GATX US Equity

GATX CORP

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Industrials · Transportation Services · CIK 40211 · FYE 1231

$181.62

-4.18 (-2.25%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding GATX · 2026-Q1 methodology → sources →

392 holders

% of shares outstanding held

99.6%

Shares held (13F)

35,352,546

Reporting holders

392

Top holders

largest 100 of 392 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	STATE FARM MUTUAL AUTOMOBILE INSURANCE CO	5,427,3385.4M	$927M	15.29%	—
2	BlackRock, Inc.	4,493,4844.5M	$767M	12.66%	ADD 3%
3	EARNEST PARTNERS LLC	2,615,2312.6M	$447M	7.37%	TRIM -3%
4	VANGUARD PORTFOLIO MANAGEMENT LLC	2,015,4522.0M	$344M	5.68%	NEW†
5	VANGUARD CAPITAL MANAGEMENT LLC	1,579,4561.6M	$270M	4.45%	NEW†
6	DIMENSIONAL FUND ADVISORS LP	1,470,4831.5M	$251M	4.14%	—
7	STATE STREET CORP	1,320,0261.3M	$225M	3.72%	ADD 3%
8	AMERICAN CENTURY COMPANIES INC	1,261,3701.3M	$215M	3.55%	—
9	GAMCO INVESTORS, INC. ET AL	1,100,9731.1M	$188M	3.10%	TRIM -8%
10	BANK OF AMERICA CORP /DE/	1,005,4191.0M	$172M	2.83%	—
11	GEODE CAPITAL MANAGEMENT, LLC	915,380915,380	$156M	2.58%	ADD 3%
12	GABELLI FUNDS LLC	845,450845,450	$144M	2.38%	TRIM -7%
13	WELLINGTON MANAGEMENT GROUP LLP	842,932842,932	$144M	2.37%	TRIM -17%
14	SEI INVESTMENTS CO	764,042764,042	$130M	2.15%	—
15	NORTHERN TRUST CORP	608,922608,922	$104M	1.72%	—
16	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	597,545597,545	$102M	1.68%	ADD 23%
17	ALLIANCEBERNSTEIN L.P.	580,189580,189	$98M	1.63%	TRIM -5%
18	FMR LLC	547,679547,679	$94M	1.54%	ADD 60%
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	424,741424,741	$73M	1.20%	—
20	MORGAN STANLEY	315,820315,820	$54M	0.89%	ADD 3%
21	Ensign Peak Advisors, Inc	311,956311,956	$53M	0.88%	TRIM -22%
22	Bank of New York Mellon Corp	298,194298,194	$51M	0.84%	—
23	NATIXIS ADVISORS, LLC	282,556282,556	$48M	0.80%	ADD 9%
24	VANGUARD FIDUCIARY TRUST CO	232,783232,783	$40M	0.66%	NEW
25	AMERIPRISE FINANCIAL INC	223,075223,075	$38M	0.63%	—
26	GOLDMAN SACHS GROUP INC	206,925206,925	$35M	0.58%	TRIM -17%
27	TUDOR INVESTMENT CORP ET AL	181,928181,928	$31M	0.51%	ADD 53%
28	ProShare Advisors LLC	180,520180,520	$31M	0.51%	ADD 316%
29	NEW YORK STATE COMMON RETIREMENT FUND	178,703178,703	$31M	0.50%	—
30	ENVESTNET ASSET MANAGEMENT INC	178,331178,331	$30M	0.50%	ADD 6%
31	JONES FINANCIAL COMPANIES LLLP	172,785172,785	$29M	0.49%	ADD 61389%
32	JPMORGAN CHASE & CO	163,532163,532	$27M	0.46%	TRIM -13%
33	JANUS HENDERSON GROUP PLC	143,133143,133	$24M	0.40%	—
34	EULAV Asset Management	137,151137,151	$23M	0.39%	ADD 37%
35	Walleye Capital LLC	131,764131,764	$22M	0.37%	TRIM -10%
36	WELLS FARGO & COMPANY/MN	127,774127,774	$22M	0.36%	TRIM -17%
37	UBS Group AG	120,672120,672	$21M	0.34%	ADD 8%
38	RHUMBLINE ADVISERS	108,152108,152	$18M	0.30%	—
39	LOOMIS SAYLES & CO L P	106,845106,845	$18M	0.30%	ADD 62%
40	Nuveen, LLC	106,647106,647	$18M	0.30%	ADD 7%
41	Invesco Ltd.	102,321102,321	$17M	0.29%	TRIM -8%
42	Retirement Systems of Alabama	92,54692,546	$16M	0.26%	—
43	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,51089,510	$15M	0.25%	ADD 5%
44	Harbor Island Capital LLC	83,39683,396	$14M	0.23%	—
45	PRINCIPAL FINANCIAL GROUP INC	80,32880,328	$14M	0.23%	ADD 4%
46	FIRST TRUST ADVISORS LP	69,23469,234	$12M	0.20%	ADD 118%
47	Clearbridge Investments, LLC	67,59667,596	$12M	0.19%	TRIM -16%
48	Swiss National Bank	67,10067,100	$11M	0.19%	—
