Alphatec Holdings, Inc ATEC

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Alphatec Holdings, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 8.2600 · FX 1 USD = 1.288650 SGD · about SGD 10.6442 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 11.19 → 8.26 · -26.2%
22.68014.8356.990 1,2 3,4 5 6 7,8 9 10,11 12,13 14 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
8.2100 8.3800 8.0600 8.2600 1,457,100
8.2700 8.2700 8.0700 8.2100 1,335,800
8.2700 8.3300 8.0100 8.0600 2,089,900
8.1300 8.4500 8.0500 8.3000 1,980,600
8.5100 8.5500 8.2600 8.2700 2,089,100
Weekend
Weekend
9.0900 9.0900 8.5200 8.5400 2,245,800
9.1700 9.6100 9.1500 9.2700 2,111,700
8.9300 9.2000 8.8600 9.0400 1,327,500
9.5300 9.5700 8.8700 8.9700 2,889,100
9.6600 9.9400 9.6100 9.7400 1,794,300
Weekend
Weekend
9.5100 9.6000 9.3300 9.5800 1,513,700
9.4200 9.5300 9.1800 9.5100 1,740,900
9.1400 9.3600 8.8600 9.2100 3,319,000
9.3800 9.5300 9.2800 9.3800 2,777,900
8.9300 9.4600 8.8400 9.3300 2,727,300
Weekend
Weekend
No trading
9.0700 9.1300 8.7600 8.9200 2,843,600
8.7800 9.1700 8.6900 8.8600 3,360,500
9.3900 9.4800 8.5000 8.6500 4,094,000
9.3500 9.5700 9.0200 9.5000 4,158,000
Weekend
Weekend
8.8300 9.3400 8.8300 9.3000 6,166,800
8.7000 9.0100 8.6300 8.8300 2,275,900
8.5000 9.0900 8.1000 8.7000 6,780,300
8.5700 8.7000 8.3700 8.5000 2,080,600
8.7600 9.2200 8.4800 8.5500 4,092,800
Weekend
Weekend
No trading
8.3500 8.8300 8.2800 8.8100 4,526,700
8.4300 8.6900 8.2200 8.2400 5,025,700
8.3600 8.5500 8.2500 8.4400 2,026,100
8.2800 8.4600 8.1100 8.2900 3,830,500
Weekend
Weekend
8.0500 8.3100 7.9500 8.2800 1,766,600
14 · 8-K After-hours · 16:13 ET 8-K ↗
8.0100 8.3100 7.8600 8.1300 2,644,300
8.2600 8.3600 8.0700 8.1300 1,562,900
7.9500 8.3900 7.9300 8.2600 2,864,300
8.0400 8.1800 7.8800 7.9100 1,736,300
Weekend
Weekend
7.9700 8.3600 7.8600 8.0000 3,119,400
7.7900 8.0500 7.7700 7.9200 2,134,500
7.5000 7.7700 7.3900 7.6800 2,426,300
7.4100 7.5300 7.2700 7.4800 2,077,600
7.8300 7.9700 7.4100 7.4800 2,861,900
Weekend
Weekend
7.8800 8.0100 7.6900 7.7500 2,612,700
7.7100 7.9700 7.6100 7.8900 2,661,200
7.9500 8.0700 7.6800 7.8300 2,509,300
8.3500 8.3700 8.0000 8.0600 2,793,800
No trading
Weekend
Weekend
8.2500 8.4200 8.1600 8.2700 1,727,000
8.1200 8.3400 8.0400 8.2300 2,797,300
8.1700 8.3300 7.9800 8.2400 2,018,600
8.1100 8.2900 7.9100 8.2200 2,518,700
7.7000 8.2400 7.7000 8.0900 3,473,200
Weekend
Weekend
7.5900 7.8000 7.4700 7.6600 2,883,300
7.5800 7.7500 7.4800 7.5700 2,917,100
7.6000 7.8000 7.4500 7.5500 4,239,100
7.4100 7.8800 7.3000 7.7400 5,348,900
7.4900 7.4900 6.8200 6.9900 5,109,500
Weekend
Weekend
7.9800 8.0000 7.5000 7.5200 5,095,600
7.1200 7.9300 7.0300 7.7500 12,495,000
8.0100 8.0900 6.8500 6.9900 21,603,700
13 · 10-Q After-hours · 16:56 ET 10-Q ↗ 12 · 8-K After-hours · 16:28 ET 8-K ↗
10.2800 10.5400 9.9400 10.2300 7,642,000
10.4300 10.8100 10.2200 10.3300 3,298,600
Weekend
Weekend
9.8700 10.5000 9.8500 10.4300 2,953,800
9.2400 9.8000 9.1100 9.7600 3,184,900
11 · DEFA14A After-hours · 16:29 ET DEFA14A ↗ 10 · DEF 14A After-hours · 16:26 ET DEF 14A ↗
9.3400 9.4700 9.1600 9.3000 3,268,700
10.3800 10.5600 9.1500 9.3500 4,916,000
10.7400 10.9300 10.2300 10.3600 2,298,800
Weekend
Weekend
10.2100 10.9600 10.1500 10.9000 4,389,400
