Ambarella Inc. 13F holders
341 funds reported a position in Ambarella Inc. in their 13F for the quarter ended 30 June 2026, together 35.9 million shares worth $3.13 billion. Against the quarter before, 82 opened a position, 119 added, 87 trimmed and 49 sold out; together they sold a net 591,148 shares. The largest holders: BlackRock, Inc., Vanguard Portfolio Management LLC and Price T Rowe Associates Inc.
Funds holding341+34 on Q1 2026
Shares they held35.9Mworth $3.13 billion
Net sold on the quarter591,148 sharesabout $51.6 million at the funds' values
Funds buying to selling201 to 136opened or added, to cut or sold
Opened 82Added 119Held 50Trimmed 87Sold out 49
What each fund did in AMBA against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in AMBA in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 54 reported a position in Ambarella Inc.: 7 opened one, 17 added, 13 trimmed and 11 sold out, a net 111,532 shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 6 reported a position in Ambarella Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 1.1 million shares worth $94.2 million, 0.0% of its reported book. Sold out: Citadel Advisors. In the quarter, 2 funds added or opened a position and 5 trimmed or sold out; together they sold a net 2.8 million shares, about $242.0 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 1,098,120 | $94.2 million | 0.0% | +68,891 | added | 30 June 2026 | 13F |
| FMR LLC | 316,013 | $27.1 million | 0.0% | +13,676 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 117,943 | $10.1 million | 0.0% | -403,268 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 110,300 | $9.5 million | 0.0% | -89,100 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 41,318 | $3.5 million | 0.0% | -1,471,221 | trimmed | 30 June 2026 | 13F |
| Two Sigma Investments | 5,470 | $469,326 | 0.0% | -7,298 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 0 | $0 | 0.0% | -931,862 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 3,944,592 | 10.98% | $338.4 million | 0.01% | +155,377 | 13F |
| Vanguard Portfolio Management LLC | 3,688,405 | 10.27% | $316.5 million | 0.01% | -28,458 | 13F |
| Price T Rowe Associates Inc. | 2,598,976 | 7.24% | $223.0 million | 0.02% | +1,646,661 | 13F |
| State Street Corp. | 2,562,733 | 7.14% | $219.9 million | 0.01% | +586,269 | 13F |
| Vanguard Capital Management LLC | 1,873,539 | 5.22% | $160.7 million | 0.00% | +58,936 | 13F |
| Manufacturers Life Insurance Company, the | 1,186,541 | 3.30% | $158.2 million | 0.12% | -399,541 | 13F |
| Legal & General Group Plc | 1,116,729 | 3.11% | $95.8 million | 0.02% | +190,333 | 13F |
| Geode Capital Management, LLC | 1,098,120 | 3.06% | $94.2 million | 0.01% | +68,891 | 13F |
| Menora Mivtachim Holdings Ltd | 757,571 | 2.11% | $65.0 million | 0.25% | new | 13F |
| Stephens Investment Management Group LLC | 721,711 | 2.01% | $61.9 million | 0.66% | +246,570 | 13F |
| Dimensional Fund Advisors LP | 718,154 | 2.00% | $61.6 million | 0.01% | +79,567 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 685,726 | 1.91% | $58.8 million | 0.11% | +85,220 | 13F |
| Exchange Traded Concepts, LLC | 630,697 | 1.76% | $54.1 million | 0.27% | +59,117 | 13F |
| Morgan Stanley | 611,551 | 1.70% | $52.5 million | 0.00% | -113,104 | 13F |
| Mirae Asset Global ETFS Holdings Ltd. | 562,013 | 1.57% | $47.1 million | 0.06% | +20,112 | 13F |
| D. E. Shaw & Co., Inc. | 515,084 | 1.43% | $44.2 million | 0.03% | +269,919 | 13F |
| T. Rowe Price Investment Management, Inc. | 513,569 | 1.43% | $44.1 million | 0.03% | +255,769 | 13F |
| Jacobs Levy Equity Management, Inc. | 504,409 | 1.40% | $43.3 million | 0.16% | +139,980 | 13F |
| AQR Capital Management LLC | 495,583 | 1.38% | $42.5 million | 0.01% | -232 | 13F |
| Nuveen, LLC | 439,002 | 1.22% | $37.7 million | 0.01% | -48,818 | 13F |
| Pinnacle Associates Ltd | 408,846 | 1.14% | $35.1 million | 0.38% | -21,403 | 13F |
