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Equibles

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in TNDM — Tandem Diabetes Care Inc

CIK 1164508 BOSTON, MA
Back to TNDM Full portfolio

Position in TNDM

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$10,075,427
+$6,364,959 QoQ
Shares Held
667,689
+245.0% QoQ
Ownership
0.960%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#28
of 274 holders
Holding Since
Dec 2020
8 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TNDM Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $6,436,102,900 across 46 Medical Devices names. TNDM ranks #23 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 SYK
Stryker Corp
 3,282,207 $1,033,370,051
2 MDT
Medtronic plc
 12,892,710 $1,008,596,703
3 BSX
Boston Scientific Corp
 23,293,913 $994,184,206
4 ABT
Abbott Laboratories
 10,897,178 $988,809,931
5 EW
Edwards Lifesciences Corp
 5,677,344 $513,572,538
6 DXCM
Dexcom Inc
 6,873,273 $462,914,936
7 PEN
Penumbra Inc
 834,903 $263,620,622
8 STE
STERIS plc
 1,217,864 $256,445,622

All Filings in TNDM

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8 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $10,075,427 667,689
2026-03-31 $3,710,468 193,556
2025-12-31 $2,983,850 135,753
2025-06-30 $231,341 12,411
2022-06-30 $6,623,301 111,899
2022-03-31 $1,103,708 9,491
2021-03-31 $8,662,796 98,162
2020-12-31 $11,011,237 115,084