Oberweis Asset Management Inc Tandem Diabetes Care Inc Transaction History

Oberweis Asset Management Inc

$2.02 Billion
Q4 2024

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 506,600 shares of TNDM stock, worth $15.7 Million. This represents 0.9% of its overall portfolio holdings.

Number of Shares

506,600

Previous 448,050 13.07%

Holding current value

$15.7 Million

Previous $19 Million 3.95%

% of portfolio

0.9%

Previous 1.02%

14 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q4 2024 Feb 14, 2025	BUY	$27.34 - $41.78 $1.6 Million - $2.45 Million	58,550 Added 13.07%	506,600 $18.2 Million
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

# of Institutions

346

Shares Held

70.9M

Call Options Held

3.11M

Put Options Held

181K

View Full List

About TANDEM DIABETES CARE INC

Ticker TNDM
Exchange NASDAQ
Sector Healthcare
Industry Medical Devices
Shares Outstandng 64,221,200
Market Cap $1.99B
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...

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Oberweis Asset Management Inc Tandem Diabetes Care Inc Transaction History