Hudson Technologies, Inc HDSN

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Hudson Technologies, Inc. - Common Stock · Company · Nasdaq · Basic Materials / Specialty Chemicals

Paper trade (simulated — no real money)

Fill: USD 5.3700 · FX 1 USD = 1.278120 SGD · about SGD 6.8635 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 9.36 → 5.37 · -42.6%
9.3607.1004.840 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 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 25 Oct 2025 — 26 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.

No data yet
Weekend
Weekend
5.3200 5.4200 5.2700 5.3700 425,800
5.3700 5.4600 5.3400 5.3600 404,500
5.3200 5.4300 5.2800 5.4100 381,200
5.1400 5.3400 5.1000 5.3100 628,700
5.1000 5.1600 5.0100 5.1400 293,800
Weekend
Weekend
5.0500 5.1300 4.9500 5.0100 401,200
5.0600 5.0800 5.0000 5.0400 344,200
5.1000 5.1100 4.9800 5.0600 559,400
5.1600 5.1800 5.1100 5.1600 210,300
5.1200 5.1600 5.1100 5.1200 174,800
Weekend
Weekend
5.1700 5.1900 5.1000 5.1400 282,600
5.1700 5.2000 5.1100 5.1700 292,200
5.3000 5.3000 5.1100 5.1500 349,300
5.2400 5.4100 5.2300 5.3100 295,300
5.2100 5.2400 5.1200 5.2200 303,700
Weekend
Weekend
5.3000 5.3100 5.2300 5.2300 206,700
5.1800 5.2800 5.1300 5.2500 320,000
5.1500 5.1600 5.0600 5.1500 680,700
5.1300 5.1700 5.0600 5.1500 400,700
5.1500 5.1600 5.0700 5.1000 261,300
Weekend
Weekend
5.2300 5.2500 5.1500 5.1600 272,700
5.1200 5.2500 5.0700 5.2300 821,200
5.2200 5.2200 5.1000 5.1400 423,100
5.2200 5.2800 5.1700 5.2300 379,700
5.1800 5.2200 5.1000 5.1900 559,200
Weekend
Weekend
5.1500 5.1900 5.1200 5.1700 552,900
5.2700 5.3200 5.1300 5.1500 327,900
5.2100 5.2400 5.1000 5.2100 360,000
5.3000 5.3100 5.1400 5.2000 424,400
5.3700 5.4100 5.2400 5.3300 367,000
Weekend
Weekend
5.4700 5.4900 5.3800 5.4100 448,800
5.3800 5.4500 5.3000 5.3500 591,300
5.3500 5.5000 5.2900 5.3200 486,500
5.3800 5.4000 5.2900 5.3500 330,300
No trading
Weekend
Weekend
5.2200 5.3600 5.2200 5.3500 296,100
5.1400 5.2800 5.1400 5.2500 409,400
5.1300 5.2100 5.1000 5.1200 618,200
5.3000 5.3400 5.1400 5.1400 468,200
5.3900 5.4000 5.3200 5.3400 374,700
Weekend
Weekend
5.4700 5.5300 5.3400 5.4300 621,100
5.4900 5.5900 5.3600 5.4800 776,300
5.5100 5.5200 5.2400 5.2900 594,100
5.5300 5.5300 5.4100 5.4700 610,700
5.6900 5.7100 5.5000 5.5200 529,300
Weekend
Weekend
5.6700 5.7000 5.6100 5.6300 814,000
5.7700 5.7900 5.5600 5.5700 699,100
5.6700 5.9600 5.6500 5.8600 893,600
6.2500 6.3200 5.5300 5.6400 1,622,000
5.6600 6.3800 5.5200 6.1500 2,289,100
Weekend
Weekend
5.6400 5.7400 5.6100 5.6700 289,700
5.6300 5.7200 5.6100 5.6700 298,500
