Stocks › AMBA
AMBARELLA INC
AMBA·Nasdaq·
United States·USD
United States·USD$67.94
-0.32 (-0.47%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
AMBA
AMBARELLA INC · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
AMBAS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of AMBA by members of U.S. Congress · 6 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Donna ShalalaHouse · D · FL |
AMBAAMBARELLA INC · Stock |
Purchase $1,001 - $15,000 |
Apr 27, 2020 | May 15, 2019 | Filing ↗ |
| Donna ShalalaHouse · D · FL |
AMBAAMBARELLA INC · Stock |
Sale $1,001 - $15,000 |
Apr 27, 2020 | Jun 24, 2019 | Filing ↗ |
| Donna ShalalaHouse · D · FL |
AMBAAMBARELLA INC · Stock |
Purchase $1,001 - $15,000 |
Apr 27, 2020 | Apr 16, 2019 | Filing ↗ |
 Kenny MarchantHouse · R · TX |
AMBAAMBARELLA INC · Stock |
Sale $1,001 - $15,000 |
Nov 13, 2015 | Oct 24, 2015 | Filing ↗ |
 Barbara J. ComstockHouse · R · VA |
AMBAAMBARELLA INC · Stock |
Sale $1,001 - $15,000 |
Jun 19, 2015 | Jun 19, 2015 | Filing ↗ |
| Kenny MarchantHouse · R · TX |
AMBAAMBARELLA INC · Stock |
Purchase $1,001 - $15,000 |
Jul 3, 2014 | Jun 24, 2014 | Filing ↗ |
Whale Activity
Position changes in AMBA reported for 2026-06-30 by 10 tracked institutional filers
- Increased3
- New0
- Held0
- Decreased5
- Closed1
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 3.9M | $338.4M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7M | $316.5M | decreased |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $160.7M | increased |
| D. E. Shaw & Co., Inc. | 515.1K | $44.2M | increased |
| Samjo Management, LLC | 137.0K | $11.8M | — |
| Point72 Asset Management, L.P. | 117.9K | $10.1M | decreased |
| RENAISSANCE TECHNOLOGIES LLC | 110.3K | $9.5M | decreased |
| MILLENNIUM MANAGEMENT LLC | 41.3K | $3.5M | decreased |
| TWO SIGMA INVESTMENTS, LP | 5,470 | $469K | decreased |
| Citadel Advisors LLC | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by AMBA insiders, by quarter · Form 4
Recent Insider Transactions
1,614 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| PAISLEY CHRISTOPHER BDirector · Director | Sale | −250 | $70.76 | $18K | Sep 25, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Sale | −1,896 | $67.28 | $128K | Sep 18, 2026 | Form 4 ↗ |
| Wang Feng-MingCEO · Director | Sale | −6,086 | $64.83 | $395K | Sep 17, 2026 | Form 4 ↗ |
| Ju Chi-HongSenior VP, Systems & GM | Sale | −2,009 | $64.83 | $130K | Sep 17, 2026 | Form 4 ↗ |
| Lee Chan WChief Operations Officer | Sale | −2,893 | $64.83 | $188K | Sep 17, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Sale | −3,126 | $64.83 | $203K | Sep 17, 2026 | Form 4 ↗ |
| Chen Yun-LungVP, Business Dev. & Marketing | Sale | −5,958 | $78.66 | $469K | Jul 9, 2026 | Form 4 ↗ |
| Ju Chi-HongSenior VP, Systems & GM | Sale | −10.0K | $88.84 | $888K | Jul 1, 2026 | Form 4 ↗ |
| Wang Feng-MingCEO · Director | Sale | −16.3K | $90.08 | $1.5M | Jul 1, 2026 | Form 4 ↗ |
| PAISLEY CHRISTOPHER BDirector | Sale | −250 | $62.01 | $16K | Jun 26, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Sale | −1,847 | $66.98 | $124K | Jun 17, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Sale | −3,186 | $67.87 | $216K | Jun 17, 2026 | Form 4 ↗ |
| Lee Chan WChief Operations Officer | Sale | −2,951 | $67.87 | $200K | Jun 17, 2026 | Form 4 ↗ |
| Ju Chi-HongSenior VP, Systems & GM | Sale | −2,017 | $67.87 | $137K | Jun 17, 2026 | Form 4 ↗ |
| Wang Feng-MingCEO · Director | Gift | −10.0K | $0.00 | $0 | Jun 17, 2026 | Form 4 ↗ |
| Wang Feng-MingCEO · Director | Sale | −6,204 | $67.87 | $421K | Jun 17, 2026 | Form 4 ↗ |
| Chen Yun-LungVP, Business Development and | Sale | −9,856 | $67.06 | $661K | Jun 12, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Sale | −400 | $96.00 | $38K | May 26, 2026 | Form 4 ↗ |
| Young John AlexanderCFO | Option exercise | +400 | $55.80 | $22K | May 26, 2026 | Form 4 ↗ |
| Wang Feng-MingCEO · Director | Sale | −9,150 | $92.05 | $842K | May 26, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding AMBA · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.3M | $113.4M | 0.00% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 956.8K | $82.1M | 0.04% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.0M | $73.1M | 0.04% | May 31, 2026 |
| VANGUARD EXPLORER FUND | 785.3K | $67.5M | 0.31% | Jul 31, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 551.4K | $47.3M | 0.10% | Jun 30, 2026 |
| ROBO Global Robotics and Automation Index ETF EXCHANGE TRADED CONCEPTS TRUST | 483.9K | $41.6M | 2.09% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 476.4K | $40.9M | 0.04% | Jun 30, 2026 |
| Small Cap Core Fund John Hancock Investment Trust | 474.2K | $40.8M | 2.10% | Jul 31, 2026 |
| VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS | 441.0K | $37.8M | 0.31% | Jun 30, 2026 |
| Global X Artificial Intelligence & Technology ETF GLOBAL X FUNDS | 369.6K | $26.7M | 0.25% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list AMBA's shares (CUSIP G037AX101), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming AMBARELLA INC as client
No lobbying filings found naming AMBARELLA INC as the client.
Government Contracts
Federal awards to AMBARELLA INC · USAspending
No federal contract awards found for AMBARELLA INC.
U.S. Patents
Recent USPTO applications naming AMBARELLA INC
No USPTO patent applications found for AMBARELLA INC.
Annual Financials
From AMBA's 10-K filings · XBRL
No annual XBRL figures on record for AMBA. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in AMBA's price history.
About AMBARELLA INC
From SEC EDGAR company records
Industry (SIC 3674)Semiconductors & Related Devices
SectorTechnology
HeadquartersSANTA CLARA, CA
SEC CIK0001280263 ↗