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BEACONLIGHT CAPITAL, LLC

Position in TNDM — Tandem Diabetes Care Inc

CIK 1569537 New York, NY

Position in TNDM

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$4,866,822
+$3,870,421 QoQ
Shares Held
253,877
+374.9% QoQ
Ownership
0.370%
of shares outstanding
% of Portfolio
2.76%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2023
8 quarters on record

Common Shares in TNDM Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

BEACONLIGHT CAPITAL, LLC holds $11,587,855 across 3 Medical Devices names. TNDM ranks #1 (42.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TNDM
Tandem Diabetes Care Inc
This page
253,877 $4,866,822

All Filings in TNDM

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8 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,866,822 253,877
2025-06-30 $996,401 53,455
2025-03-31 $4,210,544 219,757
2024-12-31 $11,930,148 331,209
2024-09-30 $9,144,232 215,615
2024-06-30 $4,887,096 121,298
2024-03-31 $8,752,856 247,186
2023-12-31 $1,961,952 66,327