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Granahan Investment Management’s Amprius Technologies AMPX Stock Holding History

Granahan Investment Management’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
Q1 		– Sell
-64,382
Closed -$508K – 150
2025
Q4 		$508K Buy
+64,382
New +$736K 0.02% 149

Other funds holding AMPX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Granahan Investment Management's AMPX Position: Q1 2026 in Review

Granahan Investment Management sold out of Amprius Technologies (AMPX) in Q1 2026, closing a stake of 64,382 shares — an estimated $508K sold.

Granahan Investment Management first reported a position in AMPX in Q4 2025 and held it in 1 quarter. The position peaked at $508K in Q4 2025. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

  • Granahan Investment Management reported no remaining Amprius Technologies position as of Q1 2026 after selling out during the quarter.
  • Granahan Investment Management sold 64,382 Amprius Technologies shares in Q1 2026, an estimated $508K.
  • Granahan Investment Management first reported a position in Amprius Technologies in Q4 2025 and held it in 1 quarter.
  • Granahan Investment Management's Amprius Technologies position peaked at $508K in Q4 2025.
  • 245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on Granahan Investment Management's 13F filing for Q1 2026, filed 15 May 2026.