10.6000 10.7200 10.0500 10.2100 1,989,400
10.5300 10.8300 10.5100 10.6200 2,113,200
11.5500 11.6000 10.3800 10.4800 2,996,600
11.0400 11.5700 10.9400 11.5500 2,452,000
Weekend
Weekend
11.1700 11.4300 10.9800 11.1000 2,560,600
11.4400 11.6000 10.8100 10.8200 1,923,800
11.6100 11.7800 11.3100 11.4200 1,726,800
11.3500 11.7200 11.3500 11.5200 2,039,300
10.7900 11.3000 10.7900 11.2500 2,614,500
Weekend
Weekend
11.0600 11.2200 10.8800 10.9000 1,627,100
11.4800 11.7700 11.0100 11.0700 2,369,900
11.6800 11.7800 11.4200 11.6600 2,355,800
10.9100 11.3000 10.8000 11.0300 1,707,800
10.7900 11.2600 10.6600 10.9700 1,282,700
Weekend
Weekend
No trading
10.9700 11.3700 10.6100 10.8300 2,108,300
11.0300 11.5100 10.7400 11.2600 4,070,000
11.1600 11.2200 10.7800 10.8800 2,912,300
10.9300 11.3500 10.8000 11.0000 2,278,800
Weekend
Weekend
11.4600 11.5200 10.8700 10.9300 1,950,700
11.5600 11.8400 11.4600 11.5200 2,174,000
11.8000 12.0000 11.4500 11.4900 1,593,900
12.1100 12.2100 11.6400 11.7500 2,038,800
12.7300 12.7700 12.1300 12.1500 2,265,500
Weekend
Weekend
12.8400 12.8400 12.2800 12.3700 2,395,100
12.3500 12.7800 12.3500 12.7200 1,838,300
13.0000 13.0800 12.5100 12.5600 2,617,200
12.6300 13.0700 12.6300 13.0500 2,390,300
12.3400 12.6300 12.1900 12.6000 1,664,600
Weekend
Weekend
12.5600 12.7100 12.2000 12.2800 3,172,100
12.4100 12.5800 12.2500 12.5000 2,228,300
12.5000 12.9300 12.1200 12.6600 3,504,700
12.8700 12.8700 12.3000 12.5100 2,228,500
11.9900 12.8900 11.9200 12.8700 4,573,200
Weekend
Weekend
12.2600 12.3900 12.0400 12.2300 1,851,300
12.8600 12.8900 12.2400 12.5700 2,731,000
12.8400 13.2100 12.7400 13.0000 1,985,800
9 · 8-K After-hours · 16:14 ET 8-K ↗
13.2500 13.2700 12.7000 13.0200 1,607,700
13.3000 13.6700 13.1400 13.4700 1,974,800
Weekend
Weekend
13.8000 13.9000 13.5000 13.6200 2,121,700
14.2100 14.4500 13.5700 14.0100 1,988,600
13.2600 14.2300 13.1300 14.0400 6,024,900
8 · 10-K After-hours · 16:58 ET 10-K ↗ 7 · 8-K After-hours · 16:19 ET 8-K ↗
13.1800 13.9800 13.0000 13.9300 6,120,000
12.9100 13.3600 12.7700 13.1600 2,478,500
Weekend
Weekend
13.6300 13.6300 12.8000 13.0100 2,575,100
13.5300 13.7300 13.2400 13.4800 1,454,600
13.7700 13.9100 13.5100 13.5400 2,982,200
13.3600 13.8200 13.2600 13.5000 1,464,900
No trading
Weekend
Weekend
13.2200 13.5600 13.2200 13.3600 1,832,700
13.5500 13.7300 13.0100 13.1000 2,497,200
13.8000 14.3100 13.2800 13.4700 2,673,700
13.6200 14.6500 13.5400 13.9000 3,353,400
13.8400 13.8400 13.3300 13.5100 2,437,300
Weekend
Weekend
13.5000 14.0500 13.3500 13.8200 2,253,800
14.0600 14.2100 13.4300 13.5000 3,270,700
14.6200 14.6200 13.7200 14.0600 2,847,200
14.4600 14.9100 14.3000 14.6700 3,273,500
14.5400 14.9800 14.4300 14.4900 3,492,100
Weekend
Weekend
15.0000 15.2200 14.5400 14.8300 3,355,800
15.2600 15.2600 14.3500 14.8500 4,159,700
15.2700 15.5500 14.9700 15.2600 2,073,400
15.4300 15.5400 14.9300 15.2600 2,812,000
15.5800 16.1000 15.5800 15.6800 2,319,100
Weekend
Weekend
15.8000 16.2300 15.5500 15.6200 2,183,900
16.9100 17.1200 15.7800 15.8000 4,530,300
17.1100 17.3500 16.5700 17.0300 3,376,000
17.2500 17.4800 16.8500 17.1500 3,329,400
No trading
Weekend
Weekend
17.4000 17.9700 17.3900 17.7400 3,729,100
16.1500 17.5000 16.0000 17.4600 7,942,800
