Last updated 7/1/2026

Masayoshi SonNet Worth Estimate

Estimated Range$46.0B - $50.0B$46,000,000,000 - $50,000,000,000

Masayoshi Son is estimated to be worth about $46 billion to $50 billion, with a broader defensible range of $43 billion to $52 billion. His wealth is dominated by his SoftBank Group stake.

Image: European Communities, 2025 / EC - Audiovisual ServiceCreative Commons Attribution 4.0

Drivers

Wealth Breakdown

8 reviewed sources7 high-quality sources

Wealth composition$47,600,000,0003 sources

Founder equity1 input · 3 sources · 88/100 confidenceIncluded$47,600,000,000

Not Counted Directly

Founder equityContext only · $11,437,447,941,000External estimatesContext only · $44,500,000,000

Estimate

Current Assessment

SoftBank reports Son as its founder-led chairman and CEO and its largest disclosed shareholder, with 1.8655 billion shares as of March 31, 2026. Bloomberg valued him at $47.6 billion in May 2026 and notes that pledged SoftBank shares and liabilities tied to SB Northstar, Vision Fund 2, and LatAm funds affect the calculation. The estimate uses that liability-aware external valuation as the anchor and treats the gross market value of his SoftBank stake only as a cross-check.

Key caveats

SoftBank's share price can move the estimate materially.
Some Son-linked investment liabilities are disclosed in complex related-party filings and cannot be reduced to one clean public number.
Corporate holdings such as Arm and OpenAI are not added directly to Son's wealth because they are reflected through SoftBank's market value.

Evidence gaps

Exact July 1, 2026 Bloomberg or Forbes real-time wealth value was not accessible.
Current personal borrowing, tax liabilities, and private assets are not fully public.

Confidence

Medium confidence

78/100

The estimate is supported by available evidence, with meaningful assumptions and caveats.

Key Evidence Gaps

Exact July 1, 2026 Bloomberg or Forbes real-time wealth figure.
Official Tokyo Stock Exchange July 1, 2026 closing price for SoftBank Group and matching USD/JPY rate.
Underlying December 2025 SoftBank filing cited by Bloomberg for 35% control, pledged-share details, and liability treatment.
Current complete personal borrowing, tax liabilities, private assets, and any updated co-investment settlement balances.

Public Caveats

Estimate anchored to Bloomberg's $47.6B net-worth figure dated May 15, 2026, not an exact July 1, 2026 real-time wealth mark.
SoftBank Group's March 31, 2026 shareholder table reports Son held 1.8655B shares, but gross stake value is not personal net worth because of pledges, liabilities, taxes, and liquidity limits.
Bloomberg reports pledged-share exclusions and liability treatment; the underlying December 2025 filing cited by Bloomberg was not included in the persisted evidence set.
Son-linked SVF2, LatAm, and SB Northstar exposures are supported by SoftBank filings but cannot be reduced to one current public liability number from the supplied artifacts.

Range Model

Scenario Spread

Conservative

$38.0B - $46.0B

Base

$46.0B - $50.0B

Aggressive

$50.0B - $60.0B

Uncertainty Drivers

SoftBank Group share price and USD/JPY movement after the accessible May 2026 market and Bloomberg snapshots
Exact amount and current treatment of pledged SoftBank shares and loan balances
Current value and settlement mechanics of SVF2, LatAm, and SB Northstar obligations
Private cash, real estate, taxes, and personal borrowing are not fully disclosed
SoftBank's valuation is increasingly sensitive to AI, Arm, and OpenAI market sentiment

Evidence

Reviewed Signals

Signal	Value	Confidence
Secondary external estimate Investopedia's 2026 external estimate of Son's wealth.	$44,500,000,000	55/100
AI strategy and SoftBank valuation volatility Recent reporting underscores that Son's wealth remains highly sensitive to SoftBank's market valuation and AI investment narrative.	n/a	72/100
SB Northstar guarantees Qualitative filing evidence that Son and related entities guarantee or indemnify certain SB Northstar obligations in proportion to ownership interests.	n/a	82/100
LatAm related-party receivable exposure SoftBank FY2025 reported net balance related to MASA USA LLC/MgmtCo in LatAm Funds co-investment structure.	$680,275,000	87/100
SVF2 related-party receivable exposure SoftBank FY2025 reported net balance related to MASA USA LLC/MgmtCo in SVF2 co-investment structure.	$3,047,509,000	88/100
Bloomberg personal net worth estimate Bloomberg's personal net worth estimate, centered on SoftBank Group equity after excluding pledged shares and including investment-related liabilities.	$47,600,000,000	89/100
Gross SoftBank Group shareholding value Primary disclosed share count multiplied by accessible SoftBank Group market quote before deductions for pledged shares, debt, taxes, and liquidity.	¥11,437,447,941,000	78/100

Citations

Sources

SoftBank: What It Means, History, Masayoshi SonTier 3
SoftBank's Son Sets Bold Net Asset Value Target on Promise of 'Super AI'Tier 2
SoftBank Group Corp (9984) Stock Price & NewsTier 2
Bloomberg Billionaires Index - Masayoshi SonTier 2
Financial Report 2025Tier 1
SoftBank Group Report 2025Tier 1
OwnershipTier 1
Board of DirectorsTier 1

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Correction

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