Israel Englander’s Tandem Diabetes Care TNDM Stock Holding History

Israel Englander’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	-10,000	Closed	-$360K	–	6400
2024 Q4	$360K	Hold	10,000	–	–	﹤0.01%	4966
2024 Q3	$424K	Sell	10,000 -30,000	-75%	-$1.27M	﹤0.01%	4956
2024 Q2	$1.61M	Buy	+40,000	New	+$1.67M	﹤0.01%	3721
2023 Q4	–	Sell	-80,000	Closed	-$1.66M	–	6538
2023 Q3	$1.66M	Buy	80,000 +60,000	+300%	+$1.65M	﹤0.01%	3733
2023 Q2	$491K	Buy	+20,000	New	+$643K	﹤0.01%	4563
2021 Q4	–	Sell	-10,000	Closed	-$1.19M	–	7379
2021 Q3	$1.19M	Hold	10,000	–	–	﹤0.01%	4487
2021 Q2	$974K	Sell	10,000 -10,000	-50%	-$892K	﹤0.01%	4693
2021 Q1	$1.76M	Buy	20,000 +10,000	+100%	+$929K	﹤0.01%	3653
2020 Q4	$957K	Buy	+10,000	New	+$1.03M	﹤0.01%	3770

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

Israel Englander's TNDM Position: Q2 2026 in Review

Israel Englander increased its Tandem Diabetes Care (TNDM) stake by 72% in Q2 2026, buying an estimated $9.61M and bringing the position to 1,311,739 shares worth $19.8M. The position accounts for 0.01% of the portfolio, ranked #1635.

Israel Englander first reported a position in TNDM in Q4 2013 and has held it in 47 quarters since. The position peaked at $75.4M in Q2 2020. 272 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

Israel Englander held 1,311,739 shares of Tandem Diabetes Care worth $19.8M as of Q2 2026.
Israel Englander bought 550,067 Tandem Diabetes Care shares in Q2 2026, an estimated $9.61M.
Tandem Diabetes Care made up 0.01% of Israel Englander's portfolio in Q2 2026, its #1635 holding.
Israel Englander first reported a position in Tandem Diabetes Care in Q4 2013 and has held it in 47 quarters since.
Israel Englander's Tandem Diabetes Care position peaked at $75.4M in Q2 2020.
272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.