Boston Trust Walden’s Magnolia Oil & Gas MGY Stock Holding History

Boston Trust Walden’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	$61M	Sell	2,384,760 -843,146	-26%	-$24.1M	0.46%	74
2026 Q1	$102M	Sell	3,227,906 -940,179	-23%	-$25.2M	0.84%	20
2025 Q4	$91.2M	Buy	4,168,085 +225,349	+6%	+$5.12M	0.69%	35
2025 Q3	$94.1M	Sell	3,942,736 -61,034	-2%	-$1.46M	0.69%	33
2025 Q2	$90M	Buy	4,003,770 +825,162	+26%	+$18.3M	0.64%	46
2025 Q1	$80.3M	Buy	3,178,608 +88,021	+3%	+$2.13M	0.59%	55
2024 Q4	$72.3M	Buy	3,090,587 +267,461	+9%	+$6.95M	0.51%	66
2024 Q3	$68.9M	Buy	2,823,126 +119,582	+4%	+$3.01M	0.48%	73
2024 Q2	$68.5M	Buy	2,703,544 +568,998	+27%	+$14.5M	0.51%	65
2024 Q1	$55.4M	Buy	+2,134,546	New	+$46.8M	0.4%	100

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 $3.37T AUM 44.26% 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

Boston Trust Walden's MGY Position: Q2 2026 in Review

Boston Trust Walden reduced its Magnolia Oil & Gas (MGY) stake by 26% in Q2 2026, selling an estimated $24.1M and leaving 2,384,760 shares worth $61M. The position accounts for 0.46% of the portfolio, ranked #74.

Boston Trust Walden first reported a position in MGY in Q1 2024 and has held it in 10 quarters since. The position peaked at $102M in Q1 2026. 408 funds tracked by Wall St. Rank hold MGY as of Q2 2026.

Boston Trust Walden held 2,384,760 shares of Magnolia Oil & Gas worth $61M as of Q2 2026.
Boston Trust Walden sold 843,146 Magnolia Oil & Gas shares in Q2 2026, an estimated $24.1M.
Magnolia Oil & Gas made up 0.46% of Boston Trust Walden's portfolio in Q2 2026, its #74 holding.
Boston Trust Walden first reported a position in Magnolia Oil & Gas in Q1 2024 and has held it in 10 quarters since.
Boston Trust Walden's Magnolia Oil & Gas position peaked at $102M in Q1 2026.
408 funds tracked by Wall St. Rank held Magnolia Oil & Gas as of Q2 2026.

Based on Boston Trust Walden's 13F filing for Q2 2026, filed 24 Jul 2026.