Ironwood Pharmaceuticals, Inc. - Class A IRWD

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Ironwood Pharmaceuticals, Inc. - Class A Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 3.7100 · FX 1 USD = 1.290100 SGD · about SGD 4.7863 per unit

Sign in to place simulated trades. 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 0.80 → 3.71 · 363.8%
5.3903.0700.750 1 2 3 4 5,6 7 8 9 10 11 12 13,14 15,16 17 18 19 20 Jul 25Oct 25Jan 26Apr 26Jul 26

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

Price & SEC Filing History 26 Jul 2025 — 27 Jul 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
3.7900 3.8400 3.7000 3.7100 1,108,900
3.7700 3.8400 3.7600 3.7900 1,074,900
3.8900 3.9300 3.8500 3.8800 1,052,700
3.8700 3.9200 3.8100 3.9100 1,164,200
3.9200 4.0200 3.8400 3.8500 1,801,200
Weekend
Weekend
3.8300 4.0100 3.8000 3.8600 1,804,000
3.9300 3.9400 3.8100 3.8700 2,014,300
4.0400 4.1400 3.9900 4.0000 1,366,500
4.1800 4.2300 3.9400 3.9800 2,118,800
4.3800 4.3900 4.1400 4.2100 2,268,700
Weekend
Weekend
4.6200 4.6500 4.3700 4.4700 2,775,800
4.6900 4.7800 4.5500 4.6700 3,141,600
4.6800 4.8800 4.5900 4.7700 4,987,300
4.4800 4.6700 4.4100 4.4700 3,479,100
4.3300 4.4700 4.2700 4.3800 3,001,600
Weekend
Weekend
No trading
4.1700 4.3900 4.1600 4.3300 2,650,100
4.1400 4.2900 4.0600 4.1200 1,652,800
4.2500 4.3200 4.1200 4.2100 2,586,100
4.0800 4.3600 3.9900 4.3000 3,501,900
Weekend
Weekend
3.7900 4.1700 3.7900 4.1300 7,108,500
3.9500 3.9800 3.8000 3.8400 1,659,100
3.8000 4.0100 3.8000 3.9100 1,764,500
3.7700 3.9200 3.7600 3.8600 1,445,000
3.6000 3.9100 3.5700 3.8200 2,523,900
Weekend
Weekend
No trading
20 · 8-K After-hours · 16:14 ET FORM 8-K ↗
3.5900 3.6500 3.4900 3.5400 4,942,500
3.6600 3.7200 3.5100 3.5200 1,629,200
3.7500 3.7900 3.6600 3.6600 1,825,400
19 · 8-K After-hours · 16:05 ET FORM 8-K ↗
3.7700 3.7700 3.6400 3.6900 2,004,900
Weekend
Weekend
3.6500 3.7000 3.5800 3.6500 1,868,700
3.3700 3.7800 3.3300 3.6300 2,781,400
3.2000 3.4100 3.2000 3.3500 1,873,900
3.2700 3.3900 3.1500 3.2200 2,029,500
3.4900 3.4900 3.2500 3.2900 1,502,100
Weekend
Weekend
3.3700 3.4700 3.3100 3.3100 1,334,400
3.2500 3.4600 3.2500 3.4000 1,876,500
3.3000 3.3000 3.1900 3.2400 2,685,900
3.4500 3.4500 3.2500 3.2800 1,900,500
3.5200 3.5700 3.4500 3.4600 1,699,500
Weekend
Weekend
3.6300 3.6700 3.5000 3.5700 2,034,700
3.6400 3.7200 3.5500 3.6000 1,882,100
3.8800 4.0300 3.6900 3.7100 2,944,000
3.9200 4.0000 3.8300 3.9000 2,783,900
No trading
Weekend
Weekend
3.8600 3.9300 3.8000 3.9200 1,936,100
18 · 8-K/A After-hours · 16:05 ET FORM 8-K/A ↗
