Brown Brothers Harriman & Co’s Magnolia Oil & Gas MGY Stock Holding History

Brown Brothers Harriman & Co’s Portfolio MGY Stock Details MGY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$17.2K	Hold	674	–	–	﹤0.01%	1318
2026 Q1	$21.3K	Sell	674 -42	-6%	-$1.12K	﹤0.01%	1221
2025 Q4	$15.7K	Buy	+716	New	+$16.3K	﹤0.01%	1251
2025 Q1	–	Sell	-62	Closed	-$1.45K	–	1405
2024 Q4	$1.45K	Hold	62	–	–	﹤0.01%	1361
2024 Q3	$1.51K	Buy	+62	New	+$1.56K	﹤0.01%	1331
2023 Q2	–	Sell	-82	Closed	-$1.79K	–	1284
2023 Q1	$1.79K	Buy	+82	New	+$1.82K	﹤0.01%	1163
2020 Q2	–	Sell	-147	Closed	-$1K	–	1108
2020 Q1	$1K	Buy	+147	New	+$1.26K	﹤0.01%	1020

Other funds holding MGY

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Brown Brothers Harriman & Co's MGY Position: Q2 2026 in Review

Brown Brothers Harriman & Co held its Magnolia Oil & Gas (MGY) position steady in Q2 2026 at 674 shares worth $17.2K. The position accounts for ﹤0.01% of the portfolio, ranked #1318.

Brown Brothers Harriman & Co first reported a position in MGY in Q1 2020 and has held it in 7 quarters since. The position peaked at $21.3K in Q1 2026. 411 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

Brown Brothers Harriman & Co held 674 shares of Magnolia Oil & Gas worth $17.2K as of Q2 2026.
Brown Brothers Harriman & Co left its Magnolia Oil & Gas share count unchanged in Q2 2026.
Magnolia Oil & Gas made up ﹤0.01% of Brown Brothers Harriman & Co's portfolio in Q2 2026, its #1318 holding.
Brown Brothers Harriman & Co first reported a position in Magnolia Oil & Gas in Q1 2020 and has held it in 7 quarters since.
Brown Brothers Harriman & Co's Magnolia Oil & Gas position peaked at $21.3K in Q1 2026.
411 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Brown Brothers Harriman & Co's 13F filing for Q2 2026, filed 12 Aug 2026.