16.4200 16.5300 15.4200 15.9500 4,561,400
17.6000 17.8400 16.1500 16.4500 8,671,400
21.4700 21.5600 17.4300 17.5900 13,648,100
6 · 8-K Pre-market · 09:10 ET 8-K ↗
Weekend
Weekend
22.6500 22.8900 21.9900 22.6500 2,453,500
22.2500 23.2900 22.1300 22.6800 4,248,500
22.0200 22.2200 21.7300 21.9700 1,415,200
21.0700 21.8600 21.0700 21.7900 2,402,900
20.5300 21.3700 20.4800 21.2000 1,685,400
Weekend
Weekend
21.0000 21.2000 20.2900 20.7600 1,658,000
No trading
20.9200 21.3000 20.8900 21.0400 1,498,800
20.9400 21.1600 20.8400 20.8600 1,189,400
21.0000 21.2000 20.9000 20.9800 1,149,100
Weekend
Weekend
20.8300 21.0400 20.7200 20.9700 1,026,900
No trading
20.9300 20.9400 20.5500 20.7700 956,300
20.5000 21.0300 20.4800 21.0000 2,258,100
20.0000 20.9500 19.6900 20.7000 3,791,100
Weekend
Weekend
19.8700 20.3400 19.7800 20.0100 2,093,700
19.8000 20.2100 19.6600 19.8700 1,203,100
19.6600 20.0700 19.4700 19.5700 1,551,200
19.8900 19.9900 19.3300 19.7600 2,529,600
19.8600 20.1100 19.5100 19.7100 2,675,400
Weekend
Weekend
19.9800 20.4400 19.9300 19.9600 1,836,500
21.2000 21.4200 19.7700 19.9100 2,576,100
20.7200 21.0100 20.5400 20.9000 4,026,100
21.0000 21.1300 20.6200 20.6700 1,429,200
21.3500 21.4200 20.9600 20.9600 2,285,800
Weekend
Weekend
21.4700 21.6500 21.2800 21.4500 1,848,600
21.2900 21.5700 21.1400 21.2800 1,282,300
21.1100 21.4600 20.8700 21.2300 2,097,800
21.9900 22.0600 21.1400 21.1700 2,915,800
22.3800 22.4400 21.8200 21.9600 1,853,000
Weekend
Weekend
22.5800 22.6000 22.3000 22.5500 769,400
No trading
21.9600 22.6600 21.6800 22.5900 2,478,700
20.7400 22.0000 20.6400 21.8300 2,887,000
20.3500 20.8000 20.3100 20.6300 2,199,200
Weekend
Weekend
19.5300 20.7400 19.0900 20.3100 2,306,800
19.9700 20.0000 19.4300 19.6100 1,267,600
19.9000 20.2000 19.6000 19.6200 1,610,400
19.8200 20.2000 19.4100 19.9300 2,009,400
19.5200 19.9400 19.4200 19.8700 1,680,800
Weekend
Weekend
19.8700 20.0600 19.5100 19.7400 2,603,600
20.7500 20.8200 20.0000 20.2000 2,140,900
20.7500 21.1600 20.6700 20.7500 3,683,700
20.4100 21.0400 20.4000 20.7200 2,304,400
19.7500 20.6500 19.6300 20.2400 2,604,700
Weekend
Weekend
19.6200 20.1700 19.4900 19.8000 2,364,400
5 · 8-K Pre-market · 09:10 ET 8-K ↗
19.6400 20.0000 19.0700 19.5100 2,643,500
19.4400 19.9800 19.4300 19.7200 2,888,100
19.0200 19.5700 19.0200 19.4200 2,473,900
18.8500 19.4700 17.8800 19.2900 4,551,000
Weekend
Weekend
20.0300 20.1500 18.6900 18.9900 11,584,900
4 · 10-Q After-hours · 16:57 ET 10-Q ↗ 3 · 8-K After-hours · 16:23 ET 8-K ↗
16.5000 16.7300 16.2100 16.3300 4,115,500
16.5900 17.1500 16.4600 16.4900 2,235,100
16.7200 17.1100 16.6200 16.6500 2,434,800
16.1200 16.7500 16.0200 16.5800 2,304,700
Weekend
Weekend
16.2000 16.2800 16.0100 16.1100 1,830,500
15.6600 15.9300 15.4500 15.8900 1,228,600
15.5900 15.9100 15.3800 15.6700 2,095,700
15.5700 15.8400 15.2000 15.5000 2,529,300
14.9800 15.5200 14.8200 15.5000 1,954,000
Weekend
Weekend
14.2600 14.9900 14.0500 14.8900 2,410,600
14.1300 14.5000 13.9200 14.2600 2,450,900
13.7700 14.3400 13.5500 13.9900 2,399,300
13.2100 13.9800 13.1900 13.8100 2,115,500
13.1600 13.5200 13.1400 13.2400 1,797,000
Weekend
Weekend
13.7700 13.8700 13.1300 13.1400 1,522,000
14.0000 14.0500 13.7100 13.7600 1,482,700
