SWX US Equity

Southwest Gas Holdings, Inc.

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Utilities · Natural Gas Transmisison & Distribution · CIK 1692115 · FYE 1231

$91.80

-0.84 (-0.91%)

USD · as of 2026-07-29 · marketstack

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

393 holders

% of shares outstanding held

90.0%

Shares held (13F)

65,167,830

Reporting holders

393

Top holders

largest 100 of 393 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	10,747,13110.7M	$934M	14.85%	ADD 5%
2	FMR LLC	5,161,9575.2M	$449M	7.13%	TRIM -9%
3	Corvex Management LP	4,318,1614.3M	$375M	5.97%	TRIM -14%
4	VANGUARD PORTFOLIO MANAGEMENT LLC	3,855,7673.9M	$335M	5.33%	NEW†
5	VANGUARD CAPITAL MANAGEMENT LLC	3,008,2993.0M	$261M	4.16%	NEW†
6	STATE STREET CORP	2,421,5352.4M	$210M	3.35%	ADD 3%
7	MAVERICK CAPITAL LTD	2,126,9272.1M	$185M	2.94%	ADD 4%
8	GEODE CAPITAL MANAGEMENT, LLC	1,708,0061.7M	$148M	2.36%	ADD 7%
9	ADAGE CAPITAL PARTNERS GP, L.L.C.	1,475,0001.5M	$128M	2.04%	TRIM -11%
10	AQR CAPITAL MANAGEMENT LLC	1,163,9781.2M	$101M	1.61%	ADD 93%
11	Channing Capital Management, LLC	1,106,8311.1M	$96M	1.53%	ADD 20%
12	PRINCIPAL FINANCIAL GROUP INC	1,071,7931.1M	$93M	1.48%	—
13	DIMENSIONAL FUND ADVISORS LP	1,054,7501.1M	$92M	1.46%	—
14	T. Rowe Price Investment Management, Inc.	1,034,5831.0M	$90M	1.43%	TRIM -23%
15	GABELLI FUNDS LLC	966,089966,089	$84M	1.33%	TRIM -5%
16	River Road Asset Management, LLC	903,750903,750	$79M	1.25%	TRIM -3%
17	Bank of New York Mellon Corp	846,251846,251	$74M	1.17%	ADD 11%
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	833,953833,953	$72M	1.15%	TRIM -7%
19	FULLER & THALER ASSET MANAGEMENT, INC.	829,634829,634	$72M	1.15%	TRIM -52%
20	NORTHERN TRUST CORP	794,255794,255	$69M	1.10%	ADD 7%
21	GAMCO INVESTORS, INC. ET AL	782,818782,818	$68M	1.08%	TRIM -4%
22	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	760,462760,462	$66M	1.05%	TRIM -13%
23	BROOKFIELD Corp /ON/	699,626699,626	$61M	0.97%	ADD 107%
24	GOLDMAN SACHS GROUP INC	695,594695,594	$60M	0.96%	ADD 49%
25	MORGAN STANLEY	670,343670,343	$58M	0.93%	ADD 46%
26	JPMORGAN CHASE & CO	609,398609,398	$53M	0.84%	TRIM -10%
27	Zimmer Partners, LP	606,922606,922	$53M	0.84%	ADD 228%
28	Balyasny Asset Management L.P.	565,916565,916	$49M	0.78%	NEW
29	Point72 Asset Management, L.P.	514,794514,794	$45M	0.71%	NEW
30	Nuveen, LLC	491,826491,826	$43M	0.68%	ADD 47%
31	FIRST TRUST ADVISORS LP	489,729489,729	$43M	0.68%	TRIM -3%
32	VICTORY CAPITAL MANAGEMENT INC	484,552484,552	$42M	0.67%	—
33	COHEN & STEERS, INC.	462,720462,720	$40M	0.64%	NEW
34	RENAISSANCE TECHNOLOGIES LLC	459,000459,000	$40M	0.63%	ADD 281%
35	CITADEL ADVISORS LLC	435,739435,739	$38M	0.60%	ADD 84%
36	NEUBERGER BERMAN GROUP LLC	427,037427,037	$37M	0.59%	ADD 15%
37	Invesco Ltd.	425,187425,187	$37M	0.59%	ADD 12%
38	VANGUARD FIDUCIARY TRUST CO	420,651420,651	$37M	0.58%	NEW
39	BANK OF AMERICA CORP /DE/	395,336395,336	$34M	0.55%	ADD 55%
40	UBS Group AG	393,500393,500	$34M	0.54%	ADD 108%
41	Man Group plc	287,562287,562	$25M	0.40%	ADD 203%
42	JACOBS LEVY EQUITY MANAGEMENT, INC	271,861271,861	$24M	0.38%	ADD 207%
43	NEW YORK STATE COMMON RETIREMENT FUND	261,347261,347	$23M	0.36%	ADD 24%
44	BARCLAYS PLC	249,295249,295	$22M	0.34%	ADD 78%
45	WELLINGTON MANAGEMENT GROUP LLP	227,805227,805	$20M	0.31%	ADD 18%
46	KAYNE ANDERSON CAPITAL ADVISORS LP	216,680216,680	$19M	0.30%	NEW
47	RHUMBLINE ADVISERS	214,687214,687	$19M	0.30%	ADD 3%
