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AMPX

Amprius Technologies, Inc.
$12.38 -1.21 (-8.90%) At close · Jul 2
Market Cap
$1.75B
Shares
141,627,170

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 251
Total Value: $1,690,290,040
Total Shares: 100,254,822
Showing 1–100 of 268 holdings by value · page 1 of 3

Institutional Ownership Trend

16 quarters

Superinvestors Holding AMPX

All superinvestors →
Joel Greenblatt $666,256

Holder Concentration

Across 251 13F filers
Top Holder
9.2%
Jun 2023 → Mar 2026 · range 9.2% – 28.3%
of institutional value
Top 5
31.4%
Jun 2023 → Mar 2026 · range 31.4% – 76.8%
of institutional value
Top 10
47.6%
Jun 2023 → Mar 2026 · range 47.6% – 90.3%
of institutional value
HHI
316
Jun 2023 → Mar 2026 · range 316 – 1,514
Broadly held
Showing 100 of 268
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $155,543,792 9.20% 9,225,611
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $87,012,774 5.15% 5,160,900
Mega VANGUARD CAPITAL MANAGEMENT LLC $82,763,632 4.90% 4,908,875
Mega JANE STREET GROUP, LLC $70,148,658 4.15% 4,160,656
Large Driehaus Capital Management LLC $63,969,841 3.78% 3,794,178
Mega TWO SIGMA INVESTMENTS, LP $59,112,424 3.50% 3,506,075
Mega MORGAN STANLEY $53,314,132 3.15% 3,162,167
Mega GEODE CAPITAL MANAGEMENT, LLC $47,452,974 2.81% 2,814,530
Mega STATE STREET CORP $45,734,941 2.71% 2,712,630
Mega UBS Group AG $38,972,799 2.31% 2,311,554
Mega GOLDMAN SACHS GROUP INC $37,533,410 2.22% 2,226,181
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $34,137,453 2.02% 2,024,760
Mega PRICE T ROWE ASSOCIATES INC /MD/ $31,990,500 1.89% 1,897,420
Large Baird Financial Group, Inc. $26,724,751 1.58% 1,585,098
Mega CITADEL ADVISORS LLC $24,342,468 1.44% 1,443,800
Mega CITADEL ADVISORS LLC $24,255,806 1.44% 1,438,660
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $22,784,604 1.35% 1,351,400
Mega CITADEL ADVISORS LLC $22,496,298 1.33% 1,334,300
Mega JANE STREET GROUP, LLC $21,034,536 1.24% 1,247,600
Large MARSHALL WACE, LLP $20,697,318 1.22% 1,227,599
Large Qube Research & Technologies Ltd $20,696,830 1.22% 1,227,570
Mega JPMORGAN CHASE & CO $20,504,877 1.21% 1,216,185
Large Point72 Asset Management, L.P. $20,397,228 1.21% 1,209,800
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $19,728,408 1.17% 1,170,131
Mega JANE STREET GROUP, LLC $19,658,760 1.16% 1,166,000
Large PEAK6 LLC $18,136,302 1.07% 1,075,700
Mega D. E. Shaw & Co., Inc. $18,131,007 1.07% 1,075,386
Mega BARCLAYS PLC $17,786,068 1.05% 1,054,927
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $17,524,182 1.04% 1,039,394
Mega MILLENNIUM MANAGEMENT LLC $17,454,112 1.03% 1,035,238
Mega NORTHERN TRUST CORP Bank $17,241,455 1.02% 1,022,625
Large HRT FINANCIAL LP $16,904,813 1.00% 1,002,658
Mid Hood River Capital Management LLC $16,002,618 0.95% 949,147
Mid Stephens Investment Management Group LLC $15,057,800 0.89% 893,108
Mega DEUTSCHE BANK AG\ Bank $14,753,022 0.87% 875,031
Mega VANGUARD FIDUCIARY TRUST CO Bank $14,711,732 0.87% 872,582
Small Wolf Hill Capital Management, LP $13,537,315 0.80% 802,925
Small MYDA Advisors LLC $12,392,100 0.73% 735,000
Large STIFEL FINANCIAL CORP $12,361,279 0.73% 733,172
Large Trexquant Investment LP $12,076,093 0.71% 716,257
Mid PICTON MAHONEY ASSET MANAGEMENT $10,959,000 0.65% 650,000
Small Science & Technology Partners, L.P. $10,707,887 0.63% 635,106
Mid OBERWEIS ASSET MANAGEMENT INC/ $9,863,100 0.58% 585,000
Large SEI INVESTMENTS CO $9,764,653 0.58% 579,161