49	California Public Employees Retirement System	53,73853,738	$9M	0.15%	ADD 4%
50	Philadelphia Financial Management of San Francisco, LLC	50,81150,811	$9M	0.14%	TRIM -26%
51	Legal & General Group Plc	48,12048,120	$8M	0.14%	TRIM -8%
52	WINSLOW ASSET MANAGEMENT INC	46,69846,698	$8M	0.13%	TRIM -3%
53	Hodges Capital Management Inc.	43,25043,250	$7M	0.12%	NEW
54	Qube Research & Technologies Ltd	43,08543,085	$7M	0.12%	ADD 3243%
55	CITADEL ADVISORS LLC	41,87341,873	$7M	0.12%	ADD 1566%
56	PRICE T ROWE ASSOCIATES INC /MD/	40,90740,907	$7M	0.12%	ADD 18%
57	Dana Investment Advisors, Inc.	39,58139,581	$7M	0.11%	TRIM -9%
58	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	37,58737,587	$6M	0.11%	ADD 17%
59	Community Bank of Raymore	36,99836,998	$6M	0.10%	—
60	MetLife Investment Management, LLC	36,41336,413	$6M	0.10%	—
61	LEVEL FOUR ADVISORY SERVICES, LLC	35,70235,702	$6M	0.10%	—
62	OPPENHEIMER ASSET MANAGEMENT INC.	35,48135,481	$6M	0.10%	—
63	PEREGRINE CAPITAL MANAGEMENT LLC	34,28634,286	$6M	0.10%	TRIM -9%
64	Creative Planning	33,44733,447	$6M	0.09%	ADD 4%
65	RAYMOND JAMES FINANCIAL INC	33,27633,276	$6M	0.09%	ADD 8%
66	MANUFACTURERS LIFE INSURANCE COMPANY, THE	32,79732,797	$6M	0.09%	TRIM -5%
67	DEUTSCHE BANK AG\	31,99831,998	$5M	0.09%	ADD 12%
68	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	31,47531,475	$5M	0.09%	TRIM -17%
69	D. E. Shaw & Co., Inc.	29,71829,718	$5M	0.08%	ADD 250%
70	FIFTH THIRD BANCORP	29,63829,638	$5M	0.08%	ADD 78%
71	Allianz Asset Management GmbH	27,13127,131	$5M	0.08%	ADD 7%
72	Goelzer Investment Management, Inc.	26,21026,210	$4M	0.07%	—
73	VANGUARD ASSET MANAGEMENT, Ltd	25,07925,079	$4M	0.07%	NEW
74	BARCLAYS PLC	24,86424,864	$4M	0.07%	TRIM -70%
75	GUGGENHEIM CAPITAL LLC	24,27824,278	$4M	0.07%	TRIM -17%
76	RICE HALL JAMES & ASSOCIATES, LLC	23,89023,890	$4M	0.07%	—
77	AQR CAPITAL MANAGEMENT LLC	23,77123,771	$4M	0.07%	ADD 15%
78	US BANCORP \DE\	23,12923,129	$4M	0.07%	TRIM -2%
79	Allspring Global Investments Holdings, LLC	22,75322,753	$4M	0.06%	TRIM -21%
80	Connor, Clark & Lunn Investment Management Ltd.	22,72722,727	$4M	0.06%	—
81	Nicholas Investment Partners, LP	22,60122,601	$4M	0.06%	—
82	Squarepoint Ops LLC	22,52322,523	$4M	0.06%	TRIM -86%
83	INTECH INVESTMENT MANAGEMENT LLC	21,48421,484	$4M	0.06%	ADD 77%
84	CANADA LIFE ASSURANCE Co	21,09421,094	$4M	0.06%	ADD 2%
85	Campbell & CO Investment Adviser LLC	20,73220,732	$4M	0.06%	ADD 35%
86	TWO SIGMA INVESTMENTS, LP	20,67520,675	$4M	0.06%	TRIM -39%
87	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	20,60420,604	$4M	0.06%	ADD 3%
88	BANK OF MONTREAL /CAN/	16,71916,719	$3M	0.05%	TRIM -8%
89	North Star Investment Management Corp.	16,02216,022	$3M	0.05%	—
90	SUSQUEHANNA INTERNATIONAL GROUP, LLP	15,94415,944	$3M	0.04%	TRIM -3%
91	AMALGAMATED BANK	15,44115,441	$3M	0.04%	ADD 3%
92	REGIONS FINANCIAL CORP	15,37815,378	$3M	0.04%	TRIM -10%
93	Quantinno Capital Management LP	15,37715,377	$3M	0.04%	ADD 112%
94	Oliver Luxxe Assets LLC	15,33815,338	$3M	0.04%	TRIM -3%
95	Susquehanna Portfolio Strategies, LLC	15,26515,265	$3M	0.04%	—
96	NFJ INVESTMENT GROUP, LLC	15,11515,115	$3M	0.04%	—
97	New Age Alpha Advisors, LLC	14,97314,973	$3M	0.04%	TRIM -4%
98	Vanguard Global Advisers, LLC	14,81514,815	$3M	0.04%	NEW
99	LPL Financial LLC	13,80813,808	$2M	0.04%	—
100	MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC	13,68113,681	$2M	0.04%	TRIM -8%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

