Calamos Advisors LLC

Position in MSFT — Microsoft Corp

CIK 1316507 NAPERVILLE, IL

Back to MSFT Full portfolio

Position in MSFT

as of Jun 30, 2026 · filed Jul 31, 2026 Compact

Position Value

$762,840,074

-$116,501,352 QoQ

Shares Held

2,045,038

-13.9% QoQ

Ownership

0.028%

of shares outstanding

% of Portfolio

4.34%

of 13F equity value

Holder Rank

#241

of 6,179 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MSFT Over Time

Shares Held

Position Value (USD)

Derivatives in MSFT

reported options exposure · as of Jun 30, 2026

CallValue

$23,425,656

CallShares

62,800

PutValue

PutShares

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Software - Infrastructure

Technology · as of Jun 30, 2026

Calamos Advisors LLC holds $1,094,579,805 across 12 Software - Infrastructure names. MSFT ranks #1 (69.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MSFT	Microsoft Corp This page	2,045,038	$762,840,074
2	PANW	Palo Alto Networks Inc	245,320	$83,659,026
3	PLTR	Palantir Technologies Inc.	664,009	$77,469,930
4	ORCL	Oracle Corp	432,846	$63,433,581
5	CRWD	CrowdStrike Holdings, Inc.	217,880	$41,568,235
6	SNPS	Synopsys Inc	57,294	$25,557,134
7	MDB	MongoDB, Inc.	48,594	$16,322,724
8	NTAP	NetApp, Inc.	67,922	$10,511,608

All Filings in MSFT

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38 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$762,840,074	2,045,038	-13.9%	Shares	Sole	2026-07-31
2026-06-30	$23,425,656	62,800	+13.4%	Call	Sole	2026-07-31
2026-03-31	$879,341,426	2,375,507	+11.6%	Shares	Sole	2026-05-04
2026-03-31	$20,507,418	55,400	+122.5%	Call	Sole	2026-05-04
2025-12-31	$12,042,138	24,900	-82.5%	Call	Sole	2026-01-29
2025-12-31	$1,029,263,781	2,128,249	-3.1%	Shares	Sole	2026-01-29
2025-09-30	$1,138,059,940	2,197,239	-1.5%	Shares	Sole	2025-10-20
2025-09-30	$73,600,695	142,100	+6359.1%	Call	Sole	2025-10-20
2025-06-30	$1,094,302	2,200	+46.7%	Call	Sole	2025-08-08
2025-06-30	$1,110,038,062	2,231,636	-3.0%	Shares	Sole	2025-08-08
2025-03-31	$563,085	1,500	+150.0%	Call	Sole	2025-04-29
2025-03-31	$863,991,242	2,301,583	-0.7%	Shares	Sole	2025-04-29
2024-12-31	$252,900	600	-98.6%	Call	Sole	2025-01-24
2024-12-31	$976,969,981	2,317,841	-1.7%	Shares	Sole	2025-01-24
2024-12-31	$15,384,750	36,500	+102.8%	Put	Sole	2025-01-24
2024-09-30	$1,014,495,504	2,357,647	-4.7%	Shares	Sole	2024-11-07
2024-06-30	$8,045,100	18,000	—	Put	Sole	2024-07-25
2024-06-30	$1,105,254,609	2,472,882	-1.9%	Shares	Sole	2024-07-25
2024-03-31	$1,060,719,264	2,521,200	-1.9%	Shares	Sole	2024-05-08
2023-12-31	$966,331,422	2,569,757	-1.1%	Shares	Sole	2024-01-31
2023-12-31	$15,718,472	41,800	-21.9%	Call	Sole	2024-01-31
2023-09-30	$16,892,625	53,500	+24.4%	Call	Sole	2023-10-26
2023-09-30	$820,768,759	2,599,426	+0.7%	Shares	Sole	2023-10-26
2023-06-30	$879,304,588	2,582,089	-4.8%	Shares	Sole	2023-07-28
2023-03-31	$782,077,176	2,712,720	-10.4%	Shares	Sole	2023-05-04
2022-12-31	$725,697,478	3,026,009	-10.1%	Shares	Sole	2023-01-26
2022-09-30	$10,014,700	43,000	—	Call	Sole	2022-10-24
2022-09-30	$783,859,652	3,365,649	-0.2%	Shares	Sole	2022-10-24
2022-06-30	$865,741,055	3,370,872	+1.0%	Shares	Sole	2022-08-01
2022-03-31	$1,028,883,191	3,337,171	+8.4%	Shares	Sole	2022-05-03
2021-12-31	$1,035,602,597	3,079,218	+2.4%	Shares	Sole	2022-02-01
2021-09-30	$847,467,307	3,006,056	+5.0%	Shares	Sole	2021-10-26
2021-06-30	$775,467,233	2,862,559	+14.3%	Shares	Sole	2021-07-22
2021-03-31	$590,227,089	2,503,402	+2.8%	Shares	Sole	2021-04-12
2020-12-31	$541,613,162	2,435,092	-3.9%	Shares	Sole	2021-01-27
2020-09-30	$533,108,096	2,534,627	-5.8%	Shares	Sole	2020-10-26
2020-06-30	$547,705,241	2,691,294	-0.9%	Shares	Sole	2020-07-27
2020-03-31	$428,220,184	2,715,238	—	Shares	Sole	2020-04-28
No filing history on record for this holder in this stock.