Heartflow, Inc HTFL

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Heartflow, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 24.1200 · FX 1 USD = 1.289800 SGD · about SGD 31.1100 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 29.99 → 24.12 · -19.6%
39.91030.20020.490 2,3,4 5 6 7 8,9 10 11,12 13,14 15,16 17 Aug 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
24.9800 25.9800 24.0400 24.1200 886,900
24.1100 24.6600 23.8900 24.6100 1,066,800
25.1800 25.6100 23.8700 24.2300 1,114,100
24.6600 25.7150 24.5610 25.4400 896,000
24.6600 25.1600 24.0700 24.5600 1,105,700
Weekend
Weekend
25.3800 25.6500 24.5000 24.8800 929,500
27.1300 28.0000 25.8460 25.9700 899,400
25.7200 28.1050 25.3600 27.2500 1,143,100
26.2500 26.6400 25.0650 25.4900 1,986,700
26.8200 27.3600 26.0400 26.1600 1,075,500
Weekend
Weekend
27.7500 28.3500 26.2850 26.7200 924,000
26.1900 27.7800 26.0900 27.7200 1,061,000
27.3100 27.6500 25.8000 26.1500 1,280,700
27.4500 27.8800 26.6600 27.2900 1,377,600
27.8000 29.3600 27.0950 27.1100 1,579,600
Weekend
Weekend
No trading
30.9300 30.9800 27.6300 27.9650 1,892,300
29.3500 30.7700 28.8900 30.7100 2,022,200
34.3000 35.6800 28.6030 29.3400 4,818,900
35.4500 36.0630 34.0000 34.8500 1,703,800
Weekend
Weekend
34.6400 36.4580 34.2500 35.6500 12,523,600
34.8300 35.8500 34.0100 34.9800 1,169,800
34.6700 35.7900 34.0700 34.9100 1,687,800
33.3500 34.7880 32.9700 34.4800 1,428,100
33.5900 34.8900 33.3500 33.8400 1,651,900
Weekend
Weekend
No trading
17 · 8-K After-hours · 16:10 ET 8-K ↗
33.4700 33.9220 32.6900 33.6400 1,805,300
32.3500 33.8200 32.0450 32.8400 1,483,300
32.8000 34.1500 31.8400 32.0500 1,789,600
33.3100 34.3100 32.4700 32.8200 1,120,400
Weekend
Weekend
30.7700 33.6700 30.0000 33.2400 1,889,900
29.5000 31.3300 28.9500 30.6700 1,357,300
28.5000 30.4200 28.2800 29.4300 1,668,800
28.7600 29.6600 27.9800 28.6700 652,900
28.7900 29.2800 28.3100 28.4500 667,900
Weekend
Weekend
28.8400 29.2900 28.0600 28.1000 730,500
29.1500 30.5500 28.5000 28.8100 1,469,200
29.1500 29.4000 27.6800 28.8500 1,310,900
31.0000 31.3350 29.5000 29.5500 727,000
30.9300 32.4100 30.6100 31.0000 1,245,900
Weekend
Weekend
31.9100 32.4600 30.8500 30.9800 1,731,100
29.2900 32.6000 28.9700 31.7300 1,343,900
28.9200 30.9000 28.9200 29.2800 1,042,100
29.5400 30.8900 28.3400 28.4000 894,500
No trading
Weekend
Weekend
29.3700 30.1000 29.1500 29.4900 839,000
27.3300 29.2600 26.6800 29.2000 970,700
26.6400 27.6100 25.8800 27.3800 1,091,800
25.2500 26.6600 24.7700 26.6000 2,284,800
28.3400 29.1500 25.2000 25.6450 1,277,100
Weekend
Weekend
29.0500 30.2900 27.5600 28.3150 2,009,100
16 · 10-Q After-hours · 16:31 ET 10-Q ↗ 15 · 8-K After-hours · 16:03 ET 8-K ↗
31.2900 32.4200 30.4900 32.2400 1,437,000
29.7200 31.7600 29.0150 31.2000 943,900
29.1600 30.0850 28.7900 29.4200 1,211,700
29.1200 30.2500 28.8250 29.3900 844,200
Weekend
Weekend
30.0400 30.4400 28.7150 29.5100 541,800
30.2900 30.5600 29.7250 29.9800 526,300
30.2100 30.5600 29.4300 30.2900 587,800
29.1000 30.1000 28.1900 29.9600 1,226,700
28.9900 29.4000 28.2400 28.9500 1,135,400
Weekend
Weekend
29.6100 30.2400 28.0900 28.6700 1,288,300
29.6000 30.2800 28.9250 29.7600 1,494,300
30.3900 30.5100 28.8400 29.5300 1,613,200