STATE FARM MUTUAL AUTOMOBILE INSURANCE CO

5.6M

5.4M

$927M

BlackRock, Inc.

4.5M

4.4M

4.5M

$767M

EARNEST PARTNERS LLC

3.1M

3.0M

2.7M

2.6M

$447M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

2.0M

$344M

VANGUARD CAPITAL MANAGEMENT LLC

—

1.6M

$270M

DIMENSIONAL FUND ADVISORS LP

2.0M

1.8M

1.6M

1.5M

$251M

STATE STREET CORP

1.3M

$225M

AMERICAN CENTURY COMPANIES INC

1.1M

1.3M

$215M

GAMCO INVESTORS, INC. ET AL

1.3M

1.2M

1.1M

$188M

BANK OF AMERICA CORP /DE/

1.2M

998K

1.0M

$172M

GEODE CAPITAL MANAGEMENT, LLC

844K

873K

879K

882K

886K

915K

$156M

GABELLI FUNDS LLC

1.0M

987K

965K

927K

914K

845K

$144M

WELLINGTON MANAGEMENT GROUP LLP

1.0M

843K

$144M

SEI INVESTMENTS CO

903K

904K

924K

950K

769K

764K

$130M

NORTHERN TRUST CORP

701K

680K

657K

635K

599K

609K

$104M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding divides each quarter's as-filed 13F shares by the SEC cover-page share count dated to that same quarter (split-adjusted), not by today's count — so splits and buybacks don't move the line.

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · GATX

Activists — 13D, active intent

GAMCO INVESTORS, INC. ET AL3.1%▼ -0.6ppSCHEDULE 13D/A · Amd 14 · event 2026-03-31SEC →

1,100,598 shares · 8 reporting persons

“The Reporting Persons file the long form Schedule 13D pursuant to Section 13d-1 of the Securities Exchange Act of 1934 (the "Act") even though they may be technically eligible to file the short form Schedule G. Because the Reporting Persons may regularly communicate with the Issuer's management, filing the Schedule 13D ensures that these conversations are compliant with the reporting obligations under the Exchange Act.”

