Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-11, as of 2026-08-07)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | AMBQ · NYSE | 24,184,536 | 17,491,540 | 72.3% | 184 | 023193105 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (184 of 184 · 023193105)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1,380,623 | 5.71% | $121.9M | +367,462 (+36.3%) |
| 2 | T. Rowe Price Investment Management, Inc. | 1,006,359 | 4.16% | $88.9M | -261,192 (-20.6%) |
| 3 | D. E. Shaw & Co., Inc. | 983,916 | 4.07% | $86.9M | NEW |
| 4 | Atreides Management, LP | 877,123 | 3.63% | $77.4M | +14,948 (+1.7%) |
| 5 | STATE STREET CORP | 861,979 | 3.56% | $76.1M | +601,752 (+231.2%) |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 768,539 | 3.18% | $67.9M | +61,135 (+8.6%) |
| 7 | TWO SIGMA INVESTMENTS, LP | 651,786 | 2.70% | $57.6M | +614,992 (+1671.4%) |
| 8 | ALLIANCEBERNSTEIN L.P. | 609,607 | 2.52% | $15.5M | -76,491 (-11.1%) |
| 9 | First Eagle Investment Management, LLC | 488,788 | 2.02% | $43.2M | +209,715 (+75.1%) |
| 10 | GOLDMAN SACHS GROUP INC | 446,950 | 1.85% | $39.5M | +33,524 (+8.1%) |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 339,327 | 1.40% | $30.0M | +41,779 (+14.0%) |
| 12 | NEEDHAM INVESTMENT MANAGEMENT LLC | 323,700 | 1.34% | $28.6M | +123,700 (+61.9%) |
| 13 | Schonfeld Strategic Advisors LLC | 315,455 | 1.30% | $27.9M | -341,097 (-52.0%) |
| 14 | SILVERCREST ASSET MANAGEMENT GROUP LLC | 309,096 | 1.28% | $27.3M | +26,723 (+9.5%) |
| 15 | JANE STREET GROUP, LLC | 294,802 | 1.22% | $26.0M | NEW |
| 16 | MILLENNIUM MANAGEMENT LLC | 289,206 | 1.20% | $25.5M | +111,650 (+62.9%) |
| 17 | Driehaus Capital Management LLC | 288,979 | 1.19% | $25.5M | -91,789 (-24.1%) |
| 18 | NEUBERGER BERMAN GROUP LLC | 272,126 | 1.13% | $24.0M | NEW |
| 19 | EMERALD ADVISERS, LLC | 243,664 | 1.01% | $21.5M | NEW |
| 20 | HRT FINANCIAL LP | 225,639 | 0.93% | $19.9M | NEW |
| 21 | FRANKLIN RESOURCES INC | 223,763 | 0.93% | $19.8M | -318,453 (-58.7%) |
| 22 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 223,276 | 0.92% | $19.7M | NEW |
| 23 | COOPER CREEK PARTNERS MANAGEMENT LLC | 220,000 | 0.91% | $19.4M | NEW |
| 24 | RENAISSANCE TECHNOLOGIES LLC | 214,756 | 0.89% | $19.0M | +172,156 (+404.1%) |
| 25 | Walleye Capital LLC | 214,528 | 0.89% | $18.9M | +203,099 (+1777.0%) |
| 26 | BNP PARIBAS FINANCIAL MARKETS | 204,181 | 0.84% | $18.0M | +200,292 (+5150.2%) |
| 27 | BANK OF AMERICA CORP /DE/ | 203,273 | 0.84% | $17.9M | +155,240 (+323.2%) |
| 28 | JPMORGAN CHASE & CO | 200,790 | 0.83% | $17.1M | +124,271 (+162.4%) |
| 29 | MORGAN STANLEY | 182,007 | 0.75% | $16.1M | +150,602 (+479.5%) |
| 30 | VANGUARD PORTFOLIO MANAGEMENT LLC | 169,890 | 0.70% | $15.0M | +10,989 (+6.9%) |
| 31 | WELLINGTON MANAGEMENT GROUP LLP | 168,139 | 0.70% | $14.8M | NEW |
| 32 | DEUTSCHE BANK AG\ | 165,367 | 0.68% | $14.6M | +142,357 (+618.7%) |
| 33 | GILDER GAGNON HOWE & CO LLC | 159,623 | 0.66% | $14.1M | +50,046 (+45.7%) |
