Simplex Trading
MARA icon

Simplex Trading’s Marathon Digital Holdings MARA Stock Holding History

Simplex Trading’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
Q1 		– Sell
-27,666
Closed -$250K – 9698
2025
Q4 		$248K Buy
+27,666
New +$408K ﹤0.01% 4006
2025
Q1 		– Sell
-629,246
Closed -$10M – 9177
2024
Q4 		$10.6M Sell
629,246
-11,919
-2% -$241K 0.01% 999
2024
Q3 		$10.4M Sell
641,165
-723,251
-53% -$13.1M 0.01% 1012
2024
Q2 		$27.1M Sell
1,364,416
-96,286
-7% -$1.83M 0.02% 495
2024
Q1 		$33M Buy
+1,460,702
New +$31.9M 0.02% 473
2023
Q3 		– Sell
-55,645
Closed -$747K – 9337
2023
Q2 		$771K Buy
+55,645
New +$560K ﹤0.01% 2853
2022
Q2 		– Sell
-28,736
Closed -$384K – 10608
2022
Q1 		$803K Sell
28,736
-82,438
-74% -$2.14M ﹤0.01% 3188
2021
Q4 		$3.65M Buy
111,174
+67,901
+157% +$3.25M ﹤0.01% 1474
2021
Q3 		$1.33M Sell
43,273
-9,187
-18% -$299K ﹤0.01% 2699
2021
Q2 		$1.65M Sell
52,460
-337,908
-87% -$10.7M ﹤0.01% 2439
2021
Q1 		$18.7M Buy
390,368
+282,342
+261% +$8.75M 0.03% 294
2020
Q4 		$1.13M Buy
108,026
+68,570
+174% +$316K ﹤0.01% 2404
2020
Q3 		$77K Buy
39,456
+36,826
+1,400% +$79K ﹤0.01% 5181
2020
Q2 		$2K Buy
+2,630
New +$1.85K ﹤0.01% 7255
2019
Q1 		– Sell
-375
Closed -$766 – 7533
2018
Q4 		$0 Buy
+375
New +$897 ﹤0.01% 7470
2018
Q2 		– Sell
-2,065
Closed -$11.1K – 7664
2018
Q1 		$9K Sell
2,065
-2,410
-54% -$25.4K ﹤0.01% 4131
2017
Q4 		$73K Buy
+4,475
New +$52.7K ﹤0.01% 2076
2016
Q2 		– Sell
-36
Closed -$1K – 6180
2016
Q1 		$1K Buy
+36
New +$1.14K ﹤0.01% 5158
2015
Q4 		– Hold
0
– – – 5811
2015
Q3 		– Sell
-107
Closed -$4.35K – 5886
2015
Q2 		$4K Buy
+107
New +$8.42K ﹤0.01% 3827

Other funds holding MARA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
MG
Marex Group London $23.6B AUM 57.16% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Simplex Trading's MARA Position: Q1 2026 in Review

Simplex Trading sold out of Marathon Digital Holdings (MARA) in Q1 2026, closing a stake of 27,666 shares — an estimated $250K sold.

Simplex Trading first reported a position in MARA in Q2 2015 and held it in 19 quarters. The position peaked at $33M in Q1 2024. 387 funds tracked by Wall St. Rank hold MARA as of Q1 2026.

  • Simplex Trading reported no remaining Marathon Digital Holdings position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 27,666 Marathon Digital Holdings shares in Q1 2026, an estimated $250K.
  • Simplex Trading first reported a position in Marathon Digital Holdings in Q2 2015 and held it in 19 quarters.
  • Simplex Trading's Marathon Digital Holdings position peaked at $33M in Q1 2024.
  • 387 funds tracked by Wall St. Rank held Marathon Digital Holdings as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.