Ambiq Micro, Inc. (AMBQ) — Institutional Holders, Q2 2026
185 institutional investment managers reported a AMBQ position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.5B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
AMBQ in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- D. E. ShawNew · +983,916 sh+$86.9M
- TWO SIGMA INVESTMENTSAdded · +614,992 sh+$54.3M
- STATE STREETAdded · +601,752 sh+$53.1M
- BlackRockAdded · +367,462 sh+$32.4M
- JANE STREET GROUPNew · +294,802 sh+$26.0M
Biggest sellers
- Schonfeld Strategic AdvisorsTrimmed · -341,097 sh-$30.1M
- FRANKLIN RESOURCESTrimmed · -318,453 sh-$28.1M
- T. Rowe Price Investment ManagementTrimmed · -261,192 sh-$23.1M
- Polar Asset Management PartnersSold out · -201,335 sh-$17.8M
- WASATCH ADVISORSTrimmed · -172,744 sh-$15.3M
AMBQ 13F holders ranked 1–100 of 185
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 1,380,623 sh | 1,380,623 | $121.9M | <0.01% | +36.3% |
| 2 | T. Rowe Price Investment Management#2 · 1,006,359 sh | 1,006,359 | $88.9M | 0.06% | -20.6% |
| 3 | D. E. Shaw#3 · 983,916 sh | 983,916 | $86.9M | 0.04% | New |
| 4 | Atreides Management#4 · 877,123 sh | 877,123 | $77.4M | 0.54% | +1.7% |
| 5 | STATE STREET#5 · 861,979 sh | 861,979 | $76.1M | <0.01% | +231.2% |
| 6 | VANGUARD CAPITAL MANAGEMENT#6 · 768,539 sh | 768,539 | $67.9M | <0.01% | +8.6% |
| 7 | TWO SIGMA INVESTMENTS#7 · 651,786 sh | 651,786 | $57.6M | 0.04% | +1671.4% |
| 8 | GOLDMAN SACHS GROUP#8 · 446,950 sh | 446,950 | $39.5M | <0.01% | +8.1% |
| 9 | GEODE CAPITAL MANAGEMENT#9 · 339,327 sh | 339,327 | $30.0M | <0.01% | +14.0% |
| 10 | NEEDHAM INVESTMENT MANAGEMENT#10 · 323,700 sh | 323,700 | $28.6M | 0.86% | +61.9% |
| 11 | Schonfeld Strategic Advisors#11 · 315,455 sh | 315,455 | $27.9M | 0.10% | -52.0% |
| 12 | SILVERCREST ASSET MANAGEMENT GROUP#12 · 309,096 sh | 309,096 | $27.3M | 0.18% | +9.5% |
| 13 | JANE STREET GROUP#13 · 294,802 sh | 294,802 | $26.0M | <0.01% | New |
| 14 | MILLENNIUM MANAGEMENT#14 · 289,206 sh | 289,206 | $25.5M | <0.01% | +62.9% |
| 15 | DRIEHAUS CAPITAL MANAGEMENT#15 · 288,979 sh | 288,979 | $25.5M | 0.15% | -24.1% |
| 16 | Neuberger Berman Group#16 · 272,126 sh | 272,126 | $24.0M | 0.02% | New |
| 17 | First Eagle Investment Management#17 · 244,394 sh | 244,394 | $21.6M | 0.04% | -12.4% |
| 18 | EMERALD ADVISERS#18 · 243,664 sh | 243,664 | $21.5M | 0.51% | New |
| 19 | HRT FINANCIAL#19 · 225,639 sh | 225,639 | $19.9M | 0.05% | New |
| 20 | FRANKLIN RESOURCES#20 · 223,763 sh | 223,763 | $19.8M | <0.01% | -58.7% |
| 21 | VOLORIDGE INVESTMENT MANAGEMENT#21 · 223,276 sh | 223,276 | $19.7M | 0.08% | New |
| 22 | COOPER CREEK PARTNERS MANAGEMENT#22 · 220,000 sh | 220,000 | $19.4M | 0.46% | New |
| 23 | RENAISSANCE TECHNOLOGIES#23 · 214,756 sh | 214,756 | $19.0M | 0.03% | +404.1% |
| 24 | Walleye Capital#24 · 214,528 sh | 214,528 | $18.9M | 0.07% | +1777.0% |
| 25 | BNP PARIBAS FINANCIAL MARKETS#25 · 204,181 sh | 204,181 | $18.0M | <0.01% | +5150.2% |
| 26 | BANK OF AMERICA#26 · 203,273 sh | 203,273 | $17.9M | <0.01% | +323.2% |
| 27 | JPMORGAN CHASE#27 · 200,790 sh | 200,790 | $17.1M | <0.01% | +162.4% |
| 28 | MORGAN STANLEY#28 · 182,007 sh | 182,007 | $16.1M | <0.01% | +479.5% |
