13FPulse
AM

AMBA Ambarella, Inc.

2026Q2 · CUSIP G037AX101 · Sector: Semiconductors

Piling in

Net holder growth ranks near the top of the market

Funds that own it
331
Institutions that reported holding it to the SEC
Net increase in holders
+29
Last quarter 302 → now 331
How unusual is that
Top 20%
Stronger buying than 89% of US stocks
What the filings say, in one paragraph

331 funds held AMBA at the end of 2026Q2, up 29 from the quarter before. That is stronger buying than 88.9% of US stocks — among the most piled-into names this quarter. On the business itself, revenue over the last 12 months was $405M(YoY +28.1%), return on equity is -11.5%. AMBA has had 15 buying rushes in its history. It sits in the Semiconductors sector.

How many funds owned it, quarter by quarter

Bars = net change in institutional holders, positive (green) or negative (red). Line = total institutional holders.

2013Q3: holders=92 2013Q4: holders=112 2014Q1: holders=126 2014Q2: holders=136 2014Q3: holders=156 2014Q4: holders=178 2015Q1: holders=201 2015Q2: holders=233 2015Q3: holders=226 2015Q4: holders=232 2016Q1: holders=198 2016Q2: holders=202 2016Q3: holders=233 2016Q4: holders=232 2017Q1: holders=230 2017Q2: holders=199 2017Q3: holders=200 2017Q4: holders=214 2018Q1: holders=217 2018Q2: holders=204 2018Q3: holders=195 2018Q4: holders=187 2019Q1: holders=198 2019Q2: holders=195 2019Q3: holders=221 2019Q4: holders=219 2020Q1: holders=214 2020Q2: holders=214 2020Q3: holders=216 2020Q4: holders=253 2021Q1: holders=261 2021Q2: holders=254 2021Q3: holders=275 2021Q4: holders=321 2022Q1: holders=290 2022Q2: holders=263 2022Q3: holders=241 2022Q4: holders=259 2023Q1: holders=270 2023Q2: holders=255 2023Q3: holders=253 2023Q4: holders=259 2024Q1: holders=268 2024Q2: holders=261 2024Q3: holders=264 2024Q4: holders=296 2025Q1: holders=296 2025Q2: holders=301 2025Q3: holders=328 2025Q4: holders=324 2026Q1: holders=302 2026Q2: holders=331 -46 -23 +0 +23 +46 82215348 13Q315Q116Q318Q119Q321Q122Q324Q125Q326Q2 Net change in holders (bars) Total funds holding (line)

What happened after each past buying rush 15 times in its history

Quarter of the rush How unusual then Price, next 3 months Price, next 6 months
2026Q2 Top 20%
2025Q3 Top 20%
2024Q4 Top 20%
2023Q1 Top 20%
2021Q4 Top 20%
2021Q3 Top 10%
2020Q4 Top 20%
2019Q3 Top 10%

These are the raw price moves, not how much it beat the market by. Compare them against the market over the same months — in a strong bull market almost everything is up.

Show all the numbers (large funds, value held, options…) ▾
Of them, large funds
156
Change in large funds
+15
Total value they hold
$3.1B
Funds buying for the first time
87
Funds that sold out entirely
58
Price change that quarter
Funds holding puts (bearish)
10
Funds holding calls (bullish)
12

These are for people who want to dig. Skip them if they do not mean anything to you — the three numbers above are enough.

8,697 institutions have filed for this quarter. 13F permits late filing and a small number arrive in the weeks after the deadline, so the holder counts and changes below may tick up.

Fundamentals

PE (TTM)
EPS (TTM)
$-1.61
EPS YoY
Revenue (TTM)
$0.4B
Revenue YoY
+28.1%
Net margin
-17.2%
ROE
-11.5%
Debt ratio
23.8%
FCF (TTM)
$18M
Dividend (TTM)
No dividend
Quarterly Revenue & EPS
2022-07-31: EPS -0.62 2022-10-31: EPS -0.51 2023-01-31: EPS -0.28 2023-04-30: EPS -0.91 2023-07-31: EPS -0.79 2023-10-31: EPS -1.04 2024-01-31: EPS -1.51 2024-04-30: EPS -0.93 2024-07-31: EPS -0.85 2024-10-31: EPS -0.58 2025-01-31: EPS -0.48 2025-04-30: EPS -0.58 2025-07-31: EPS -0.47 2025-10-31: EPS -0.35 2026-01-31: EPS -0.38 2026-04-30: EPS -0.41 0M 54M 108M $M -1.66 -0.83 0.00 2016201720182019202020212022202320242025202604/26 Revenue EPS

Quarterly figures, revenue up to 10 years back; EPS split-adjusted, early quarters hidden when not calibrable

Quarterly free cash flow
-30M6M42M 20162017201820192020202120222023202420252026
Latest quarter $-30M (2026-04-30)

FCF = operating cash flow − capex, computed from SEC XBRL; banks/insurers have no standard cash-flow structure and are hidden

As of 2026-04-30 · SEC filings (XBRL)

Email me the next update

2026 Q3 holdings are due 2026-11-16. We will email you when the refreshed lists are live.