13.4500 14.0500 13.3100 14.0200 2,316,000
13.6200 13.9800 13.3700 13.4500 1,809,900
14.0000 14.0600 13.5400 13.6000 1,877,500
Weekend
Weekend
13.7600 14.0700 13.7400 13.9600 1,475,100
13.9700 14.3300 13.5700 13.7600 1,986,600
14.3900 14.3900 13.7300 13.9700 2,594,400
14.7000 14.8000 14.4000 14.5400 3,026,600
15.0100 15.1100 14.6500 14.7500 1,241,500
Weekend
Weekend
15.4700 15.5000 14.9500 15.0200 1,339,200
15.1400 15.4800 14.9300 15.3900 1,299,100
15.5800 15.6700 15.1500 15.2100 1,268,300
15.6000 15.6500 15.3500 15.4900 1,036,300
15.5000 15.6900 15.2900 15.6000 1,373,100
Weekend
Weekend
15.3900 15.5700 15.1700 15.5400 2,659,000
14.7000 15.2500 14.6800 15.2200 1,611,600
15.0400 15.1300 14.6500 14.7000 1,789,500
15.0000 15.1700 14.7400 15.0300 1,324,300
15.3200 15.4400 15.0300 15.0500 1,231,800
Weekend
Weekend
15.4600 15.5200 15.1300 15.2600 1,736,700
15.3900 15.6900 15.2600 15.6300 2,416,400
15.7500 15.8900 15.2100 15.3500 2,030,300
16.3400 16.3800 15.7700 15.8000 2,583,400
16.5900 16.5900 16.2000 16.3400 1,342,800
Weekend
Weekend
16.5600 16.6500 16.3200 16.4000 1,427,200
15.9000 16.7000 15.8000 16.5500 3,213,100
15.5300 15.9300 15.5200 15.9000 2,084,600
15.5400 15.9800 15.5400 15.6800 2,801,400
No trading
Weekend
Weekend
16.1400 16.1400 15.7700 15.9000 1,651,200
16.1600 16.1600 15.1000 16.0300 3,599,200
16.0000 16.3200 15.8700 16.1800 1,739,900
15.9000 16.1600 15.7700 16.0500 1,954,500
15.6400 16.0300 15.5500 15.8400 1,537,000
Weekend
Weekend
16.1300 16.4700 15.8400 16.1400 2,490,700
15.8500 16.0700 15.7800 15.9300 1,884,100
15.7900 15.9300 15.7200 15.8900 1,574,800
15.9100 15.9800 15.7200 15.8000 1,878,000
15.7500 15.9100 15.6600 15.8600 1,601,900
Weekend
Weekend
15.6700 15.8900 15.5000 15.7000 1,804,600
15.6000 15.6700 15.4000 15.5700 1,666,000
15.8700 16.0200 15.4300 15.8000 2,391,500
15.4900 15.8400 15.3900 15.7200 2,607,400
14.9800 15.4400 14.7500 15.3200 2,244,700
Weekend
Weekend
14.9800 15.3200 14.9100 14.9700 1,745,300
15.3900 15.4600 14.7400 14.9000 4,027,200
15.3100 15.4500 14.9300 15.2000 4,365,100
14.9500 15.3400 14.5300 15.3400 5,879,000
13.9800 14.9000 13.8100 14.8700 7,318,500
Weekend
Weekend
11.9800 13.8900 11.6600 13.7700 13,007,900
2 · 10-Q After-hours · 16:51 ET 10-Q ↗ 1 · 8-K After-hours · 16:19 ET 8-K ↗
10.6600 10.8500 10.1100 10.5800 3,497,400
10.9600 11.0900 10.6200 10.7300 1,196,900
11.3100 11.3100 10.8600 10.8800 1,387,900
10.9000 11.2500 10.7600 11.1900 1,871,400
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.

14 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
13 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:56 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:28 ET Summarise
11 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:29 ET Summarise
10 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:26 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:14 ET Summarise
8 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:58 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:10 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:10 ET Summarise
4 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:57 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:51 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:19 ET Summarise