5.5600 5.6300 5.5000 5.6000 466,600
5.7200 5.7500 5.5300 5.5300 491,800
5.6000 5.7700 5.5700 5.7000 599,500
Weekend
Weekend
26 · 10-Q After-hours · 16:05 ET 10-Q ↗
5.6800 5.7700 5.5700 5.6000 792,400
6.4100 6.4100 5.5200 5.6600 1,056,800
25 · 8-K Next filing day · accepted 05 Aug, 19:00 ET FORM 8-K ↗ 24 · 8-K After-hours · 16:10 ET FORM 8-K ↗
6.3400 6.3500 6.1600 6.2200 500,600
6.2600 6.3400 6.1700 6.3200 565,900
6.1800 6.2700 6.1500 6.2300 345,000
Weekend
Weekend
5.8200 6.0700 5.8200 6.0400 479,200
5.8800 5.9700 5.7200 5.8000 327,400
6.1600 6.2000 5.8000 5.8400 638,000
6.2600 6.3200 6.0900 6.1600 334,700
6.4000 6.4700 6.2400 6.2400 483,500
Weekend
Weekend
6.3300 6.3500 6.2100 6.3400 293,800
6.2700 6.3600 6.2600 6.3300 368,200
6.0100 6.2000 6.0100 6.1900 287,000
6.0900 6.1500 5.9800 6.0000 370,800
6.1700 6.1900 5.9900 6.1100 443,300
Weekend
Weekend
6.2400 6.3000 6.1600 6.1700 292,300
6.2300 6.3300 6.1900 6.3100 410,700
6.2300 6.3300 6.1300 6.2300 295,000
6.2100 6.3100 6.2100 6.2300 411,100
6.4300 6.4800 6.0600 6.2000 705,400
Weekend
Weekend
6.4000 6.4600 6.3500 6.4500 280,000
6.4200 6.5600 6.3300 6.4100 541,800
6.3200 6.4900 6.1700 6.4400 967,400
6.0400 6.3700 5.9800 6.3300 1,113,200
6.4000 6.5500 5.9900 6.0200 835,000
Weekend
Weekend
No trading
5.7200 6.0300 5.6900 5.9900 755,600
5.7500 5.9900 5.6600 5.6700 842,300
5.4400 5.7700 5.4100 5.7400 683,600
5.6100 5.6100 5.4000 5.4800 447,300
Weekend
Weekend
5.5800 5.6400 5.4400 5.5600 754,500
5.7800 5.8100 5.4900 5.5700 437,500
5.7600 5.9100 5.7600 5.7800 275,200
5.7100 5.8900 5.7100 5.7600 309,400
5.8800 5.9400 5.7200 5.7600 506,600
Weekend
Weekend
No trading
5.7200 5.9200 5.6400 5.8800 482,600
5.5600 5.7500 5.5500 5.6300 913,800
5.6000 5.7200 5.5500 5.5600 416,700
5.8000 5.9000 5.5900 5.5900 451,200
Weekend
Weekend
23 · 8-K After-hours · 16:05 ET FORM 8-K ↗
5.6100 5.8200 5.6100 5.7800 391,300
5.5300 5.6200 5.3200 5.5900 561,300
22 · 8-K Pre-market · 09:16 ET FORM 8-K ↗
5.5400 5.6900 5.4400 5.4500 514,000
5.4800 5.6700 5.4700 5.5400 464,500
5.4300 5.4900 5.4000 5.4500 282,500
Weekend
Weekend
5.5000 5.5400 5.3300 5.3600 454,200
5.3000 5.5300 5.3000 5.5000 595,100
5.2800 5.3100 5.2300 5.2700 344,400
5.2100 5.3600 5.2100 5.3000 331,100
5.3000 5.3600 5.1600 5.2400 380,100
Weekend
Weekend
5.3400 5.4000 5.2500 5.3200 410,000
21 · 8-K After-hours · 16:15 ET FORM 8-K ↗
5.4100 5.4400 5.3200 5.3700 367,400
5.1800 5.4300 5.1600 5.4200 851,400
5.1000 5.2400 5.0900 5.1300 589,800
No trading
Weekend
Weekend
5.1400 5.2300 5.0500 5.0600 497,000
5.0300 5.3300 4.9300 5.1700 1,244,400
20 · 8-K After-hours · 16:05 ET FORM 8-K ↗
