SIMPLEX TRADING, LLC - ALTAIR ENGR INC ownership

ALTAIR ENGR INC's ticker is ALTR and the CUSIP is 021369103. A total of 133 filers reported holding ALTAIR ENGR INC in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of ALTAIR ENGR INC
ValueSharesWeighting
Q2 2023$0
-100.0%
3
-97.5%
0.00%
Q1 2023$8
-100.0%
122
-77.2%
0.00%
Q3 2021$37,000
+2.8%
5350.0%0.00%
Q2 2021$36,000
+16.1%
535
+7.4%
0.00%
Q1 2021$31,000
+520.0%
498
+408.2%
0.00%
Q4 2020$5,000
+66.7%
98
+28.9%
0.00%
Q2 2020$3,000
+50.0%
760.0%0.00%
Q1 2020$2,000
-96.1%
76
-94.7%
0.00%
Q4 2019$51,000
+1175.0%
1,444
+1103.3%
0.00%
Q1 2019$4,000
+100.0%
120
+21.2%
0.00%
Q4 2018$2,000990.00%
Other shareholders
ALTAIR ENGR INC shareholders Q2 2019
NameSharesValueWeighting ↓
Matrix Capital Management Company, LP 5,155,025$322,550,0003.72%
Conestoga Capital Advisors, LLC 2,311,234$144,614,0002.18%
SOUTHPORT MANAGEMENT, L.L.C. 5,000$312,850,0001.16%
Impax Asset Management Group plc 2,374,667$147,686,0000.76%
OAK RIDGE INVESTMENTS LLC 119,765$7,494,0000.70%
BRADLEY FOSTER & SARGENT INC/CT 427,210$26,731,0000.68%
PALISADE CAPITAL MANAGEMENT, LP 414,562$25,939,0000.61%
Zebra Capital Management LLC 4,732$296,0000.33%
Cinctive Capital Management LP 78,084$4,886,0000.30%
MCIA Inc 8,822$562,0000.28%
View complete list of ALTAIR ENGR INC shareholders