14 · DEFA14A Pre-market · 09:05 ET DEFA14A ↗ 13 · DEF 14A Pre-market · 09:00 ET DEF 14A ↗
31.6400 32.1700 30.2200 30.5500 951,900
30.4700 32.1100 30.4700 31.7300 777,200
Weekend
Weekend
31.4000 31.6900 30.1060 30.4400 699,500
32.8500 33.0000 31.2100 31.2400 713,800
32.1000 33.3800 32.0550 32.9300 1,356,200
31.5900 33.0000 31.3050 31.8500 1,834,300
31.0900 32.3900 30.8550 31.3800 979,800
Weekend
Weekend
30.5000 31.7100 30.1300 31.3400 1,095,600
29.4500 30.2500 29.1400 29.8000 1,070,000
29.2000 30.2800 28.9370 29.2300 1,090,500
27.8400 29.3300 27.6400 29.0500 1,283,600
26.7200 27.4600 25.7200 27.4300 1,013,700
Weekend
Weekend
26.7200 27.0750 26.2500 26.9500 743,800
26.9900 27.7500 26.3000 27.0800 1,048,900
28.6700 28.9900 26.8350 27.0800 1,071,000
25.7800 26.9900 24.9700 26.8700 1,140,700
25.1500 26.7400 24.9800 25.9600 1,129,500
Weekend
Weekend
No trading
24.0300 25.0200 23.1900 24.8300 1,818,100
24.6700 25.3200 23.8400 24.5000 1,946,700
24.7700 25.1050 23.8500 24.3300 1,602,500
24.9600 24.9600 23.8600 23.8700 1,534,000
Weekend
Weekend
25.5000 25.5000 24.3100 24.6900 1,487,100
27.4100 27.9900 25.6700 25.8800 1,353,000
28.4600 28.9800 27.3900 27.7500 1,197,700
26.2400 28.0000 25.7800 27.9700 2,008,900
26.5500 27.6600 26.0000 26.8200 2,235,600
Weekend
Weekend
25.9100 26.4800 24.9700 26.0200 2,734,800
25.0000 28.5510 24.7200 25.8900 3,931,400
12 · 10-K After-hours · 16:17 ET 10-K ↗ 11 · 8-K After-hours · 16:02 ET 8-K ↗
21.6600 25.7650 21.6600 25.4700 3,038,100
21.2800 22.5800 21.0150 22.5200 1,601,800
20.5600 21.6700 20.4800 20.9800 1,256,900
Weekend
Weekend
20.7900 21.7600 20.4100 20.4900 932,600
21.7800 22.4600 20.6400 20.7900 1,420,200
22.5600 23.0550 21.6380 22.2100 805,400
22.6550 23.1300 22.0100 22.5900 1,243,600
23.0900 23.4600 21.6600 23.1800 1,628,800
Weekend
Weekend
24.0000 24.4500 22.6000 22.9800 839,200
24.1900 25.0500 23.2700 24.8600 1,281,700
23.9100 24.5430 23.6000 23.9300 851,600
23.3400 23.9850 22.7100 23.8700 1,203,400
22.5300 24.0900 22.2700 24.0500 765,800
Weekend
Weekend
23.3900 24.0850 22.7300 23.1600 949,900
23.2000 24.2600 23.0200 24.0900 613,300
22.8100 23.0800 22.3900 23.0000 927,500
22.4100 23.4300 21.1000 22.7700 1,522,500
24.8700 25.0500 22.0500 22.1550 1,622,300
Weekend
Weekend
23.5500 25.4200 23.4800 25.1000 1,180,500
23.5300 24.0900 23.1350 23.9900 972,700
22.2700 24.6000 22.0000 23.6800 1,803,700
20.5000 22.4600 20.3000 22.2700 2,990,300
No trading
Weekend
Weekend
22.7000 22.7000 20.1300 20.6600 2,786,400
26.8100 27.0100 22.4600 22.4900 2,530,600
27.0100 27.2700 25.3600 26.9500 1,842,800
29.3300 29.3300 26.7300 27.3000 2,297,600
27.7500 29.8600 27.1500 29.2900 3,161,300
Weekend
Weekend
25.9900 28.4100 25.6000 27.7400 2,927,100
27.3200 27.7800 25.7900 25.9900 3,064,800
28.5700 30.1900 27.6250 28.1400 6,403,200
28.7200 29.6100 27.6300 28.3900 1,699,700
29.5900 29.8600 27.4500 28.7800 1,591,300
Weekend
Weekend
30.8000 31.3200 28.7200 29.8700 1,176,000
31.3100 31.5000 30.3300 30.8200 942,700
32.5700 32.7500 30.5600 31.1000 1,153,800
30.9600 31.3550 30.3300 31.2100 830,700
31.7500 32.1500 30.9100 31.0400 542,000
Weekend
Weekend
33.0100 33.7200 31.9150 32.1600 509,600
33.6600 35.9800 33.2400 33.5000 642,900
33.6800 35.3300 32.8000 33.5500 1,082,000
36.1500 36.9900 34.1400 34.1900 952,200