3.8100 3.8700 3.7100 3.8500 2,077,100
3.7200 3.9400 3.6700 3.9200 3,232,500
3.5300 3.7200 3.4200 3.6700 3,435,200
3.5500 3.6100 3.4200 3.5000 2,443,700
Weekend
Weekend
3.5800 3.5900 3.4700 3.5800 2,175,000
3.6500 3.7700 3.5400 3.6700 2,425,100
4.0500 4.0500 3.5700 3.6800 4,412,300
17 · 8-K Pre-market · 08:00 ET FORM 8-K ↗
4.0800 4.1200 3.9300 4.0900 1,863,800
4.2500 4.3600 4.0800 4.1700 2,267,600
Weekend
Weekend
4.2600 4.3800 4.0100 4.2200 2,552,800
16 · 10-Q After-hours · 16:08 ET 10-Q ↗
4.6800 4.8000 3.9500 4.1700 4,964,800
15 · 8-K Pre-market · 07:10 ET FORM 8-K ↗
4.7800 4.8800 4.6100 4.8300 3,764,600
4.6400 4.7300 4.5600 4.6700 4,452,800
4.3500 4.6400 4.3000 4.5900 2,739,700
Weekend
Weekend
4.1400 4.4800 4.0800 4.4400 1,738,100
4.1800 4.3000 4.1000 4.1300 1,135,200
4.2100 4.4900 4.1100 4.1500 2,089,200
14 · DEFA14A After-hours · 16:09 ET DEFA14A ↗ 13 · DEF 14A After-hours · 16:06 ET DEF 14A ↗
4.0100 4.3500 3.9700 4.2000 1,894,200
3.9200 4.0700 3.9200 4.0400 1,918,600
Weekend
Weekend
3.7900 3.9300 3.7200 3.9300 1,323,800
4.1600 4.1800 3.7700 3.7900 1,833,700
4.1000 4.2300 4.0900 4.1800 1,199,900
4.4100 4.4200 4.0600 4.0700 1,912,900
4.3800 4.4500 4.3600 4.4200 1,090,700
Weekend
Weekend
4.4500 4.5000 4.3700 4.4300 1,957,600
4.4300 4.4500 4.2400 4.3300 1,853,600
4.2000 4.4800 4.1300 4.3700 2,725,300
3.9600 4.3100 3.9500 4.0400 3,613,700
3.5800 3.6800 3.5300 3.6500 906,000
Weekend
Weekend
3.6000 3.6500 3.5100 3.6300 1,223,000
3.5000 3.6200 3.4100 3.6000 1,050,900
3.5400 3.6000 3.4600 3.5100 1,540,100
3.4900 3.5000 3.3400 3.4600 1,090,500
3.5100 3.6500 3.4900 3.5300 1,278,600
Weekend
Weekend
No trading
3.7600 3.7700 3.5200 3.5400 1,888,800
3.5900 3.9300 3.5600 3.9000 2,677,000
3.2700 3.6000 3.2700 3.5100 3,159,200
3.0600 3.3400 3.0500 3.2300 1,916,200
Weekend
Weekend
3.1000 3.2000 3.0300 3.0600 1,350,600
3.1300 3.2600 3.1300 3.1500 1,146,000
3.0900 3.2600 3.0900 3.1900 1,118,700
3.2600 3.2600 3.0400 3.0400 1,689,500
3.1800 3.4000 3.1800 3.2900 2,856,600
Weekend
Weekend
3.2000 3.2500 3.0200 3.0400 14,227,600
3.1400 3.2600 3.0600 3.2300 3,414,700
3.2200 3.3100 3.1300 3.1700 3,238,100
3.3700 3.5200 3.0500 3.2500 10,411,600
3.4400 3.5000 3.3300 3.3700 1,684,000
Weekend
Weekend
3.4000 3.5100 3.3400 3.3700 1,469,000
3.5700 3.6500 3.3600 3.3800 1,827,500
3.6900 3.8300 3.6500 3.6800 1,544,300
12 · 8-K Pre-market · 07:05 ET FORM 8-K ↗
3.7000 3.9300 3.6400 3.7000 2,430,300
3.3900 3.6800 3.3100 3.6500 2,551,500
Weekend
Weekend
3.5200 3.6400 3.4300 3.5000 1,441,800
3.6800 3.8200 3.5600 3.6200 2,124,700
3.6700 3.8000 3.5600 3.7400 1,927,900
