John Overdeck’s Marathon Digital Holdings MARA Stock Holding History

John Overdeck’s Portfolio MARA Stock Details MARA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$6.76M	Sell	486,400 -1,468,500	-75%	-$18.4M	﹤0.01%	1859
2026 Q1	$16M	Sell	1,954,900 -2,417,700	-55%	-$21.9M	0.01%	1099
2025 Q4	$39.3M	Sell	4,372,600 -212,800	-5%	-$3.14M	0.06%	425
2025 Q3	$83.7M	Buy	4,585,400 +1,823,100	+66%	+$30.7M	0.12%	215
2025 Q2	$43.3M	Buy	2,762,300 +1,172,600	+74%	+$16.8M	0.08%	320
2025 Q1	$18.3M	Buy	1,589,700 +719,400	+83%	+$11.4M	0.04%	524
2024 Q4	$14.6M	Buy	+870,300	New	+$17.6M	0.03%	600
2023 Q4	–	Sell	-164,700	Closed	-$1.4M	–	3277
2023 Q3	$1.4M	Sell	164,700 -542,200	-77%	-$7.28M	﹤0.01%	1722
2023 Q2	$9.8M	Hold	706,900	–	–	0.02%	654
2023 Q1	$6.16M	Buy	+706,900	New	+$4.94M	0.02%	810
2021 Q1	–	Sell	-95,400	Closed	-$996K	–	4074
2020 Q4	$996K	Buy	+95,400	New	+$440K	﹤0.01%	2010

Other funds holding MARA

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Marex Group London $23.6B AUM 57.16% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

John Overdeck's MARA Position: Q2 2026 in Review

John Overdeck opened a new position in Marathon Digital Holdings (MARA) in Q2 2026: 2,569,038 shares worth $35.7M. The stake represents 0.03% of the portfolio and ranks #717 among its holdings. This is a return to the name: John Overdeck previously reported a position in MARA as recently as Q3 2025.

John Overdeck first reported a position in MARA in Q4 2022 and has held it in 9 quarters since. The position peaked at $53.7M in Q4 2023. 411 funds tracked by Wall St. Rank hold MARA as of Q2 2026.

John Overdeck held 2,569,038 shares of Marathon Digital Holdings worth $35.7M as of Q2 2026.
Marathon Digital Holdings was a new John Overdeck position in Q2 2026.
Marathon Digital Holdings made up 0.03% of John Overdeck's portfolio in Q2 2026, its #717 holding.
John Overdeck first reported a position in Marathon Digital Holdings in Q4 2022 and has held it in 9 quarters since.
John Overdeck's Marathon Digital Holdings position peaked at $53.7M in Q4 2023.
411 funds tracked by Wall St. Rank held Marathon Digital Holdings as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.