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Frederick G. Thiel

MARA
CEO · MARA HOLDINGS, INC. · CIK 0001567383
FILING MIX · LIFETIME31%/69%
BUYS
28
SELLS
63
TOTAL VALUE
$58.05M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
4,498,908
AVG SELL PX
$14.92
TRADE KIND
SHOWING 91 / 91
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
23 backtested trades · 8 horizons · 36 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Frederick G. Thiel, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d23+43.48%+4.17%+0.44%+3.74%-2.09%—
14d23+52.17%-0.19%+0.37%-0.56%-2.69%—
30d23+39.13%+17.31%+1.43%+15.88%+11.38%—
60d23+47.83%+23.82%+3.07%+20.75%+1.24%—
90d23(1 pending)+59.09%+20.87%+3.64%+17.23%-8.76%—
180d23(4 pending)+68.42%+8.73%+7.63%+1.10%-21.55%—
1y23(11 pending)+75.00%+49.53%+19.59%+29.94%-42.62%—
2y23(20 pending)+100.00%+136.53%+26.35%+110.18%-47.15%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MARA · 4,498,908 shares · as of Jul 1, 2026
01,226,9542,453,9083,680,8614,907,815202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 28 buys / 63 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
63,101$13.89$876.5K4,498,908Jul 1, 2026Jul 2, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$14.25$391.9K4,562,009Jun 17, 2026Jun 22, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$12.00$330.1K4,589,514May 18, 2026May 20, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
27,316$11.46$313.0K4,617,019May 18, 2026May 20, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
80,884$11.99$969.8K4,644,335Apr 30, 2026May 4, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$11.68$321.3K4,725,219Apr 17, 2026Apr 21, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
36,230$8.16$295.6K4,752,724Apr 1, 2026Apr 3, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$9.18$252.5K4,788,954Mar 17, 2026Mar 19, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
752,093——4,907,815Feb 20, 2026Feb 20, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
91,356$7.50$685.2K4,816,459Feb 20, 2026Feb 24, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
773,861——4,155,722Feb 18, 2026Feb 19, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$7.66$210.7K3,381,861Feb 17, 2026Feb 19, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
67,704$9.12$617.5K3,409,366Feb 5, 2026Feb 6, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,496$9.50$384.7K3,477,070Jan 30, 2026Feb 3, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$10.80$297.1K3,517,566Jan 20, 2026Jan 22, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
10,418$8.98$93.6K3,545,071Jan 8, 2026Jan 9, 2026 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$10.77$296.2K3,555,489Dec 17, 2025Dec 19, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$11.99$329.8K3,582,994Nov 17, 2025Nov 19, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
27,316$17.81$486.5K3,610,499Nov 6, 2025Nov 10, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,388$18.27$737.9K3,637,815Nov 3, 2025Nov 4, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,497$17.76$719.2K3,678,203Oct 31, 2025Nov 4, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$19.57$538.3K3,718,700Oct 17, 2025Oct 20, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
9,584$18.26$175.0K3,746,205Oct 1, 2025Oct 3, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$17.38$478.0K3,755,789Sep 17, 2025Sep 18, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$16.35$449.7K3,783,294Sep 16, 2025Sep 18, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$15.28$420.3K3,810,799Aug 18, 2025Aug 19, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,388$16.08$649.4K3,865,620Aug 6, 2025Aug 8, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
27,316$15.50$423.4K3,838,304Aug 6, 2025Aug 8, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,496$16.55$670.2K3,906,008Aug 6, 2025Aug 8, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$19.52$536.9K3,946,504Jul 16, 2025Jul 18, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
9,584$15.68$150.3K3,974,009Jul 9, 2025Jul 11, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$15.30$420.8K3,983,593Jun 16, 2025Jun 18, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
80,885$13.37$1.08M4,065,919May 16, 2025May 20, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$15.68$431.3K4,011,098May 16, 2025May 20, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
27,316$14.05$383.8K4,038,603May 16, 2025May 20, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
55,010$15.00$825.1K4,146,804May 9, 2025May 13, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
9,584$11.50$110.2K4,251,105Apr 8, 2025Apr 10, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
49,291$13.92$686.1K4,201,814Apr 8, 2025Apr 10, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
417,550——4,328,393Feb 28, 2025Feb 28, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
40,388$18.34$740.7K4,288,005Feb 28, 2025Mar 4, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
