HI
AMPX icon

Harbour Investments’s Amprius Technologies AMPX Stock Holding History

Harbour Investments’s Portfolio AMPX Stock Details AMPX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.39K Buy
+100
New +$1.79K ﹤0.01% 4145
2025
Q4 		– Sell
-600
Closed -$6.31K – 3871
2025
Q3 		$6.31K Buy
+600
New +$4.72K ﹤0.01% 2893

Other funds holding AMPX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
JAM
Jupiter Asset Management London, United Kingdom $20.2B AUM 29.18% 1-Year Est. Return

Harbour Investments's AMPX Position: Q2 2026 in Review

Harbour Investments opened a new position in Amprius Technologies (AMPX) in Q2 2026: 100 shares worth $1.39K. The stake represents ﹤0.01% of the portfolio and ranks #4145 among its holdings. This is a return to the name: Harbour Investments previously reported a position in AMPX as recently as Q3 2025.

Harbour Investments first reported a position in AMPX in Q3 2025 and has held it in 2 quarters since. The position peaked at $6.31K in Q3 2025. 261 funds tracked by Wall St. Rank hold AMPX as of Q2 2026.

  • Harbour Investments held 100 shares of Amprius Technologies worth $1.39K as of Q2 2026.
  • Amprius Technologies was a new Harbour Investments position in Q2 2026.
  • Amprius Technologies made up ﹤0.01% of Harbour Investments's portfolio in Q2 2026, its #4145 holding.
  • Harbour Investments first reported a position in Amprius Technologies in Q3 2025 and has held it in 2 quarters since.
  • Harbour Investments's Amprius Technologies position peaked at $6.31K in Q3 2025.
  • 261 funds tracked by Wall St. Rank held Amprius Technologies as of Q2 2026.

Based on Harbour Investments's 13F filing for Q2 2026, filed 12 Aug 2026.