Large Russell Investments Group, Ltd. $9,162,782 0.54% 543,463
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $8,969,486 0.53% 531,998
Small THAMES CAPITAL MANAGEMENT LLC $8,882,387 0.53% 526,832
Mega UBS Group AG $8,430,000 0.50% 500,000
Mega Invesco Ltd. $8,409,834 0.50% 498,804
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $8,255,532 0.49% 489,652
Small ESSEX INVESTMENT MANAGEMENT CO LLC $7,510,135 0.44% 445,441
Large Allspring Global Investments Holdings, LLC $7,273,370 0.43% 431,398
Large SG Americas Securities, LLC Broker-Dealer $7,132,403 0.42% 423,037
Large POLEN CAPITAL MANAGEMENT LLC $7,117,364 0.42% 422,145
Large TUDOR INVESTMENT CORP ET AL $7,075,484 0.42% 419,661
Mid OPPENHEIMER & CO INC $6,954,901 0.41% 412,509
Mega FIRST TRUST ADVISORS LP $6,652,433 0.39% 394,569
Large Parallax Volatility Advisers, L.P. $6,491,100 0.38% 385,000
Small Palisades Investment Partners, LLC $6,229,365 0.37% 369,476
Large Calamos Advisors LLC $6,145,570 0.36% 364,506
Large RENAISSANCE TECHNOLOGIES LLC $6,061,591 0.36% 359,525
Small Lisanti Capital Growth, LLC $5,941,042 0.35% 352,375
Large Public Sector Pension Investment Board Pension $5,597,520 0.33% 332,000
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $5,393,159 0.32% 319,879
Mega Bank of New York Mellon Corp Bank $5,038,862 0.30% 298,865
Mid Voleon Capital Management LP $5,030,248 0.30% 298,354
Mega BNP PARIBAS ARBITRAGE, SA $4,831,165 0.29% 286,546
Mid Aquatic Capital Management LLC $4,765,698 0.28% 282,663
Mega BANK OF AMERICA CORP /DE/ Bank $4,474,947 0.26% 265,418
Small Informed Momentum Co LLC $4,417,926 0.26% 262,036
Mega Nuveen, LLC $4,112,069 0.24% 243,895
Mid ZEVENBERGEN CAPITAL INVESTMENTS LLC $3,993,712 0.24% 236,875
Large Point72 Asset Management, L.P. $3,982,332 0.24% 236,200
Small DLD Asset Management, LP $3,926,694 0.23% 232,900
Mega Swiss National Bank Bank $3,918,264 0.23% 232,400
Large Squarepoint Ops LLC $3,913,357 0.23% 232,109
Mid Legato Capital Management LLC $3,852,476 0.23% 228,498
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $3,829,445 0.23% 227,132
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $3,797,273 0.22% 225,224
Mid ALGERT GLOBAL LLC $3,630,210 0.21% 215,315
Small Sender Co & Partners, Inc. $3,022,036 0.18% 179,243
Large Squarepoint Ops LLC $2,931,954 0.17% 173,900
Large FEDERATED HERMES, INC. $2,862,035 0.17% 169,753
Large OSAIC HOLDINGS, INC. $2,857,635 0.17% 169,492
Large ALPS ADVISORS INC $2,822,701 0.17% 167,420
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $2,792,471 0.17% 165,627
Mega Amundi $2,774,970 0.16% 164,589
Mid Y-Intercept (Hong Kong) Ltd $2,768,816 0.16% 164,224
Small Huntleigh Advisors, Inc. $2,746,578 0.16% 162,905
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $2,695,964 0.16% 159,903
Large DNB Asset Management AS $2,580,119 0.15% 153,032
Small HUSSMAN STRATEGIC ADVISORS, INC. $2,478,420 0.15% 147,000
Large Janney Montgomery Scott LLC $2,448,847 0.14% 145,246
Mega AQR CAPITAL MANAGEMENT LLC $2,322,058 0.14% 137,726
Large Schonfeld Strategic Advisors LLC $2,289,149 0.14% 135,774
Mega LPL Financial LLC $2,272,407 0.13% 134,781
Mega RHUMBLINE ADVISERS $2,227,087 0.13% 132,093
Large BLAIR WILLIAM & CO/IL $2,134,846 0.13% 126,622
Mega MILLENNIUM MANAGEMENT LLC $2,107,500 0.12% 125,000
Small ARDSLEY ADVISORY PARTNERS LP $2,107,500 0.12% 125,000
Key facts CIK 1899287 CUSIP 03214Q108 13F (30d) 3 filings 3 filers Visit website Investor relations

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