Archimedes Tech SPAC Partners III Co ARCI

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Archimedes Tech SPAC Partners III Co. - Ordinary Share · Company · Nasdaq · Financial Services / Shell Companies

Paper trade (simulated — no real money)

Fill: USD 10.0300 · FX 1 USD = 1.277900 SGD · about SGD 12.8173 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 9.85 → 10.03 · 1.8%
10.17010.0059.840 9 10 11 12 13 Mar 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
10.0400 10.0400 10.0300 10.0300 507,427
10.0400 10.0600 10.0400 10.0400 69,800
10.0400 10.0400 10.0400 10.0400 0
10.0500 10.0500 10.0400 10.0400 400
10.0600 10.0600 10.0200 10.0400 33,100
Weekend
Weekend
10.0300 10.0400 10.0300 10.0400 10,100
10.0700 10.0700 10.0400 10.0400 245,900
10.0500 10.0700 10.0500 10.0700 360,100
10.0500 10.0500 10.0500 10.0500 0
10.0500 10.0500 10.0500 10.0500 0
Weekend
Weekend
10.0700 10.0700 10.0500 10.0500 690,000
10.0600 10.0600 10.0600 10.0600 9,200
10.0700 10.0700 10.0700 10.0700 0
10.0700 10.0800 10.0700 10.0700 20,800
10.0800 10.0800 10.0800 10.0800 0
Weekend
Weekend
10.0800 10.0800 10.0800 10.0800 10,100
10.0800 10.1000 10.0800 10.1000 48,800
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
Weekend
Weekend
10.1000 10.1000 10.1000 10.1000 0
10.0800 10.1000 10.0800 10.1000 300
10.1000 10.1000 10.0500 10.1000 297,400
10.1000 10.1000 10.1000 10.1000 100
10.1000 10.1100 10.1000 10.1000 8,200
Weekend
Weekend
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 0
Weekend
Weekend
10.1000 10.1000 10.1000 10.1000 0
10.1200 10.1200 10.1000 10.1000 7,200
10.1000 10.1000 10.1000 10.1000 0
10.1100 10.1100 10.1000 10.1000 500
No trading
Weekend
Weekend
10.1100 10.1100 10.1000 10.1000 150,000
10.1100 10.1100 10.1100 10.1100 43,800
10.1200 10.1300 10.1200 10.1200 14,100
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 100
Weekend
Weekend
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 100
Weekend
Weekend
10.1400 10.1400 10.1400 10.1400 41,900
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 0
10.1400 10.1400 10.1400 10.1400 0
10.1500 10.1500 10.1200 10.1400 2,600
Weekend
Weekend
10.1700 10.1700 10.1700 10.1700 0
13 · 10-Q After-hours · 16:37 ET QUARTERLY REPORT ↗
10.1700 10.1700 10.1700 10.1700 0
10.1800 10.1800 10.1500 10.1700 28,100
10.2000 10.2000 10.1700 10.1700 28,100
10.1200 10.1700 10.1200 10.1700 150,300
Weekend
Weekend
10.1600 10.1600 10.1600 10.1600 200
10.1600 10.1600 10.1600 10.1600 16,100
10.1500 10.1600 10.1500 10.1600 1,200
10.0900 10.1500 10.0700 10.1500 165,800
10.1400 10.1400 10.1400 10.1400 4,100
Weekend
Weekend
10.1400 10.1400 10.1400 10.1400 400
10.1000 10.1000 10.1000 10.1000 0
10.1000 10.1000 10.1000 10.1000 11,900
10.0600 10.1000 10.0600 10.1000 4,700
10.0600 10.0800 10.0200 10.0600 239,300
Weekend
Weekend
10.0800 10.0800 10.0800 10.0800 27,700
