IMPINJ INC (PI) — Institutional Holders, Q2 2026

321 institutional investment managers reported a PI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.8B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← PI stock profile

PI in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

119

Trimmed

Sold out

Biggest buyers

MILLENNIUM MANAGEMENTAdded · +732,108 sh+$104.9M
Broad Bay Capital ManagementNew · +328,700 sh+$47.1M
FMRAdded · +282,246 sh+$40.4M
WESTFIELD CAPITAL MANAGEMENTNew · +270,646 sh+$38.8M
MANUFACTURERS LIFE INSURANCE COMPANY, THEAdded · +243,379 sh+$34.9M

Biggest sellers

Alyeska Investment Group, L.P.Sold out · -734,787 sh-$105.2M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMETrimmed · -413,113 sh-$59.2M
SYLEBRA CAPITALTrimmed · -356,209 sh-$51.0M
AMERIPRISE FINANCIALTrimmed · -327,355 sh-$46.9M
Polar Asset Management PartnersSold out · -136,656 sh-$19.6M

PI 13F holders ranked 1–100 of 321

Institutional investors reporting a position in IMPINJ INC on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	FMR#1 · 4,562,799 sh	4,562,799	$653.5M	0.03%	+6.6%
2	BlackRock#2 · 4,449,389 sh	4,449,389	$637.3M	<0.01%	+3.2%
3	VANGUARD PORTFOLIO MANAGEMENT#3 · 2,194,236 sh	2,194,236	$314.3M	0.01%	+2.5%
4	STATE STREET#4 · 1,700,585 sh	1,700,585	$243.6M	<0.01%	+14.5%
5	Capital International Investors#5 · 1,443,452 sh	1,443,452	$206.7M	0.04%	+6.7%
6	VANGUARD CAPITAL MANAGEMENT#6 · 1,282,667 sh	1,282,667	$183.7M	<0.01%	+1.3%
7	Capital World Investors#7 · 1,124,066 sh	1,124,066	$161.0M	0.02%	+10.6%
8	MILLENNIUM MANAGEMENT#8 · 834,376 sh	834,376	$119.5M	0.04%	+715.9%
9	AMERICAN CENTURY COMPANIES#9 · 804,335 sh	804,335	$115.2M	0.05%	-1.7%
10	SYLEBRA CAPITAL#10 · 775,943 sh	775,943	$111.1M	11.77%	-31.5%
11	Chevy Chase#11 · 737,138 sh	737,138	$105.6M	0.27%	+1.2%
12	GEODE CAPITAL MANAGEMENT#12 · 733,594 sh	733,594	$105.1M	<0.01%	+7.6%
13	MANUFACTURERS LIFE INSURANCE COMPANY, THE#13 · 669,324 sh	669,324	$95.9M	0.07%	+57.1%
14	AMERIPRISE FINANCIAL#14 · 530,926 sh	530,926	$76.0M	0.02%	-38.1%
15	UBS Group AG#15 · 414,418 sh	414,418	$59.4M	<0.01%	-20.0%
16	Point72 Asset Management, L.P.#16 · 408,333 sh	408,333	$58.5M	0.06%	+41.2%
17	Whale Rock Capital Management#17 · 405,244 sh	405,244	$58.0M	0.47%	0.0%
18	GOLDMAN SACHS GROUP#18 · 388,783 sh	388,783	$55.7M	<0.01%	+41.5%
19	LINDEN ADVISORS#19 · 38,119,000 sh	38,119,000	$54.1M	0.28%	0.0%
20	MORGAN STANLEY#20 · 360,534 sh	360,534	$51.6M	<0.01%	+32.8%
21	PRICE T ROWE ASSOCIATES#21 · 357,059 sh	357,059	$51.1M	<0.01%	+16.8%
22	Nuveen#22 · 347,867 sh	347,867	$49.8M	0.01%	+16.9%
23	Broad Bay Capital Management#23 · 328,700 sh	328,700	$47.1M	4.40%	New
24	NORTHERN#24 · 320,053 sh	320,053	$45.8M	<0.01%	+8.3%
