Historic short interest:
You can go to this link to check short interest in a stock:
http://nasdaqtrader.com/Trader.aspx?id=ShortInterest
Publication schedule is here:
http://nasdaqtrader.com/Trader.aspx?id=ShortIntPubSch
Settlement Date Short Interest Percent Change Average Daily Share Volume Days to Cover
01/15/2021 3,749,492 (1.23) 1,071,150 3.50
12/31/2020 3,796,196 (1.91) 910,136 4.17
12/15/2020 3,870,049 7.34 3,243,920 1.19
11/30/2020 3,605,307 (12.90) 1,129,781 3.19
11/13/2020 4,139,311 (13.90) 1,152,420 3.59
10/30/2020 4,807,667 5.16 1,099,633 4.37
10/15/2020 4,571,746 1.74 3,093,035 1.48
09/30/2020 4,493,746 4.82 1,762,383 2.55
09/15/2020 4,287,217 (10.22) 1,941,734 2.21
08/31/2020 4,775,363 (9.89) 3,104,278 1.54
08/14/2020 5,299,567 (1.09) 6,101,236 1.00
07/31/2020 5,358,213 32.75 4,927,051 1.09
07/15/2020 4,036,303 31.36 11,291,024 1.00
as of 6/30/20
Institutional Owners 167
Shares Outstanding 20,161,500 shares
Institutional Shares 11,259,410 - 55.85% (ex 13D/G)
https://fintel.io/so/us/cemi
06/30/2020 3,072,771 48.52 6,359,247 1.00
06/15/2020 2,068,862 44.92 842,041 2.46
05/29/2020 1,427,562 49.17 945,120 1.51
05/15/2020 956,995 15.38 1,369,442 1.00
04/30/2020 829,395 20.94 1,793,125 1.00
04/15/2020 685,815 64.57 2,209,075 1.00
as of 3/31/20
Institutional Owners 74
Shares Outstanding 20,161,500 shares
Institutional Shares 9,176,062 - 45.51% (ex 13D/G)
https://fintel.io/so/us/cemi?d=2020-03-31
03/31/2020 416,728 32.80 617,095 1.00
03/13/2020 313,792 17.24 300,084 1.05
02/28/2020 267,638 (1.43) 179,465 1.49
02/14/2020 271,507 14.65 56,829 4.78
01/31/2020 236,807 10.60 216,914 1.09
01/15/2020 214,120 2.89 157,476 1.36
12/31/2019 208,103 (2.37) 39,964 5.21
as of 12/19/19
Institutional Owners 73
Shares Outstanding 20,161,500 shares
Institutional Shares 10,211,291 - 50.65% (ex 13D/G)
https://fintel.io/so/us/cemi?d=2019-12-31
12/13/2019 213,156 11.53 31,765 6.71
11/29/2019 191,118 (4.04) 68,430 2.79
11/15/2019 199,154 (8.03) 98,687 2.02
10/31/2019 216,547 16.34 36,309 5.96
10/15/2019 186,126 14.07 40,379 4.61
