OBERWEIS ASSET MANAGEMENT INC/ - TANDEM DIABETES CARE INC ownership

TANDEM DIABETES CARE INC's ticker is TNDM and the CUSIP is 875372203. A total of 315 filers reported holding TANDEM DIABETES CARE INC in Q4 2020. The put-call ratio across all filers is 0.55 and the average weighting 0.4%.

Quarter-by-quarter ownership
OBERWEIS ASSET MANAGEMENT INC/ ownership history of TANDEM DIABETES CARE INC
ValueSharesWeighting
Q4 2020$3,538,000
-41.6%
36,980
-30.7%
0.93%
-54.3%
Q3 2020$6,057,000
+3.4%
53,370
-9.9%
2.04%
-11.4%
Q2 2020$5,859,000
+34.6%
59,225
-12.4%
2.30%
-4.2%
Q1 2020$4,352,000
-33.6%
67,630
-38.5%
2.40%
+10.0%
Q4 2019$6,554,000
-44.3%
109,940
-44.9%
2.18%
-17.9%
Q3 2019$11,761,000
-15.6%
199,410
-7.6%
2.66%
+5.0%
Q2 2019$13,931,000
+14.8%
215,920
+13.0%
2.53%
+3.9%
Q1 2019$12,136,000
+42.1%
191,120
-15.0%
2.44%
+27.6%
Q4 2018$8,538,000
-11.4%
224,860
-0.1%
1.91%
+2.2%
Q3 2018$9,641,000225,0501.87%
Other shareholders
TANDEM DIABETES CARE INC shareholders Q4 2020
NameSharesValueWeighting ↓
Delphi Management Partners VIII, L.L.C. 1,000,000$59,610,00047.04%
Prospect Capital Advisors, LLC 127,900$7,624,0004.68%
Asymmetry Capital Management, L.P. 43,559$2,597,0004.66%
Copernicus Capital Management, LLC 50,000$2,981,0003.91%
SECTORAL ASSET MANAGEMENT INC 341,714$20,370,0003.04%
FRIESS ASSOCIATES LLC 627,225$37,389,0002.60%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 1,361,345$81,150,0002.59%
Parkman Healthcare Partners LLC 134,959$8,045,0002.32%
OBERWEIS ASSET MANAGEMENT INC/ 109,940$6,554,0002.18%
First Light Asset Management, LLC 268,574$16,010,0002.05%
View complete list of TANDEM DIABETES CARE INC shareholders