| 34 | EMERALD MUTUAL FUND ADVISERS TRUST | 159,131 | 0.66% | $14.1M | NEW |
| 35 | PRICE T ROWE ASSOCIATES INC /MD/ | 156,906 | 0.65% | $13.9M | +141,970 (+950.5%) |
| 36 | SOFTBANK GROUP CORP. | 148,939 | 0.62% | $13.2M | — |
| 37 | Nuveen, LLC | 138,965 | 0.57% | $12.3M | +103,244 (+289.0%) |
| 38 | NORTHERN TRUST CORP | 130,802 | 0.54% | $11.5M | +19,955 (+18.0%) |
| 39 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 126,029 | 0.52% | $11.1M | NEW |
| 40 | CITADEL ADVISORS LLC | 122,425 | 0.51% | $10.8M | NEW |
| 41 | Hood River Capital Management LLC | 121,738 | 0.50% | $10.7M | NEW |
| 42 | S SQUARED TECHNOLOGY, LLC | 120,773 | 0.50% | $10.7M | -72,000 (-37.3%) |
| 43 | LORD, ABBETT & CO. LLC | 118,432 | 0.49% | $10.5M | NEW |
| 44 | MARSHALL WACE, LLP | 109,488 | 0.45% | $9.7M | NEW |
| 45 | BARCLAYS PLC | 99,686 | 0.41% | $8.8M | +94,955 (+2007.1%) |
| 46 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 98,449 | 0.41% | $8.7M | +17,382 (+21.4%) |
| 47 | VANGUARD FIDUCIARY TRUST CO | 83,127 | 0.34% | $7.3M | +18,085 (+27.8%) |
| 48 | WASATCH ADVISORS LP | 81,559 | 0.34% | $7.2M | -172,744 (-67.9%) |
| 49 | Moody Aldrich Partners LLC | 81,393 | 0.34% | $7.2M | NEW |
| 50 | ACADIAN ASSET MANAGEMENT LLC | 78,902 | 0.33% | $7.0M | NEW |
| 51 | Point72 Asset Management, L.P. | 77,165 | 0.32% | $6.8M | NEW |
| 52 | Voleon Capital Management LP | 75,980 | 0.31% | $6.7M | NEW |
| 53 | Public Sector Pension Investment Board | 75,200 | 0.31% | $6.6M | NEW |
| 54 | Ghisallo Capital Management LLC | 75,000 | 0.31% | $6.6M | +55,000 (+275.0%) |
| 55 | Trexquant Investment LP | 73,600 | 0.30% | $6.5M | NEW |
| 56 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 66,697 | 0.28% | $5.9M | -88,900 (-57.1%) |
| 57 | ALGERT GLOBAL LLC | 66,008 | 0.27% | $5.8M | NEW |
| 58 | Woodline Partners LP | 64,484 | 0.27% | $5.7M | NEW |
| 59 | Squarepoint Ops LLC | 63,228 | 0.26% | $5.6M | +54,240 (+603.5%) |
| 60 | Roubaix Capital, LLC | 53,257 | 0.22% | $4.7M | -72,564 (-57.7%) |
| 61 | Informed Momentum Co LLC | 50,968 | 0.21% | $4.5M | NEW |
| 62 | LMR Partners LLP | 50,000 | 0.21% | $4.4M | NEW |
| 63 | Burkehill Global Management, LP | 50,000 | 0.21% | $4.4M | NEW |
| 64 | TUDOR INVESTMENT CORP ET AL | 49,508 | 0.20% | $4.4M | NEW |
| 65 | Bank of New York Mellon Corp | 48,659 | 0.20% | $4.3M | +6,629 (+15.8%) |
| 66 | FMR LLC | 44,634 | 0.18% | $3.9M | +43,871 (+5749.8%) |
| 67 | READYSTATE ASSET MANAGEMENT LP | 37,930 | 0.16% | $3.3M | -3,987 (-9.5%) |
| 68 | UBS Group AG | 35,786 | 0.15% | $3.2M | -130,051 (-78.4%) |
| 69 | LOS ANGELES CAPITAL MANAGEMENT LLC | 35,400 | 0.15% | $3.1M | -57,184 (-61.8%) |
| 70 | ELEMENT CAPITAL MANAGEMENT LLC | 34,257 | 0.14% | $3.0M | NEW |
| 71 | G2 Investment Partners Management LLC | 33,000 | 0.14% | $2.9M | NEW |
| 72 | SEI INVESTMENTS CO | 31,411 | 0.13% | $2.8M | NEW |
| 73 | JACOBS LEVY EQUITY MANAGEMENT, INC | 30,196 | 0.12% | $2.7M | NEW |
