Mariner’s Impinj PI Stock Holding History

Mariner’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
2025 Q4	–	Sell	-7,165	Closed	-$1.3M	–	3741
2025 Q3	$1.3M	Buy	+7,165	New	+$1.13M	﹤0.01%	1719
2024 Q4	–	Sell	-1,299	Closed	-$281K	–	3485
2024 Q3	$281K	Buy	+1,299	New	+$220K	﹤0.01%	2630

Other funds holding PI

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

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

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

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

WRCM

Whale Rock Capital Management Boston, Massachusetts $7.74B AUM 180.85% 1-Year Est. Return

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

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

Mariner's PI Position: Q4 2025 in Review

Mariner sold out of Impinj (PI) in Q4 2025, closing a stake of 7,165 shares — an estimated $1.3M sold.

Mariner first reported a position in PI in Q3 2024 and held it in 2 quarters. The position peaked at $1.3M in Q3 2025. 328 funds tracked by Wall St. Rank hold PI as of Q4 2025.

Mariner reported no remaining Impinj position as of Q4 2025 after selling out during the quarter.
Mariner sold 7,165 Impinj shares in Q4 2025, an estimated $1.3M.
Mariner first reported a position in Impinj in Q3 2024 and held it in 2 quarters.
Mariner's Impinj position peaked at $1.3M in Q3 2025.
328 funds tracked by Wall St. Rank held Impinj as of Q4 2025.

Based on Mariner's 13F filing for Q4 2025, filed 13 Feb 2026.