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Insider Trading Intelligence
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Michael Carroll Berg

MARA
DIRECTOR · MARA HOLDINGS, INC. · CIK 0001756320
FILING MIX · LIFETIME50%/50%
BUYS
10
SELLS
10
TOTAL VALUE
$4.19M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
27,397
AVG SELL PX
$19.30
TRADE KIND
SHOWING 20 / 20
Trades · vs SPY
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Performance · forward returns vs SPY
2 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Michael Carroll Berg, 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
7d2+50.00%-8.87%-0.41%-8.46%-8.46%—
14d2+100.00%-22.58%-2.96%-19.62%-19.62%—
30d2+50.00%+0.97%+0.27%+0.70%+0.70%—
60d2+50.00%+3.41%+5.83%-2.42%-2.42%—
90d2+100.00%-50.44%+5.08%-55.52%-55.52%—
180d2+100.00%-19.78%+14.21%-33.99%-33.99%—
1y2+100.00%-38.14%+13.28%-51.42%-51.42%—
2y2+100.00%-84.36%+7.58%-91.94%-91.94%—
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 · 27,397 shares · as of Mar 31, 2021
019,16838,33557,50376,6702021SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2021
FLOW · 10 buys / 10 sellsCOVERAGE · 4 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
MARA
MARA HOLDINGS, INC.
PURCHASE
21,285$48.02$1.02M56,312Mar 31, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
35,574$48.02$1.71M27,397Mar 31, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
10,000$46.20$462.0K35,027Feb 17, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
10,000$39.56$395.6K45,027Feb 12, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
13,420$2.19$29.4K55,027Feb 10, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
13,699$2.19$30.0K62,971Feb 10, 2021Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
21,875$1.96$42.9K21,875Dec 31, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
16,626$10.44$173.6K41,607Dec 31, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
54,795$2.19$120.0K76,670Dec 31, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
7,500$6.15$46.1K12,481Dec 1, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
SALE
15,625$1.96$30.6K31,250Sep 30, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
6,250$1.96$12.3K24,981Sep 30, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
SALE
6,250$1.96$12.3K43,750Sep 30, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
10,081$1.96$19.8K19,981Sep 30, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
SALE
15,625$0.91$14.2K46,875Jun 30, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
6,250$0.91$5.7K18,731Jun 30, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASE
9,900$0.91$9.0K9,900Jun 30, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
SALE
6,250$0.91$5.7K50,000Jun 30, 2020Apr 12, 2021 ↗
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
62,500——62,500May 4, 2020Dec 3, 2020 ↗
MARA
MARA HOLDINGS, INC.
PURCHASEGRANT
Stock grant
25,000$2.04$51.0K56,250May 4, 2020Apr 12, 2021 ↗
Other insiders · MARA
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About this filer
CIK 0001756320
ROLE
Director
PRIMARY
MARA
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001756320DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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