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Michael Carroll Berg

Director
Current role
Director · Marathon Digital
Current holdings (from latest Form 3/4/5)
Marathon Digital MARA: 56,312 shares ≈ $655.5K (0.01% of co.) (as of 2021-03-31)
Insider activity since 2018-10
Invested $1.44M (326,107 shares acquired)
↳ notional today: $3.80M
Divested $2.75M (142,398 shares sold)
↳ notional today: $1.66M
→ Net divested $1.30M
↳ net notional: ↑ $2.14M
Change since first tracked filing (not total holdings; see methodology). Prices as of 2026-09-17.

Roles

Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.

CompanyRoleTenureFilings
Marathon DigitalDirector2018-08 → present (8y 1mo)5
Show 5 underlying filings
2020-06-30 · Marathon Digital Form 4 filed 2021-04-13
View cached copy (2026-09-13)Live source ↗
2020-05-04 · Marathon Digital Form 4 filed 2020-12-03
View cached copy (2026-09-13)Live source ↗
2019-08-12 · Marathon Digital Form 4 filed 2019-08-14
View cached copy (2026-09-13)Live source ↗
2018-10-12 · Marathon Digital Form 4 filed 2018-10-17
View cached copy (2026-09-13)Live source ↗
2018-08-17 · Marathon Digital Form 3 filed 2018-10-17
View cached copy (2026-09-13)Live source ↗

Insider transactions

Totals for this person

BucketInvested (shares)Invested (USD)Divested (shares)Divested (USD)Net directionTxnsInvested @ last priceDivested @ last price
All time326,107$1.44M142,398$2.75M↓ Divested $1.30M22$3.80M$1.66M
202134,705$1.05M69,273$2.60M↓ Divested $1.54M6$404.0K$806.3K
2020191,402$391.3K73,125$151.7K↑ Invested $239.5K14$2.23M$851.2K
201950,000$0-$0Flat1$582.0K$0
2020-Q2103,650$65.7K21,875$19.9K↑ Invested $45.8K6$1.21M$254.6K
2020-Q316,331$32.0K21,875$42.9K↓ Divested $10.9K4$190.1K$254.6K
2020-Q471,421$293.6K29,375$89.0K↑ Invested $204.6K4$831.3K$341.9K
2021-Q134,705$1.05M69,273$2.60M↓ Divested $1.54M6$404.0K$806.3K

Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-09-17); they are a valuation, not a cash flow, and they move every day the market does.

All transactions

DateCompanyKindSharesAmount (USD)Value @ last price
2021-03-31Marathon DigitalDerivative conversion21,285$1,022,106$247.8K
2021-03-31Marathon DigitalSale to issuer (buyback) · RSUs35,574$1,708,263$414.1K
2021-02-17Marathon DigitalOpen-market sale10,000$462,000$116.4K
2021-02-12Marathon DigitalOpen-market sale10,000$395,600$116.4K
2021-02-10Marathon DigitalSale to issuer (buyback) · RSUs13,699$30,001$159.5K
2021-02-10Marathon DigitalDerivative conversion13,420$29,390$156.2K
2020-12-31Marathon DigitalDerivative conversion16,626$173,575$193.5K
2020-12-31Marathon DigitalSale to issuer (buyback) · RSUs21,875$42,875$254.6K
2020-12-31Marathon DigitalGrant / award / vesting · RSUs54,795$120,001$637.8K
2020-12-01Marathon DigitalOpen-market sale7,500$46,092$87.3K
2020-09-30Marathon DigitalSale to issuer (buyback) · RSUs6,250$12,250$72.8K
2020-09-30Marathon DigitalDerivative conversion10,081$19,759$117.3K
2020-09-30Marathon DigitalSale to issuer (buyback) · RSUs15,625$30,625$181.9K
2020-09-30Marathon DigitalDerivative conversion6,250$12,250$72.8K
2020-06-30Marathon DigitalDerivative conversion6,250$5,688$72.8K
2020-06-30Marathon DigitalSale to issuer (buyback) · RSUs6,250$5,688$72.8K
2020-06-30Marathon DigitalDerivative conversion9,900$9,009$115.2K
2020-06-30Marathon DigitalSale to issuer (buyback) · RSUs15,625$14,219$181.9K
2020-05-04Marathon DigitalGrant / award / vesting · RSUs25,000$51,000$291.0K
2020-05-04Marathon DigitalGrant / award / vesting · RSUs62,500-$727.5K
Show older transactions (2 more)
DateCompanyKindSharesAmount (USD)Value @ last price
2019-08-12Marathon DigitalGrant / award / vesting · Employee Stock Option (right to buy)50,000-$582.0K
2018-10-12Marathon DigitalGrant / award / vesting · Employee Stock Option (right to buy)50,000-$582.0K