27,316$17.95$490.3K4,260,689Feb 28, 2025Mar 4, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$16.68$458.8K3,910,843Feb 18, 2025Feb 20, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
162,237$19.56$3.17M3,938,348Feb 3, 2025Feb 5, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$18.01$495.4K4,100,585Jan 16, 2025Jan 21, 2025 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$23.50$646.4K4,128,090Dec 16, 2024Dec 18, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$19.80$544.6K4,155,595Nov 18, 2024Nov 20, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
67,704$16.50$1.12M4,183,100Nov 5, 2024Nov 7, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,505$17.50$481.3K4,250,804Oct 16, 2024Oct 18, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE10b5-1
10b5-1 plan
27,512$15.70$431.9K4,278,309Sep 20, 2024Sep 20, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,646,606——4,362,968May 1, 2024May 6, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
Chief Executive Officer
161,554$17.73$2.86M2,716,362Feb 16, 2024Feb 20, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
1,642,229——2,877,916Jan 31, 2024Feb 2, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
610,737$9.61$5.87M1,235,687Nov 10, 2023Nov 14, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
500,000$8.78$4.39M666,600May 1, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
21,536$9.46$203.7K239,876Apr 26, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
41,650$9.46$394.0K166,600Apr 26, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
41,650$9.46$394.0K166,600Apr 26, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
41,650$8.75$364.4K208,250Jan 30, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
41,650$8.75$364.4K208,250Jan 30, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
20,825$8.75$182.2K218,340Jan 30, 2023May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
5,000$3.82$19.1K154,175Dec 16, 2022Dec 21, 2022 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
41,650$13.11$546.0K249,900Nov 1, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
41,650$13.11$546.0K249,900Nov 1, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
21,266$13.11$278.8K192,515Nov 1, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
37,500$10.77$403.9K149,175Oct 10, 2022Oct 10, 2022 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
41,650$10.11$421.1K291,550Jul 26, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
22,074$10.11$223.2K208,749Jul 26, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
41,650$10.11$421.1K291,550Jul 26, 2022May 17, 2023 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
166,800$18.15$3.03M333,200Apr 25, 2022May 18, 2022 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
88,201$18.15$1.60M186,675Apr 25, 2022May 18, 2022 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
166,800$18.15$3.03M500,000Apr 25, 2022May 18, 2022 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
10,052$33.63$338.0K98,474Oct 5, 2021Oct 8, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
19,948$33.63$670.9K0Oct 5, 2021Oct 8, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
19,949$35.26$703.4K19,948Aug 23, 2021Aug 25, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
CEO
16,986$35.26$598.9K88,422Aug 23, 2021Aug 25, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
35,574$48.02$1.71M39,897Mar 31, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
21,296$48.02$1.02M76,436Mar 31, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
2,000$39.19$78.4K55,140Feb 12, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
19,716$2.19$43.2K57,140Feb 10, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
25,000$10.44$261.0K95,420Feb 10, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
19,949$10.44$208.3K75,471Feb 10, 2021Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
12,624$10.44$131.8K37,424Dec 31, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
15,625$10.44$163.1K15,625Dec 31, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
54,795$10.44$572.1K70,420Dec 31, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
CEO
5,000$6.50$32.5K1,235,687Dec 15, 2020Jan 2, 2024 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
15,625$1.96$30.6K31,250Sep 30, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
12,465$1.96$24.4K24,800Sep 30, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
15,625$0.91$14.2K46,875Jun 30, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASE
12,335$0.91$11.2K12,335Jun 30, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
SALE
75,000$2.04$153.0K0May 4, 2020Apr 14, 2021 ↗View →
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
62,500$2.04$127.5K62,500May 4, 2020Apr 14, 2021 ↗View →
Other insiders · MARA
Loading peer insiders…
About this filer
CIK 0001567383
ROLE
CEO
PRIMARY
MARA
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001567383DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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