48	ALGERT GLOBAL LLC	210,571210,571	$18M	0.29%	ADD 242%
49	Hudson Bay Capital Management LP	178,366178,366	$16M	0.25%	ADD 28%
50	California Public Employees Retirement System	177,961177,961	$15M	0.25%	TRIM -6%
51	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	166,660166,660	$14M	0.23%	ADD 3%
52	Verbena Value LP	166,246166,246	$14M	0.23%	ADD 38%
53	BW Gestao de Investimentos Ltda.	165,257165,257	$14M	0.23%	TRIM -5%
54	EXCHANGE TRADED CONCEPTS, LLC	164,933164,933	$14M	0.23%	ADD 9%
55	ALLIANCEBERNSTEIN L.P.	155,580155,580	$12M	0.21%	TRIM -13%
56	Walleye Capital LLC	132,125132,125	$11M	0.18%	ADD 8%
57	PRUDENTIAL FINANCIAL INC	129,185129,185	$11M	0.18%	—
58	Sourcerock Group LLC	128,669128,669	$11M	0.18%	TRIM -35%
59	HSBC HOLDINGS PLC	127,258127,258	$11M	0.18%	TRIM -33%
60	Swiss National Bank	121,300121,300	$11M	0.17%	—
61	D. E. Shaw & Co., Inc.	113,010113,010	$10M	0.16%	NEW
62	Russell Investments Group, Ltd.	110,733110,733	$10M	0.15%	ADD 222%
63	AMERIPRISE FINANCIAL INC	99,22799,227	$9M	0.14%	TRIM -20%
64	Ensign Peak Advisors, Inc	94,13294,132	$8M	0.13%	—
65	SEI INVESTMENTS CO	93,54793,547	$8M	0.13%	ADD 97%
66	BNP PARIBAS FINANCIAL MARKETS	92,56392,563	$8M	0.13%	ADD 184%
67	DEUTSCHE BANK AG\	92,24692,246	$8M	0.13%	ADD 9%
68	Legal & General Group Plc	91,38891,388	$8M	0.13%	TRIM -10%
69	HENNESSY ADVISORS INC	90,41790,417	$8M	0.12%	—
70	CANADA LIFE ASSURANCE Co	87,00987,009	$8M	0.12%	—
71	DUFF & PHELPS INVESTMENT MANAGEMENT CO	85,00085,000	$7M	0.12%	NEW
72	Moody Aldrich Partners LLC	84,00284,002	$7M	0.12%	ADD 12%
73	RAYMOND JAMES FINANCIAL INC	79,70379,703	$7M	0.11%	TRIM -6%
74	Retirement Systems of Alabama	78,76078,760	$7M	0.11%	ADD 2%
75	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	76,33676,336	$7M	0.11%	ADD 30%
76	Sterling Capital Management LLC	75,04175,041	$7M	0.10%	TRIM -4%
77	PRICE T ROWE ASSOCIATES INC /MD/	74,41174,411	$6M	0.10%	ADD 24%
78	WELLS FARGO & COMPANY/MN	73,04073,040	$6M	0.10%	TRIM -38%
79	MetLife Investment Management, LLC	67,90867,908	$6M	0.09%	ADD 3%
80	FIFTH THIRD BANCORP	67,65567,655	$6M	0.09%	ADD 13735%
81	FRANKLIN RESOURCES INC	64,75464,754	$6M	0.09%	TRIM -6%
82	STATE OF WISCONSIN INVESTMENT BOARD	63,83063,830	$6M	0.09%	TRIM -20%
83	MANUFACTURERS LIFE INSURANCE COMPANY, THE	62,81362,813	$5M	0.09%	TRIM -6%
84	PEREGRINE CAPITAL MANAGEMENT LLC	59,57059,570	$5M	0.08%	TRIM -9%
85	Aventail Capital Group, LP	57,90457,904	$5M	0.08%	ADD 17%
86	Maryland State Retirement & Pension System	57,63657,636	$5M	0.08%	TRIM -4%
87	BOOTHBAY FUND MANAGEMENT, LLC	57,49457,494	$5M	0.08%	TRIM -16%
88	ROYAL BANK OF CANADA	56,97656,976	$5M	0.08%	TRIM -52%
89	MILLENNIUM MANAGEMENT LLC	56,42756,427	$5M	0.08%	ADD 164%
90	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	52,21852,218	$5M	0.07%	—
91	Edgestream Partners, L.P.	50,21750,217	$4M	0.07%	NEW
92	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	49,04349,043	$4M	0.07%	TRIM -4%
93	JONES FINANCIAL COMPANIES LLLP	48,66848,668	$4M	0.07%	ADD 3%
94	AMERICAN CENTURY COMPANIES INC	48,40948,409	$4M	0.07%	TRIM -53%
95	VANGUARD ASSET MANAGEMENT, Ltd	48,12448,124	$4M	0.07%	NEW
96	MARTINGALE ASSET MANAGEMENT L P	44,63444,634	$4M	0.06%	ADD 22%
97	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	43,71743,717	$4M	0.06%	NEW
98	Campbell & CO Investment Adviser LLC	43,62743,627	$4M	0.06%	NEW
99	BESSEMER GROUP INC	41,20541,205	$4M	0.06%	—
100	Ausbil Investment Management Ltd	39,70939,709	$3M	0.05%	NEW