10.0800 10.0800 10.0800 10.0800 27,700
10.0700 10.0700 10.0700 10.0700 100
10.0800 10.0800 10.0600 10.0600 206,000
10.0900 10.0900 10.0700 10.0900 28,800
Weekend
Weekend
12 · 8-K After market open · 15:32 ET CURRENT REPORT ↗
10.0900 10.0900 10.0900 10.0900 200
10.0800 10.0800 10.0700 10.0700 1,600
10.0800 10.0800 10.0700 10.0800 13,500
10.0600 10.0700 10.0600 10.0700 500
10.0500 10.0600 10.0500 10.0600 550,800
Weekend
Weekend
10.0500 10.0500 10.0500 10.0500 76,900
10.0400 10.0500 10.0400 10.0500 14,400
10.0100 10.0100 10.0100 10.0100 0
10.0100 10.0100 10.0100 10.0100 300
10.0000 10.0000 10.0000 10.0000 0
Weekend
Weekend
No trading
10.0300 10.0300 10.0000 10.0000 800
10.0200 10.0400 10.0200 10.0400 31,400
10.0000 10.0100 10.0000 10.0100 53,400
9.9900 10.0000 9.9900 10.0000 67,400
Weekend
Weekend
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 3,000
9.9800 9.9800 9.9800 9.9800 0
Weekend
Weekend
No trading
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 300
9.9900 9.9900 9.9900 9.9900 0
9.9900 9.9900 9.9900 9.9900 300
Weekend
Weekend
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 0
9.9800 9.9800 9.9800 9.9800 2,100
9.9800 9.9800 9.9800 9.9800 0
Weekend
Weekend
9.9800 9.9900 9.9800 9.9800 10,600
9.9900 9.9900 9.9900 9.9900 0
9.9900 9.9900 9.9900 9.9900 1,100
9.9800 9.9800 9.9700 9.9800 100,900
9.9900 10.0000 9.9800 9.9800 36,500
Weekend
Weekend
9.9700 10.0000 9.9700 9.9900 29,500
9.9700 9.9700 9.9700 9.9700 3,200
9.9700 9.9700 9.9600 9.9700 18,100
9.9700 9.9700 9.9600 9.9600 3,400
No trading
Weekend
Weekend
9.9600 9.9600 9.9600 9.9600 37,900
9.9500 9.9600 9.9500 9.9600 12,700
9.9400 9.9500 9.9300 9.9500 21,800
9.9300 9.9300 9.9300 9.9300 4,300
9.9300 9.9500 9.9300 9.9500 6,500
Weekend
Weekend
9.9400 9.9400 9.9400 9.9400 0
11 · 10-Q After-hours · 16:31 ET QUARTERLY REPORT ↗
9.9400 9.9500 9.9400 9.9400 73,200
9.9400 9.9400 9.9400 9.9400 7,200
9.9300 9.9300 9.9300 9.9300 800
9.9300 9.9300 9.9300 9.9300 9,400
Weekend
Weekend
9.9200 9.9200 9.9200 9.9200 20,900
9.9500 9.9500 9.9200 9.9500 30,000
9.9000 9.9300 9.9000 9.9200 150,400
9.9100 9.9100 9.9100 9.9100 0
9.9100 9.9100 9.9100 9.9100 200
Weekend
Weekend
10 · 8-K After-hours · 16:00 ET CURRENT REPORT ↗
9.9200 9.9200 9.9200 9.9200 100
9.9100 9.9100 9.9100 9.9100 200
10.0600 10.0600 9.9100 9.9100 700
9.9300 9.9400 9.9000 9.9000 175,000
9.9000 9.9000 9.9000 9.9000 0
Weekend
Weekend
9.8900 9.9000 9.8900 9.9000 50,100
9.8900 9.9000 9.8900 9.8900 226,100
9.8900 9.8900 9.8900 9.8900 49,600
9.8800 9.9000 9.8800 9.8900 92,800
9.8900 9.8900 9.8900 9.8900 0
Weekend
Weekend
9.8900 9.8900 9.8800 9.8900 2,600
9.8900 9.8900 9.8800 9.8800 1,200
9.8900 9.8900 9.8900 9.8900 25,800
9.8700 9.8900 9.8700 9.8900 59,000
9.8800 9.8800 9.8700 9.8800 30,800
Weekend
Weekend
9.8900 9.8900 9.8900 9.8900 0
