Supernus Pharmaceuticals, Inc SUPN

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Supernus Pharmaceuticals, Inc. - Common Stock · Company · Nasdaq · Healthcare / Drug Manufacturers - Specialty & Generic

Paper trade (simulated — no real money)

Fill: USD 40.7000 · FX 1 USD = 1.277900 SGD · about SGD 52.0105 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

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

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

USD 52.83 → 40.70 · -23.0%
57.00047.44037.880 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 28 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 2026 (Last year)

Daily Nasdaq 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.

Weekend
Weekend
41.6800 41.9400 39.9700 40.7000 1,159,336
41.5200 42.0900 40.7300 42.0700 937,400
28 · 8-K Pre-market · 01:07 ET FORM 8-K ↗
41.2300 42.0000 40.8600 41.2100 1,006,000
39.9500 41.7400 39.7700 41.2300 1,240,300
27 · 8-K After-hours · 20:51 ET 8-K ↗
37.7700 40.5200 37.7700 39.8400 1,509,100
Weekend
Weekend
39.4900 39.5000 37.5400 37.8800 1,441,600
26 · 8-K After-hours · 20:10 ET 8-K ↗
40.2100 41.3100 39.3600 39.5700 1,013,100
41.9300 43.2600 39.9700 40.1800 906,700
42.9400 43.2900 41.7100 42.0100 1,196,900
42.6700 43.2000 41.9000 42.8100 914,600
Weekend
Weekend
42.1800 43.1400 42.1500 42.6700 643,800
42.4100 43.4100 41.1400 42.1400 684,200
42.2400 43.3800 42.2400 43.0500 571,000
25 · DEFA14A After market open · 11:15 ET DEFA14A ↗
42.8600 43.1200 41.4000 42.8300 748,300
42.3800 43.2000 42.3800 42.7600 1,288,400
Weekend
Weekend
42.4700 43.1500 41.8800 42.3800 739,800
43.2100 43.6900 42.1500 42.1800 424,600
44.0300 44.1800 43.0300 43.0400 685,600
44.3900 44.9300 43.2000 43.9700 551,600
42.5900 44.6100 42.3800 44.6000 728,100
Weekend
Weekend
43.2100 43.6900 42.6500 42.6600 607,600
43.2200 44.0000 42.7700 43.2900 589,000
43.6600 44.4600 43.1400 43.3900 544,500
43.0400 44.2500 42.8200 43.7500 667,600
42.0000 42.9700 41.6800 42.7800 635,700
Weekend
Weekend
42.8900 42.8900 41.6000 42.0000 1,182,900
41.6600 43.4000 41.4600 42.9200 559,800
41.3100 41.8400 40.7500 41.3800 787,800
41.4900 41.7500 40.5100 41.2800 669,200
42.1600 42.5400 41.2300 41.4900 678,100
Weekend
Weekend
41.8100 42.4400 41.6200 41.6400 707,200
41.8400 42.5500 41.1100 41.6900 726,700
42.1700 42.5900 41.5000 42.0700 580,100
43.5600 43.5600 42.3200 42.4300 428,600
No trading
Weekend
Weekend
43.6600 44.1100 43.4300 43.5300 444,200
44.5600 44.5600 43.1600 43.9700 390,300
44.4200 45.0500 43.6700 44.0300 445,900
44.3500 44.7500 43.5300 43.7400 757,800
43.8200 44.3700 42.8400 44.2100 535,700
Weekend
Weekend
43.9500 44.3400 43.1200 43.7300 487,800
44.8700 45.0400 43.8900 44.1900 464,900
45.1100 45.4300 44.5000 44.8800 499,700
45.3700 45.8600 44.2300 45.3600 496,100
45.6000 45.8600 44.8200 45.1100 495,500
Weekend
Weekend
47.7100 47.8200 45.7900 45.8500 748,900