3.4500 3.6500 3.3800 3.6400 2,555,000
3.3200 3.6700 3.2400 3.5700 2,919,200
Weekend
Weekend
3.5500 3.5600 3.2200 3.4200 4,630,500
11 · 10-K After-hours · 16:09 ET 10-K ↗
3.4900 3.7400 3.4600 3.6600 6,766,300
3.6000 3.6300 2.9500 3.3600 11,572,800
10 · 8-K Pre-market · 07:11 ET FORM 8-K ↗
3.6900 3.7900 3.6000 3.7900 3,668,000
3.9300 4.0500 3.6900 3.7500 3,391,200
Weekend
Weekend
4.5500 4.5600 3.8100 3.9600 5,826,700
4.7500 4.7500 4.5300 4.6100 1,907,300
4.7000 4.8300 4.6000 4.7800 1,673,200
4.4800 4.8800 4.4700 4.7800 2,085,300
No trading
Weekend
Weekend
4.5200 4.6900 4.3500 4.5000 1,972,800
4.4400 4.6300 4.2200 4.6100 2,135,000
4.6400 4.6500 4.2800 4.4400 2,602,600
4.8400 4.8500 4.5500 4.5900 3,128,400
4.6200 4.9100 4.5900 4.8400 3,443,300
Weekend
Weekend
4.5200 4.7100 4.4100 4.5600 2,978,800
4.5200 4.6900 4.4200 4.4500 1,623,800
4.8000 4.8500 4.4400 4.4900 2,569,000
5.0000 5.1000 4.7600 4.7900 2,353,000
4.8700 5.1300 4.7800 4.9400 2,123,200
Weekend
Weekend
4.8100 5.0000 4.7100 4.8900 2,279,200
4.7800 5.0000 4.7200 4.8600 1,596,100
5.1300 5.1800 4.7700 4.7900 2,136,400
5.2100 5.3000 4.9900 5.1400 1,790,300
5.3000 5.3100 5.0500 5.1800 2,020,900
Weekend
Weekend
5.3600 5.4200 5.1600 5.2300 2,899,500
5.3100 5.5700 5.1500 5.3900 3,905,500
4.5800 5.3300 4.5800 5.3100 4,877,400
4.3500 4.6200 4.1700 4.5800 2,967,300
No trading
Weekend
Weekend
4.5200 4.8000 4.4700 4.5000 2,643,000
4.5000 4.5700 4.2200 4.5200 4,108,400
4.6300 4.7100 4.5000 4.5400 1,739,400
4.4700 4.7100 4.3500 4.6400 3,790,900
4.1100 4.5100 4.0400 4.4700 4,832,400
Weekend
Weekend
4.0000 4.1500 3.8700 4.0600 3,144,900
4.0400 4.1300 3.9400 3.9800 2,353,900
4.2900 4.2900 4.0500 4.0800 2,565,100
4.5500 4.6600 4.0600 4.3000 5,372,400
4.5200 5.0200 4.5000 4.5900 13,464,900
Weekend
Weekend
4.6000 5.7800 4.2000 4.2700 85,044,300
9 · 8-K Pre-market · 07:05 ET FORM 8-K ↗
No trading
3.3300 3.3800 3.2900 3.3700 2,067,500
3.2200 3.3900 3.1900 3.3300 1,219,500
3.1500 3.2700 3.1100 3.2100 2,086,500
Weekend
Weekend
3.2400 3.2400 3.1400 3.2000 765,900
No trading
3.2000 3.2800 3.1200 3.2600 584,000
3.2500 3.2500 3.1000 3.2100 976,500
8 · 8-K Pre-market · 07:06 ET FORM 8-K ↗
3.1100 3.3500 3.0800 3.2300 3,629,400
Weekend
Weekend
3.2600 3.3400 3.1200 3.1300 5,338,000
3.3900 3.4400 3.2100 3.2600 3,254,700
3.5400 3.6100 3.3200 3.3700 4,204,900
3.5500 3.6200 3.4200 3.5400 3,954,800
3.6000 3.8400 3.5600 3.5900 2,489,400
Weekend
Weekend
3.6800 3.6800 3.5300 3.5800 1,529,000
3.7000 3.8500 3.5000 3.6800 1,584,000
3.6100 3.8500 3.5800 3.6900 2,518,000
3.4700 3.6300 3.4200 3.6100 1,911,400
3.5600 3.5700 3.2200 3.4700 2,500,600