| 74 | TITAN GLOBAL CAPITAL MANAGEMENT USA LLC | 29,554 | 0.12% | $2.6M | NEW |
| 75 | Numerai GP LLC | 24,192 | 0.10% | $2.1M | NEW |
| 76 | AMERIPRISE FINANCIAL INC | 23,821 | 0.10% | $2.1M | -12,962 (-35.2%) |
| 77 | GSA CAPITAL PARTNERS LLP | 22,899 | 0.09% | $2.0M | NEW |
| 78 | TD Asset Management Inc | 22,758 | 0.09% | $2.0M | -1,012 (-4.3%) |
| 79 | KORNITZER CAPITAL MANAGEMENT INC /KS | 22,023 | 0.09% | $1.9M | -4,419 (-16.7%) |
| 80 | RHUMBLINE ADVISERS | 21,856 | 0.09% | $1.9M | +7,819 (+55.7%) |
| 81 | HighTower Advisors, LLC | 21,768 | 0.09% | $1.9M | +116 (+0.5%) |
| 82 | OCCUDO QUANTITATIVE STRATEGIES LP | 21,398 | 0.09% | $1.9M | NEW |
| 83 | CITIGROUP INC | 21,001 | 0.09% | $1.9M | +16,707 (+389.1%) |
| 84 | Toronado Partners, LLC | 19,225 | 0.08% | $1.7M | -1,997 (-9.4%) |
| 85 | AXXCESS WEALTH MANAGEMENT, LLC | 18,928 | 0.08% | $1.7M | NEW |
| 86 | Capital Asset Advisory Services LLC | 18,928 | 0.08% | $1.7M | — |
| 87 | GLENMEDE TRUST CO NA | 18,329 | 0.08% | $1.6M | NEW |
| 88 | WELLS FARGO & COMPANY/MN | 17,012 | 0.07% | $1.5M | +10,142 (+147.6%) |
| 89 | XTX Topco Ltd | 16,723 | 0.07% | $1.5M | -8,131 (-32.7%) |
| 90 | Quadrature Capital Ltd | 16,432 | 0.07% | $1.5M | +5,380 (+48.7%) |
| 91 | ESSEX INVESTMENT MANAGEMENT CO LLC | 13,679 | 0.06% | $1.2M | -5,537 (-28.8%) |
| 92 | Ilex Capital Partners (UK) LLP | 13,515 | 0.06% | $1.2M | NEW |
| 93 | Lighthouse Investment Partners, LLC | 12,834 | 0.05% | $1.1M | NEW |
| 94 | Quantbot Technologies LP | 12,832 | 0.05% | $1.1M | -2,324 (-15.3%) |
| 95 | Russell Investments Group, Ltd. | 12,268 | 0.05% | $1.1M | +10,847 (+763.3%) |
| 96 | STIFEL FINANCIAL CORP | 12,112 | 0.05% | $1.1M | -15,583 (-56.3%) |
| 97 | ENVESTNET ASSET MANAGEMENT INC | 11,532 | 0.05% | $1.0M | NEW |
| 98 | MetLife Investment Management, LLC | 10,932 | 0.05% | $965K | +763 (+7.5%) |
| 99 | FORA Capital, LLC | 10,902 | 0.05% | $963K | NEW |
| 100 | Quantinno Capital Management LP | 10,878 | 0.04% | $961K | NEW |
| 101 | State of Wyoming | 10,658 | 0.04% | $941K | NEW |
| 102 | AMERICAN CENTURY COMPANIES INC | 10,630 | 0.04% | $939K | NEW |
| 103 | Alyeska Investment Group, L.P. | 10,329 | 0.04% | $912K | -67,976 (-86.8%) |
| 104 | Invesco Ltd. | 10,205 | 0.04% | $901K | NEW |
| 105 | ProShare Advisors LLC | 9,227 | 0.04% | $815K | NEW |
| 106 | Spark Investment Management LLC | 8,800 | 0.04% | $777K | NEW |
| 107 | Perpetual Ltd | 8,671 | 0.04% | $766K | -7,978 (-47.9%) |
| 108 | DNB Asset Management AS | 8,587 | 0.04% | $758K | NEW |
| 109 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 8,562 | 0.04% | $756K | +70 (+0.8%) |
| 110 | Entropy Technologies, LP | 8,415 | 0.03% | $743K | NEW |
| 111 | Jain Global LLC | 8,029 | 0.03% | $709K | NEW |
| 112 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 7,726 | 0.03% | $682K | NEW |
| 113 | Inspire Investing, LLC | 7,640 | 0.03% | $675K | -13,166 (-63.3%) |