† 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

BlackRock, Inc.

9.7M

9.9M

9.8M

10.3M

10.7M

$934M

FMR LLC

3.3M

3.4M

3.6M

4.8M

5.6M

5.2M

$449M

Corvex Management LP

4.8M

5.0M

4.3M

$375M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

3.9M

$335M

VANGUARD CAPITAL MANAGEMENT LLC

—

3.0M

$261M

STATE STREET CORP

2.4M

2.3M

2.4M

2.3M

2.4M

$210M

MAVERICK CAPITAL LTD

1.8M

2.0M

2.1M

$185M

GEODE CAPITAL MANAGEMENT, LLC

1.4M

1.5M

1.6M

1.7M

$148M

ADAGE CAPITAL PARTNERS GP, L.L.C.

900K

1.6M

1.4M

1.6M

1.5M

$128M

AQR CAPITAL MANAGEMENT LLC

74K

227K

405K

403K

604K

1.2M

$101M

Channing Capital Management, LLC

1.3M

1.0M

704K

931K

922K

1.1M

$96M

PRINCIPAL FINANCIAL GROUP INC

1.1M

1.0M

1.2M

1.1M

$93M

DIMENSIONAL FUND ADVISORS LP

1.0M

1.1M

$92M

T. Rowe Price Investment Management, Inc.

—

1.2M

1.5M

1.3M

1.0M

$90M

GABELLI FUNDS LLC

1.0M

973K

1.0M

966K

$84M

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 uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	393	65,167,830	90.0%	$5.7B
2025-Q4

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 · SWX

Activists — 13D, active intent

Corvex Management LP4.99%▼ -2.01ppSCHEDULE 13D/A · Amd 2 · event 2026-05-06SEC →

3,618,161 shares · 2 reporting persons

ICAHN CARL C4.99%▼ -1.61ppSCHEDULE 13D/A · Amd 17 · event 2026-01-27SEC →

3,600,000 shares · 11 reporting persons

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
FMR LLC	7.8%	QII	2025-12-31	SEC →
VANGUARD PORTFOLIO MANAGEMENT LLC	5.36%	QII	2026-03-31	SEC →

