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M••••• F••••• O•••••

Single family office (confirmed)

Single family office (confirmed).

Composed from this office's classification, location and record.

Decision makers
2 of 2
The office's site, Form ADV Schedule A and filings
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Mandate
As of · the latest observation of this office; filed figures carry their own filing dates

Nothing material in the last 365 days. Last change: 15 Sep 2026, ••• Locked.

Readings, classification basis and verificationidentity confidence 85% · 15 observations · 2 sourcesShow
Single family office (confirmed)Verified Sep 21, 2026 (3 days ago)2 people · 0 investments · 0 public positions · 3 events

Why this class: L••••• M•••••'s own biography site (independent of our_source_url, a NextNav 8-K press release about a separate M-Cor Capital transaction) has a dedicated 1979-present timeline entry for the 'M••••• F••••• O•••••,' describing it as a family office the brothers established to manage their own investments..

Private markets
10
low

Each reading is 0 to 100 from the listed components in the evidence section; hover a tile for what it measures. No evidence yet of: direct investing, external managers, sponsor-friendly, real estate, co-investment.

Profile completeness 38% (high value, high value shallow; the most valuable missing fact is direct investments)
identityclassificationwealth origincapital-scale evidencepeoplecontactsmandatedirect investmentsfund relationshipsco-investorssponsor relationshipsreal estatepublic holdingsrecent eventsprovenancefreshness
Overview
show
Classification
Single family office (confirmed)
Description
unknown
Headquarters
unknown
Office address
unknown
Business phone
unknown
Website
unknown
Year established
unknown
Assets under management
unknown
Capital scale
Reported office AUM: unknown. No public number of any kind.
Classification history
  • Sep 15, 2026Single family office (confirmed) 85%L••••• M•••••'s own biography site (independent of our_source_url, a NextNav 8-K press release about a separate M-Cor Capital transaction) has a dedicated 1979-present timeline entry for the 'M••••• F••••• O•••••,' describing it as a family office the brothers established to manage their own investments.Factverifiedlowellmilken.com“••• Locked”
  • Sep 13, 2026Single family office (confirmed) 75%NextNav's SEC-filed press release names M-Cor Capital as the investment arm of the M••••• F••••• O•••••, the office of the M••••• family.Factverifiedsec.gov“••• Locked”
  • Sep 12, 2026Single family office (probable) 70%a press release by Trousdale Ventures describes it as a single family office (cited)Fact
Family and wealth origin
show
Family served
M••••• family
Source of wealth
••• Locked
Operating company origin
L••••• and Michael M•••••, with Larry Ellison, co-founded Knowledge Universe, a $1 billion-capitalized global education enterprise
Team
2 people, 2 with investment decisions, decision makers firstshow
PersonTitleResponsibilityBusiness contactSource
J••• L••••withheld-1Chief investment officer · investment decisionsnone on record
L••••• M••••• familyFounder, family office; Chairman, M••••• Family FoundationFamily principal · investment decisionsnone on record
Signals and timeline
3show

Most significant first: what kind of change it is, its size, whose change it is, and how recent. 3 events. 13F position changes are under Public stakes and holdings.

  • Sep 13, 2026Classification changed••• Lockedc•••••••••Factsec.gov
  • Dec 8, 2025Office discovered••• LockedDiscoveryFactprnewswire.com
  • Sep 15, 2026Classification changed••• Lockedc•••••••••Factlowellmilken.com
Investment mandate
show

••• Locked

Stated (their words, cited)
Asset classes
••• Locked Inference paulweiss.com
“••• Locked”
Check size high usd
••• Locked Fact paulweiss.com
“••• Locked”
Observed (from the investment record)
No investments on the record yet, so nothing is observed.
Inferred (regulatory shape and team)
Nothing to infer from.
Invests directly
unknown
Allocates to managers
unknown
Asset classes
The investment arm deploys capital into private credit (senior secured convertible notes) and venture equity in healthcare/technology
Sectors
unknown
Geography
unknown
Check size
Not disclosed to $50.0M
Direct investments
show
No substantiated direct investment on the record. Absence here is absence of evidence, not evidence of absence.
Fund and manager relationships
show
No fund commitment or manager relationship on the record. Commitment amounts are shown only when public.
Public stakes and holdings
show
Form 13F holdings
No 13F filing on the record for this office.
Real estate
show
No documented real estate ownership link. A property is attributed to an office only through a documented control relationship, never from a surname.
Co-investors
show
No co-investor on the record.
Independent sponsor relationships
show
No cited relationship to an independent sponsor.
Related entities
show
Sources and evidence
15show

Every observation behind this profile: the value, when it was effective, the source, the quote where there is one, and whether it is a fact, an inference or an estimate. 15 shown.