47.8600 48.2600 46.9300 47.4500 646,900
49.5000 49.8200 48.5100 48.5400 797,200
48.8000 49.5700 48.5400 49.0300 592,200
47.6600 48.6600 47.6600 48.2700 536,700
Weekend
Weekend
46.7000 48.3900 46.5700 48.2700 331,700
47.7400 48.1800 46.8700 47.1500 667,900
47.1500 47.9200 46.2600 47.8700 667,300
47.0100 48.6100 46.7700 46.8800 669,700
47.1100 47.7200 46.4700 47.0700 762,000
Weekend
Weekend
47.0000 47.8800 46.4300 47.6400 702,600
47.8200 48.4000 46.5500 46.7600 1,344,900
42.9500 47.8900 42.9100 46.9100 1,671,800
46.2300 46.5800 42.6300 43.2500 3,705,500
22 · DEFA14A After-hours · 17:06 ET DEFA14A ↗ 21 · 8-K After-hours · 17:00 ET FORM 8-K ↗
50.4500 52.5000 44.1700 46.0000 4,518,500
24 · 10-Q Pre-market · 06:56 ET 10-Q ↗ 23 · 8-K Pre-market · 06:46 ET 8-K ↗ 20 · DEFA14A Pre-market · 08:36 ET DEFA14A ↗ 19 · 8-K Pre-market · 08:34 ET FORM 8-K ↗ 18 · DEFA14A Pre-market · 06:46 ET DEFA14A ↗ 17 · 8-K Pre-market · 06:43 ET FORM 8-K ↗
Weekend
Weekend
45.1900 45.6700 44.3500 44.6300 573,600
46.3000 46.7700 45.5000 45.6100 466,900
47.6000 48.0000 46.0800 46.5700 522,100
47.7800 48.4500 46.7700 47.7300 538,200
46.5600 48.0800 45.8400 46.9800 523,000
Weekend
Weekend
47.0200 47.4600 46.0300 46.2000 521,900
46.4100 47.5400 46.0700 47.1900 463,300
16 · 8-K After-hours · 17:07 ET 8-K ↗
47.8700 48.1300 46.7900 46.9400 430,100
47.0000 48.0200 46.3900 47.8700 450,300
48.0900 48.7900 47.3000 47.4200 618,800
Weekend
Weekend
48.1500 49.0600 47.9000 48.0400 439,400
47.5300 48.3000 47.2400 48.2100 593,400
46.8100 47.7400 46.2000 47.7300 500,500
46.8900 47.5700 46.0900 46.6600 824,000
48.0900 48.2400 46.9100 47.3500 685,300
Weekend
Weekend
48.8000 48.8000 47.3900 48.4600 1,126,200
50.8200 51.3700 47.8800 48.7500 1,296,200
47.8500 50.6200 47.5500 50.4400 1,430,800
47.7400 48.3400 47.0400 47.9400 1,017,800
47.6200 48.1200 46.7600 47.2400 882,200
Weekend
Weekend
No trading
47.4900 48.1100 46.9700 48.0500 969,000
46.9800 47.6200 45.9900 47.4100 902,200
46.6400 47.0800 46.0000 46.5100 1,146,300
46.4900 46.8500 45.8000 46.8000 974,400
Weekend
Weekend
44.7500 47.1300 44.7500 46.8400 3,338,800
44.9400 45.4600 44.4900 44.7500 697,600
44.5500 45.5000 44.1200 45.1400 759,700
44.6900 45.5000 44.4400 44.4800 544,600
44.5000 45.0000 44.0900 44.4800 513,600
Weekend
Weekend
No trading
15 · 8-K After-hours · 16:55 ET 8-K ↗
44.0700 44.5800 43.5400 44.3800 1,096,000
43.3700 44.0100 42.5000 43.5800 563,000
44.0900 44.2600 42.4500 43.5800 720,100
44.3600 44.4400 42.7400 43.8600 902,300
Weekend
Weekend
45.7100 45.7100 44.1600 44.4100 825,400
45.0600 45.8900 44.4100 45.5500 478,300
45.4400 46.5800 44.9800 45.0900 380,100
44.8600 45.7900 44.7000 45.6600 380,800
44.9400 45.5900 44.3400 44.4800 431,300
Weekend
Weekend
45.0500 45.7300 44.6000 44.7500 574,100
44.6600 45.7200 44.4300 44.7000 460,500
43.9300 44.9800 43.4500 44.0400 1,003,100
44.2500 44.4700 43.4500 44.0700 711,300
45.8300 46.1600 44.1700 44.7600 571,000
Weekend