Large holders — 13G, passive (top 5 of 6 by % of class)

Holder

% of class

Type

As of

BlackRock, Inc.

11.5%

QII

2025-06-30

SEC →

EARNEST PARTNERS LLC

7.3%

QII

2026-03-31

SEC →

VANGUARD PORTFOLIO MANAGEMENT LLC

Institutional ownership· 13F filers holding GATX · 2026-Q1 methodology → sources →

392 holders

% of shares outstanding held

99.6%

Shares held (13F)

35,352,546

Reporting holders

392

Top holders

largest 100 of 392 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	STATE FARM MUTUAL AUTOMOBILE INSURANCE CO	5,427,3385.4M	$927M	15.29%	—
2	BlackRock, Inc.	4,493,4844.5M	$767M	12.66%	ADD 3%
3	EARNEST PARTNERS LLC	2,615,2312.6M	$447M	7.37%	TRIM -3%
4	VANGUARD PORTFOLIO MANAGEMENT LLC	2,015,4522.0M	$344M	5.68%	NEW†
5	VANGUARD CAPITAL MANAGEMENT LLC	1,579,4561.6M	$270M	4.45%	NEW†
6	DIMENSIONAL FUND ADVISORS LP	1,470,4831.5M	$251M	4.14%	—
7	STATE STREET CORP	1,320,0261.3M	$225M	3.72%	ADD 3%
8	AMERICAN CENTURY COMPANIES INC	1,261,3701.3M	$215M	3.55%	—
9	GAMCO INVESTORS, INC. ET AL	1,100,9731.1M	$188M	3.10%	TRIM -8%
10	BANK OF AMERICA CORP /DE/	1,005,4191.0M	$172M	2.83%	—
11	GEODE CAPITAL MANAGEMENT, LLC	915,380915,380	$156M	2.58%	ADD 3%
12	GABELLI FUNDS LLC	845,450845,450	$144M	2.38%	TRIM -7%
13	WELLINGTON MANAGEMENT GROUP LLP	842,932842,932	$144M	2.37%	TRIM -17%
14	SEI INVESTMENTS CO	764,042764,042	$130M	2.15%	—
15	NORTHERN TRUST CORP	608,922608,922	$104M	1.72%	—
16	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	597,545597,545	$102M	1.68%	ADD 23%
17	ALLIANCEBERNSTEIN L.P.	580,189580,189	$98M	1.63%	TRIM -5%
18	FMR LLC	547,679547,679	$94M	1.54%	ADD 60%
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	424,741424,741	$73M	1.20%	—
20	MORGAN STANLEY	315,820315,820	$54M	0.89%	ADD 3%
21	Ensign Peak Advisors, Inc	311,956311,956	$53M	0.88%	TRIM -22%
22	Bank of New York Mellon Corp	298,194298,194	$51M	0.84%	—
23	NATIXIS ADVISORS, LLC	282,556282,556	$48M	0.80%	ADD 9%
24	VANGUARD FIDUCIARY TRUST CO	232,783232,783	$40M	0.66%	NEW
25	AMERIPRISE FINANCIAL INC	223,075223,075	$38M	0.63%	—
26	GOLDMAN SACHS GROUP INC	206,925206,925	$35M	0.58%	TRIM -17%
27	TUDOR INVESTMENT CORP ET AL	181,928181,928	$31M	0.51%	ADD 53%
28	ProShare Advisors LLC	180,520180,520	$31M	0.51%	ADD 316%
29	NEW YORK STATE COMMON RETIREMENT FUND	178,703178,703	$31M	0.50%	—
30	ENVESTNET ASSET MANAGEMENT INC	178,331178,331	$30M	0.50%	ADD 6%
31	JONES FINANCIAL COMPANIES LLLP	172,785172,785	$29M	0.49%	ADD 61389%
32	JPMORGAN CHASE & CO	163,532163,532	$27M	0.46%	TRIM -13%
33	JANUS HENDERSON GROUP PLC	143,133143,133	$24M	0.40%	—
34	EULAV Asset Management	137,151137,151	$23M	0.39%	ADD 37%
35	Walleye Capital LLC	131,764131,764	$22M	0.37%	TRIM -10%
36	WELLS FARGO & COMPANY/MN	127,774127,774	$22M	0.36%	TRIM -17%
37	UBS Group AG	120,672120,672	$21M	0.34%	ADD 8%
38	RHUMBLINE ADVISERS	108,152108,152	$18M	0.30%	—
39	LOOMIS SAYLES & CO L P	106,845106,845	$18M	0.30%	ADD 62%
40	Nuveen, LLC	106,647106,647	$18M	0.30%	ADD 7%
41	Invesco Ltd.	102,321102,321	$17M	0.29%	TRIM -8%
42	Retirement Systems of Alabama	92,54692,546	$16M	0.26%	—
43	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,51089,510	$15M	0.25%	ADD 5%
44	Harbor Island Capital LLC	83,39683,396	$14M	0.23%	—
45	PRINCIPAL FINANCIAL GROUP INC	80,32880,328	$14M	0.23%	ADD 4%
46	FIRST TRUST ADVISORS LP	69,23469,234	$12M	0.20%	ADD 118%
47	Clearbridge Investments, LLC	67,59667,596	$12M	0.19%	TRIM -16%
