Position in DGX
as of Mar 31, 2026
· filed May 4, 2026
Position Value
$8,526,305
-$440,169 QoQ
Shares Held
43,506
-33.1% QoQ
Ownership
0.039%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
17 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in DGX Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026Calamos Advisors LLC holds $195,948,990 across 11 Diagnostics & Research names. DGX ranks #6 (4.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
139,230 | $68,435,721 | |
| 2 | DHR |
Danaher Corp /De/
|
288,363 | $54,673,624 | |
| 3 | IQV |
Iqvia Holdings Inc.
|
145,688 | $24,845,631 | |
| 4 | A |
Agilent Technologies, Inc.
|
163,570 | $18,643,708 | |
| 5 | LH |
Labcorp Holdings Inc.
|
43,515 | $11,610,237 | |
| 6 | DGX |
Quest Diagnostics Inc
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|
43,506 | $8,526,305 | |
| 7 | GH |
Guardant Health, Inc.
|
50,668 | $4,680,203 | |
| 8 | WAT |
Waters Corp /De/
|
8,061 | $2,400,565 |
All Filings in DGX
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $8,526,305 | 43,506 | Shares | Sole | 2026-05-04 | |
| 2023-12-31 | $8,966,474 | 65,031 | Shares | Sole | 2024-01-31 | |
| 2023-09-30 | $8,028,136 | 65,880 | Shares | Sole | 2023-10-26 | |
| 2023-06-30 | $9,260,092 | 65,880 | Shares | Sole | 2023-07-28 | |
| 2023-03-31 | $9,320,702 | 65,880 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $11,594,550 | 74,115 | Shares | Sole | 2023-01-26 | |
| 2022-09-30 | $10,700,899 | 87,219 | Shares | Sole | 2022-10-24 | |
| 2022-06-30 | $11,598,382 | 87,219 | Shares | Sole | 2022-08-01 | |
| 2022-03-31 | $11,615,581 | 84,872 | Shares | Sole | 2022-05-03 | |
| 2021-12-31 | $12,726,615 | 73,560 | Shares | Sole | 2022-02-01 | |
| 2021-09-30 | $10,275,160 | 70,712 | Shares | Sole | 2021-10-26 | |
| 2021-06-30 | $8,508,501 | 64,473 | Shares | Sole | 2021-07-22 | |
| 2021-03-31 | $6,392,615 | 49,810 | Shares | Sole | 2021-04-12 | |
| 2020-12-31 | $5,752,455 | 48,271 | Shares | Sole | 2021-01-27 | |
| 2020-09-30 | $5,765,830 | 50,361 | Shares | Sole | 2020-10-26 | |
| 2020-06-30 | $6,242,842 | 54,781 | Shares | Sole | 2020-07-27 | |
| 2020-03-31 | $4,688,395 | 58,386 | Shares | Sole | 2020-04-28 | |
| No filing history on record for this holder in this stock. | ||||||