Amprius Technologies Inc (AMPX) Institutional Ownership Tracker (Q2 2026)

AMPX ranks #2360 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.

AMPX is a disclosed holding of Jane Street (Jane Street Group), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.

266 institutions disclose a position in AMPX, but none treat it as a major bet — even Shannon River Fund Management LLC, its most concentrated holder, allocates just 1.0% of its own portfolio to it.

California State Teachers Retirement System has added to its AMPX position for two straight quarters, increasing it by $140.4M to reach $141.3M today.

Engineers Gate Manager LP has trimmed its AMPX position for two straight quarters, cutting it by $2.6M while still holding $219.8K.

AMPX is up 0.4% today, and institutions have been net buyers of $472.9M this quarter — today's price move and the underlying institutional flow are pointing the same direction.

AMPX reported a net loss of $36.5M over the trailing twelve months.

• Not yet profitable — net loss of $36.5M over the trailing twelve months
• Revenue grew 143.6% year over year
• Net income improved year over year, from -$38.0M to -$36.5M
• Operating cash flow was negative, using $31.1M in cash
• Current ratio of 7.08x — enough short-term assets to cover short-term liabilities
• Liabilities run 0.51x equity — within a conventional range