Skip to main content
AMBA logo

AMBA · Ambarella Inc · Holdings

Track AMBA — free
$68.65 -1.65 (-2.35%) At close · Oct 2
Market Cap
$3.03B
Shares
44.14M
Volume · Oct 2 1.36M Avg daily vol (3M) 1.69M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 347
Total Value: $3,266,451,133
Total Shares: 38,071,837
Showing 1–100 of 364 holdings by value · page 1 of 4

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 347 13F filers
Top Holder
10.4%
Sep 2023 → Jun 2026 · range 10.1% – 14.1%
of institutional value
Top 5
38.5%
Sep 2023 → Jun 2026 · range 34.1% – 38.5%
of institutional value
Top 10
51.9%
Sep 2023 → Jun 2026 · range 46.4% – 53.7%
of institutional value
HHI
398
Sep 2023 → Jun 2026 · range 366 – 434
Broadly held
Showing 100 of 364
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1280263 CUSIP G037AX101 13F (30d) 6 filings 6 filers Visit website Investor relations