25	WILLIAM BLAIR INVESTMENT MANAGEMENT#25 · 296,821 sh	296,821	$42.5M	0.13%	+15.9%
26	CHARLES SCHWAB INVESTMENT MANAGEMENT#26 · 277,540 sh	277,540	$39.8M	<0.01%	+5.6%
27	WESTFIELD CAPITAL MANAGEMENT#27 · 270,646 sh	270,646	$38.8M	0.13%	New
28	AWM Investment Company#28 · 207,018 sh	207,018	$29.7M	2.57%	0.0%
29	ROYCE & ASSOCIATES#29 · 203,114 sh	203,114	$29.1M	0.23%	+2.1%
30	VANGUARD FIDUCIARY#30 · 197,514 sh	197,514	$28.3M	<0.01%	+3.9%
31	T. Rowe Price Investment Management#31 · 192,948 sh	192,948	$27.6M	0.02%	-35.7%
32	NORGES BANK#32 · 186,182 sh	186,182	$26.7M	<0.01%	—
33	Rockefeller Capital Management L.P.#33 · 181,548 sh	181,548	$26.0M	0.04%	+2.1%
34	EMERALD ADVISERS#34 · 176,780 sh	176,780	$25.3M	0.60%	-2.7%
35	VOYA INVESTMENT MANAGEMENT#35 · 170,699 sh	170,699	$24.4M	0.02%	-0.3%
36	BNP Paribas Asset Management Holding S.A.#36 · 164,883 sh	164,883	$23.6M	0.02%	+2.4%
37	Bank of New York Mellon#37 · 161,916 sh	161,916	$23.2M	<0.01%	+12.6%
38	FRED ALGER MANAGEMENT#38 · 159,966 sh	159,966	$22.9M	0.08%	-25.6%
39	Allspring Global Investments#39 · 157,343 sh	157,343	$22.6M	0.03%	-13.5%
40	RAYMOND JAMES FINANCIAL#40 · 156,740 sh	156,740	$22.4M	<0.01%	+8.0%
41	BAILLIE GIFFORD#41 · 155,965 sh	155,965	$22.3M	0.02%	-10.4%
42	abrdn plc#42 · 153,502 sh	153,502	$22.0M	0.03%	-1.4%
43	PRINCIPAL FINANCIAL GROUP#43 · 132,679 sh	132,679	$19.0M	<0.01%	+0.8%
44	WOLVERINE ASSET MANAGEMENT#44 · 12,051,163 sh	12,051,163	$17.0M	0.15%	0.0%
45	Squarepoint Ops#45 · 116,850 sh	116,850	$16.7M	0.02%	+128.4%
46	Fiera Capital#46 · 116,009 sh	116,009	$16.6M	0.06%	-42.9%
47	EMERALD MUTUAL FUND ADVISERS#47 · 111,287 sh	111,287	$15.9M	0.56%	0.0%
48	Toroso Investments#48 · 110,251 sh	110,251	$15.8M	0.03%	+15.8%
49	JENNISON ASSOCIATES#49 · 105,639 sh	105,639	$15.1M	<0.01%	-3.0%
50	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#50 · 104,713 sh	104,713	$15.0M	<0.01%	-79.8%
51	DEUTSCHE BANK AG\#51 · 104,061 sh	104,061	$14.9M	<0.01%	+8.1%
52	BANK OF AMERICA#52 · 475,799 sh	475,799	$14.3M	<0.01%	-2.5%
53	JPMORGAN CHASE#53 · 145,093 sh	145,093	$13.9M	<0.01%	-1.9%
54	PUBLIC SECTOR PENSION INVESTMENT BOARD#54 · 93,134 sh	93,134	$13.3M	0.03%	-3.5%
55	Invesco Ltd.#55 · 92,996 sh	92,996	$13.3M	<0.01%	+12.2%
56	ExodusPoint Capital Management#56 · 88,962 sh	88,962	$12.7M	0.08%	+182.3%
57	CAPTRUST FINANCIAL ADVISORS#57 · 87,454 sh	87,454	$12.5M	0.02%	+502.4%
58	Stephens Investment Management Group#58 · 82,897 sh	82,897	$11.9M	0.13%	+4.2%
59	CITADEL ADVISORS#59 · 1,205,088 sh	1,205,088	$10.5M	<0.01%	+4.9%
60	PEREGRINE INVESTMENT MANAGEMENT#60 · 71,010 sh	71,010	$10.2M	4.33%	+0.7%
61	WELLS FARGO & COMPANY#61 · 67,876 sh	67,876	$9.7M	<0.01%	+129.5%
