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Calamos Advisors LLC

Position in ABT — Abbott Laboratories

CIK 1316507 NAPERVILLE, IL

Position in ABT

as of Mar 31, 2026 · filed May 4, 2026
Position Value
$38,888,726
-$23,967,137 QoQ
Shares Held
378,774
-24.5% QoQ
Ownership
0.022%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 99% Shared 0% None 1%

Common Shares in ABT Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

Calamos Advisors LLC holds $249,655,686 across 14 Medical Devices names. ABT ranks #4 (15.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 ABT
Abbott Laboratories
This page
378,774 $38,888,726

All Filings in ABT

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $38,888,726 378,774
2025-12-31 $62,855,863 501,683
2025-09-30 $68,379,450 510,523
2025-06-30 $69,274,789 509,336
2025-03-31 $64,073,398 483,026
2024-12-31 $38,717,892 342,303
2024-09-30 $38,978,422 341,886
2024-06-30 $36,066,849 347,097
2024-03-31 $40,459,777 355,972
2023-12-31 $39,874,838 362,268
2023-09-30 $35,383,856 365,347
2023-06-30 $39,775,619 364,847
2023-03-31 $50,971,651 503,374
2022-12-31 $59,053,186 537,874
2022-09-30 $57,396,096 593,180
2022-06-30 $64,406,959 592,793
2022-03-31 $65,829,228 556,178
2021-12-31 $71,519,986 508,171
2021-09-30 $58,598,622 496,052
2021-06-30 $48,020,060 414,216
2021-03-31 $42,160,550 351,807
2020-12-31 $37,802,079 345,256
2020-09-30 $38,559,992 354,314
2020-06-30 $34,114,727 373,124
2020-03-31 $30,607,452 387,878