Compare · AMBQ vs ARM
AMBQ vs ARM
Side-by-side comparison of Ambiq Micro Inc. (AMBQ) and Arm Holdings plc (ARM): market cap, price performance, sector, and recent activity on the wire.
Summary
- Both AMBQ and ARM operate in Semiconductors (Technology), so they compete in similar markets.
- ARM is the larger of the two at $364.90B, about 229.2x AMBQ ($1.59B).
- Over the past year, AMBQ is up 104.1% and ARM is up 153.1% - ARM leads by 49.0 points.
- ARM has been more active in the news (28 items in the past 4 weeks vs 8 for AMBQ).
- ARM has more recent analyst coverage (25 ratings vs 5 for AMBQ).
PerformanceAMBQ+104.11%ARM+114.85%
2025-07-30+0.00%2026-06-08
- Company
- Ambiq Micro Inc.
- Arm Holdings plc
- Price
- $79.28+5.45%
- $350.80+2.26%
- Market cap
- $1.59B
- $364.90B
- 1M return
- +108.56%
- +64.51%
- 1Y return
- +104.11%
- +153.07%
- Industry
- Semiconductors
- Semiconductors
- Exchange
- NYSE
- NASDAQ
- IPO
- 2025
- 2023
- News (4w)
- 8
- 28
- Recent ratings
- 5
- 25
Latest AMBQ
- Chief Financial Officer Winzeler Jeffrey G exercised 5,952 shares at a strike of $16.80, increasing direct ownership by 6% to 106,299 units (SEC Form 4)
- Director Chen Timothy sold $5,632,525 worth of shares (70,592 units at $79.79) (SEC Form 4)
- Amendment: Director Chen Timothy converted options into 70,592 shares (SEC Form 4)
- Amendment: SEC Form 3 filed by new insider Chen Timothy
- Chief Financial Officer Winzeler Jeffrey G exercised 31,952 shares at a strike of $16.80 and sold $1,817,412 worth of shares (26,000 units at $69.90), increasing direct ownership by 6% to 100,347 units (SEC Form 4)
- Chief Technology Officer Hanson Scott Mclean exercised 18,300 shares at a strike of $8.12 and sold $706,252 worth of shares (10,200 units at $69.24), increasing direct ownership by 4% to 211,226 units (SEC Form 4)
- President and COO Chen Sean Chihhsiang exercised 55,685 shares at a strike of $5.88 and sold $3,947,281 worth of shares (55,685 units at $70.89) (SEC Form 4)
- Chief Executive Officer Esaka Fumihide exercised 120,000 shares at a strike of $8.66 and sold $4,201,122 worth of shares (60,000 units at $70.02), increasing direct ownership by 15% to 451,189 units (SEC Form 4)
- SEC Form 144 filed by Ambiq Micro Inc.
- SEC Form S-8 filed by Ambiq Micro Inc.
Latest ARM
- Chief Accounting Officer Bartels Laura Kathleen sold $4,439,866 worth of Ordinary Shares (11,306 units at $392.70), decreasing direct ownership by 48% to 12,135 units (SEC Form 4)
- Chief Commercial Officer Abbey William sold $2,644,252 worth of Ordinary Shares (6,566 units at $402.72), decreasing direct ownership by 24% to 20,563 units (SEC Form 4)
- Chief Commercial Officer Abbey William sold $1,444,002 worth of Ordinary Shares (4,200 units at $343.81), decreasing direct ownership by 13% to 27,129 units (SEC Form 4)
- Chief Commercial Officer Abbey William sold $703,386 worth of Ordinary Shares (2,300 units at $305.82), decreasing direct ownership by 7% to 31,329 units (SEC Form 4)
- SEC Form SD filed by Arm Holdings plc
- SEC Form IRANNOTICE filed by Arm Holdings plc
- SEC Form 20-F filed by Arm Holdings plc
- Chief Commercial Officer Abbey William sold $1,336,125 worth of Ordinary Shares (4,655 units at $287.03), decreasing direct ownership by 12% to 33,629 units (SEC Form 4)
- Chief People Officer Eaton Charlotte Claire sold $2,263,520 worth of Ordinary Shares (7,805 units at $290.01), closing all direct ownership in the company (SEC Form 4)
- Chief Legal Officer Collins Spencer sold $8,802,315 worth of Ordinary Shares (40,941 units at $215.00), closing all direct ownership in the company (SEC Form 4)