62	RHUMBLINE ADVISERS#62 · 65,418 sh	65,418	$9.4M	<0.01%	-9.7%
63	Legal & General Group Plc#63 · 62,373 sh	62,373	$8.9M	<0.01%	+1.0%
64	SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT#64 · 61,500 sh	61,500	$8.8M	0.15%	New
65	KORNITZER CAPITAL MANAGEMENT#65 · 60,816 sh	60,816	$8.7M	0.18%	+494.7%
66	Swiss National Bank#66 · 58,100 sh	58,100	$8.3M	<0.01%	+2.8%
67	Weiss Asset Management#67 · 57,722 sh	57,722	$8.3M	0.09%	New
68	RIVERBRIDGE PARTNERS#68 · 56,028 sh	56,028	$8.0M	0.22%	New
69	NEW YORK STATE COMMON RETIREMENT FUND#69 · 55,729 sh	55,729	$8.0M	0.01%	+3.3%
70	ZAZOVE ASSOCIATES#70 · 4,990,000 sh	4,990,000	$7.0M	0.56%	New
71	Man Group plc#71 · 48,836 sh	48,836	$7.0M	0.01%	-26.6%
72	STATE OF WISCONSIN INVESTMENT BOARD#72 · 47,822 sh	47,822	$6.8M	0.01%	-14.9%
73	SEGALL BRYANT & HAMILL#73 · 47,808 sh	47,808	$6.8M	0.08%	New
74	Granite Investment Partners#74 · 47,616 sh	47,616	$6.8M	0.35%	0.0%
75	BNP PARIBAS FINANCIAL MARKETS#75 · 47,464 sh	47,464	$6.8M	<0.01%	+0.4%
76	ENVESTNET ASSET MANAGEMENT#76 · 42,303 sh	42,303	$6.1M	<0.01%	+1.0%
77	SUSQUEHANNA FUNDAMENTAL INVESTMENTS#77 · 42,253 sh	42,253	$6.1M	0.11%	+252.6%
78	WEALTH ENHANCEMENT ADVISORY SERVICES#78 · 41,585 sh	41,585	$6.0M	—	+3.8%
79	LOS ANGELES CAPITAL MANAGEMENT#79 · 39,913 sh	39,913	$5.7M	0.02%	New
80	SEI INVESTMENTS#80 · 38,265 sh	38,265	$5.5M	<0.01%	-17.7%
81	Mitsubishi UFJ Asset Management , Ltd.#81 · 37,970 sh	37,970	$5.4M	<0.01%	+22.2%
82	Z3 Capital Partners#82 · 37,678 sh	37,678	$5.4M	1.13%	+3.7%
83	Polar Capital Plc#83 · 37,648 sh	37,648	$5.4M	0.01%	+286.5%
84	Toronado Partners#84 · 37,455 sh	37,455	$5.4M	15.09%	-46.7%
85	MIRAE ASSET GLOBAL ETFS Ltd.#85 · 36,946 sh	36,946	$5.3M	<0.01%	-1.1%
86	CITIGROUP#86 · 36,259 sh	36,259	$5.2M	<0.01%	+24.2%
87	ARDSLEY ADVISORY PARTNERS#87 · 33,000 sh	33,000	$4.7M	0.49%	+187.0%
88	GILDER GAGNON HOWE#88 · 31,844 sh	31,844	$4.6M	0.05%	+24.4%
89	PRUDENTIAL FINANCIAL#89 · 28,272 sh	28,272	$4.0M	<0.01%	+1.0%
90	VANGUARD ASSET MANAGEMENT, Ltd#90 · 26,725 sh	26,725	$3.8M	<0.01%	+7.8%
91	COOPER CREEK PARTNERS MANAGEMENT#91 · 25,905 sh	25,905	$3.7M	0.09%	0.0%
92	ALLIANCEBERNSTEIN L.P.#92 · 35,954 sh	35,954	$3.7M	<0.01%	-62.9%
93	KENNEDY CAPITAL MANAGEMENT#93 · 25,600 sh	25,600	$3.7M	0.06%	-8.0%
94	Jupiter Topco#94 · 24,441 sh	24,441	$3.5M	<0.01%	—
95	IRONWOOD INVESTMENT MANAGEMENT#95 · 23,262 sh	23,262	$3.3M	1.15%	+2.4%
96	OSAIC#96 · 22,478 sh	22,478	$3.2M	<0.01%	-0.2%
97	BESSEMER GROUP#97 · 22,171 sh	22,171	$3.2M	<0.01%	+0.4%
98	GREAT WEST LIFE ASSURANCE#98 · 22,030 sh	22,030	$3.1M	<0.01%	-2.5%
99	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#99 · 20,500 sh	20,500	$2.9M	—	+4.5%
100	Taylor Frigon Capital Management#100 · 19,735 sh	19,735	$2.8M	—	0.0%