No trading
Weekend
Weekend
35.7100 37.2400 35.4400 37.1600 826,900
35.0000 36.5400 34.6200 36.1200 1,383,000
31.4600 35.0900 31.0900 34.9800 1,064,700
31.9800 32.0800 30.1900 32.0700 1,042,000
33.1400 33.2200 31.6500 31.7900 709,500
10 · 8-K Pre-market · 08:30 ET 8-K ↗
Weekend
Weekend
33.5000 34.0550 31.6800 33.1400 683,000
32.0600 33.8300 31.8700 33.4700 551,500
31.1400 33.7200 30.3700 32.5800 815,100
30.7200 31.4600 30.1400 31.1700 856,500
29.2400 30.9700 29.2380 30.4100 438,600
Weekend
Weekend
29.3500 29.5350 28.3100 28.9700 872,100
No trading
30.2200 30.4600 28.8600 29.1500 1,022,400
30.2600 30.8600 29.6200 30.2100 809,300
30.0100 30.5950 29.4300 30.3100 412,800
Weekend
Weekend
30.4400 30.6200 29.2900 29.8300 648,800
No trading
30.2000 31.2300 29.8400 30.4400 385,300
30.7300 30.9800 28.9950 30.5000 1,131,700
30.3100 31.9450 29.7750 31.2500 786,400
Weekend
Weekend
28.7900 30.8900 28.1600 30.5100 3,902,600
27.4600 29.8200 27.4450 28.6500 1,189,000
26.3200 27.2400 25.9400 26.2900 556,300
25.7400 26.9000 25.4000 26.4700 626,500
26.5700 27.2400 25.3800 25.6300 449,900
Weekend
Weekend
29.0000 29.0000 26.4400 26.4800 523,700
28.5700 29.4700 27.8200 28.3500 280,600
26.9000 28.5300 26.5700 28.0700 382,100
27.6800 28.9200 26.6300 26.8700 596,400
27.9300 29.7600 27.7900 27.9500 586,600
Weekend
Weekend
28.9900 29.5350 27.3350 27.5300 404,100
28.1100 29.0660 27.5800 28.9350 377,100
29.7900 30.3600 27.8000 28.0000 844,400
30.1200 31.2400 28.1300 29.6200 571,300
32.0100 32.0100 29.2800 30.1500 604,300
Weekend
Weekend
31.9900 33.1000 31.7880 32.2500 231,400
No trading
32.7400 33.0600 31.0600 31.4300 389,800
30.2000 32.5500 29.9900 32.4850 509,700
31.2600 32.2100 30.1400 30.8500 873,800
Weekend
Weekend
27.9600 31.0300 26.7600 30.8500 819,200
27.8600 29.7200 27.2500 27.6700 821,200
27.4400 28.2700 26.6350 27.2300 651,900
26.1000 28.4400 26.1000 27.3100 903,200
27.6300 27.8500 25.7500 26.4000 1,139,800
Weekend
Weekend
30.0300 30.5900 27.5480 27.9800 839,000
34.6500 34.6500 29.8500 30.9400 1,865,800
9 · 10-Q After-hours · 17:20 ET 10-Q ↗ 8 · 8-K After-hours · 16:03 ET 8-K ↗
34.7400 35.8800 33.7900 35.7400 594,500
34.0000 35.5700 32.8900 34.1700 334,200
33.5100 34.9750 32.9600 33.8300 319,200
Weekend
Weekend
34.5200 36.2700 32.2560 32.5600 232,600
35.3000 35.3000 33.7600 34.4900 230,900
33.7900 34.8800 32.9000 34.7100 213,900
33.9200 35.0900 33.5200 33.8900 250,600
37.2000 37.9800 33.8900 34.0450 209,800
Weekend
Weekend
36.5200 37.2700 36.2700 37.1600 137,800
37.2000 38.4860 36.5700 36.5700 132,800
38.3000 39.7400 37.0550 37.5200 151,800
39.0000 40.5800 37.2700 38.3000 256,900
38.6300 40.2400 37.0600 38.3400 331,200
Weekend
Weekend
40.4800 41.2230 37.8500 37.8700 377,700
39.3700 40.7210 38.7500 39.9100 284,900
36.7900 39.4500 34.7570 39.3050 514,400
34.9200 36.9600 34.7600 36.6400 260,800
34.1700 35.3200 33.8500 35.0500 248,700
Weekend
Weekend
33.3900 33.9500 32.8500 33.7700 115,900
34.2900 35.0000 33.1550 33.4700 122,600
35.3000 35.3000 33.8000 34.4100 140,600
33.4500 35.4800 32.0900 34.6200 324,600
33.4700 35.2600 33.0000 33.2200 317,700
Weekend
Weekend
32.9400 34.4300 32.7000 33.4700 396,700
35.7600 37.2900 32.7400 32.8900 409,500
35.2500 37.0900 34.8150 35.7600 383,400
