Calamos Advisors LLC reports 40.73% increase in ownership of CAT / Caterpillar Inc.

캐터필러 주식회사

MX ˙ BMV ˙ US1491231015

Security	MX:CAT / Caterpillar Inc.
Institution	Calamos Advisors LLC
Latest Disclosed Ownership	134,683 shares
Latest Disclosed Value	$ 95,417,515

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 134,683 shares of Caterpillar Inc. (MX:CAT) valued at $95,417,515 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 95,705 shares of Caterpillar Inc.. This represents a change in shares of 40.73% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-04	2026-03-31	13F	CATERPILLAR	COM	149123101	134,683	38,978	40.73	95,418	74.04	0.3365
2026-01-29	2025-12-31	13F	CATERPILLAR	COM	149123101	95,705	-3,817	-3.84	54,827	15.46	0.2059
2025-10-20	2025-09-30	13F	CATERPILLAR	COM	149123101	99,522	-43,753	-30.54	47,487	-14.62	0.1754
2025-08-08	2025-06-30	13F	CATERPILLAR	COM	149123101	143,275	6	0.00	55,621	17.71	0.2189
2025-04-29	2025-03-31	13F	CATERPILLAR	COM	149123101	143,269	1,635	1.15	47,250	-8.04	0.2057
2025-01-24	2024-12-31	13F	CATERPILLAR	COM	149123101	141,634	0	0.00	51,379	-7.25	0.2149
2024-11-07	2024-09-30	13F	CATERPILLAR	COM	149123101	141,634	-3,525	-2.43	55,396	14.57	0.2395
2024-07-25	2024-06-30	13F	CATERPILLAR	COM	149123101	145,159	-5,297	-3.52	48,352	-12.30	0.2148
2024-05-08	2024-03-31	13F	CATERPILLAR	COM	149123101	150,456	-3,783	-2.45	55,132	20.89	0.2612
2024-01-31	2023-12-31	13F	CATERPILLAR	COM	149123101	154,239	-2,014	-1.29	45,604	6.91	0.2212
2023-10-26	2023-09-30	13F	CATERPILLAR	COM	149123101	156,253	0	0.00	42,657	10.95	0.2216
2023-07-28	2023-06-30	13F	CATERPILLAR	COM	149123101	156,253	0	0.00	38,446	7.52	0.1902
2023-05-04	2023-03-31	13F	CATERPILLAR	COM	149123101	156,253	-19,528	-11.11	35,757	-15.09	0.1746
2023-01-26	2022-12-31	13F	CATERPILLAR	COM	149123101	175,781	-31,069	-15.02	42,110	24.07	0.1976
2022-10-24	2022-09-30	13F	CATERPILLAR	COM	149123101	206,850	-61	-0.03	33,940	-8.24	0.1552
2022-08-01	2022-06-30	13F	CATERPILLAR	COM	149123101	206,911	5,540	2.75	36,987	-17.57	0.1595
2022-05-03	2022-03-31	13F	CATERPILLAR	COM	149123101	201,371	26,864	15.39	44,869	24.37	0.1684
2022-02-01	2021-12-31	13F	CATERPILLAR	COM	149123101	174,507	-46,161	-20.92	36,078	-14.83	0.1349
2021-10-26	2021-09-30	13F	CATERPILLAR	COM	149123101	220,668	11,993	5.75	42,362	-6.72	0.1850
2021-07-22	2021-06-30	13F	CATERPILLAR	COM	149123101	208,675	12,336	6.28	45,414	-0.24	0.2075
2021-04-12	2021-03-31	13F	CATERPILLAR	COM	149123101	196,339	10,896	5.88	45,525	34.87	0.2484
2021-01-27	2020-12-31	13F	CATERPILLAR	COM	149123101	185,443	3,326	1.83	33,754	24.26	0.1959
2020-10-26	2020-09-30	13F	CATERPILLAR INC DEL	COM	149123101	182,117	43,808	31.67	27,163	55.25	0.1748
2020-07-27	2020-06-30	13F	CATERPILLAR INC DEL	COM	149123101	138,309	-8,784	-5.97	17,496	2.50	0.1237
2020-04-28	2020-03-31	13F	CATERPILLAR INC DEL	COM	149123101	147,093	-12,964	-8.10	17,069	-27.79	0.1339
2020-01-15	2019-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	160,057	-185,982	-53.75	23,637	-45.92	0.1169
2019-10-21	2019-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	346,039	13,785	4.15	43,708	-3.48	0.2381
2019-08-07	2019-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	332,254	7,323	2.25	45,283	2.86	0.2514
2019-04-12	2019-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	324,931	-30,357	-8.54	44,025	-2.48	0.2747
2019-01-24	2018-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	355,288	64,665	22.25	45,146	1.87	0.2980
2018-10-22	2018-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	290,623	13,250	4.78	44,317	17.77	0.2438
2018-07-17	2018-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	277,373	33,256	13.62	37,631	4.59	0.2300
2018-04-13	2018-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	244,117	-42,507	-14.83	35,978	-20.34	0.2341
2018-02-13	2017-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	286,624	-2,079	-0.72	45,166	25.45	0.2302
2017-10-25	2017-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	288,703	-6,659	-2.25	36,004	13.43	0.2784
2017-08-09	2017-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	295,362	1,903	0.65	31,740	16.60	0.2346
2017-04-20	2017-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	293,459	226,044	335.30	27,221	335.40	0.2143
2017-02-06	2016-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	67,415	586	0.88	6,252	5.39	0.0497
2016-11-14	2016-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	66,829	66	0.10	5,932	17.21	0.0424
2016-07-26	2016-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	66,763	25	0.04	5,061	-0.92	0.0355
2016-04-25	2016-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	66,738	1,404	2.15	5,108	15.05	0.0339
2016-02-05	2015-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	65,334	-2,340	-3.46	4,440	0.38	0.0282
2015-11-10	2015-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	67,674	21	0.03	4,423	-22.92	0.0305
2015-08-14	2015-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	67,653	-3,529	-4.96	5,738	0.72	0.0354
2015-05-13	2015-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	71,182	5,139	7.78	5,697	-5.76	0.0357
2015-02-13	2014-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	66,043	343	0.52	6,045	-7.09	0.0400
2014-11-14	2014-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	65,700	0	0.00	6,506	-8.88	0.0434
2014-08-14	2014-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	65,700	4,700	7.70	7,140	17.78	0.0453
2014-05-16	2014-03-31	13F	CATERPILLAR	COMMON STOCK	149123101	61,000	-24,885	-28.97	6,062	-22.27	0.0387
2014-02-14	2013-12-31	13F	CATERPILLAR	COMMON STOCK	149123101	85,885	-673,250	-88.69	7,799	-87.68	0.0496
2013-11-14	2013-09-30	13F	CATERPILLAR	COMMON STOCK	149123101	759,135	-43,770	-5.45	63,289	-4.44	0.3970
2013-08-12	2013-06-30	13F	CATERPILLAR	COMMON STOCK	149123101	802,905	802,905		66,232		0.4328

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.