GROUP ONE TRADING, L.P. - ALTAIR ENGR INC ownership

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ALTAIR ENGR INC's ticker is and the CUSIP is 021369903. A total of 3 filers reported holding ALTAIR ENGR INC in Q3 2021. The put-call ratio across all filers is - and the average weighting 0.0%.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of ALTAIR ENGR INC
ValueSharesWeighting
Q3 2021$0
-100.0%
400
-95.5%
0.00%
-100.0%
Q2 2021$614,000
+2356.0%
8,900
+1171.4%
0.00%–
Q4 2019$25,000
+47.1%
700
+40.0%
0.00%–
Q3 2019$17,000
-81.5%
500
-80.0%
0.00%
-100.0%
Q1 2019$92,000–2,500–0.00%–
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Other shareholders
ALTAIR ENGR INC shareholders Q3 2021
NameSharesValueWeighting ↓
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of ALTAIR ENGR INC shareholders