David Shaw’s Tandem Diabetes Care TNDM Stock Holding History

David Shaw’s Portfolio TNDM Stock Details TNDM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-20,300	Closed	-$731K	–	4754
2024 Q4	$731K	Buy	+20,300	New	+$687K	﹤0.01%	3391
2023 Q1	–	Sell	-16,700	Closed	-$751K	–	4862
2022 Q4	$751K	Hold	16,700	–	–	﹤0.01%	3633
2022 Q3	$799K	Hold	16,700	–	–	﹤0.01%	3745
2022 Q2	$988K	Buy	+16,700	New	+$1.37M	﹤0.01%	3646
2021 Q1	–	Sell	-10,000	Closed	-$957K	–	4485
2020 Q4	$957K	Sell	10,000 -10,000	-50%	-$1.03M	﹤0.01%	3052
2020 Q3	$2.27M	Sell	20,000 -20,000	-50%	-$2.1M	﹤0.01%	2315
2020 Q2	$3.96M	Buy	+40,000	New	+$3.19M	﹤0.01%	1835
2020 Q1	–	Sell	-40,000	Closed	-$2.38M	–	4262
2019 Q4	$2.38M	Sell	40,000 -900	-2%	-$55.5K	﹤0.01%	2327
2019 Q3	$2.41M	Sell	40,900 -14,800	-27%	-$945K	﹤0.01%	2220
2019 Q2	$3.59M	Sell	55,700 -22,300	-29%	-$1.44M	﹤0.01%	1840
2019 Q1	$4.95M	Buy	78,000 +58,900	+308%	+$3.09M	0.01%	1557
2018 Q4	$725K	Buy	+19,100	New	+$674K	﹤0.01%	2874

Other funds holding TNDM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Sessa Capital New York $5.98B AUM 99.85% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

FLAM

First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

GKIM

GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

PIM

Paradice Investment Management Denver, Colorado $627M AUM 43.41% 1-Year Est. Return

Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

David Shaw's TNDM Position: Q2 2026 in Review

David Shaw reduced its Tandem Diabetes Care (TNDM) stake by 13% in Q2 2026, selling an estimated $1.78M and leaving 681,808 shares worth $10.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1786.

David Shaw first reported a position in TNDM in Q2 2015 and has held it in 34 quarters since. The position peaked at $33M in Q1 2019. 272 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

David Shaw held 681,808 shares of Tandem Diabetes Care worth $10.3M as of Q2 2026.
David Shaw sold 102,098 Tandem Diabetes Care shares in Q2 2026, an estimated $1.78M.
Tandem Diabetes Care made up ﹤0.01% of David Shaw's portfolio in Q2 2026, its #1786 holding.
David Shaw first reported a position in Tandem Diabetes Care in Q2 2015 and has held it in 34 quarters since.
David Shaw's Tandem Diabetes Care position peaked at $33M in Q1 2019.
272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.