IMPINJ INC - Common Stock (PI)

CUSIP: 453204109

Q1 2021 13F Holders as of 31 Mar 2021

Holder snapshot 7 signals
Share change
+1,575,501
Put/Call ratio
38%
SEC-reported price per share
$56.87
Number of holders
159
Value change
+$94,138,797
Number of buys
79
Open additional details 1 more signal available
Number of sells
65
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
30,052,889

Security key

453204109

Report period

Q1 2021

Institutions

159

Top holders

10

Ownership snapshot

Top reported holders of PI - IMPINJ INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Sylebra Capital Ltd
Disclosed value leader
Sylebra Capital Ltd
Comparable rows
15/15
Latest evidence
31 Dec 2020
13F Lead comparable stake: 15% Showing 1-6 of 15 holder rows.

Quick read

Sylebra Capital Ltd leads the comparable SEC ownership view at 15%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Sylebra Capital Ltd's linked filing trail.
Comparable ownership Top 5
Sylebra Capital Ltd 15%
Chevy Chase Trust Holdings, LLC 5.8%
BlackRock Finance, Inc. 4.2%
GILDER GAGNON HOWE & CO LLC 3.4%
VANGUARD GROUP INC 3.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Sylebra Capital Ltd
13F
Company
13F
15%
$184,117,000
4,397,337 shares
31 Dec 2020
Chevy Chase Trust Holdings, LLC
13F
Company
13F
5.8%
$72,668,000
1,735,544 shares
31 Dec 2020
BlackRock Finance, Inc.
13F
Company
13F
4.2%
$53,254,000
1,271,864 shares
31 Dec 2020
GILDER GAGNON HOWE & CO LLC
13F
Company
13F
3.4%
$43,146,000
1,030,466 shares
31 Dec 2020
VANGUARD GROUP INC
13F
Company
13F
3.3%
$41,257,000
985,363 shares
31 Dec 2020
AMERIPRISE FINANCIAL INC
13F
Company
13F
3.2%
$40,429,000
966,428 shares
31 Dec 2020
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
159
Shares
22,064,677
Rows available
159
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders
148
Q1 2021 holders
159
Holder diff
11
Investor Q4 2020 Shares Q1 2021 Shares Share Diff Share Chg % Q4 2020 value Q1 2021 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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