| Northern Trust Corp. | 403,692 | 1.12% | $34.6 million | 0.00% | +28,912 | 13F |
| BNP Paribas Asset Management Holding S.A. | 394,182 | 1.10% | $33.8 million | 0.03% | +9,386 | 13F |
| Charles Schwab Investment Management Inc. | 379,551 | 1.06% | $32.6 million | 0.00% | +16,260 | 13F |
| Goldman Sachs Group Inc. | 379,423 | 1.06% | $32.6 million | 0.00% | +169,606 | 13F |
| Bank of America Corp. | 361,932 | 1.01% | $31.1 million | 0.00% | -119,826 | 13F |
| Squarepoint Ops LLC | 358,889 | 1.00% | $30.8 million | 0.06% | -101,691 | 13F |
| Nomura Asset Management International Inc. | 358,122 | 1.00% | $30.7 million | 0.05% | new | 13F |
| Oberweis Asset Management Inc. | 342,254 | 0.95% | $29.4 million | 0.61% | +47,069 | 13F |
| FMR LLC | 316,013 | 0.88% | $27.1 million | 0.00% | +13,676 | 13F |
| Vanguard Fiduciary Trust Co. | 298,076 | 0.83% | $25.6 million | 0.01% | +13,787 | 13F |
| Algert Global LLC | 297,624 | 0.83% | $25.5 million | 0.30% | -111,596 | 13F |
| Raymond James Financial Inc. | 187,266 | 0.52% | $16.1 million | 0.00% | +970 | 13F |
| Robinhood Asset Management, LLC | 159,123 | 0.44% | $13.7 million | 0.73% | new | 13F |
| Panagora Asset Management Inc. | 150,261 | 0.42% | $12.9 million | 0.04% | +63,094 | 13F |
| Deutsche Bank AG | 150,163 | 0.42% | $12.9 million | 0.00% | +54,703 | 13F |
| UBS Group AG | 143,071 | 0.40% | $12.3 million | 0.00% | -170,975 | 13F |
| Samjo Management, LLC | 136,955 | 0.38% | $11.8 million | 4.01% | +95,325 | 13F |
| Needham Investment Management LLC | 135,000 | 0.38% | $11.6 million | 0.35% | +115,000 | 13F |
| Handelsbanken Fonder AB | 134,397 | 0.37% | $11.5 million | 0.03% | -262,293 | 13F |
| SWS Partners | 132,050 | 0.37% | $11.3 million | 2.45% | +40,613 | 13F |
| Mairs & Power Inc. | 126,353 | 0.35% | $10.8 million | 0.10% | +8,772 | 13F |
| Bank of New York Mellon Corp | 122,202 | 0.34% | $10.5 million | 0.00% | +10,010 | 13F |
| Mitsubishi UFJ Asset Management Co., Ltd. | 121,951 | 0.34% | $10.5 million | 0.01% | +40,042 | 13F |
| First Trust Advisors LP | 118,029 | 0.33% | $10.1 million | 0.01% | -14,909 | 13F |
| Point72 Asset Management, L.P. | 117,943 | 0.33% | $10.1 million | 0.02% | -403,268 | 13F |
| Quadrature Capital Ltd | 117,737 | 0.33% | $10.1 million | 0.09% | new | 13F |
| Hillsdale Investment Management Inc. | 116,280 | 0.32% | $10.0 million | 0.23% | +9,280 | 13F |
| Renaissance Technologies LLC | 110,300 | 0.31% | $9.5 million | 0.01% | -89,100 | 13F |
| Robeco Schweiz AG | 106,242 | 0.30% | $9.1 million | 0.15% | +2,088 | 13F |
The 50 largest of the 341 funds that reported a position in AMBA in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on AMBA
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 264,700 | $22.7 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 136,000 | $11.7 million | 30 June 2026 | 13F |
| Point72 Asset Management | Calls | 3,800 | $326,040 | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 2,100 | $180,180 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 14 August 2026 | 13G | T. Rowe Price Associates, Inc. and 1 other | 2.6 million | 5.9% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 August 2026 | 13G | State Street Corporation and 1 other | 2.6 million | 5.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 31 July 2026 | 13G | Vanguard Capital Management and 1 other | 2.2 million | 5.0% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 3.8 million | 8.6% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 January 2026 | 13G/A | The Vanguard Group and 1 other | 5.5 million | 12.7% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 29 September 2026 | 8,413 | $68.68 | SEC |
| 24 September 2026 | 7,575 | $67.62 | SEC |
| 18 September 2026 | 165,000 | $66.91 | SEC |
| 4 September 2026 | 230 | $63.38 | SEC |
| 3 September 2026 | 1,794 | $67.14 | SEC |
| 24 August 2026 | 100 | $73.73 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.