| 29 | ALLIANCEBERNSTEIN L.P.#29 · 609,607 sh | 609,607 | $15.5M | <0.01% | -11.1% |
| 30 | VANGUARD PORTFOLIO MANAGEMENT#30 · 169,890 sh | 169,890 | $15.0M | <0.01% | +6.9% |
| 31 | WELLINGTON MANAGEMENT GROUP LLP#31 · 168,139 sh | 168,139 | $14.8M | <0.01% | New |
| 32 | DEUTSCHE BANK AG\#32 · 165,367 sh | 165,367 | $14.6M | <0.01% | +618.7% |
| 33 | GILDER GAGNON HOWE#33 · 159,623 sh | 159,623 | $14.1M | 0.15% | +45.7% |
| 34 | EMERALD MUTUAL FUND ADVISERS#34 · 159,131 sh | 159,131 | $14.1M | 0.49% | New |
| 35 | PRICE T ROWE ASSOCIATES#35 · 156,906 sh | 156,906 | $13.9M | <0.01% | +950.5% |
| 36 | SOFTBANK GROUP#36 · 148,939 sh | 148,939 | $13.2M | 0.07% | 0.0% |
| 37 | Nuveen#37 · 138,965 sh | 138,965 | $12.3M | <0.01% | +289.0% |
| 38 | NORTHERN#38 · 130,802 sh | 130,802 | $11.5M | <0.01% | +18.0% |
| 39 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#39 · 126,029 sh | 126,029 | $11.1M | 0.02% | New |
| 40 | CITADEL ADVISORS#40 · 122,425 sh | 122,425 | $10.8M | <0.01% | New |
| 41 | Hood River Capital Management#41 · 121,738 sh | 121,738 | $10.7M | 0.08% | New |
| 42 | S Squared Technology#42 · 120,773 sh | 120,773 | $10.7M | 3.31% | -37.3% |
| 43 | LORD, ABBETT#43 · 118,432 sh | 118,432 | $10.5M | 0.03% | New |
| 44 | MARSHALL WACE, LLP#44 · 109,488 sh | 109,488 | $9.7M | <0.01% | New |
| 45 | BARCLAYS PLC#45 · 99,686 sh | 99,686 | $8.8M | <0.01% | +2007.1% |
| 46 | CHARLES SCHWAB INVESTMENT MANAGEMENT#46 · 98,449 sh | 98,449 | $8.7M | <0.01% | +21.4% |
| 47 | VANGUARD FIDUCIARY#47 · 83,127 sh | 83,127 | $7.3M | <0.01% | +27.8% |
| 48 | WASATCH ADVISORS#48 · 81,559 sh | 81,559 | $7.2M | — | -67.9% |
| 49 | MOODY ALDRICH PARTNERS#49 · 81,393 sh | 81,393 | $7.2M | 1.29% | New |
| 50 | ACADIAN ASSET MANAGEMENT#50 · 78,902 sh | 78,902 | $7.0M | <0.01% | New |
| 51 | Point72 Asset Management, L.P.#51 · 77,165 sh | 77,165 | $6.8M | <0.01% | New |
| 52 | Voleon Capital Management#52 · 75,980 sh | 75,980 | $6.7M | 0.12% | New |
| 53 | PUBLIC SECTOR PENSION INVESTMENT BOARD#53 · 75,200 sh | 75,200 | $6.6M | 0.02% | New |
| 54 | Ghisallo Capital Management#54 · 75,000 sh | 75,000 | $6.6M | 0.13% | +275.0% |
| 55 | Trexquant Investment#55 · 73,600 sh | 73,600 | $6.5M | 0.04% | New |
| 56 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT#56 · 66,697 sh | 66,697 | $5.9M | 0.10% | -57.1% |
| 57 | ALGERT GLOBAL#57 · 66,008 sh | 66,008 | $5.8M | 0.07% | New |
| 58 | Woodline Partners#58 · 64,484 sh | 64,484 | $5.7M | 0.02% | New |
| 59 | Squarepoint Ops#59 · 63,228 sh | 63,228 | $5.6M | <0.01% | +603.5% |
| 60 | Roubaix Capital#60 · 53,257 sh | 53,257 | $4.7M | 1.69% | -57.7% |
| 61 | Informed Momentum#61 · 50,968 sh | 50,968 | $4.5M | 0.40% | New |
| 62 | LMR Partners LLP#62 · 50,000 sh | 50,000 | $4.4M | 0.02% | New |
| 63 | Burkehill Global Management#63 · 50,000 sh | 50,000 | $4.4M | 0.16% | New |
| 64 | TUDOR INVESTMENT ET AL#64 · 49,508 sh | 49,508 | $4.4M | <0.01% | New |
| 65 | Bank of New York Mellon#65 · 48,659 sh | 48,659 | $4.3M | <0.01% | +15.8% |
| 66 | FMR#66 · 44,634 sh | 44,634 | $3.9M | <0.01% | +5749.8% |
| 67 | READYSTATE ASSET MANAGEMENT#67 · 37,930 sh | 37,930 | $3.3M | <0.01% | -9.5% |
| 68 | UBS Group AG#68 · 35,786 sh | 35,786 | $3.2M | <0.01% | -78.4% |