48	Swiss National Bank	67,10067,100	$11M	0.19%	—
49	California Public Employees Retirement System	53,73853,738	$9M	0.15%	ADD 4%
50	Philadelphia Financial Management of San Francisco, LLC	50,81150,811	$9M	0.14%	TRIM -26%
51	Legal & General Group Plc	48,12048,120	$8M	0.14%	TRIM -8%
52	WINSLOW ASSET MANAGEMENT INC	46,69846,698	$8M	0.13%	TRIM -3%
53	Hodges Capital Management Inc.	43,25043,250	$7M	0.12%	NEW
54	Qube Research & Technologies Ltd	43,08543,085	$7M	0.12%	ADD 3243%
55	CITADEL ADVISORS LLC	41,87341,873	$7M	0.12%	ADD 1566%
56	PRICE T ROWE ASSOCIATES INC /MD/	40,90740,907	$7M	0.12%	ADD 18%
57	Dana Investment Advisors, Inc.	39,58139,581	$7M	0.11%	TRIM -9%
58	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	37,58737,587	$6M	0.11%	ADD 17%
59	Community Bank of Raymore	36,99836,998	$6M	0.10%	—
60	MetLife Investment Management, LLC	36,41336,413	$6M	0.10%	—
61	LEVEL FOUR ADVISORY SERVICES, LLC	35,70235,702	$6M	0.10%	—
62	OPPENHEIMER ASSET MANAGEMENT INC.	35,48135,481	$6M	0.10%	—
63	PEREGRINE CAPITAL MANAGEMENT LLC	34,28634,286	$6M	0.10%	TRIM -9%
64	Creative Planning	33,44733,447	$6M	0.09%	ADD 4%
65	RAYMOND JAMES FINANCIAL INC	33,27633,276	$6M	0.09%	ADD 8%
66	MANUFACTURERS LIFE INSURANCE COMPANY, THE	32,79732,797	$6M	0.09%	TRIM -5%
67	DEUTSCHE BANK AG\	31,99831,998	$5M	0.09%	ADD 12%
68	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	31,47531,475	$5M	0.09%	TRIM -17%
69	D. E. Shaw & Co., Inc.	29,71829,718	$5M	0.08%	ADD 250%
70	FIFTH THIRD BANCORP	29,63829,638	$5M	0.08%	ADD 78%
71	Allianz Asset Management GmbH	27,13127,131	$5M	0.08%	ADD 7%
72	Goelzer Investment Management, Inc.	26,21026,210	$4M	0.07%	—
73	VANGUARD ASSET MANAGEMENT, Ltd	25,07925,079	$4M	0.07%	NEW
74	BARCLAYS PLC	24,86424,864	$4M	0.07%	TRIM -70%
75	GUGGENHEIM CAPITAL LLC	24,27824,278	$4M	0.07%	TRIM -17%
76	RICE HALL JAMES & ASSOCIATES, LLC	23,89023,890	$4M	0.07%	—
77	AQR CAPITAL MANAGEMENT LLC	23,77123,771	$4M	0.07%	ADD 15%
78	US BANCORP \DE\	23,12923,129	$4M	0.07%	TRIM -2%
79	Allspring Global Investments Holdings, LLC	22,75322,753	$4M	0.06%	TRIM -21%
80	Connor, Clark & Lunn Investment Management Ltd.	22,72722,727	$4M	0.06%	—
81	Nicholas Investment Partners, LP	22,60122,601	$4M	0.06%	—
82	Squarepoint Ops LLC	22,52322,523	$4M	0.06%	TRIM -86%
83	INTECH INVESTMENT MANAGEMENT LLC	21,48421,484	$4M	0.06%	ADD 77%
84	CANADA LIFE ASSURANCE Co	21,09421,094	$4M	0.06%	ADD 2%
85	Campbell & CO Investment Adviser LLC	20,73220,732	$4M	0.06%	ADD 35%
86	TWO SIGMA INVESTMENTS, LP	20,67520,675	$4M	0.06%	TRIM -39%
87	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	20,60420,604	$4M	0.06%	ADD 3%
88	BANK OF MONTREAL /CAN/	16,71916,719	$3M	0.05%	TRIM -8%
89	North Star Investment Management Corp.	16,02216,022	$3M	0.05%	—
90	SUSQUEHANNA INTERNATIONAL GROUP, LLP	15,94415,944	$3M	0.04%	TRIM -3%
91	AMALGAMATED BANK	15,44115,441	$3M	0.04%	ADD 3%
92	REGIONS FINANCIAL CORP	15,37815,378	$3M	0.04%	TRIM -10%
93	Quantinno Capital Management LP	15,37715,377	$3M	0.04%	ADD 112%
94	Oliver Luxxe Assets LLC	15,33815,338	$3M	0.04%	TRIM -3%
95	Susquehanna Portfolio Strategies, LLC	15,26515,265	$3M	0.04%	—
96	NFJ INVESTMENT GROUP, LLC	15,11515,115	$3M	0.04%	—
97	New Age Alpha Advisors, LLC	14,97314,973	$3M	0.04%	TRIM -4%
98	Vanguard Global Advisers, LLC	14,81514,815	$3M	0.04%	NEW
99	LPL Financial LLC	13,80813,808	$2M	0.04%	—
100	MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC	13,68113,681	$2M	0.04%	TRIM -8%

