Portolan Capital Management - IMPINJ INC ownership

IMPINJ INC's ticker is PI and the CUSIP is 453204109. A total of 181 filers reported holding IMPINJ INC in Q4 2021. The put-call ratio across all filers is 0.63 and the average weighting 0.3%.

Quarter-by-quarter ownership
Portolan Capital Management ownership history of IMPINJ INC
ValueSharesWeighting
Q4 2021$11,609,000
+114.0%
130,882
+37.9%
0.78%
+97.7%
Q3 2021$5,424,000
+525.6%
94,941
+465.1%
0.40%
+537.1%
Q2 2021$867,000
-66.0%
16,802
-62.6%
0.06%
-69.0%
Q1 2021$2,553,000
-60.4%
44,885
-70.9%
0.20%
-65.9%
Q4 2020$6,450,000
+42.7%
154,039
-10.2%
0.59%
+14.5%
Q3 2020$4,521,000171,5740.51%
Other shareholders
IMPINJ INC shareholders Q4 2021
NameSharesValueWeighting ↓
Sylebra Capital Ltd 3,948,566$217,289,58711.55%
SYLEBRA CAPITAL LLC 3,948,566$217,289,58711.55%
Toronado Partners, LLC 355,825$19,581,05011.10%
Ararat Capital Management LP 287,740$15,834,3325.38%
AWM Investment Company, Inc. 365,428$20,109,5032.97%
Atika Capital Management LLC 363,000$19,975,8902.62%
Aquila Investment Management LLC 50,000$2,751,5002.54%
SORA INVESTORS LLC 165,000$9,079,9502.03%
Taylor Frigon Capital Management LLC 58,094$3,196,9131.78%
HARBER ASSET MANAGEMENT LLC 89,042$4,899,9811.37%
View complete list of IMPINJ INC shareholders