4.9000 5.0100 4.6400 4.9600 801,100
4.9200 5.0100 4.8200 4.8900 499,100
5.0100 5.0900 4.9200 4.9500 789,500
19 · 8-K Pre-market · 08:35 ET FORM 8-K ↗
Weekend
Weekend
4.7800 5.0100 4.7000 4.9200 797,900
4.9300 5.0000 4.8200 4.8400 420,500
4.9500 4.9700 4.7900 4.9200 640,200
5.1500 5.1700 4.9400 4.9600 794,500
18 · 10-Q After-hours · 16:05 ET 10-Q ↗
5.2500 5.2500 5.1000 5.1100 710,900
Weekend
Weekend
5.3000 5.4000 5.2300 5.2500 562,500
5.7000 5.7200 5.2100 5.3000 1,293,600
17 · 8-K After-hours · 16:16 ET FORM 8-K ↗
6.3700 6.5800 6.2600 6.5400 374,000
6.2400 6.4000 6.2300 6.2900 372,200
6.2000 6.3000 6.0800 6.1800 212,800
Weekend
Weekend
6.2300 6.3100 6.1900 6.2500 235,600
6.0800 6.2700 6.0100 6.2600 160,200
6.2900 6.3100 6.0600 6.0800 210,200
6.3400 6.3500 6.2400 6.3400 145,600
6.3200 6.4100 6.2800 6.3300 343,600
Weekend
Weekend
6.3400 6.3600 6.2600 6.3000 156,000
16 · DEFA14A Pre-market · 09:19 ET DEFA14A ↗ 15 · DEF 14A Pre-market · 09:15 ET DEF 14A ↗
6.2300 6.4000 6.1300 6.3500 216,800
6.2000 6.3900 6.1300 6.2000 228,800
6.4000 6.5200 6.1400 6.1500 197,500
6.3400 6.4900 6.3300 6.3900 222,600
Weekend
Weekend
6.3000 6.4300 6.2800 6.3400 234,800
6.2100 6.3400 6.1200 6.1900 399,400
6.1600 6.2600 6.1000 6.2100 222,600
6.1700 6.2400 6.0900 6.1800 336,400
5.9400 6.1800 5.9400 6.1700 226,600
14 · 8-K Pre-market · 09:00 ET FORM 8-K ↗
Weekend
Weekend
6.1400 6.1700 5.9900 6.0000 186,200
6.0200 6.2200 6.0200 6.1500 179,500
6.1000 6.2200 6.0600 6.0900 355,000
5.7800 5.9000 5.7800 5.8600 308,400
5.8300 5.9100 5.8100 5.8400 195,500
Weekend
Weekend
No trading
5.7400 5.9200 5.6600 5.8400 249,000
5.9000 5.9400 5.7700 5.7900 325,500
5.8100 5.9000 5.6800 5.8800 564,200
5.8800 6.0400 5.6400 5.7200 518,600
Weekend
Weekend
6.1800 6.2100 5.7400 5.7600 276,700
6.1300 6.3600 6.1300 6.2200 463,200
6.1800 6.2400 6.0800 6.2200 306,800
5.9300 6.2000 5.9300 6.1200 464,500
5.9600 6.1300 5.9500 6.0100 363,500
Weekend
Weekend
5.9300 5.9500 5.7800 5.8100 425,400
5.8900 6.0200 5.8800 5.9200 307,800
13 · 8-K After-hours · 16:10 ET FORM 8-K ↗
6.0900 6.1500 5.9600 5.9700 399,800
5.9200 6.1300 5.9200 6.1100 422,500
12 · 10-K After-hours · 16:05 ET 10-K ↗
5.8400 5.9400 5.7900 5.8900 376,200
Weekend
Weekend
5.8200 5.8400 5.6200 5.7600 524,900
5.8600 5.9200 5.7800 5.8000 473,500
5.9500 6.0100 5.8400 5.9300 485,300
6.0200 6.1400 5.9500 5.9800 445,300
6.2000 6.2500 5.9500 6.0600 734,000
Weekend
Weekend
6.3600 6.4900 6.1000 6.2000 590,300
6.5000 6.9100 6.1000 6.3500 898,900
11 · 8-K After-hours · 16:15 ET FORM 8-K ↗
7.1400 7.3400 6.8500 7.1000 407,500
7.0600 7.1900 6.9300 7.1400 194,300
7.1000 7.2700 7.0200 7.2600 194,300
