Portolan Capital Management - GIBRALTAR INDS INC ownership

GIBRALTAR INDS INC's ticker is ROCK and the CUSIP is 374689107. A total of 234 filers reported holding GIBRALTAR INDS INC in Q1 2021. The put-call ratio across all filers is 0.73 and the average weighting 0.1%.

Quarter-by-quarter ownership
Portolan Capital Management ownership history of GIBRALTAR INDS INC
ValueSharesWeighting
Q1 2021$6,404,000
+25.6%
69,976
-1.3%
0.50%
+8.4%
Q4 2020$5,100,000
+85.3%
70,893
+67.8%
0.46%
+49.2%
Q3 2020$2,752,00042,2430.31%
Other shareholders
GIBRALTAR INDS INC shareholders Q1 2021
NameSharesValueWeighting ↓
NEUMEIER POMA INVESTMENT COUNSEL LLC 637,638$42,518,0002.37%
Spouting Rock Asset Management, LLC 33,688$2,246,0001.76%
Channing Capital Management, LLC 729,646$48,653,0001.38%
Teton Advisors, Inc. 95,500$6,368,0000.91%
Marks Group Wealth Management, Inc 76,464$5,104,0000.62%
Skylands Capital, LLC 77,400$5,161,0000.60%
GW&K Investment Management, LLC 1,010,631$67,389,0000.56%
PALISADE CAPITAL MANAGEMENT, LP 378,404$25,232,0000.51%
RBF Capital, LLC 123,099$8,208,0000.50%
SILVERCREST ASSET MANAGEMENT GROUP LLC 1,043,680$69,059,0000.44%
View complete list of GIBRALTAR INDS INC shareholders