EIM
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Essex Investment Management’s AmpliTech AMPG Stock Holding History

Essex Investment Management’s Portfolio AMPG Stock Details AMPG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$167K Hold
87,840
– – 0.03% 210
2025
Q4 		$263K Buy
87,840
+18,523
+27% +$62.6K 0.04% 191
2025
Q3 		$270K Hold
69,317
– – 0.04% 186
2025
Q2 		$147K Buy
69,317
+10,650
+18% +$20.2K 0.03% 209
2025
Q1 		$90.9K Buy
+58,667
New +$119K 0.02% 224

Other funds holding AMPG

BA
Bard Associates Chicago, Illinois $451M AUM 66.6% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
CDMG
Creek Drive Management Group San Francisco, California $439M AUM
CCC
Cable Car Capital San Francisco, California $289M AUM 26.33% 1-Year Est. Return
IWC
Integrated Wealth Concepts Waltham, Massachusetts $20.5B AUM 24.45% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
PHS
Pekin Hardy Strauss Chicago, Illinois $1.14B AUM 37.36% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

Essex Investment Management's AMPG Position: Q1 2026 in Review

Essex Investment Management held its AmpliTech (AMPG) position steady in Q1 2026 at 87,840 shares worth $167K. The position accounts for 0.03% of the portfolio, ranked #210.

Essex Investment Management first reported a position in AMPG in Q1 2025 and has held it in 5 quarters since. The position peaked at $270K in Q3 2025. 38 funds tracked by Wall St. Rank hold AMPG as of Q1 2026.

  • Essex Investment Management held 87,840 shares of AmpliTech worth $167K as of Q1 2026.
  • Essex Investment Management left its AmpliTech share count unchanged in Q1 2026.
  • AmpliTech made up 0.03% of Essex Investment Management's portfolio in Q1 2026, its #210 holding.
  • Essex Investment Management first reported a position in AmpliTech in Q1 2025 and has held it in 5 quarters since.
  • Essex Investment Management's AmpliTech position peaked at $270K in Q3 2025.
  • 38 funds tracked by Wall St. Rank held AmpliTech as of Q1 2026.

Based on Essex Investment Management's 13F filing for Q1 2026, filed 11 May 2026.