| 69 | LOS ANGELES CAPITAL MANAGEMENT#69 · 35,400 sh | 35,400 | $3.1M | 0.01% | -61.8% |
| 70 | ELEMENT CAPITAL MANAGEMENT#70 · 34,257 sh | 34,257 | $3.0M | 0.09% | New |
| 71 | G2 Investment Partners Management#71 · 33,000 sh | 33,000 | $2.9M | 0.53% | New |
| 72 | SEI INVESTMENTS#72 · 31,411 sh | 31,411 | $2.8M | <0.01% | New |
| 73 | JACOBS LEVY EQUITY MANAGEMENT#73 · 30,196 sh | 30,196 | $2.7M | <0.01% | New |
| 74 | TITAN GLOBAL CAPITAL MANAGEMENT USA#74 · 29,554 sh | 29,554 | $2.6M | 0.33% | New |
| 75 | Numerai GP#75 · 24,192 sh | 24,192 | $2.1M | 0.17% | New |
| 76 | AMERIPRISE FINANCIAL#76 · 23,821 sh | 23,821 | $2.1M | <0.01% | -35.2% |
| 77 | GSA CAPITAL PARTNERS LLP#77 · 22,899 sh | 22,899 | $2.0M | 0.13% | New |
| 78 | TD ASSET MANAGEMENT#78 · 22,758 sh | 22,758 | $2.0M | <0.01% | -4.3% |
| 79 | KORNITZER CAPITAL MANAGEMENT#79 · 22,023 sh | 22,023 | $1.9M | 0.04% | -16.7% |
| 80 | RHUMBLINE ADVISERS#80 · 21,856 sh | 21,856 | $1.9M | <0.01% | +55.7% |
| 81 | HighTower Advisors#81 · 21,768 sh | 21,768 | $1.9M | <0.01% | +0.5% |
| 82 | OCCUDO QUANTITATIVE STRATEGIES#82 · 21,398 sh | 21,398 | $1.9M | 0.10% | New |
| 83 | CITIGROUP#83 · 21,001 sh | 21,001 | $1.9M | <0.01% | +389.1% |
| 84 | Toronado Partners#84 · 19,225 sh | 19,225 | $1.7M | 4.78% | -9.4% |
| 85 | Capital Asset Advisory Services#85 · 18,928 sh | 18,928 | $1.7M | 0.06% | 0.0% |
| 86 | AXXCESS WEALTH MANAGEMENT#86 · 18,928 sh | 18,928 | $1.7M | — | New |
| 87 | GLENMEDE NA#87 · 18,329 sh | 18,329 | $1.6M | <0.01% | New |
| 88 | WELLS FARGO & COMPANY#88 · 17,012 sh | 17,012 | $1.5M | <0.01% | +147.6% |
| 89 | XTX Topco Ltd#89 · 16,723 sh | 16,723 | $1.5M | 0.02% | -32.7% |
| 90 | Quadrature Capital Ltd#90 · 16,432 sh | 16,432 | $1.5M | 0.01% | +48.7% |
| 91 | ESSEX INVESTMENT MANAGEMENT#91 · 13,679 sh | 13,679 | $1.2M | — | -28.8% |
| 92 | Ilex Capital Partners (UK) LLP#92 · 13,515 sh | 13,515 | $1.2M | 0.02% | New |
| 93 | Lighthouse Investment Partners#93 · 12,834 sh | 12,834 | $1.1M | 0.03% | New |
| 94 | Quantbot Technologies#94 · 12,832 sh | 12,832 | $1.1M | 0.04% | -15.3% |
| 95 | Russell Investments Group, Ltd.#95 · 12,268 sh | 12,268 | $1.1M | <0.01% | +763.3% |
| 96 | STIFEL FINANCIAL#96 · 12,112 sh | 12,112 | $1.1M | <0.01% | -56.3% |
| 97 | ENVESTNET ASSET MANAGEMENT#97 · 11,532 sh | 11,532 | $1.0M | <0.01% | New |
| 98 | MetLife Investment Management#98 · 10,932 sh | 10,932 | $965.3K | <0.01% | +7.5% |
| 99 | FORA Capital#99 · 10,902 sh | 10,902 | $963.2K | 0.07% | New |
| 100 | Quantinno Capital Management#100 · 10,878 sh | 10,878 | $960.5K | <0.01% | New |
Funds that sold out of AMBQ in Q2 2026 (10)
Held AMBQ at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Polar Asset Management Partners201,335 sh | 201,335 | $5.1M |
| Monashee Investment Management103,756 sh | 103,756 | $2.6M |
| LAZARD ASSET MANAGEMENT64,247 sh | 64,247 | $1.6M |
| CenterBook Partners55,568 sh | 55,568 | $1.4M |
| Aquatic Capital Management779 sh | 779 | $19.8K |
| Hurley Capital200 sh | 200 | $5.1K |
| MAI Capital Management20 sh | 20 | $509.00 |
| Rachor Investment Advisory Services13 sh | 13 | $331.00 |
| Root Financial Partners4 sh | 4 | $102.00 |
| True Wealth Design1 sh | 1 | $26.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.