100
10.3800 10.5400 10.3000 10.3100 611,200
10.2800 10.4100 10.1100 10.4100 1,905,800
No trading
Weekend
Weekend
10.4800 10.5100 10.3300 10.4000 406,300
10.3600 10.4600 10.2700 10.4400 485,600
10.2100 10.4200 10.2100 10.3000 587,600
10.3200 10.3900 10.2000 10.3500 624,200
10.3400 10.4100 10.2800 10.3200 680,000
Weekend
Weekend
10.0600 10.4300 9.9700 10.3900 1,075,000
9.8800 10.0000 9.8500 10.0000 457,100
4 · 8-K After-hours · 16:19 ET 8-K ↗
9.8100 9.9100 9.6500 9.9000 804,100
9.9500 10.0400 9.7600 9.7600 782,400
9.8100 9.9400 9.8000 9.9200 582,400
Weekend
Weekend
10.0100 10.1100 9.7800 9.8600 794,500
9.9000 10.0000 9.8600 10.0000 1,109,600
9.8500 10.1500 9.7800 10.0000 1,382,100
9.5800 9.9000 9.4500 9.8700 1,217,800
9.2600 9.6600 9.2600 9.4900 1,365,400
Weekend
Weekend
9.0400 9.3000 8.9900 9.2900 1,574,200
9.2100 9.2100 8.8600 8.9900 881,300
3 · 8-K After-hours · 16:08 ET 8-K ↗ 2 · 10-Q After market open · 12:31 ET 10-Q ↗
9.2000 9.4000 8.8400 9.0000 1,233,200
1 · 8-K After-hours · 16:37 ET 8-K ↗
8.7300 9.0100 8.6900 8.8900 1,049,100
8.7300 8.8800 8.6300 8.6800 662,800
Weekend
Weekend
8.8600 8.9300 8.6800 8.7100 685,400
8.8300 9.0400 8.7700 9.0200 1,111,500
9.0500 9.1600 8.9500 8.9800 1,100,200
9.1800 9.2000 9.0300 9.0500 705,000
9.0700 9.1600 8.9800 9.1300 700,200
Weekend
Weekend
9.1000 9.1300 8.9700 9.0300 627,800
8.9000 9.1100 8.7700 9.0400 981,700
8.7200 8.9700 8.6700 8.9500 1,231,000
8.3900 8.7000 8.3700 8.6100 1,075,600

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.

18 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After market open · 12:09 ET Summarise
16 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:50 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
14 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
13 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) After market open · 14:32 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:04 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:24 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After market open · 13:55 ET Summarise
6 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:51 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After market open · 12:31 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:37 ET Summarise