Score components
Freshness
+100 d••• s•••• t•• n••••• s••••••••• f••• o• a•••••• v••••••••• (1 day)
Contactability
+30 n•••• d••••••••• (••• Locked)
Data confidence
+10 s••••• m••••••
+10 p•••••
+10 i••••••••• s•••••• (2 sources)
Active deployment
no components; scored 0
Exists confidence
+20 i••••••••• s•••••• (2 sources)
+30 a•••••••••
Research priority
+15 s••••• f••••• o• f••••• i••••••••• c••••••
+2 n• w•••••• k•••• •••••••• w•••• f••• o•••
+0 r••• (1204)
Mandate confidence
+20 s••••• m•••••• o• t•• r•••••
Identity confidence
+85 c••••••••• (••• Locked)
Real estate propensity
no components; scored 0
Co investment propensity
no components; scored 0
Family identity confidence
+60 w••••• o••••• o• o•••••••• c•••••• o• t•• r•••••
+40 f••••• n•••• (M••••• family)
+20 f••••• p•••••••• o• s••••
Private markets propensity
+10 s••••• v••••••
Current activity confidence
+25 a• s••••••••• f••• w••••• 1• m••••• (288 days)
External manager propensity
no components; scored 0
Direct investment propensity
no components; scored 0
Independent sponsor propensity
no components; scored 0
View all 15 observations
FactValueEffectiveSourceClass
Asset classes••• Locked
“••• Locked”
Mar 12, 2025DFX analyst research (General-assisted, every claim URL-cited) paulweiss.comInference
Check size (high)••• Locked
“••• Locked”
Mar 12, 2025DFX analyst research (General-assisted, every claim URL-cited) paulweiss.comFact
Decision rights••• Locked
“••• Locked”
Sep 21, 2026DFX analyst research (General-assisted, every claim URL-cited) redcellpartners.comInference
Family involvement••• Locked
“••• Locked”
Sep 21, 2026DFX analyst research (General-assisted, every claim URL-cited) lowellmilken.comFact
Family servedM••••• family
“••• Locked”
n/aDFX analyst research (General-assisted, every claim URL-cited) lowellmilken.comFact
Legal entity••• Locked
“••• Locked”
Mar 12, 2025DFX analyst research (General-assisted, every claim URL-cited) paulweiss.comFact
Office type (stated)Single family office
“••• Locked”
Sep 15, 2026DFX analyst research (General-assisted, every claim URL-cited) lowellmilken.comFact
Office type (stated)Single family office
“••• Locked”
Sep 13, 2026DFX analyst research (General-assisted, every claim URL-cited) sec.govFact
Office type (stated)Single family officeDec 8, 2025PR Newswire releases that name a family office (discovery and investment records, quoted) prnewswire.comFact
Office type (stated)Single family officeDec 8, 2025PR Newswire releases that name a family office (discovery and investment records, quoted) prnewswire.comFact
Operating company origin••• Locked
“capitalized with $1 billion”
Sep 21, 2026DFX analyst research (General-assisted, every claim URL-cited) lowellmilken.comFact
Philanthropy program••• Locked
“directed by Chairman L••••• M•••••”
Sep 21, 2026DFX analyst research (General-assisted, every claim URL-cited) mff.orgFact
Source of wealth••• Locked
“••• Locked”
Sep 21, 2026DFX analyst research (General-assisted, every claim URL-cited) lowellmilken.comFact
Website searchNot foundSep 16, 2026DFX model output (c••••••••• rules, scores, mandates, matches) no URLInference
Website searchNot foundSep 14, 2026DFX model output (c••••••••• rules, scores, mandates, matches) no URLInference

Not yet on record: direct investments, capital scale, last deployment.