Castleark Management’s Impinj PI Stock Holding History

Castleark 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 Q1	–	Sell	-40,540	Closed	-$7.05M	–	330
2025 Q4	$7.05M	Buy	+40,540	New	+$7.22M	0.21%	118
2024 Q4	–	Sell	-34,196	Closed	-$7.4M	–	320
2024 Q3	$7.4M	Buy	34,196 +3,610	+12%	+$612K	0.3%	71
2024 Q2	$4.79M	Buy	+30,586	New	+$4.55M	0.2%	116
2023 Q2	–	Sell	-42,665	Closed	-$5.78M	–	303
2023 Q1	$5.78M	Buy	42,665 +17,205	+68%	+$2.19M	0.28%	81
2022 Q4	$2.78M	Buy	+25,460	New	+$2.68M	0.15%	145
2022 Q2	–	Sell	-49,325	Closed	-$3.13M	–	333
2022 Q1	$3.13M	Buy	49,325 +380	+0.8%	+$27.5K	0.14%	154
2021 Q4	$4.34M	Buy	+48,945	New	+$3.55M	0.16%	143
2019 Q4	–	Sell	-111,562	Closed	-$3.44M	–	384
2019 Q3	$3.44M	Buy	111,562 +21,980	+25%	+$767K	0.14%	178
2019 Q2	$2.56M	Buy	+89,582	New	+$2.19M	0.1%	200
2017 Q1	–	Sell	-115,547	Closed	-$4.08M	–	402
2016 Q4	$4.08M	Buy	+115,547	New	+$3.54M	0.13%	207

Other funds holding PI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Sylebra Capital Palo Alto, California $774M AUM 56.69% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Castleark Management's PI Position: Q1 2026 in Review

Castleark Management sold out of Impinj (PI) in Q1 2026, closing a stake of 40,540 shares — an estimated $7.05M sold.

Castleark Management first reported a position in PI in Q4 2016 and held it in 10 quarters. The position peaked at $7.4M in Q3 2024. 290 funds tracked by Wall St. Rank hold PI as of Q1 2026.

Castleark Management reported no remaining Impinj position as of Q1 2026 after selling out during the quarter.
Castleark Management sold 40,540 Impinj shares in Q1 2026, an estimated $7.05M.
Castleark Management first reported a position in Impinj in Q4 2016 and held it in 10 quarters.
Castleark Management's Impinj position peaked at $7.4M in Q3 2024.
290 funds tracked by Wall St. Rank held Impinj as of Q1 2026.

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