Weekend
46.6000 47.1500 45.9600 46.1800 544,800
46.6300 47.7600 45.9200 46.8500 635,600
47.7600 48.3800 46.4000 46.6400 711,000
48.4400 48.6800 47.4200 47.7700 474,800
No trading
Weekend
Weekend
49.3800 49.8300 48.1700 48.2100 526,800
48.6800 49.6600 47.9800 49.3800 529,500
14 · 8-K After-hours · 16:37 ET 8-K ↗
48.2700 49.2400 47.6700 48.6900 606,200
48.3800 48.5300 47.5200 47.6200 591,500
49.3400 50.0000 47.8500 48.3300 568,900
Weekend
Weekend
50.8800 50.8800 49.1500 49.4300 616,100
51.7300 52.3500 50.5800 51.2000 558,700
50.0200 51.5000 50.0200 51.3600 432,300
49.6100 50.5800 48.8400 50.5300 589,600
51.0400 51.7500 49.1300 49.3700 853,200
Weekend
Weekend
52.4600 52.5900 50.3600 51.5300 854,500
51.4500 52.5000 49.7800 52.2800 1,055,300
50.6700 52.9600 46.8700 51.4500 1,922,600
13 · 10-Q After-hours · 16:15 ET 10-Q ↗ 12 · 8-K After-hours · 16:09 ET 8-K ↗
49.0700 50.5500 48.1000 49.1900 1,121,300
47.5300 49.0100 47.3400 48.6300 1,391,900
Weekend
Weekend
48.0200 48.3300 47.1700 47.8500 622,200
11 · DEFA14A After-hours · 17:02 ET DEFA14A ↗ 10 · DEF 14A After-hours · 17:00 ET FORM DEF 14A ↗
48.7500 49.2400 47.8500 48.0000 855,500
48.4200 48.9000 47.6200 48.5500 512,500
50.0600 50.1300 48.1200 48.6900 697,100
49.5800 50.1800 49.1800 49.4600 709,700
Weekend
Weekend
50.3900 50.5100 48.7100 49.7600 482,200
50.7500 51.4300 49.4500 50.3900 301,600
9 · 8-K After-hours · 16:32 ET 8-K ↗
49.4200 50.3200 49.0100 50.2900 391,700
51.0600 51.1300 48.9900 49.1200 502,300
51.1000 51.3700 50.5000 51.2500 426,500
Weekend
Weekend
49.7800 52.3100 49.6100 51.3900 797,800
49.8300 49.8900 48.3500 49.2200 494,500
50.1100 50.9100 49.4800 49.9400 349,000
50.6300 51.0300 49.7600 50.1100 460,000
50.6400 50.8000 49.6500 49.9500 347,400
Weekend
Weekend
51.6200 51.7100 50.0000 50.6800 445,300
51.4300 52.3200 51.0000 51.5000 498,800
51.9700 52.3700 50.7100 51.6100 618,500
8 · 8-K After-hours · 17:25 ET FORM 8-K ↗
50.2000 51.0600 49.5700 50.9600 873,900
50.2300 51.2400 49.8200 50.5400 438,400
Weekend
Weekend
No trading
50.4900 51.3700 50.0800 50.4800 472,500
51.3700 52.6900 51.3200 51.4400 624,500
49.8100 51.9400 49.6500 51.6900 396,200
49.8800 50.0700 48.8500 49.3500 560,700
Weekend
Weekend
50.3600 51.1300 49.0000 49.5200 547,800
50.3700 51.0000 49.2200 50.8000 387,400
50.0100 50.7800 49.8100 50.0600 438,200
48.8000 49.8700 48.2400 49.3800 660,900
48.8600 49.3600 47.7500 49.2500 831,300
Weekend
Weekend
49.0900 49.2900 46.8300 47.7600 1,279,900
49.0700 49.8700 48.5700 48.8400 569,100
50.4800 50.4800 48.9100 49.2900 576,000
50.1300 51.1500 49.4000 50.8200 549,300
50.0100 51.0000 47.7100 50.2100 518,500
Weekend
Weekend
50.7600 51.8100 49.6400 49.9100 802,100
51.8000 52.2000 50.4200 50.4600 534,900
53.1600 53.4100 51.3800 53.2200 555,000
54.2900 56.0000 53.6100 53.6700 514,500
53.5600 54.3000 52.2700 54.1700 801,800
Weekend
Weekend
53.4300 54.2400 52.2700 53.8700 649,600