Weekend
Weekend
3.7300 3.8000 3.3600 3.4800 2,062,000
3.7200 3.7600 3.5200 3.7300 1,782,400
3.5200 3.7700 3.4000 3.7300 1,516,300
3.5200 3.5500 3.3600 3.5000 1,391,900
3.4800 3.7000 3.4500 3.5000 2,213,200
Weekend
Weekend
3.9200 3.9300 3.4000 3.5000 1,861,700
No trading
3.3300 3.9300 3.2500 3.8600 5,819,000
7 · 8-K Pre-market · 07:00 ET FORM 8-K ↗
3.3300 3.3400 3.0700 3.1300 1,414,200
3.1800 3.4000 3.1700 3.3200 1,728,900
Weekend
Weekend
3.2000 3.2900 3.0600 3.1600 1,917,600
3.2900 3.4400 3.0500 3.1700 3,018,900
3.1100 3.3000 3.0000 3.1800 2,253,000
3.0900 3.2000 2.9600 3.1100 2,652,500
3.1200 3.4700 3.0100 3.1300 3,985,600
Weekend
Weekend
3.4100 3.4200 3.1200 3.1400 2,717,900
3.0500 3.5300 3.0200 3.3700 4,597,800
2.9800 3.2300 2.8500 3.1100 4,770,100
2.5000 2.9800 2.4000 2.8900 5,144,500
2.4400 2.9700 2.3100 2.5300 20,171,800
6 · 8-K Pre-market · 07:12 ET FORM 8-K ↗ 5 · 10-Q Pre-market · 07:01 ET 10-Q ↗
Weekend
Weekend
2.0600 2.0600 1.8800 1.9200 2,026,300
2.0500 2.0800 1.9500 2.0500 1,218,600
1.8800 2.2300 1.8800 2.0600 4,055,400
1.8100 1.8900 1.7600 1.8700 1,144,700
1.9600 2.1000 1.8000 1.8600 2,937,900
Weekend
Weekend
1.6500 1.9400 1.6100 1.9200 4,360,900
1.5000 1.5800 1.4700 1.5000 1,132,600
1.5200 1.6500 1.5000 1.5100 942,800
1.6200 1.6400 1.5200 1.5400 1,085,800
1.6800 1.7700 1.6300 1.6300 881,700
Weekend
Weekend
1.6500 1.6700 1.6000 1.6600 526,700
1.5500 1.6500 1.5200 1.6300 631,200
1.5600 1.5900 1.5000 1.5700 886,300
1.5300 1.5800 1.5000 1.5600 601,500
1.4900 1.5500 1.4400 1.5400 947,300
Weekend
Weekend
1.5200 1.5700 1.4300 1.4300 1,054,600
1.6400 1.7100 1.5100 1.5500 1,213,500
1.5400 1.6200 1.5200 1.6100 1,001,900
1.4800 1.5200 1.4100 1.4800 896,100
1.6400 1.6400 1.4700 1.4800 1,075,500
Weekend
Weekend
1.8700 1.9400 1.5800 1.5900 1,719,600
4 · 8-K Pre-market · 07:05 ET FORM 8-K ↗
1.5900 1.7700 1.5700 1.7700 1,730,400
1.5400 1.6100 1.5300 1.5800 909,300
1.5000 1.5600 1.4300 1.5200 1,323,600
1.5400 1.6000 1.4700 1.4800 822,400
Weekend
Weekend
1.6300 1.7300 1.4100 1.5500 2,769,600
1.4800 1.6100 1.4500 1.6100 756,200
1.2900 1.5300 1.2900 1.4600 1,462,600
1.4000 1.4600 1.3100 1.3100 1,968,600
1.4000 1.4500 1.3500 1.4200 1,072,400
Weekend
Weekend
1.2600 1.4000 1.2600 1.3900 1,102,200
1.3600 1.3600 1.2700 1.2700 652,100
1.4100 1.4100 1.3000 1.3700 707,200
1.4400 1.5200 1.3800 1.3900 1,175,700
1.4100 1.4600 1.3500 1.4400 772,400
Weekend
Weekend
1.4500 1.4500 1.3500 1.4100 2,969,900
1.2800 1.4600 1.2800 1.4600 1,268,100
1.3100 1.3500 1.2800 1.2800 3,197,700
1.2800 1.3300 1.2700 1.3000 662,300
1.3200 1.3200 1.2500 1.2800 667,500
