AMBAAmbarella, Inc.

$67.43-19% 1Y

Who owns AMBA

335 institutions reported holding AMBA for 2026Q2, together 82% of the company, more than the 301 a quarter earlier.

335

Institutions reporting a position · as of 2026Q2 · up from 301 the quarter before

Shares held by institutions
35.8M

Shares held by institutions · 82% of the company · long US equity positions only, as reported on Form 13F

Reported value
$3.12B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
37%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
88
Positions exited
55
Added to
109
Reduced
80
Top 10 holdersof the company
47%
Shares sold shortsettled Sep 15, 2026
5.7M
Short interestof shares outstanding
13%
Days to coverat the average daily volume
2.3
Change in the short positionsince the Aug 31, 2026 count
+31%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q233535.8M$3.12B
2026Q130136.4M$1.87B
2025Q432037.0M$2.62B
2025Q332435.5M$2.93B
2025Q229835.1M$2.32B
2025Q129535.2M$1.77B
2024Q429533.7M$2.45B
2024Q326232.9M$1.86B
2024Q226033.9M$1.83B
2024Q126733.1M$1.69B
2023Q425332.9M$2.01B
2023Q324830.8M$1.63B
2023Q225430.6M$2.56B
2023Q126830.2M$2.34B
2022Q426231.3M$2.58B
2022Q323930.1M$1.70B
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC5.9M14%$509M
BlackRock Inc.3.9M9.0%$338M
PRICE T ROWE ASSOCIATES INC /MD/2.6M6.0%$223M
STATE STREET CORP2.6M5.9%$220M
MANUFACTURERS LIFE INSURANCE COMPANY, THE1.2M2.7%$102M
Legal & General Group Plc1.1M2.6%$96M
GEODE CAPITAL MANAGEMENT LLC1.1M2.5%$94M
MENORA MIVTACHIM HOLDINGS LTD.0.8M1.7%$65M
Stephens Investment Management Group LLC0.7M1.7%$62M
DIMENSIONAL FUND ADVISORS LP0.7M1.6%$62M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20265.7M13%2.3
Aug 31, 20264.4M10%4.6
Aug 14, 20264.1M9.3%3.4
Jul 31, 20265.2M12%2.2
Jul 15, 20263.9M9.0%2.3
Jun 30, 20263.3M7.6%1.8
Jun 15, 20262.9M6.6%1.8
May 29, 20262.2M5.1%1.1
May 15, 20262.4M5.5%2.5
Apr 30, 20262.6M6.0%3.5
Apr 15, 20262.6M5.9%3.7
Mar 31, 20262.1M4.8%2.5

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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