54.8100 55.3400 52.5000 54.2700 880,200
54.7200 56.4900 54.1600 55.5800 616,000
54.2700 55.0000 52.9500 54.5600 720,200
7 · 10-K After-hours · 16:40 ET 10-K ↗
53.9900 55.2800 53.3000 55.0900 474,100
Weekend
Weekend
56.5900 56.5900 53.1100 54.7300 875,700
55.6000 56.3800 54.0500 55.7500 1,249,200
56.5000 59.6800 55.3500 56.3200 2,820,400
6 · 8-K After-hours · 16:22 ET 8-K ↗ 5 · 8-K After-hours · 16:13 ET 8-K ↗
50.9500 53.6800 50.7700 53.3000 2,208,200
50.7500 51.2300 49.6300 50.6900 563,500
Weekend
Weekend
51.4800 51.8800 50.1900 50.8600 758,600
50.2700 51.6300 49.6000 51.3500 774,000
51.6500 51.6500 50.0300 50.2000 494,600
50.8700 51.9700 50.4600 51.6200 721,000
No trading
Weekend
Weekend
49.8500 51.4100 49.4600 50.8400 738,700
4 · 8-K After-hours · 16:16 ET 8-K ↗
51.3700 51.5900 49.7600 49.8500 675,900
51.1700 51.6100 49.9400 51.3400 656,700
51.4400 51.9300 50.6400 51.1800 495,000
51.7500 51.9600 50.3600 51.3000 654,400
Weekend
Weekend
50.0100 51.9900 50.0100 51.6500 893,900
48.9800 50.1000 48.9300 49.3700 565,500
48.4200 49.4700 48.2000 49.0800 665,300
48.8600 49.7100 47.2900 48.4000 773,500
48.1500 49.4900 48.1100 48.7800 1,011,500
Weekend
Weekend
48.7300 49.0700 48.0200 48.1600 792,900
48.7400 49.3600 48.0400 49.0600 826,800
3 · 8-K After-hours · 17:28 ET 8-K ↗
49.4100 50.0900 48.4100 48.9400 788,900
49.1100 49.5300 48.7300 49.4400 478,200
48.0700 49.6700 48.0700 49.1600 815,400
Weekend
Weekend
48.8100 49.0400 47.9400 48.2500 699,900
49.6800 50.4600 48.9800 49.1000 782,400
49.6500 50.2500 48.8400 49.5200 506,400
49.7200 50.5500 48.8800 49.8200 935,200
No trading
Weekend
Weekend
50.1900 50.4200 49.5200 50.0000 581,500
51.7800 52.3400 50.0800 50.2600 653,400
51.2300 52.2100 50.6100 51.8000 701,300
51.0700 51.5700 49.4100 51.4500 698,400
52.1700 52.5000 50.6500 51.3600 712,800
Weekend
Weekend
52.0000 52.3900 50.4500 51.1100 1,220,300
51.3200 51.8300 50.4500 51.1700 352,800
50.1500 51.4200 49.9000 51.2400 587,300
49.1800 49.5400 47.8000 49.2600 650,000
49.2500 49.7700 48.2700 49.4000 448,600
Weekend
Weekend
49.7000 50.0500 48.3700 49.4700 374,900
No trading
50.0000 50.1000 49.3200 49.7000 364,300
51.3200 51.4100 49.6900 49.8900 367,700
51.5500 51.7500 51.1400 51.2500 385,100
Weekend
Weekend
51.7700 52.0200 51.2900 51.5700 366,400
No trading
52.2100 52.3000 51.0100 51.7700 209,000
51.4700 52.2800 51.2500 51.7100 1,323,500
51.3700 51.6600 50.6100 51.5000 471,700
Weekend
Weekend
48.9000 52.1100 47.9800 51.4800 1,620,500
48.8700 49.7800 48.6300 49.2800 722,200
48.4600 49.4000 48.1800 48.7500 495,500
47.2800 48.8400 47.2000 48.3200 619,200
47.2300 47.8000 46.7600 47.2800 687,700
Weekend
Weekend
46.9600 47.5700 46.3600 47.1600 611,800
46.4200 47.3400 45.8800 46.5100 451,800
45.6200 46.9000 45.4300 46.1600 663,500
47.0100 47.2400 45.3600 45.4200 584,100
46.3200 47.2600 45.7500 47.1600 919,300
Weekend
Weekend
44.9400 45.8800 44.5100 45.6800 458,600
44.7600 45.1000 44.2800 45.1000 493,700
