A detailed history of Oberweis Asset Management Inc transactions in Tandem Diabetes Care Inc stock. As of the latest transaction made, Oberweis Asset Management Inc holds 448,050 shares of TNDM stock, worth $16.6 Million. This represents 1.02% of its overall portfolio holdings.

Number of Shares
448,050
Previous 282,000 58.88%
Holding current value
$16.6 Million
Previous $11.4 Million 67.21%
% of portfolio
1.02%
Previous 0.72%

Shares

13 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 14, 2024

BUY
$35.21 - $47.3 $5.85 Million - $7.85 Million
166,050 Added 58.88%
448,050 $19 Million
Q2 2024

Aug 14, 2024

BUY
$30.43 - $53.43 $8.58 Million - $15.1 Million
282,000 New
282,000 $11.4 Million
Q1 2021

May 17, 2021

SELL
$81.28 - $104.34 $3.01 Million - $3.86 Million
-36,980 Closed
0 $0
Q4 2020

Feb 16, 2021

SELL
$86.4 - $121.75 $1.42 Million - $2 Million
-16,390 Reduced 30.71%
36,980 $3.54 Million
Q3 2020

Nov 16, 2020

SELL
$95.43 - $116.09 $558,742 - $679,706
-5,855 Reduced 9.89%
53,370 $6.06 Million
Q2 2020

Aug 14, 2020

SELL
$60.05 - $98.92 $504,720 - $831,422
-8,405 Reduced 12.43%
59,225 $5.86 Million
Q1 2020

May 15, 2020

SELL
$47.37 - $90.04 $2 Million - $3.81 Million
-42,310 Reduced 38.48%
67,630 $4.35 Million
Q4 2019

Feb 14, 2020

SELL
$53.13 - $71.19 $4.75 Million - $6.37 Million
-89,470 Reduced 44.87%
109,940 $6.55 Million
Q3 2019

Nov 14, 2019

SELL
$57.11 - $73.3 $942,886 - $1.21 Million
-16,510 Reduced 7.65%
199,410 $11.8 Million
Q2 2019

Aug 14, 2019

BUY
$54.41 - $71.7 $1.35 Million - $1.78 Million
24,800 Added 12.98%
215,920 $13.9 Million
Q1 2019

May 15, 2019

SELL
$32.25 - $73.56 $1.09 Million - $2.48 Million
-33,740 Reduced 15.0%
191,120 $12.1 Million
Q4 2018

Feb 14, 2019

SELL
$28.45 - $40.65 $5,405 - $7,723
-190 Reduced 0.08%
224,860 $8.54 Million
Q3 2018

Nov 14, 2018

BUY
$21.39 - $51.17 $4.81 Million - $11.5 Million
225,050 New
225,050 $9.64 Million

Others Institutions Holding TNDM

About TANDEM DIABETES CARE INC


  • Ticker TNDM
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Medical Devices
  • Shares Outstandng 64,221,200
  • Market Cap $2.38B
  • Description
  • Tandem Diabetes Care, Inc., a medical device company, designs, develops, and commercializes various products for people with insulin-dependent diabetes in the United States and internationally. The company's flagship product is the t:slim X2 insulin delivery system, a pump platform that comprises t:slim X2 pump, its 300-unit disposable insulin c...
More about TNDM
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