Amprius Technologies AMPX Institutional Ownership

Amprius Technologies, Inc. (NYSE:AMPX) is held by 260 institutional investors per 13F filings through June 2026.

• Their combined ownership stood at 68.2% of outstanding shares in June 2026, up from 61.4% in March 2026.
• They increased total shares held in Amprius Technologies by 26.47% from last quarter, and the number of investors in AMPX increased 120.34% annually.
• During the quarter, 174 of these 260 funds increased positions in AMPX, 63 reduced exposure, and 23 held steady.
• Combined, these investors held 97.88Mn shares in AMPX for June 2026, up by 20.49Mn shares quarter on quarter, and up 62.3Mn shares year over year.
• BlackRock, Inc. holds the largest position in AMPX at 11.34Mn shares as of June 30, 2026, or 7.9% of shares outstanding.
• Top purchasers of AMPX stock for the quarter ending June 2026 included JUPITER ASSET MANAGEMENT LTD (2.13Mn), BlackRock, Inc. (2.11Mn), Morgan Stanley (1.94Mn), UBS Group AG (1.76Mn), LMR Partners LLP (1.75Mn).
• Top sellers of AMPX stock for the quarter ending June 2026 included DRIEHAUS CAPITAL MANAGEMENT LLC (2.45Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.52Mn), MARSHALL WACE, LLP (1.1Mn), Jpmorgan Chase & Co (1.09Mn), JANE STREET GROUP, LLC (759.58K).
• Amprius Technologies's 10 largest shareholders as of June 2026 include BlackRock, Inc. (11.34Mn), VANGUARD CAPITAL MANAGEMENT LLC (5.56Mn), Morgan Stanley (5.11Mn), TWO SIGMA INVESTMENTS, LP (4.32Mn), UBS Group AG (4.07Mn), GEODE CAPITAL MANAGEMENT, LLC (3.52Mn), JANE STREET GROUP, LLC (3.4Mn), State Street Corp (3.24Mn), Goldman Sachs Group Inc (2.54Mn), JUPITER ASSET MANAGEMENT LTD (2.13Mn) per Business Quant data.