Weekend
Weekend
1.2300 1.3200 1.2300 1.3100 816,400
1.1700 1.2700 1.1500 1.2400 1,208,400
1.0800 1.1700 1.0500 1.1500 1,309,500
1.1300 1.1400 1.1000 1.1100 647,100
1.1400 1.1500 1.0900 1.1300 1,195,700
Weekend
Weekend
1.0700 1.1600 1.0700 1.1600 858,700
1.1600 1.1800 1.0100 1.1000 3,958,900
3 · 8-K After-hours · 16:05 ET FORM 8-K ↗
1.3000 1.3200 1.1600 1.2400 1,607,300
1.3100 1.3500 1.3000 1.3100 1,026,000
No trading
Weekend
Weekend
1.3200 1.3400 1.3000 1.3200 548,600
1.2800 1.3700 1.2800 1.3200 901,000
1.2500 1.2900 1.2200 1.2600 419,700
1.2700 1.2800 1.2300 1.2700 786,900
1.2600 1.3000 1.2300 1.2700 1,250,800
Weekend
Weekend
1.2100 1.3700 1.1900 1.2700 2,923,400
1.0800 1.1900 1.0700 1.1800 1,384,400
1.0800 1.1200 1.0400 1.1000 1,028,700
1.1300 1.1500 1.0400 1.0700 1,684,900
1.0400 1.1500 1.0400 1.1300 932,100
Weekend
Weekend
1.0900 1.1100 1.0300 1.0300 1,286,600
1.0800 1.1000 1.0100 1.0700 1,173,100
1.0100 1.1600 0.9900 1.0900 2,381,500
0.8500 0.9900 0.8400 0.9800 1,342,800
2 · 10-Q After-hours · 16:13 ET 10-Q ↗
0.9100 0.9100 0.8100 0.8400 1,799,500
Weekend
Weekend
0.8800 0.9200 0.8300 0.9000 1,016,300
0.9200 1.1400 0.8700 0.8800 5,262,400
1 · 8-K Pre-market · 07:11 ET FORM 8-K ↗
0.8000 0.8600 0.8000 0.8100 930,200
0.7900 0.8200 0.7500 0.8000 936,900
0.7800 0.8000 0.7200 0.7500 1,127,500
Weekend
Weekend
0.7700 0.8200 0.7600 0.7700 1,107,100
0.8100 0.8500 0.7600 0.7600 1,108,500
0.9100 0.9500 0.8100 0.8300 1,337,600
0.8000 0.9100 0.8000 0.8900 2,603,900
0.8300 0.8600 0.7900 0.8000 987,600
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.

20 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:14 ET Summarise
19 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
18 8-K/A FORM 8-K/A (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) Pre-market · 08:00 ET Summarise
16 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:08 ET Summarise
15 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:10 ET Summarise
14 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
13 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
12 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
11 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise
10 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:11 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:06 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:12 ET Summarise
5 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:01 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
2 10-Q 10-Q (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 · 07:11 ET Summarise