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

393 holders

% of shares outstanding held

90.0%

Shares held (13F)

65,167,830

Reporting holders

393

Top holders

largest 100 of 393 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	10,747,13110.7M	$934M	14.85%	ADD 5%
2	FMR LLC	5,161,9575.2M	$449M	7.13%	TRIM -9%
3	Corvex Management LP	4,318,1614.3M	$375M	5.97%	TRIM -14%
4	VANGUARD PORTFOLIO MANAGEMENT LLC	3,855,7673.9M	$335M	5.33%	NEW†
5	VANGUARD CAPITAL MANAGEMENT LLC	3,008,2993.0M	$261M	4.16%	NEW†
6	STATE STREET CORP	2,421,5352.4M	$210M	3.35%	ADD 3%
7	MAVERICK CAPITAL LTD	2,126,9272.1M	$185M	2.94%	ADD 4%
8	GEODE CAPITAL MANAGEMENT, LLC	1,708,0061.7M	$148M	2.36%	ADD 7%
9	ADAGE CAPITAL PARTNERS GP, L.L.C.	1,475,0001.5M	$128M	2.04%	TRIM -11%
10	AQR CAPITAL MANAGEMENT LLC	1,163,9781.2M	$101M	1.61%	ADD 93%
11	Channing Capital Management, LLC	1,106,8311.1M	$96M	1.53%	ADD 20%
12	PRINCIPAL FINANCIAL GROUP INC	1,071,7931.1M	$93M	1.48%	—
13	DIMENSIONAL FUND ADVISORS LP	1,054,7501.1M	$92M	1.46%	—
14	T. Rowe Price Investment Management, Inc.	1,034,5831.0M	$90M	1.43%	TRIM -23%
15	GABELLI FUNDS LLC	966,089966,089	$84M	1.33%	TRIM -5%
16	River Road Asset Management, LLC	903,750903,750	$79M	1.25%	TRIM -3%
17	Bank of New York Mellon Corp	846,251846,251	$74M	1.17%	ADD 11%
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	833,953833,953	$72M	1.15%	TRIM -7%
19	FULLER & THALER ASSET MANAGEMENT, INC.	829,634829,634	$72M	1.15%	TRIM -52%
20	NORTHERN TRUST CORP	794,255794,255	$69M	1.10%	ADD 7%
21	GAMCO INVESTORS, INC. ET AL	782,818782,818	$68M	1.08%	TRIM -4%
22	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	760,462760,462	$66M	1.05%	TRIM -13%
23	BROOKFIELD Corp /ON/	699,626699,626	$61M	0.97%	ADD 107%
24	GOLDMAN SACHS GROUP INC	695,594695,594	$60M	0.96%	ADD 49%
25	MORGAN STANLEY	670,343670,343	$58M	0.93%	ADD 46%
26	JPMORGAN CHASE & CO	609,398609,398	$53M	0.84%	TRIM -10%
27	Zimmer Partners, LP	606,922606,922	$53M	0.84%	ADD 228%
28	Balyasny Asset Management L.P.	565,916565,916	$49M	0.78%	NEW
29	Point72 Asset Management, L.P.	514,794514,794	$45M	0.71%	NEW
30	Nuveen, LLC	491,826491,826	$43M	0.68%	ADD 47%
31	FIRST TRUST ADVISORS LP	489,729489,729	$43M	0.68%	TRIM -3%
32	VICTORY CAPITAL MANAGEMENT INC	484,552484,552	$42M	0.67%	—
33	COHEN & STEERS, INC.	462,720462,720	$40M	0.64%	NEW
34	RENAISSANCE TECHNOLOGIES LLC	459,000459,000	$40M	0.63%	ADD 281%
35	CITADEL ADVISORS LLC	435,739435,739	$38M	0.60%	ADD 84%
36	NEUBERGER BERMAN GROUP LLC	427,037427,037	$37M	0.59%	ADD 15%
37	Invesco Ltd.	425,187425,187	$37M	0.59%	ADD 12%
38	VANGUARD FIDUCIARY TRUST CO	420,651420,651	$37M	0.58%	NEW
39	BANK OF AMERICA CORP /DE/	395,336395,336	$34M	0.55%	ADD 55%
40	UBS Group AG	393,500393,500	$34M	0.54%	ADD 108%
41	Man Group plc	287,562287,562	$25M	0.40%	ADD 203%
42	JACOBS LEVY EQUITY MANAGEMENT, INC	271,861271,861	$24M	0.38%	ADD 207%
43	NEW YORK STATE COMMON RETIREMENT FUND	261,347261,347	$23M	0.36%	ADD 24%
44	BARCLAYS PLC	249,295249,295	$22M	0.34%	ADD 78%
45	WELLINGTON MANAGEMENT GROUP LLP	227,805227,805	$20M	0.31%	ADD 18%
46	KAYNE ANDERSON CAPITAL ADVISORS LP	216,680216,680	$19M	0.30%	NEW
47	RHUMBLINE ADVISERS	214,687214,687	$19M	0.30%	ADD 3%
48	ALGERT GLOBAL LLC	210,571210,571	$18M	0.29%	ADD 242%
49	Hudson Bay Capital Management LP	178,366178,366	$16M	0.25%	ADD 28%
