Ambiq Micro, Inc. 13F holders
184 funds reported a position in Ambiq Micro, Inc. in their 13F for the quarter ended 30 June 2026, together 17.5 million shares worth $1.51 billion. Against the quarter before, 94 opened a position, 50 added, 31 trimmed and 10 sold out; together they bought a net 6.3 million shares. The largest holders: BlackRock, Inc., T. Rowe Price Investment Management, Inc. and D. E. Shaw & Co., Inc.
Funds holding184+87 on Q1 2026
Shares they held17.5Mworth $1.51 billion
Net bought on the quarter6.3M sharesabout $538.3 million at the funds' values
Funds buying to selling144 to 41opened or added, to cut or sold
Opened 94Added 50Held 9Trimmed 31Sold out 10
What each fund did in AMBQ against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in AMBQ in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 27 reported a position in Ambiq Micro, Inc.: 8 opened one, 9 added, 7 trimmed and 3 sold out, a net 103,265 shares bought.
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, 9 reported a position in Ambiq Micro, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Atreides Management, 877,123 shares worth $77.4 million, 0.7% of its reported book. New this quarter: Citadel Advisors, Point72 Asset Management. In the quarter, 8 funds added or opened a position and 1 trimmed or sold out; together they bought a net 1.1 million shares, about $99.9 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 |
|---|---|---|---|---|---|---|---|
| Atreides Management | 877,123 | $77.4 million | 0.7% | +14,948 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 651,786 | $57.6 million | 0.0% | +614,992 | added | 30 June 2026 | 13F |
| Geode Capital Management | 339,327 | $30.0 million | 0.0% | +41,779 | added | 30 June 2026 | 13F |
| Millennium Management | 289,206 | $25.5 million | 0.0% | +111,650 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 214,756 | $19.0 million | 0.0% | +172,156 | added | 30 June 2026 | 13F |
| Citadel Advisors | 122,425 | $10.8 million | 0.0% | +122,425 | new | 30 June 2026 | 13F |
| Point72 Asset Management | 77,165 | $6.8 million | 0.0% | +77,165 | new | 30 June 2026 | 13F |
| FMR LLC | 44,634 | $3.9 million | 0.0% | +43,871 | added | 30 June 2026 | 13F |
| Alyeska | 10,329 | $912,051 | 0.0% | -67,976 | trimmed | 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. | 1,380,623 | 7.89% | $121.9 million | 0.00% | +367,462 | 13F |
| T. Rowe Price Investment Management, Inc. | 1,006,359 | 5.75% | $88.9 million | 0.06% | -261,192 | 13F |
| D. E. Shaw & Co., Inc. | 983,916 | 5.63% | $86.9 million | 0.06% | new | 13F |
| Atreides Management, LP | 877,123 | 5.01% | $77.4 million | 0.69% | +14,948 | 13F |
| State Street Corp. | 861,979 | 4.93% | $76.1 million | 0.00% | +601,752 | 13F |
| Vanguard Capital Management LLC | 768,539 | 4.39% | $67.9 million | 0.00% | +61,135 | 13F |
| Two Sigma Investments, LP | 651,786 | 3.73% | $57.6 million | 0.04% | +614,992 | 13F |
| First Eagle Investment Management, LLC | 488,788 | 2.79% | $43.2 million | 0.04% | 13F | |
| Goldman Sachs Group Inc. | 446,950 | 2.56% | $39.5 million | 0.00% | +33,524 | 13F |
| Geode Capital Management, LLC | 339,327 | 1.94% | $30.0 million | 0.00% | +41,779 | 13F |
| Needham Investment Management LLC | 323,700 | 1.85% | $28.6 million | 0.86% | +123,700 | 13F |
| Schonfeld Strategic Advisors LLC | 315,455 | 1.80% | $27.9 million | 0.15% | -341,097 | 13F |
| Silvercrest Asset Management Group LLC | 309,096 | 1.77% | $27.3 million | 0.18% | +26,723 | 13F |
| Jane Street Group, LLC | 294,802 | 1.69% | $26.0 million | 0.02% | new | 13F |
| Millennium Management LLC | 289,206 | 1.65% | $25.5 million | 0.02% | +111,650 | 13F |
| Driehaus Capital Management LLC | 288,979 | 1.65% | $25.5 million | 0.15% | -91,789 | 13F |
| Neuberger Berman Group LLC | 272,126 | 1.56% | $24.0 million | 0.02% | new | 13F |
| Emerald Advisers, LLC | 243,664 | 1.39% | $21.5 million | 0.51% | new | 13F |
| HRT Financial LP | 225,639 | 1.29% | $19.9 million | 0.04% | new | 13F |
| Franklin Resources Inc. | 223,763 | 1.28% | $19.8 million | 0.00% | -318,453 | 13F |