37.1700 37.8000 34.6000 34.9900 261,300
38.0900 39.2400 37.1100 37.2800 235,700
Weekend
Weekend
36.2000 38.5150 36.0400 37.6400 665,400
36.3200 36.7420 34.5000 36.1900 596,800
33.2200 36.6500 33.2200 35.9200 623,600
34.1500 34.8700 33.3400 33.6600 477,600
33.8100 34.5700 32.3700 34.5000 409,400
Weekend
Weekend
33.8900 35.1400 32.5300 33.0600 383,900
33.9700 34.6900 33.0000 33.9200 347,100
36.3500 36.5300 34.4450 34.4900 190,700
32.0000 36.2500 31.0100 35.8700 532,000
32.6200 33.5200 31.1500 31.4300 257,700
Weekend
Weekend
32.4000 33.7940 31.9400 32.8800 1,486,200
7 · 10-Q Pre-market · 08:31 ET 10-Q ↗
31.7800 33.9650 31.7800 32.4800 266,500
31.0500 32.6900 30.5500 31.7600 355,000
32.7800 33.6750 31.0600 31.2200 260,100
33.8400 34.6800 32.5600 32.8900 241,500
Weekend
Weekend
33.4300 34.5250 32.5830 33.3800 224,600
33.5600 34.7500 33.0200 33.1700 175,100
34.5200 35.6400 33.1900 33.4800 326,400
6 · 8-K Pre-market · 07:30 ET 8-K ↗
33.9600 36.4950 33.3300 34.7000 333,200
32.9000 34.8000 31.3500 34.5000 482,400
Weekend
Weekend
34.4400 35.9000 30.7800 31.0700 442,100
31.2300 34.9800 31.0300 34.0850 447,900
31.2800 32.1300 29.4000 31.2800 323,900
30.5100 33.2400 30.4900 31.1600 263,200
No trading
Weekend
Weekend
32.0100 32.4400 30.4100 31.5000 217,600
35.3700 35.9900 31.4600 32.1400 380,600
31.3800 36.2500 31.0500 34.7600 604,200
29.8400 31.4000 29.7480 31.3800 522,600
5 · 8-K After-hours · 16:03 ET 8-K ↗
29.3600 30.9800 29.3600 29.8400 312,400
Weekend
Weekend
29.1700 29.8300 28.7290 29.1650 252,000
29.5200 29.7400 28.8700 28.9300 251,600
30.5100 31.1250 28.7000 29.3100 241,100
29.7800 31.3240 28.6300 30.6700 349,700
31.1700 32.0000 29.1100 29.9700 539,300
Weekend
Weekend
34.0000 34.8000 30.0100 31.1700 699,800
33.7900 36.6800 32.8500 33.6900 2,255,900
30.2100 33.5000 29.5800 33.2400 1,126,000
29.9100 30.3100 28.4080 29.9000 626,000
4 · 8-K After-hours · 17:08 ET 8-K ↗
28.7500 31.7000 28.2700 29.9900 1,134,900
Weekend
Weekend
3 · 424B4 After-hours · 16:05 ET 424B4 ↗
No trading
No trading
No trading
2 · S-1/A Pre-market · 07:42 ET S-1/A ↗
No trading
No trading
Weekend
Weekend
No trading
1 · S-1/A Pre-market · 07:32 ET S-1/A ↗
No trading
No trading
No trading
No trading
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.

17 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
16 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
14 DEFA14A DEFA14A (opens SEC filing in a new tab) Pre-market · 09:05 ET Summarise
13 DEF 14A DEF 14A (opens SEC filing in a new tab) Pre-market · 09:00 ET Summarise
12 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:17 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:30 ET Summarise
9 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 17:20 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
7 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 08:31 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:30 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:03 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
3 424B4 424B4 (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
2 S-1/A S-1/A (opens SEC filing in a new tab) Pre-market · 07:42 ET Summarise
1 S-1/A S-1/A (opens SEC filing in a new tab) Pre-market · 07:32 ET Summarise