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

STATE FARM MUTUAL AUTOMOBILE INSURANCE CO

5.6M

5.4M

$927M

BlackRock, Inc.

4.5M

4.4M

4.5M

$767M

EARNEST PARTNERS LLC

3.1M

3.0M

2.7M

2.6M

$447M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

2.0M

$344M

VANGUARD CAPITAL MANAGEMENT LLC

—

1.6M

$270M

DIMENSIONAL FUND ADVISORS LP

2.0M

1.8M

1.6M

1.5M

$251M

STATE STREET CORP

1.3M

$225M

AMERICAN CENTURY COMPANIES INC

1.1M

1.3M

$215M

GAMCO INVESTORS, INC. ET AL

1.3M

1.2M

1.1M

$188M

BANK OF AMERICA CORP /DE/

1.2M

998K

1.0M

$172M

GEODE CAPITAL MANAGEMENT, LLC

844K

873K

879K

882K

886K

915K

$156M

GABELLI FUNDS LLC

1.0M

987K

965K

927K

914K

845K

$144M

WELLINGTON MANAGEMENT GROUP LLP

1.0M

843K

$144M

SEI INVESTMENTS CO

903K

904K

924K

950K

769K

764K

$130M

NORTHERN TRUST CORP

701K

680K

657K

635K

599K

609K

$104M

Institutional footprint by quarter

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · GATX

Activists — 13D, active intent

GAMCO INVESTORS, INC. ET AL3.1%▼ -0.6ppSCHEDULE 13D/A · Amd 14 · event 2026-03-31SEC →

1,100,598 shares · 8 reporting persons

Large holders — 13G, passive (top 5 of 6 by % of class)

Holder

% of class

Type

As of

BlackRock, Inc.