Weekend
Weekend
7.0500 7.1600 6.9700 7.1100 212,900
7.2000 7.2900 6.9500 7.1500 246,400
7.1600 7.2000 6.9500 7.1800 266,000
7.2200 7.2200 7.0200 7.1200 281,000
7.3700 7.3700 7.0200 7.2000 454,200
Weekend
Weekend
7.2800 7.4200 7.1600 7.3800 269,000
7.2300 7.4500 7.1400 7.3300 316,600
7.2300 7.3100 7.1500 7.2500 201,600
7.3900 7.3900 7.1500 7.2400 323,100
No trading
Weekend
Weekend
7.3500 7.4700 7.2100 7.4000 251,900
7.5300 7.6400 7.2500 7.3000 261,800
7.4600 7.5700 7.3800 7.5300 219,800
7.3300 7.5600 7.2900 7.4000 197,600
7.4200 7.5400 7.3000 7.3300 159,700
Weekend
Weekend
7.2300 7.4700 7.2300 7.4100 197,400
7.5400 7.6200 7.1800 7.2100 234,200
7.5900 7.7000 7.5800 7.6200 296,600
7.4000 7.5600 7.3300 7.5400 231,600
7.1400 7.4000 7.1100 7.3800 219,600
10 · 8-K Pre-market · 09:01 ET FORM 8-K ↗
Weekend
Weekend
7.0300 7.2000 7.0300 7.1700 193,800
9 · 8-K Pre-market · 08:45 ET FORM 8-K ↗
7.1700 7.1900 7.0300 7.1400 138,700
7.2500 7.3100 7.0400 7.1400 171,800
7.1600 7.2800 7.1200 7.2300 130,100
7.2500 7.2700 7.0900 7.1700 141,200
Weekend
Weekend
7.4300 7.4500 7.2500 7.2500 210,600
7.3700 7.4900 7.3700 7.4700 201,300
7.2700 7.3700 7.1400 7.3500 238,300
7.3800 7.4400 7.2300 7.2300 270,500
No trading
Weekend
Weekend
7.4100 7.5000 7.3700 7.4800 356,500
7.2800 7.4700 7.2500 7.4200 255,000
7.2800 7.3500 7.2300 7.2600 177,800
7.3300 7.4500 7.2800 7.2800 185,200
7.1300 7.3500 7.1000 7.3300 191,900
Weekend
Weekend
7.1000 7.2500 7.0500 7.1500 197,500
6.9900 7.1200 6.9900 7.1000 275,300
7.0100 7.1000 6.9600 7.0400 202,100
6.9400 7.0200 6.8500 6.9800 296,800
6.8300 7.0800 6.8300 6.9800 216,500
Weekend
Weekend
6.8700 6.9200 6.7500 6.8000 203,600
No trading
6.8200 6.9300 6.7700 6.8500 304,300
6.8400 6.9400 6.8000 6.8500 192,700
7.0000 7.0000 6.8500 6.8500 224,400
Weekend
Weekend
6.9700 7.0100 6.9200 7.0000 187,800
No trading
6.9500 6.9900 6.8900 6.9600 93,800
6.9100 6.9900 6.8100 6.9500 223,400
7.0900 7.1000 6.8300 6.9400 267,300
Weekend
Weekend
7.3300 7.3500 7.0200 7.0500 402,500
7.4100 7.5300 7.2400 7.3200 397,800
8 · 8-K After-hours · 16:15 ET FORM 8-K ↗
7.3600 7.5000 7.3300 7.3600 460,600
7 · S-3 After-hours · 16:05 ET S-3 ↗
7.3700 7.5000 7.2500 7.4100 445,700
7.4700 7.5300 7.3100 7.3600 513,100
Weekend
Weekend
7.5600 7.6200 7.4100 7.4600 458,100
7.2300 7.4700 7.1900 7.4200 344,500
6.9400 7.2600 6.8800 7.1900 490,300
6 · 8-K After-hours · 16:05 ET FORM 8-K ↗
7.2500 7.2700 6.9900 6.9900 317,700
7.3700 7.4900 7.1000 7.2600 664,200
Weekend
Weekend
7.5900 7.6800 7.2900 7.3100 1,488,900
7.5700 7.7400 7.5700 7.6300 393,600
7.3300 7.6700 7.3300 7.6400 514,900
7.2600 7.6000 7.2100 7.3100 698,900