| 114 | BOOTHBAY FUND MANAGEMENT, LLC | 7,099 | 0.03% | $627K | NEW |
| 115 | NEW YORK STATE COMMON RETIREMENT FUND | 6,900 | 0.03% | $609K | +5,200 (+305.9%) |
| 116 | AQR CAPITAL MANAGEMENT LLC | 6,779 | 0.03% | $599K | NEW |
| 117 | SG Americas Securities, LLC | 6,688 | 0.03% | $591K | NEW |
| 118 | PRELUDE CAPITAL MANAGEMENT, LLC | 6,292 | 0.03% | $556K | NEW |
| 119 | AXQ CAPITAL, LP | 6,103 | 0.03% | $539K | NEW |
| 120 | Engineers Gate Manager LP | 5,942 | 0.02% | $525K | NEW |
| 121 | Diametric Capital, LP | 5,935 | 0.02% | $524K | NEW |
| 122 | CANADA PENSION PLAN INVESTMENT BOARD | 5,500 | 0.02% | $486K | NEW |
| 123 | Police & Firemen's Retirement System of New Jersey | 5,484 | 0.02% | $484K | +903 (+19.7%) |
| 124 | Lotus Technology Management, LP | 5,443 | 0.02% | $481K | NEW |
| 125 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | 5,436 | 0.02% | $480K | NEW |
| 126 | INTECH INVESTMENT MANAGEMENT LLC | 5,209 | 0.02% | $460K | NEW |
| 127 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 4,916 | 0.02% | $434K | NEW |
| 128 | FULLER & THALER ASSET MANAGEMENT, INC. | 4,867 | 0.02% | $430K | NEW |
| 129 | Magnetar Financial LLC | 4,865 | 0.02% | $430K | NEW |
| 130 | KINGSWOOD WEALTH ADVISORS, LLC | 4,850 | 0.02% | $428K | NEW |
| 131 | LPL Financial LLC | 4,491 | 0.02% | $397K | NEW |
| 132 | ROYAL BANK OF CANADA | 4,488 | 0.02% | $397K | -7,112 (-61.3%) |
| 133 | Orion Porfolio Solutions, LLC | 4,198 | 0.02% | $371K | NEW |
| 134 | VOYA INVESTMENT MANAGEMENT LLC | 3,590 | 0.01% | $317K | NEW |
| 135 | BANK OF NOVA SCOTIA | 3,500 | 0.01% | $309K | NEW |
| 136 | Centiva Capital, LP | 3,468 | 0.01% | $306K | NEW |
| 137 | TWO SIGMA SECURITIES, LLC | 3,321 | 0.01% | $293K | NEW |
| 138 | Vanguard Global Advisers, LLC | 3,087 | 0.01% | $273K | -44 (-1.4%) |
| 139 | PRUDENTIAL FINANCIAL INC | 3,025 | 0.01% | $267K | NEW |
| 140 | Resolute Advisors LLC | 3,000 | 0.01% | $265K | NEW |
| 141 | OMERS ADMINISTRATION Corp | 3,000 | 0.01% | $265K | NEW |
| 142 | Calamos Advisors LLC | 2,727 | 0.01% | $241K | NEW |
| 143 | nVerses Capital, LLC | 2,675 | 0.01% | $236K | NEW |
| 144 | Azimuth Capital Investment Management LLC | 2,650 | 0.01% | $234K | NEW |
| 145 | MERCER GLOBAL ADVISORS INC /ADV | 2,602 | 0.01% | $230K | NEW |
| 146 | US BANCORP \DE\ | 2,499 | 0.01% | $221K | NEW |
| 147 | Brevan Howard Capital Management LP | 2,452 | 0.01% | $217K | NEW |
| 148 | IMC-Chicago, LLC | 2,291 | 0.01% | $202K | NEW |
| 149 | SBI Securities Co., Ltd. | 2,090 | 0.01% | $185K | +1,259 (+151.5%) |
| 150 | Legal & General Group Plc | 1,804 | 0.01% | $159K | +220 (+13.9%) |
| 151 | Ameritas Investment Partners, Inc. | 1,687 | 0.01% | $149K | +205 (+13.8%) |
| 152 | NATIXIS | 1,487 | 0.01% | $132K | NEW |
| 153 | Aster Capital Management (DIFC) Ltd | 1,290 | 0.01% | $114K | NEW |
| 154 | IFG Advisory, LLC | 1,125 | 0.00% | $99K | NEW |
| 155 | STRS OHIO | 1,000 | 0.00% | $88K | +200 (+25.0%) |
