AMBARELLA INC (AMBA) Institutional Ownership Changes & 13F Activity
AMBARELLA INC (AMBA). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Price T Rowe Associates Inc, Millennium Management Llc, Point72 Asset Management, L.P., Manufacturers Life Insurance Company, The, and Nomura Asset Management International Inc..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Sell | -399,541 | -25.2% | 1,186,541 | $158.19M | Q2 2026 | Sep 09, 2026 |
| Allianz Asset Management Gmbh | Sell | -61,700 | -66.6% | 30,900 | $2.65M | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Buy | +61 | +0.1% | 47,979 | $4.12M | Q2 2026 | Aug 24, 2026 |
| Mercer Global Advisors Inc | Buy | +2,938 | +28.6% | 13,218 | $1.13M | Q2 2026 | Aug 19, 2026 |
| Jacobs Equity Llc | Buy | +3,275 | — | 3,275 | $281.00K | Q2 2026 | Aug 17, 2026 |
| Capstone Investment Advisors, Llc | Buy | +1,627 | +33.5% | 6,480 | $555.98K | Q2 2026 | Aug 17, 2026 |
| Centaurus Financial, Inc. | Sell | -459 | -10.4% | 3,961 | $340.00K | Q2 2026 | Aug 17, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +12 | — | 12 | $1.03K | Q2 2026 | Aug 17, 2026 |
| Price T Rowe Associates Inc | Buy | +1,646,661 | +172.9% | 2,598,976 | $222.99M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -1,471,221 | -97.3% | 41,318 | $3.55M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -403,268 | -77.4% | 117,943 | $10.12M | Q2 2026 | Aug 14, 2026 |
| Nomura Asset Management International Inc. | Buy | +358,122 | — | 358,122 | $30.73M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +269,919 | +110.1% | 515,084 | $44.19M | Q2 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Buy | +255,769 | +99.2% | 513,569 | $44.06M | Q2 2026 | Aug 14, 2026 |
| Legal & General Group Plc | Buy | +190,333 | +20.5% | 1,116,729 | $95.82M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +169,606 | +80.8% | 379,423 | $32.55M | Q2 2026 | Aug 14, 2026 |
| Jacobs Levy Equity Management, Inc | Buy | +139,980 | +38.4% | 504,409 | $43.28M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -119,826 | -24.9% | 361,932 | $31.05M | Q2 2026 | Aug 14, 2026 |
| Needham Investment Management Llc | Buy | +115,000 | +575.0% | 135,000 | $11.58M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -101,691 | -22.1% | 358,889 | $30.79M | Q2 2026 | Aug 14, 2026 |
| Samjo Management, Llc | Buy | +95,325 | +229.0% | 136,955 | $11.75M | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Sell | -90,913 | -96.8% | 3,030 | $259.97K | Q2 2026 | Aug 14, 2026 |
| Apis Capital Advisors, Llc | Buy | +88,000 | — | 88,000 | $7.55M | Q2 2026 | Aug 14, 2026 |
| Potrero Capital Research Llc | Buy | +86,595 | — | 86,595 | $7.43M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +79,161 | — | 79,161 | $6.79M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -72,139 | -46.9% | 81,602 | $7.00M | Q2 2026 | Aug 14, 2026 |
| Westerly Capital Management, Llc | Sell | -50,000 | -38.5% | 80,000 | $6.86M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +47,435 | +347.3% | 61,095 | $5.24M | Q2 2026 | Aug 14, 2026 |
| Oberweis Asset Management Inc/ | Buy | +47,069 | +15.9% | 342,254 | $29.37M | Q2 2026 | Aug 14, 2026 |
| Sora Investors Llc | Buy | +41,843 | +70.8% | 100,935 | $8.66M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about AMBA activity
Which institutional owners are buying AMBA?
Institutional owners buying AMBA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in AMBA activity?
"Buy" means an investor increased their reported position in AMBA compared to the prior reporting period. This reflects growing exposure to AMBARELLA INC (AMBA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in AMBA increasing?
Institutional interest in AMBA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.