9.8900 9.8900 9.8900 9.8900 0
9.8900 9.9000 9.8900 9.8900 92,000
9.8800 9.8900 9.8600 9.8900 39,100
9.9000 9.9000 9.9000 9.9000 0
Weekend
Weekend
No trading
9.9000 9.9000 9.9000 9.9000 2,300
9.8500 9.8600 9.8500 9.8600 19,300
9.8400 9.8500 9.8400 9.8500 19,700
9.8600 9.8600 9.8300 9.8400 42,900
Weekend
Weekend
9.8400 9.8500 9.8400 9.8500 103,300
9.9000 9.9000 9.8500 9.8500 31,400
9.9000 9.9000 9.8800 9.8900 4,900
9.9000 9.9000 9.8600 9.8600 6,400
9.9400 9.9400 9.8500 9.8600 4,500
Weekend
Weekend
9.9000 9.9000 9.8500 9.8500 418,400
9.9000 9.9000 9.9000 9.9000 200
9.9000 9.9000 9.9000 9.9000 200
9.8800 9.9000 9.8800 9.9000 4,200
9.9000 9.9000 9.8500 9.8500 4,900
Weekend
Weekend
No trading
No trading
No trading
No trading
9 · 8-K Pre-market · 08:00 ET CURRENT REPORT ↗
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
8 · 8-K After-hours · 16:16 ET FORM 8-K ↗
No trading
No trading
No trading
No trading
7 · 8-K Next filing day · accepted 26 Jan, 18:16 ET FORM 8-K ↗
No trading
6 · 424B4 Next filing day · accepted 23 Jan, 21:03 ET FORM 424B4 ↗ 5 · 424B4 Next filing day · accepted 23 Jan, 21:03 ET FORM 424B4 ↗
Weekend
Weekend
No trading
4 · S-1MEF After-hours · 21:37 ET FORM S-1MEF ↗
No trading
No trading
3 · S-1/A After market open · 11:37 ET FORM S-1/A ↗
No trading
No trading
Weekend
Weekend
No trading
No trading
2 · S-1/A Next filing day · accepted 14 Jan, 17:53 ET FORM S-1/A ↗
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
1 · S-1 After-hours · 16:40 ET FORM S-1 ↗
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading
No trading
No trading
No trading
No trading
Weekend
Weekend
No trading

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.

13 10-Q QUARTERLY REPORT (opens SEC filing in a new tab) After-hours · 16:37 ET Summarise
12 8-K CURRENT REPORT (opens SEC filing in a new tab) After market open · 15:32 ET Summarise
11 10-Q QUARTERLY REPORT (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
10 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:00 ET Summarise
9 8-K CURRENT REPORT (opens SEC filing in a new tab) Pre-market · 08:00 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:16 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) Next filing day · accepted 26 Jan, 18:16 ET Summarise
6 424B4 FORM 424B4 (opens SEC filing in a new tab) Next filing day · accepted 23 Jan, 21:03 ET Summarise
5 424B4 FORM 424B4 (opens SEC filing in a new tab) Next filing day · accepted 23 Jan, 21:03 ET Summarise
4 S-1MEF FORM S-1MEF (opens SEC filing in a new tab) After-hours · 21:37 ET Summarise
3 S-1/A FORM S-1/A (opens SEC filing in a new tab) After market open · 11:37 ET Summarise
2 S-1/A FORM S-1/A (opens SEC filing in a new tab) Next filing day · accepted 14 Jan, 17:53 ET Summarise
1 S-1 FORM S-1 (opens SEC filing in a new tab) After-hours · 16:40 ET Summarise