11.5%

QII

2025-06-30

SEC →

EARNEST PARTNERS LLC

7.3%

QII

2026-03-31

SEC →

VANGUARD PORTFOLIO MANAGEMENT LLC

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	392	35,352,546	99.6%	$6.0B
2025-Q4	392	35,588,082	99.7%	$6.0B
2025-Q3	382	36,145,951	101.2%	$6.3B
2025-Q2	360	36,332,892	102.1%	$5.6B
2025-Q1	365	36,064,716	101.0%	$5.6B
2024-Q4	347	36,303,593	102.3%	$5.6B
2024-Q3	324	35,761,832	100.7%	$4.8B
2024-Q2	309	35,940,562	101.0%	$4.8B
2024-Q1	321	36,094,349	101.4%	$4.8B
2023-Q4	297	35,801,922	100.9%	$4.3B
2023-Q3	282	35,204,874	99.2%	$3.8B
2023-Q2	263	35,675,510	100.8%	$4.6B
2023-Q1	262	35,587,788	100.8%	$3.9B
2022-Q4	263	35,534,185	100.9%	$3.5B
2022-Q3	249	36,504,329	103.7%	$3.1B
2022-Q2	261	35,558,112	100.7%	$3.3B
2022-Q1	271	35,552,905	99.9%	$4.4B
2021-Q4	252	35,902,092	101.1%	$3.7B
2021-Q3	245	36,165,408	101.9%	$3.2B
2021-Q2	244	36,657,865	103.3%	$3.2B
2021-Q1	249	36,772,340	103.9%	$3.4B
2020-Q4	247	38,214,029	109.2%	$3.2B
2020-Q3	235	39,069,556	—	$2.5B
2020-Q2	248	38,773,171	—	$2.4B
2020-Q1	230	38,455,231	—	$2.4B
2019-Q4	250	38,727,225	—	$3.2B
2019-Q3	233	38,424,033	109.5%	$3.0B
2019-Q2	243	38,612,059	108.2%	$3.1B
2019-Q1	249	39,382,243	108.8%	$3.0B
2018-Q4	253	40,858,200	108.6%	$2.9B
2018-Q3	255	41,641,325	—	$3.6B
2018-Q2	247	42,499,680	—	$3.2B
2018-Q1	243	42,737,327	—	$2.9B
2017-Q4	241	43,461,033	—	$2.7B
2017-Q3	227	45,043,857	—	$2.8B
2017-Q2	223	45,175,869	—	$2.9B
2017-Q1	225	47,640,961	—	$2.9B
2016-Q4	245	48,130,962	—	$3.0B
2016-Q3	218	48,807,595	—	$2.2B
2016-Q2	218	48,112,129	—	$2.1B
2016-Q1	236	46,069,754	—	$2.2B
2015-Q4	211	43,790,138	103.3%	$1.9B
2015-Q3	202	44,072,865	103.9%	$1.9B
2015-Q2	211	44,876,080	103.9%	$2.4B
2015-Q1	221	43,798,709	99.8%	$2.5B
2014-Q4	215	44,413,726	100.5%	$2.6B
2014-Q3	227	45,363,919	102.6%	$2.6B
2014-Q2	227	46,403,350	103.6%	$3.1B
2014-Q1	220	43,771,389	95.2%	$3.0B
2013-Q4	195	44,658,490	96.7%	$2.3B
2013-Q3	190	42,530,504	92.1%	$2.0B
2013-Q2	188	40,777,740	88.3%	$1.9B
2013-Q1	16	1,487,481	3.2%	$77M

GATX US Equity☆

Institutional ownership· 13F filers holding GATX · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · GATX

Institutional ownership· 13F filers holding GATX · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · GATX

GATX US Equity