| 156 | GROUP ONE TRADING LLC | 883 | 0.00% | $78K | NEW |
| 157 | Tower Research Capital LLC (TRC) | 579 | 0.00% | $51K | -769 (-57.0%) |
| 158 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 254 | 0.00% | $22K | -735 (-74.3%) |
| 159 | NISA INVESTMENT ADVISORS, LLC | 236 | 0.00% | $21K | NEW |
| 160 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 227 | 0.00% | $20K | — |
| 161 | Arax Advisory Partners | 223 | 0.00% | $20K | +218 (+4360.0%) |
| 162 | Versant Capital Management, Inc | 190 | 0.00% | $17K | NEW |
| 163 | SIMPLEX TRADING, LLC | 147 | 0.00% | $13K | +114 (+345.5%) |
| 164 | Farther Finance Advisors, LLC | 139 | 0.00% | $12K | +120 (+631.6%) |
| 165 | Caitong International Asset Management Co., Ltd | 103 | 0.00% | $9K | -89 (-46.4%) |
| 166 | OSAIC HOLDINGS, INC. | 100 | 0.00% | $9K | -235 (-70.1%) |
| 167 | Kemnay Advisory Services Inc. | 85 | 0.00% | $8K | NEW |
| 168 | Sterling Capital Management LLC | 65 | 0.00% | $6K | -225 (-77.6%) |
| 169 | Clearstead Advisors, LLC | 60 | 0.00% | $5K | NEW |
| 170 | GAMMA Investing LLC | 50 | 0.00% | $4K | +39 (+354.5%) |
| 171 | Bare Financial Services, Inc | 39 | 0.00% | $3K | NEW |
| 172 | Allworth Financial LP | 29 | 0.00% | $3K | +22 (+314.3%) |
| 173 | ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ | 17 | 0.00% | $2K | — |
| 174 | Quarry LP | 15 | 0.00% | $1K | NEW |
| 175 | ROTHSCHILD INVESTMENT LLC | 14 | 0.00% | $1K | +13 (+1300.0%) |
| 176 | Parallel Advisors, LLC | 13 | 0.00% | $1K | NEW |
| 177 | FIFTH THIRD BANCORP | 10 | 0.00% | $883 | NEW |
| 178 | Hughes Financial Services, LLC | 7 | 0.00% | $618 | NEW |
| 179 | Essential Partners LLC | 6 | 0.00% | $530 | +3 (+100.0%) |
| 180 | Rialto Wealth Management, LLC | 6 | 0.00% | $530 | NEW |
| 181 | Avion Wealth | 5 | 0.00% | $0 | NEW |
| 182 | Pinnacle Wealth Planning Services, Inc. | 2 | 0.00% | $177 | NEW |
| 183 | Coston, McIsaac & Partners | 1 | 0.00% | $0 | NEW |
| 184 | EverSource Wealth Advisors, LLC | 1 | 0.00% | $88 | -1 (-50.0%) |
Exited since 2026-03-31 (11 filers; largest 11 shown)
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | SCHEDULE 13G/A | 2026-08-14 | 2026-06-30 | 1,006,359 | 4.3% |
| BlackRock, Inc. | SCHEDULE 13G | 2026-07-27 | 2026-06-30 | 1,264,792 | 5.3% |
| Kleiner Perkins Caufield & Byers XVI, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 1,439,667 | 7.9% |
| Kleiner Perkins Select Associates, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 592,882 | 3.3% |
| Kleiner Perkins Select Founders Fund, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 17,015 | 0.1% |
| Kleiner Perkins Select Fund, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 575,867 | 3.2% |
| KPCB XVI Associates, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 1,488,949 | 8.2% |
| KPCB XVI Founders Fund, LLC | SCHEDULE 13G | 2025-11-03 | 2025-09-30 | 49,282 | 0.3% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.