Funds that sold out of PI in Q2 2026 (38)

Held PI at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held PI in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Alyeska Investment Group, L.P.734,787 sh	734,787	$75.5M
Polar Asset Management Partners136,656 sh	136,656	$14.0M
OBERWEIS ASSET MANAGEMENT118,086 sh	118,086	$12.1M
WELLINGTON MANAGEMENT GROUP LLP105,398 sh	105,398	$10.8M
MARSHALL WACE, LLP61,319 sh	61,319	$6.3M
NORDEA INVESTMENT MANAGEMENT AB37,583 sh	37,583	$3.6M
CONGRESS ASSET MANAGEMENT17,668 sh	17,668	$1.8M
Inspire Advisors15,672 sh	15,672	$1.6M
NATIXIS6,800 sh	6,800	$698.4K
Niles Investment Management6,788 sh	6,788	$697.1K
Susquehanna Portfolio Strategies6,451 sh	6,451	$662.5K
ALLSTATE6,253 sh	6,253	$642.2K
Quantitative Investment Management4,898 sh	4,898	$503.0K
EP Wealth Advisors4,795 sh	4,795	$492.4K
INCEPTIONR4,567 sh	4,567	$469.0K
Blackstone3,649 sh	3,649	$374.8K
Headlands Technologies3,588 sh	3,588	$368.5K
AlphaGrep UK Ltd2,280 sh	2,280	$234.2K
GROUP ONE TRADING, L.P.1,349 sh	1,349	$138.5K
Asset Management One , Ltd.928 sh	928	$95.3K
VIRTUS ADVISERS900 sh	900	$92.4K
QUADRANT CAPITAL GROUP644 sh	644	$82.0K
Advisory Services Network500 sh	500	$51.4K
Aster Capital Management (DIFC) Ltd416 sh	416	$37.7K
Western Wealth Management269 sh	269	$27.6K
SUMMIT SECURITIES GROUP226 sh	226	$23.2K
Spire Wealth Management101 sh	101	$10.4K
MAI Capital Management74 sh	74	$7.6K
Rachor Investment Advisory Services20 sh	20	$2.1K
TWIN PEAKS WEALTH ADVISORS14 sh	14	$1.4K
Sound Income Strategies7 sh	7	$714.00
Golden State Equity Partners6 sh	6	$616.00
Bell Investment Advisors5 sh	5	$514.00
Kilter Group4 sh	4	$411.00
NATIONAL BANK OF CANADA4 sh	4	$410.00
First Pacific Financial2 sh	2	$206.00
Root Financial Partners2 sh	2	$205.00
Rakuten Securities2 sh	2	$205.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.