ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in SWX — Southwest Gas Holdings, Inc.

CIK 1165408 Boston, MA

Position in SWX

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$120,118,567

-$8,058,933 QoQ

Shares Held

1,354,517

-8.2% QoQ

Ownership

1.87%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

#10

of 411 holders

Holding Since

Mar 2022

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Utilities · as of Jun 30, 2026

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $380,277,664 across 6 Utilities - Regulated Gas names. SWX ranks #1 (31.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	SWX	Southwest Gas Holdings, Inc. This page	1,354,517	$120,118,567
2	BKH	Black Hills Corp /Sd/	1,185,024	$88,165,785
3	SR	Spire Inc	1,076,440	$84,059,199
4	NI	Nisource Inc.	877,262	$41,713,808
5	ATO	Atmos Energy Corp	148,804	$25,634,465
6	UGI	Ugi Corp /Pa/	596,000	$20,585,840

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$120,118,567	1,354,517	-8.2%	Shares	Sole	2026-08-14
2026-03-31	$128,177,500	1,475,000	-10.5%	Shares	Sole	2026-05-15
2025-12-31	$131,912,649	1,648,496	+16.1%	Shares	Sole	2026-02-17
2025-09-30	$111,242,800	1,420,000	-12.3%	Shares	Sole	2025-11-14
2025-06-30	$120,511,800	1,620,000	+4.5%	Shares	Sole	2025-08-14
2025-03-31	$111,290,000	1,550,000	+72.2%	Shares	Sole	2025-05-15
2024-12-31	$63,639,000	900,000	+111.8%	Shares	Sole	2025-02-14
2024-09-30	$31,348,000	425,000	-46.9%	Shares	Sole	2024-11-14
2024-06-30	$56,304,000	800,000	-20.0%	Shares	Sole	2024-08-14
2024-03-31	$76,130,000	1,000,000	+90.5%	Shares	Sole	2024-05-15
2023-12-31	$33,258,750	525,000	+61.5%	Shares	Sole	2024-02-14
2023-09-30	$19,633,250	325,000	+160.0%	Shares	Sole	2023-11-14
2023-06-30	$7,956,250	125,000	-67.5%	Shares	Other	2023-08-14
2022-06-30	$33,525,800	385,000	+285.0%	Shares	Sole	2022-08-15
2022-03-31	$7,829,000	100,000	—	Shares	Sole	2022-05-16
No filing history on record for this holder in this stock.