David A. Siegel Tandem Diabetes Care Inc Transaction History

Two Sigma Advisers, LP

$46.1 Billion
Q2 2025

A detailed history of David A. Siegel (Two Sigma Advisers, LP) transactions in Tandem Diabetes Care Inc stock. As of the latest transaction made, Two Sigma Advisers, LP holds 888,083 shares of TNDM stock, worth $13.6 Million. This represents 0.04% of its overall portfolio holdings.

Number of Shares

888,083

Previous 679,583 30.68%

Holding current value

$13.6 Million

Previous $13 Million 27.14%

% of portfolio

0.04%

Previous 0.03%

28 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	BUY	$16.35 - $23.52 $3.41 Million - $4.9 Million	208,500 Added 30.68%	888,083 $16.6 Million
Q1 2025 May 15, 2025	SELL	$17.89 - $37.53 $3.62 Million - $7.59 Million	-202,200 Reduced 22.93%	679,583 $13 Million
Q4 2024 Feb 14, 2025	SELL	$27.34 - $41.78 $549,534 - $839,778	-20,100 Reduced 2.23%	881,783 $31.8 Million
Q3 2024 Nov 14, 2024	SELL	$35.21 - $47.3 $8.09 Million - $10.9 Million	-229,700 Reduced 20.3%	901,883 $38.2 Million
Q2 2024 Aug 14, 2024	BUY	$30.43 - $53.43 $1.66 Million - $2.92 Million	54,700 Added 5.08%	1,131,583 $45.6 Million
Q1 2024 May 15, 2024	BUY	$22.09 - $35.41 $1.66 Million - $2.67 Million	75,300 Added 7.52%	1,076,883 $38.1 Million
Q4 2023 Feb 14, 2024	SELL	$14.28 - $31.03 $411,264 - $893,664	-28,800 Reduced 2.8%	1,001,583 $29.6 Million
Q3 2023 Nov 14, 2023	SELL	$19.33 - $36.22 $3.54 Million - $6.63 Million	-183,100 Reduced 15.09%	1,030,383 $21.4 Million
Q2 2023 Aug 14, 2023	BUY	$24.18 - $42.46 $4.6 Million - $8.07 Million	190,090 Added 18.57%	1,213,483 $29.8 Million
Q1 2023 May 15, 2023	BUY	$35.86 - $46.5 $2.23 Million - $2.9 Million	62,310 Added 6.48%	1,023,393 $41.6 Million
Q4 2022 Feb 14, 2023	BUY	$35.49 - $56.15 $9.23 Million - $14.6 Million	260,200 Added 37.12%	961,083 $43.2 Million
Q3 2022 Nov 14, 2022	BUY	$43.76 - $68.97 $14.2 Million - $22.4 Million	325,000 Added 86.46%	700,883 $33.5 Million
Q2 2022 Aug 15, 2022	BUY	$53.22 - $123.09 $18.4 Million - $42.6 Million	346,390 Added 1174.48%	375,883 $22.2 Million
Q1 2022 May 16, 2022	BUY	$101.89 - $150.09 $3.01 Million - $4.43 Million	29,493 New	29,493 $3.43 Million
Q3 2021 Nov 15, 2021	SELL	$93.51 - $129.4 $3.54 Million - $4.89 Million	-37,825 Closed	0 $0
Q2 2021 Aug 16, 2021	SELL	$77.0 - $100.19 $9.38 Million - $12.2 Million	-121,863 Reduced 76.31%	37,825 $3.68 Million
Q1 2021 May 17, 2021	BUY	$81.28 - $104.34 $7.77 Million - $9.97 Million	95,595 Added 149.15%	159,688 $14.1 Million
Q4 2020 Feb 16, 2021	SELL	$86.4 - $121.75 $7.62 Million - $10.7 Million	-88,200 Reduced 57.91%	64,093 $6.13 Million
Q3 2020 Nov 16, 2020	BUY	$95.43 - $116.09 $14.5 Million - $17.7 Million	152,293 New	152,293 $17.3 Million
Q2 2020 Aug 14, 2020	SELL	$60.05 - $98.92 $2.35 Million - $3.88 Million	-39,210 Closed	0 $0
Q1 2020 May 15, 2020	SELL	$47.37 - $90.04 $1.92 Million - $3.66 Million	-40,600 Reduced 50.87%	39,210 $2.52 Million
Q4 2019 Feb 14, 2020	SELL	$53.13 - $71.19 $4.87 Million - $6.53 Million	-91,700 Reduced 53.47%	79,810 $4.76 Million
Q3 2019 Nov 14, 2019	SELL	$57.11 - $73.3 $9.07 Million - $11.6 Million	-158,766 Reduced 48.07%	171,510 $10.1 Million
Q2 2019 Aug 14, 2019	SELL	$54.41 - $71.7 $32.5 Million - $42.8 Million	-597,296 Reduced 64.39%	330,276 $21.3 Million
Q1 2019 May 15, 2019	BUY	$32.25 - $73.56 $4.11 Million - $9.37 Million	127,400 Added 15.92%	927,572 $58.9 Million
Q4 2018 Feb 14, 2019	SELL	$28.45 - $40.65 $2.75 Million - $3.93 Million	-96,631 Reduced 10.78%	800,172 $30.4 Million
Q3 2018 Nov 14, 2018	BUY	$21.39 - $51.17 $17.2 Million - $41.1 Million	802,831 Added 854.33%	896,803 $38.4 Million
Q2 2018 Aug 14, 2018	BUY	$4.9 - $23.64 $460,462 - $2.22 Million	93,972 New	93,972 $2.07 Million

Others Institutions Holding TNDM

# of Institutions

301

Shares Held

81.1M

Call Options Held

2.87M

Put Options Held

134K

View Full List

About TANDEM DIABETES CARE INC

Ticker TNDM
Exchange NASDAQ
Sector Healthcare
Industry Medical Devices
Shares Outstandng 64,221,200
Market Cap $982M
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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