7.1800 7.4000 7.0700 7.2600 753,000
5 · 8-K Pre-market · 09:00 ET FORM 8-K ↗
Weekend
Weekend
6.8600 6.9100 6.7300 6.8000 103,200
No trading
6.8000 6.8800 6.7300 6.8500 287,400
6.7500 6.8200 6.6900 6.8100 213,100
6.7200 6.7700 6.5600 6.7000 406,100
Weekend
Weekend
6.6200 6.9400 6.5300 6.7600 352,300
6.7300 6.8300 6.6100 6.6300 490,900
6.7500 6.8800 6.6100 6.6400 371,500
6.6100 6.8800 6.6100 6.7500 500,300
6.7900 6.9800 6.6300 6.6400 412,900
Weekend
Weekend
6.7000 6.9200 6.6700 6.7900 424,600
4 · 8-K After-hours · 17:00 ET FORM 8-K ↗
7.1400 7.1700 6.8500 6.8600 374,500
6.9900 7.3600 6.9800 7.2000 610,300
6.9600 7.1600 6.8800 7.0100 439,600
6.8500 7.1500 6.6500 6.9900 632,900
Weekend
Weekend
3 · 10-Q After-hours · 16:06 ET 10-Q ↗
6.7200 6.9400 6.4500 6.8500 1,011,600
7.6500 7.6800 6.5600 6.7000 1,261,900
2 · 8-K After-hours · 16:16 ET FORM 8-K ↗
8.5200 8.7900 8.4400 8.6300 311,800
8.7500 8.9600 8.1400 8.4900 535,200
1 · 8-K After-hours · 16:16 ET FORM 8-K ↗
9.0600 9.1000 8.9700 9.0600 148,400
Weekend
Weekend
9.1500 9.1800 8.9600 9.0800 124,100
9.0500 9.2500 9.0500 9.1900 156,900
9.2900 9.5200 9.0400 9.1400 144,400
9.3200 9.4700 9.2600 9.3200 158,000
9.5100 9.5700 9.1700 9.3600 217,200
Weekend
Weekend

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.

26 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
25 8-K FORM 8-K (opens SEC filing in a new tab) Next filing day · accepted 05 Aug, 19:00 ET Summarise
24 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
23 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
22 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:16 ET Summarise
21 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
20 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
19 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 08:35 ET Summarise
18 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
17 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
16 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 09:19 ET Summarise
15 DEF 14A DEF 14A (opens SEC filing in a new tab) Pre-market · 09:15 ET Summarise
14 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
13 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
11 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
10 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:01 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 08:45 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
7 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
5 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
2 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise