Does Fred Alger Management own PI stock?

Yes. As of its Q2 2026 13F, Fred Alger Management holds 159,966 shares of PI (Impinj), worth $22.9M.

How many shares of PI does Fred Alger Management own?

As of its Q2 2026 13F, Fred Alger Management holds 159,966 shares of PI (Impinj).

As of its Q2 2026 13F, Fred Alger Management's PI position is worth $22.9M.

In Q2 2026, Fred Alger Management reduced its PI position by 55,050 shares (-25.6%).

Fred Alger Management already held PI in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

Position history for FRED ALGER MANAGEMENT, LLC's holdings in IMPINJ INC

Current Value

$22.9M

Current Shares

159,966

Total Value Change

+$21.6M

Total Shares Change

+68,085

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	159,966	-25.6%	$22.9M	0.1%	$143.23	0
2026-Q1	Increased	215,016	+325.0%	$22.1M	0.1%	$102.70	46
2025-Q4	Decreased	50,596	-62.7%	$8.8M	0.0%	$174.01	0
2025-Q3	Decreased	135,782	-53.3%	$24.5M	0.1%	$180.75	0
2025-Q2	Increased	290,913	+72.7%	$32.3M	0.1%	$111.07	52
2025-Q1	Increased	168,457	+57.6%	$15.3M	0.1%	$90.70	40
2024-Q4	Decreased	106,908	-11.7%	$15.5M	0.1%	$145.26	0
2024-Q3	Increased	121,117	+16.9%	$26.2M	0.1%	$216.52	40
2024-Q2	Decreased	103,602	-78.0%	$16.2M	0.1%	$156.77	0
2024-Q1	Decreased	471,721	-38.3%	$60.6M	0.3%	$128.41	0
2023-Q4	Decreased	764,465	-4.0%	$68.8M	0.4%	$90.03	0
2023-Q3	Increased	795,973	+249.6%	$43.8M	0.3%	$55.03	56
2023-Q2	Decreased	227,672	-32.2%	$20.4M	0.1%	$89.65	0
2023-Q1	Decreased	335,601	-21.0%	$45.5M	0.2%	$135.52	0
2022-Q4	Decreased	424,683	-31.7%	$46.4M	0.3%	$109.18	0
2022-Q3	Decreased	621,982	-28.7%	$49.8M	0.3%	$80.03	0
2022-Q2	Increased	872,330	+19.0%	$51.2M	0.2%	$58.67	41
2022-Q1	Increased	733,187	+31.1%	$46.6M	0.1%	$63.54	44
2021-Q4	Decreased	559,352	-41.7%	$49.6M	0.1%	$88.70	0
2021-Q3	Decreased	960,081	-8.6%	$54.9M	0.1%	$57.13	0
2021-Q2	Increased	1.1M	+32.6%	$54.2M	0.1%	$51.59	45
2021-Q1	Increased	791,699	+32.3%	$45M	0.1%	$56.87	45
2020-Q4	Decreased	598,289	-23.9%	$25.1M	0.1%	$41.87	0
2020-Q3	Increased	786,056	+3.4%	$20.7M	0.1%	$26.35	29
2020-Q2	Increased	760,448	+53.8%	$20.9M	0.1%	$27.47	40
2020-Q1	Increased	494,441	+373.4%	$8.3M	0.0%	$16.71	44
2019-Q4	Increased	104,442	+0.5%	$2.7M	0.0%	$25.86	26
2019-Q3	Increased	103,902	+0.3%	$3.2M	0.0%	$30.83	26
2019-Q2	Increased	103,583	+13.8%	$3M	0.0%	$28.62	30
2019-Q1	Decreased	91,009	-0.9%	$1.5M	0.0%	$16.76	0
2018-Q4	First report	91,881	-	$1.3M	0.0%	$14.55	0

Other major holders of PI: FMR LLC, BlackRock, Inc.