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WELLINGTON MANAGEMENT GROUP LLP

Position in TNDM — Tandem Diabetes Care Inc

CIK 902219 Boston, MA

Position in TNDM

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$19,989,784
+$17,828,953 QoQ
Shares Held
1,042,764
+960.7% QoQ
Ownership
1.52%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 0% Shared 79% None 21%

Common Shares in TNDM Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $10,802,033,266 across 28 Medical Devices names. TNDM ranks #15 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in TNDM

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13 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $19,989,784 1,042,764
2025-12-31 $2,160,831 98,309
2022-09-30 $15,736,237 328,866
2022-06-30 $40,452,753 683,439
2022-03-31 $81,462,888 700,515
2021-12-31 $106,660,728 708,615
2021-09-30 $54,752,322 458,639
2021-06-30 $54,648,899 561,077
2021-03-31 $48,355,616 547,939
2020-12-31 $216,661,041 2,264,434
2020-09-30 $411,953,356 3,629,545
2020-06-30 $617,046,930 6,237,838
2020-03-31 $436,809,211 6,788,022