Granahan Investment Management - PLUG POWER INC ownership

PLUG POWER INC's ticker is PLUG and the CUSIP is 72919P202. A total of 535 filers reported holding PLUG POWER INC in Q1 2021. The put-call ratio across all filers is 1.51 and the average weighting 0.1%.

Quarter-by-quarter ownership
Granahan Investment Management ownership history of PLUG POWER INC
ValueSharesWeighting
Q1 2021$6,138,000
-32.6%
171,255
-36.2%
0.13%
-36.3%
Q4 2020$9,101,000
+114.0%
268,380
-15.4%
0.20%
+41.7%
Q3 2020$4,253,000
+771.5%
317,128
+130.2%
0.14%
+453.8%
Q1 2020$488,000137,7490.03%
Other shareholders
PLUG POWER INC shareholders Q1 2021
NameSharesValueWeighting ↓
Hudson Bay Capital Management LP 20,440,000$24,528,0000.26%
BOOTHBAY FUND MANAGEMENT, LLC 13,300$558,0000.13%
Mount Lucas Management LP 200,000$240,0000.05%
TWO SIGMA SECURITIES, LLC 36,324$44,0000.02%
EXANE DERIVATIVES 53,097$63,708,0000.01%
IFC Holdings Incorporated/FL 101,500$123,0000.01%
LEDERER & ASSOCIATES INVESTMENT COUNSEL/CA 10,000$12,0000.01%
THOMPSON INVESTMENT MANAGEMENT, INC. 52,000$62,0000.01%
WealthTrust Axiom LLC 26,500$31,0000.01%
BLUESTEIN R H & CO LLC 75,000$90,0000.01%
View complete list of PLUG POWER INC shareholders