50	California Public Employees Retirement System	177,961177,961	$15M	0.25%	TRIM -6%
51	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	166,660166,660	$14M	0.23%	ADD 3%
52	Verbena Value LP	166,246166,246	$14M	0.23%	ADD 38%
53	BW Gestao de Investimentos Ltda.	165,257165,257	$14M	0.23%	TRIM -5%
54	EXCHANGE TRADED CONCEPTS, LLC	164,933164,933	$14M	0.23%	ADD 9%
55	ALLIANCEBERNSTEIN L.P.	155,580155,580	$12M	0.21%	TRIM -13%
56	Walleye Capital LLC	132,125132,125	$11M	0.18%	ADD 8%
57	PRUDENTIAL FINANCIAL INC	129,185129,185	$11M	0.18%	—
58	Sourcerock Group LLC	128,669128,669	$11M	0.18%	TRIM -35%
59	HSBC HOLDINGS PLC	127,258127,258	$11M	0.18%	TRIM -33%
60	Swiss National Bank	121,300121,300	$11M	0.17%	—
61	D. E. Shaw & Co., Inc.	113,010113,010	$10M	0.16%	NEW
62	Russell Investments Group, Ltd.	110,733110,733	$10M	0.15%	ADD 222%
63	AMERIPRISE FINANCIAL INC	99,22799,227	$9M	0.14%	TRIM -20%
64	Ensign Peak Advisors, Inc	94,13294,132	$8M	0.13%	—
65	SEI INVESTMENTS CO	93,54793,547	$8M	0.13%	ADD 97%
66	BNP PARIBAS FINANCIAL MARKETS	92,56392,563	$8M	0.13%	ADD 184%
67	DEUTSCHE BANK AG\	92,24692,246	$8M	0.13%	ADD 9%
68	Legal & General Group Plc	91,38891,388	$8M	0.13%	TRIM -10%
69	HENNESSY ADVISORS INC	90,41790,417	$8M	0.12%	—
70	CANADA LIFE ASSURANCE Co	87,00987,009	$8M	0.12%	—
71	DUFF & PHELPS INVESTMENT MANAGEMENT CO	85,00085,000	$7M	0.12%	NEW
72	Moody Aldrich Partners LLC	84,00284,002	$7M	0.12%	ADD 12%
73	RAYMOND JAMES FINANCIAL INC	79,70379,703	$7M	0.11%	TRIM -6%
74	Retirement Systems of Alabama	78,76078,760	$7M	0.11%	ADD 2%
75	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	76,33676,336	$7M	0.11%	ADD 30%
76	Sterling Capital Management LLC	75,04175,041	$7M	0.10%	TRIM -4%
77	PRICE T ROWE ASSOCIATES INC /MD/	74,41174,411	$6M	0.10%	ADD 24%
78	WELLS FARGO & COMPANY/MN	73,04073,040	$6M	0.10%	TRIM -38%
79	MetLife Investment Management, LLC	67,90867,908	$6M	0.09%	ADD 3%
80	FIFTH THIRD BANCORP	67,65567,655	$6M	0.09%	ADD 13735%
81	FRANKLIN RESOURCES INC	64,75464,754	$6M	0.09%	TRIM -6%
82	STATE OF WISCONSIN INVESTMENT BOARD	63,83063,830	$6M	0.09%	TRIM -20%
83	MANUFACTURERS LIFE INSURANCE COMPANY, THE	62,81362,813	$5M	0.09%	TRIM -6%
84	PEREGRINE CAPITAL MANAGEMENT LLC	59,57059,570	$5M	0.08%	TRIM -9%
85	Aventail Capital Group, LP	57,90457,904	$5M	0.08%	ADD 17%
86	Maryland State Retirement & Pension System	57,63657,636	$5M	0.08%	TRIM -4%
87	BOOTHBAY FUND MANAGEMENT, LLC	57,49457,494	$5M	0.08%	TRIM -16%
88	ROYAL BANK OF CANADA	56,97656,976	$5M	0.08%	TRIM -52%
89	MILLENNIUM MANAGEMENT LLC	56,42756,427	$5M	0.08%	ADD 164%
90	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	52,21852,218	$5M	0.07%	—
91	Edgestream Partners, L.P.	50,21750,217	$4M	0.07%	NEW
92	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	49,04349,043	$4M	0.07%	TRIM -4%
93	JONES FINANCIAL COMPANIES LLLP	48,66848,668	$4M	0.07%	ADD 3%
94	AMERICAN CENTURY COMPANIES INC	48,40948,409	$4M	0.07%	TRIM -53%
95	VANGUARD ASSET MANAGEMENT, Ltd	48,12448,124	$4M	0.07%	NEW
96	MARTINGALE ASSET MANAGEMENT L P	44,63444,634	$4M	0.06%	ADD 22%
97	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	43,71743,717	$4M	0.06%	NEW
98	Campbell & CO Investment Adviser LLC	43,62743,627	$4M	0.06%	NEW
99	BESSEMER GROUP INC	41,20541,205	$4M	0.06%	—
100	Ausbil Investment Management Ltd	39,70939,709	$3M	0.05%	NEW

