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Oberweis Asset Management’s Impinj PI Stock Holding History

Oberweis Asset Management’s Portfolio PI Stock Details PI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-118,086
Closed -$12.1M – 192
2026
Q1 		$12.1M Buy
118,086
+10,966
+10% +$1.46M 0.36% 104
2025
Q4 		$18.6M Hold
107,120
– – 0.68% 56
2025
Q3 		$19.4M Buy
+107,120
New +$16.9M 0.74% 51
2023
Q4 		– Sell
-35,700
Closed -$1.96M – 217
2023
Q3 		$1.96M Sell
35,700
-143,445
-80% -$9.73M 0.21% 160
2023
Q2 		$16.1M Buy
179,145
+32,870
+22% +$3.5M 1.95% 5
2023
Q1 		$19.8M Buy
146,275
+35,610
+32% +$4.54M 3.08% 4
2022
Q4 		$12.1M Buy
110,665
+74,965
+210% +$7.9M 2.57% 4
2022
Q3 		$2.86M Buy
35,700
+6,700
+23% +$558K 0.67% 28
2022
Q2 		$1.7M Buy
29,000
+4,300
+17% +$216K 0.43% 47
2022
Q1 		$1.57M Buy
+24,700
New +$1.78M 0.31% 66
2020
Q3 		– Sell
-16,800
Closed -$461K – 136
2020
Q2 		$461K Sell
16,800
-4,200
-20% -$98.3K 0.18% 86
2020
Q1 		$351K Sell
21,000
-14,300
-41% -$386K 0.19% 121
2019
Q4 		$913K Sell
35,300
-1,300
-4% -$40.4K 0.3% 84
2019
Q3 		$1.13M Buy
+36,600
New +$1.28M 0.25% 62

Other funds holding PI

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
SC
Sylebra Capital Palo Alto, California $945M AUM 22.34% 1-Year Est. Return

Oberweis Asset Management's PI Position: Q2 2026 in Review

Oberweis Asset Management sold out of Impinj (PI) in Q2 2026, closing a stake of 118,086 shares — an estimated $12.1M sold.

Oberweis Asset Management first reported a position in PI in Q3 2019 and held it in 14 quarters. The position peaked at $19.8M in Q1 2023. 317 funds tracked by Wall St. Rank hold PI as of Q2 2026.

  • Oberweis Asset Management reported no remaining Impinj position as of Q2 2026 after selling out during the quarter.
  • Oberweis Asset Management sold 118,086 Impinj shares in Q2 2026, an estimated $12.1M.
  • Oberweis Asset Management first reported a position in Impinj in Q3 2019 and held it in 14 quarters.
  • Oberweis Asset Management's Impinj position peaked at $19.8M in Q1 2023.
  • 317 funds tracked by Wall St. Rank held Impinj as of Q2 2026.

Based on Oberweis Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.