| Voloridge Investment Management, LLC | 223,276 | 1.28% | $19.7 million | 0.08% | new | 13F |
| Cooper Creek Partners Management LLC | 220,000 | 1.26% | $19.4 million | 0.81% | new | 13F |
| Renaissance Technologies LLC | 214,756 | 1.23% | $19.0 million | 0.03% | +172,156 | 13F |
| Walleye Capital LLC | 214,528 | 1.23% | $18.9 million | 0.10% | +203,099 | 13F |
| BNP Paribas Financial Markets | 204,181 | 1.17% | $18.0 million | 0.01% | +200,292 | 13F |
| Bank of America Corp. | 203,273 | 1.16% | $17.9 million | 0.00% | +155,240 | 13F |
| JPMorgan Chase & Co. | 200,790 | 1.15% | $17.1 million | 0.00% | +124,271 | 13F |
| Morgan Stanley | 182,007 | 1.04% | $16.1 million | 0.00% | +150,602 | 13F |
| AllianceBernstein L.P. | 609,607 | 3.49% | $15.5 million | 0.01% | -76,491 | 13F |
| Vanguard Portfolio Management LLC | 169,890 | 0.97% | $15.0 million | 0.00% | +10,989 | 13F |
| Wellington Management Group LLP | 168,139 | 0.96% | $14.8 million | 0.00% | new | 13F |
| Deutsche Bank AG | 165,367 | 0.95% | $14.6 million | 0.00% | +142,357 | 13F |
| Gilder Gagnon Howe & Co. LLC | 159,623 | 0.91% | $14.1 million | 0.15% | +50,046 | 13F |
| Emerald Mutual Fund Advisers Trust | 159,131 | 0.91% | $14.1 million | 0.49% | new | 13F |
| Price T Rowe Associates Inc. | 156,906 | 0.90% | $13.9 million | 0.00% | +141,970 | 13F |
| Softbank Group Corp. | 148,939 | 0.85% | $13.2 million | 0.07% | no change | 13F |
| Nuveen, LLC | 138,965 | 0.79% | $12.3 million | 0.00% | +103,244 | 13F |
| Northern Trust Corp. | 130,802 | 0.75% | $11.5 million | 0.00% | +19,955 | 13F |
| Healthcare of Ontario Pension Plan Trust Fund | 126,029 | 0.72% | $11.1 million | 0.02% | new | 13F |
| Citadel Advisors LLC | 122,425 | 0.70% | $10.8 million | 0.01% | new | 13F |
| Hood River Capital Management LLC | 121,738 | 0.70% | $10.7 million | 0.08% | new | 13F |
| S Squared Technology, LLC | 120,773 | 0.69% | $10.7 million | 3.31% | -72,000 | 13F |
| Lord, Abbett & Co. LLC | 118,432 | 0.68% | $10.5 million | 0.03% | new | 13F |
| Marshall Wace, LLP | 109,488 | 0.63% | $9.7 million | 0.01% | new | 13F |
| Barclays PLC | 99,686 | 0.57% | $8.8 million | 0.00% | +94,955 | 13F |
| Charles Schwab Investment Management Inc. | 98,449 | 0.56% | $8.7 million | 0.00% | +17,382 | 13F |
| Vanguard Fiduciary Trust Co. | 83,127 | 0.48% | $7.3 million | 0.00% | +18,085 | 13F |
| Wasatch Advisors LP | 81,559 | 0.47% | $7.2 million | 0.05% | -172,744 | 13F |
| Moody Aldrich Partners LLC | 81,393 | 0.47% | $7.2 million | 1.29% | new | 13F |
| Acadian Asset Management LLC | 78,902 | 0.45% | $7.0 million | 0.01% | new | 13F |
The 50 largest of the 184 funds that reported a position in AMBQ 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 AMBQ
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 47,300 | $4.2 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 23,400 | $2.1 million | 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 |
|---|---|---|---|---|---|---|---|
| 27 October 2026 | 13G/A | BlackRock, Inc. and 1 other | 1.6 million | 6.7% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 August 2026 | 13G/A | T. Rowe Price Investment Management, Inc. and 1 other | 1.0 million | 4.3% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 July 2026 | 13G | BlackRock, Inc. and 1 other | 1.3 million | 5.3% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 15 May 2026 | 13G | T. Rowe Price Investment Management, Inc. and 1 other | 1.3 million | 6.0% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 3 November 2025 | 13G | Kleiner Perkins Caufield & Byers XVI, LLC and 11 others | 1.5 million | 8.2% | 30 September 2025 | passive, other (13d-1(d)) | 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 |
|---|---|---|---|
| 27 August 2026 | 56 | $58.98 | SEC |
| 24 August 2026 | 5,206 | $59.02 | SEC |
| 19 August 2026 | 22 | $63.01 | SEC |
| 17 August 2026 | 40 | $64.51 | SEC |
| 30 July 2026 | 300 | $57.26 | SEC |
| 27 July 2026 | 123 | $70.28 | SEC |
| 22 July 2026 | 205 | $78.14 | SEC |
| 21 July 2026 | 7 | $73.37 | SEC |
| 20 July 2026 | 142 | $72.43 | SEC |
| 15 July 2026 | 291 | $85.48 | 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.