† 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

BlackRock, Inc.

9.7M

9.9M

9.8M

10.3M

10.7M

$934M

FMR LLC

3.3M

3.4M

3.6M

4.8M

5.6M

5.2M

$449M

Corvex Management LP

4.8M

5.0M

4.3M

$375M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

3.9M

$335M

VANGUARD CAPITAL MANAGEMENT LLC

—

3.0M

$261M

STATE STREET CORP

2.4M

2.3M

2.4M

2.3M

2.4M

$210M

MAVERICK CAPITAL LTD

1.8M

2.0M

2.1M

$185M

GEODE CAPITAL MANAGEMENT, LLC

1.4M

1.5M

1.6M

1.7M

$148M

ADAGE CAPITAL PARTNERS GP, L.L.C.

900K

1.6M

1.4M

1.6M

1.5M

$128M

AQR CAPITAL MANAGEMENT LLC

74K

227K

405K

403K

604K

1.2M

$101M

Channing Capital Management, LLC

1.3M

1.0M

704K

931K

922K

1.1M

$96M

PRINCIPAL FINANCIAL GROUP INC

1.1M

1.0M

1.2M

1.1M

$93M

DIMENSIONAL FUND ADVISORS LP

1.0M

1.1M

$92M

T. Rowe Price Investment Management, Inc.

—

1.2M

1.5M

1.3M

1.0M

$90M

GABELLI FUNDS LLC

1.0M

973K

1.0M

966K

$84M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	393	65,167,830	90.0%	$5.7B
2025-Q4

Short interest has its own tab now — open SI →

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

Activists — 13D, active intent

Corvex Management LP4.99%▼ -2.01ppSCHEDULE 13D/A · Amd 2 · event 2026-05-06SEC →

3,618,161 shares · 2 reporting persons

ICAHN CARL C4.99%▼ -1.61ppSCHEDULE 13D/A · Amd 17 · event 2026-01-27SEC →

3,600,000 shares · 11 reporting persons

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
FMR LLC	7.8%	QII	2025-12-31	SEC →
VANGUARD PORTFOLIO MANAGEMENT LLC	5.36%	QII	2026-03-31	SEC →

SWX US Equity☆

Institutional ownership· 13F filers holding SWX · 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 · SWX

Institutional ownership· 13F filers holding SWX · 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 · SWX

SWX US Equity