Across its top 20 institutional holders, MARA's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 7/100, avg. turnover score 31/100).

Quarterly Activity

Recent Activity

+$2.0B

Total Buy Value

$1.3B

Total Sell Value

New buy69

Trim114

Add157

Sold out89

226

Net Buyers

203

Net Sellers

Smart Money Convergence

MARA does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.

13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

Filings (90d)

$1.31M

Total Est. Value

101K shares

Planned Shares

Last Filed 2026-07-17

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
Khan Salman Hassan	Officer	2026-07-17	16K shares	$174K
Thiel Frederick G	Officer, Director	2026-07-17	28K shares	$300K
MELLINGER DOUGLAS K	Director	2026-06-22	7K shares	$112K
Thiel Frederick G	Officer, Director	2026-06-17	28K shares	$392K
Khan Salman Hassan	Officer	2026-06-17	16K shares	$228K
Nowaid Zabi	Officer	2026-06-17	7K shares	$99K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

Filings (14d)

Data as of 2026-07-09

2026-07-09

MARA Holdings, through its subsidiary Volt Texas, bought a company called MAT 1177 that controls land and a 2,000-megawatt power agreement in Texas. The deal is for developing a massive data center campus for AI, cloud, and Bitcoin mining alongside Starwood Digital Ventures. The total purchase price is up to $600 million, paid out only when specific milestones like securing permits and signing a tenant lease are met.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

CUSIP

565788106

FAQ

Who are the top institutional investors holding MARA HOLDINGS INC (MARA)?

Major stakeholders currently include BlackRock, Inc. ($487.8M), Susquehanna International Group, LLP ($242.6M), Vanguard Portfolio Management LLC ($215.7M). Based on the latest 13F filings, there are a total of 404 tracked investment funds and institutions maintaining positions in MARA.

What is the overall institutional sentiment toward MARA recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $504.6M, driven by 226 managers accumulating shares while 203 reduced their exposure.

Which institutions have been selling or reducing their MARA positions?

In the latest period, 114 funds trimmed their holdings, and 89 managers completely exited their positions. The aggregate reported sell value was $1.3B.

Are there any notable investors adding MARA to their portfolios?

Yes, buying activity remains notable. 69 institutions opened new positions in {ticker}, and 157 existing holders added to their shares. The total reported buy value for the quarter amounted to $2.0B.