AMBA Ambarella, Inc.
Ambarella, Inc. (AMBA) Institutional Ownership
What the institutions did with AMBA last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 3.9M | 11.0% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.7M | 10.3% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.6M | 7.2% |
| STATE STREET CORP | 2.6M | 7.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | 5.2% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1.2M | 3.3% |
| Legal & General Group Plc | 1.1M | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | 3.1% |
| MENORA MIVTACHIM HOLDINGS LTD. | 757.6K | 2.1% |
| Stephens Investment Management Group LLC | 721.7K | 2.0% |
| DIMENSIONAL FUND ADVISORS LP | 718.2K | 2.0% |
| Connor, Clark & Lunn Investment Management Ltd. | 685.7K | 1.9% |
| EXCHANGE TRADED CONCEPTS, LLC | 630.7K | 1.8% |
| MORGAN STANLEY | 611.6K | 1.7% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 562.0K | 1.6% |
| D. E. Shaw & Co., Inc. | 515.1K | 1.4% |
| T. Rowe Price Investment Management, Inc. | 513.6K | 1.4% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 504.4K | 1.4% |
| AQR CAPITAL MANAGEMENT LLC | 495.6K | 1.4% |
| Nuveen, LLC | 439.0K | 1.2% |
| PINNACLE ASSOCIATES LTD | 408.8K | 1.1% |
| NORTHERN TRUST CORP | 403.7K | 1.1% |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 394.2K | 1.1% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 379.6K | 1.1% |
| GOLDMAN SACHS GROUP INC | 379.4K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 952.3K | 2.6M | +1.6M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.5M | 41.3K | -1.5M |
| CITADEL ADVISORS LLC | Sold Out | 931.9K | 0 | -931.9K |
| MENORA MIVTACHIM HOLDINGS LTD. | New | 0 | 757.6K | +757.6K |
| STATE STREET CORP | Increased | 2.0M | 2.6M | +586.3K |
| FIFTHDELTA Ltd | Sold Out | 546.5K | 0 | -546.5K |
| Point72 Asset Management, L.P. | Reduced | 521.2K | 117.9K | -403.3K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | 1.6M | 1.2M | -399.5K |
| JPMORGAN CHASE & CO | Reduced | 473.8K | 111.3K | -362.5K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | 0 | 358.1K | +358.1K |
| Woodline Partners LP | Sold Out | 349.5K | 0 | -349.5K |
| Balyasny Asset Management L.P. | Sold Out | 289.8K | 0 | -289.8K |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Sold Out | 276.1K | 0 | -276.1K |
| D. E. Shaw & Co., Inc. | Increased | 245.2K | 515.1K | +269.9K |
| Handelsbanken Fonder AB | Reduced | 396.7K | 134.4K | -262.3K |
| T. Rowe Price Investment Management, Inc. | Increased | 257.8K | 513.6K | +255.8K |
| MARSHALL WACE, LLP | Sold Out | 249.5K | 0 | -249.5K |
| Stephens Investment Management Group LLC | Increased | 475.1K | 721.7K | +246.6K |
| Walleye Capital LLC | Reduced | 210.9K | 5.1K | -205.9K |
| Legal & General Group Plc | Increased | 926.4K | 1.1M | +190.3K |
| UBS Group AG | Reduced | 314.0K | 143.1K | -171.0K |
| GOLDMAN SACHS GROUP INC | Increased | 209.8K | 379.4K | +169.6K |
| Robinhood Asset Management, LLC | New | 0 | 159.1K | +159.1K |
| BlackRock, Inc. | Increased | 3.8M | 3.9M | +155.4K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Increased | 364.4K | 504.4K | +140.0K |
| Freemont Management S.A. | Sold Out | 135.8K | 0 | -135.8K |
| BANK OF AMERICA CORP /DE/ | Reduced | 481.8K | 361.9K | -119.8K |
| Quadrature Capital Ltd | New | 0 | 117.7K | +117.7K |
| NEEDHAM INVESTMENT MANAGEMENT LLC | Increased | 20.0K | 135.0K | +115.0K |
| Shannon River Fund Management LLC | Sold Out | 114.9K | 0 | -114.9K |
| MORGAN STANLEY | Reduced | 724.7K | 611.6K | -113.1K |
| ALGERT GLOBAL LLC | Reduced | 409.2K | 297.6K | -111.6K |
| Squarepoint Ops LLC | Reduced | 460.6K | 358.9K | -101.7K |
| EMERALD ADVISERS, LLC | New | 0 | 96.5K | +96.5K |
| Samjo Management, LLC | Increased | 41.6K | 137.0K | +95.3K |
| Engineers Gate Manager LP | Reduced | 93.9K | 3.0K | -90.9K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 199.4K | 110.3K | -89.1K |
| Apis Capital Advisors, LLC | New | 0 | 88.0K | +88.0K |
| Potrero Capital Research LLC | New | 0 | 86.6K | +86.6K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 600.5K | 685.7K | +85.2K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 83.1K | 1.9K | -81.2K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 638.6K | 718.2K | +79.6K |
| LORD, ABBETT & CO. LLC | Sold Out | 76.6K | 0 | -76.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 153.7K | 81.6K | -72.1K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.0M | 1.1M | +68.9K |
| EMERALD MUTUAL FUND ADVISERS TRUST | New | 0 | 65.7K | +65.7K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 87.2K | 150.3K | +63.1K |
| Allianz Asset Management GmbH | Reduced | 92.6K | 30.9K | -61.7K |
| EXCHANGE TRADED CONCEPTS, LLC | Increased | 571.6K | 630.7K | +59.1K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.8M | 1.9M | +58.9K |
| DEUTSCHE BANK AG\ | Increased | 95.5K | 150.2K | +54.7K |
| WESTERLY CAPITAL MANAGEMENT, LLC | Reduced | 130.0K | 80.0K | -50.0K |
| Trexquant Investment LP | Sold Out | 49.3K | 0 | -49.3K |
| Nuveen, LLC | Reduced | 487.8K | 439.0K | -48.8K |
| Qube Research & Technologies Ltd | Increased | 13.7K | 61.1K | +47.4K |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 295.2K | 342.3K | +47.1K |
| LPL Financial LLC | Increased | 7.0K | 53.3K | +46.3K |
| Susquehanna Portfolio Strategies, LLC | Sold Out | 42.2K | 0 | -42.2K |
| ZACKS INVESTMENT MANAGEMENT | New | 0 | 41.9K | +41.9K |
| SORA INVESTORS LLC | Increased | 59.1K | 100.9K | +41.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.