Impinj Ownership | Who Owns Impinj?

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Impinj Ownership Summary

Impinj is owned by 148.38% institutional investors, 4.13% insiders. Dld asset management, lp is the largest institutional shareholder, holding 40.51% of PI shares. American Funds SMALLCAP World A is the top mutual fund, with 8.00% of its assets in Impinj shares.

PI Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Impinj	148.38%	4.13%	-52.51%
Sector	Technology Stocks	50.63%	12.54%	36.83%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Dld asset management, lp	11.75M	40.51%	$19.74B
Fmr	4.34M	14.96%	$784.19M
Blackrock funding, inc. /de	4.10M	14.13%	$740.78M
Vanguard group	3.38M	11.65%	$610.95M
Blackrock	1.97M	7.07%	$308.97M
Sylebra capital	1.83M	6.31%	$330.64M
Capital investors	1.56M	5.39%	$282.74M
Whale rock capital management	1.22M	4.22%	$221.34M
Invesco	1.21M	4.17%	$218.58M
State street	1.15M	3.97%	$208.24M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sylebra capital	1.83M	18.26%	$330.64M
Toronado partners	100.80K	12.08%	$18.22M
Peregrine investment management	52.67K	4.68%	$9.52M
Awm investment company	178.17K	3.02%	$32.20M
Whale rock capital management	1.22M	2.61%	$221.34M
Pachira investments	20.50K	2.08%	$3.71M
Gallo partners, lp	13.38K	1.80%	$2.42M
Ironwood investment management	22.82K	1.80%	$4.12M
Lisanti capital growth	37.35K	1.65%	$6.75M
Taylor frigon capital management	17.97K	1.61%	$3.25M

Top Buyers

Holder	Shares	% Assets	Change
Driehaus capital management	514.50K	0.67%	514.50K
Janus henderson group	435.96K	0.03%	424.85K
Invesco	1.21M	0.03%	393.69K
Whale rock capital management	1.22M	2.61%	338.49K
Norges bank	276.05K	0.01%	276.05K

Top Sellers

Holder	Shares	% Assets	Change
Macquarie group	-	-	-459.45K
Ubs asset management americas	359.36K	0.01%	-325.21K
Point72 asset management	-	-	-317.10K
Sylebra capital	1.83M	18.26%	-300.00K
Westfield capital management co lp	-	-	-274.85K

New Positions

Holder	Shares	% Assets	Change	Value
Driehaus capital management	514.50K	0.67%	514.50K	$93.00M
Norges bank	276.05K	0.01%	276.05K	$40.10M
William blair investment management	200.60K	0.09%	200.60K	$36.26M
Axa investment managers	176.01K	0.09%	176.01K	$31.81M
T. rowe price investment management	163.49K	0.02%	163.49K	$29.55M

Sold Out

Holder	Change
Toronto dominion bank	-1.00
Tfc financial management	-1.00
Rosenberg matthew hamilton	-1.00
Householder group estate & retirement specialist	-1.00
Riggs asset managment	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	319	6.33%	43,043,183	2.03%	148	0.70%	155	-19.27%	113	76.56%
Jun 30, 2025	307	5.14%	43,298,082	41.55%	149	1.31%	197	18.67%	65	-21.69%
Mar 31, 2025	9	-97.35%	2,431,215	-92.07%	8	0.07%	5	-97.46%	1	-98.94%
Dec 31, 2024	152	-54.76%	12,716,483	-57.54%	45	0.40%	86	-58.65%	49	-44.32%
Sep 30, 2024	334	18.44%	29,942,501	7.48%	106	1.07%	208	41.50%	88	-11.11%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
American Funds SMALLCAP World A	2.32M	8.00%	36.66K
Fidelity Select Semiconductors	1.41M	4.85%	-
iShares Core S&P Small-Cap ETF	1.40M	4.80%	-
Fidelity Growth Compy Commingled Pl S	969.23K	3.33%	1.20K
Vanguard Total Stock Mkt Idx Inv	810.68K	2.79%	-17.41K
Vanguard US Total Market Shares ETF	755.86K	2.65%	58.77K
Fidelity Growth Compy Commingled Pl O	694.34K	2.47%	-
Fidelity Growth Company Fund	649.21K	2.23%	-2.49K
Vanguard Small Cap Index	633.12K	2.18%	-4.15K
iShares Russell 2000 ETF	626.43K	2.15%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 25, 2025	SYLEBRA CAPITAL LLC	See Footnote	Sell	$7.73M
Nov 24, 2025	SYLEBRA CAPITAL LLC	See Footnote	Sell	$5.09M
Nov 21, 2025	SYLEBRA CAPITAL LLC	See Footnotes	Sell	$472.43K
Nov 20, 2025	SYLEBRA CAPITAL LLC	See Footnotes	Sell	$1.26M
Nov 12, 2025	SYLEBRA CAPITAL LLC	See Footnotes	Sell	$589.56K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	10
2025 Q3	-	38
2025 Q2	-	-
2025 Q1	-	24
2024 Q4	-	72

PI Ownership FAQ

Who owns the most shares of Impinj?

Impinj’s largest shareholders are Dld asset management, lp (11.75M shares, 40.51%), Fmr (4.34M shares, 14.96%), and Blackrock funding, inc. /de (4.1M shares, 14.13%). Together, they hold 69.59% of Impinj’s total shares outstanding.

Does Blackrock own Impinj?

Yes, BlackRock owns 7.07% of Impinj, totaling 1.97M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 308.97M$. In the last quarter, BlackRock increased its holdings by 113.03K shares, a 6.08% change.

Who is Impinj’s biggest shareholder by percentage of total assets invested?

Sylebra capital is Impinj’s biggest shareholder by percentage of total assets invested, with 18.26% of its assets in 1.83M Impinj shares, valued at 330.64M$.

Who is the top mutual fund holder of Impinj shares?

American Funds SMALLCAP World A is the top mutual fund holder of Impinj shares, with 8.00% of its total shares outstanding invested in 2.32M Impinj shares.

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