44.2700 45.0700 44.2100 44.7600 527,500
44.7000 44.9000 44.0900 44.1200 624,400
45.3800 45.5800 44.6500 44.7000 564,700
Weekend
Weekend
46.3900 46.5700 45.5300 45.5900 433,400
No trading
46.1400 47.0000 45.7200 46.2600 989,400
45.6200 46.7900 45.1600 46.0800 994,000
45.5000 46.0000 45.0000 45.1500 821,300
Weekend
Weekend
44.7300 46.0900 44.3700 45.3200 636,500
46.2300 46.4700 44.7600 44.7900 744,300
44.6900 46.0000 44.5200 45.7000 541,800
45.1100 45.7300 44.0500 44.9000 810,600
45.3000 45.9600 44.7000 45.0900 700,100
Weekend
Weekend
44.4800 45.5800 44.2200 45.0000 724,900
44.6100 45.7000 44.2300 44.4400 1,143,100
46.0600 46.2600 44.1200 44.6200 1,402,000
45.4000 46.5900 44.4700 46.1100 1,026,500
46.0800 46.5300 44.5100 45.4000 1,094,200
Weekend
Weekend
46.7700 47.4900 45.8200 46.0200 928,000
2 · 10-Q After-hours · 17:01 ET 10-Q ↗
47.0800 47.6900 45.6300 47.2700 1,441,700
44.7000 51.5200 43.1100 47.1100 3,999,000
1 · 8-K After-hours · 16:17 ET 8-K ↗
55.4300 57.4000 54.6100 57.0000 1,478,900
55.2800 56.1700 54.2700 55.7000 1,090,900
Weekend
Weekend
56.3300 57.3300 54.2100 55.1300 904,200
55.6100 57.6500 55.0200 56.5000 859,200
54.9000 55.9500 53.1600 55.6800 2,314,800
52.7200 53.3800 51.8400 53.1700 410,400
54.0000 54.7900 52.6100 52.7200 507,600
Weekend
Weekend
52.3000 53.2800 52.3000 52.8300 840,100

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.

28 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 01:07 ET Summarise
27 8-K 8-K (opens SEC filing in a new tab) After-hours · 20:51 ET Summarise
26 8-K 8-K (opens SEC filing in a new tab) After-hours · 20:10 ET Summarise
25 DEFA14A DEFA14A (opens SEC filing in a new tab) After market open · 11:15 ET Summarise
24 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 06:56 ET Summarise
23 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:46 ET Summarise
22 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
21 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
20 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 08:36 ET Summarise
19 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 08:34 ET Summarise
18 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 06:46 ET Summarise
17 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 06:43 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:55 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:37 ET Summarise
13 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
11 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
10 DEF 14A FORM DEF 14A (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:32 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 17:25 ET Summarise
7 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:40 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:28 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:01 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:17 ET Summarise