DFX Intelligence
Family Office Intelligence
A continuously maintained graph of U.S. family offices: identity, team, observed investments, public holdings, relationships and dated signals of change. Facts, inferences and estimates are labelled as such, with the source and the date, on every row. Unknown is printed as unknown.
Family office profile
A••••• C••••••
The office, people and counterparty names on this page are hidden. Create a free account and they fill in. No card, and every figure, date and source on this page is public either way.
400 Madison Avenue, 8th Floor, New York, NY 10017Family investment companyidentity confidence 70%Top 500 by research priority
Why this class: a filing by a third party describes it as a family investment company (cited).
Verified Sep 16, 2026 (5 days ago)
Last observed Sep 19, 2026 · 15 observations · 3 sources
0 people · 3 investments · 0 public positions · 5 events
Direct investing
30
moderate
External managers
20
moderate
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: private markets, sponsor-friendly, real estate, co-investment.
Overviewshow
Profile completeness 41% (high value, high value shallow; the most valuable missing fact is contacts)
identityclassificationwealth origincapital-scale evidencepeoplecontactsmandatedirect investmentsfund relationshipsco-investorssponsor relationshipsreal estatepublic holdingsrecent eventsprovenancefreshness
- Classification
- Family investment company
- Description
- Filed nine consecutive quarterly Form 13F-HR institutional-investment-manager reports with the SEC from February 2008 through February 2010
- Headquarters
- 400 Madison Avenue, 8th Floor, New York, NY 10017
- 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 14, 2026Family investment company 70%a filing by a third party describes it as a family investment company (cited)Fact
- Sep 14, 2026Candidate 25%no rule matched; held as a candidate pending researchInference
Family and wealth originshow
- Family served
- R•••••• family
- Source of wealth
- unknown
- Operating company origin
- unknown
Teamshow
No current professionals on the record.
Former
R••• I••••••, Principal, until Sep 16, 2026
Investment mandateshow
3 i••••••••• on the record (public equity, commodities/gold); sectors: mining, financials; last deal 2009-12-31. stated: Diversified single-stock book spanning financials, mining, pharmaceuticals and technology, including J••••••• C••••, N•••••• M•••••, G•••corp, Freeport-McMoRan, Rackspace Hosting, Marvell Technology and Nuance Communicat
Stated (their words, cited)
- Asset classes
- Diversified single-stock book spanning financials, mining, pharmaceuticals and technology, including J••••••• C••••, N•••••• M•••••, G•••corp, Freeport-McMoRan, Rackspace Hosting, Marvell Technology and Nuance Communications, held with sole voting and investment discretion Fact sec.gov“JPMORGAN CHASE & CO CMN”
Observed (from the investment record)
- States
- none Fact
- Control
- unknown (3) Fact
- Sectors
- mining (1), financials (1) Fact
- Subsectors
- none Fact
- Co investors
- none Fact
- Asset classes
- public equity (2), commodities/gold (1) Fact
- Direct vs fund
- Fund: 1 · Direct: 2 · Real estate: 0 Fact
- Sponsors backed
- none Fact
- Investment count
- 3 Fact
- Investment kinds
- public equity position, sole voting/investment discretion (Form 13F) (2), public ETF position, sole voting/investment discretion (Form 13F) (1) Fact
- First and last deal
- Last: 2009-12-31 · First: 2009-12-31 Fact
- Lead vs participant
- unknown (3) Fact
- Disclosed check sizes
- Max: $8.6M · Min: $2.1M · Count: 3 Factamounts are only what a source disclosed; never backsolved from a round
Inferred (regulatory shape and team)
Nothing to infer from.
- Invests directly
- unknown
- Allocates to managers
- unknown
- Asset classes
- Diversified single-stock book spanning financials, mining, pharmaceuticals and technology, including J••••••• C••••, N•••••• M•••••, G•••corp, Freeport-McMoRan, Rackspace Hosting, Marvell Technology and Nuance Communications, held with sole voting and investment discretion
- Sectors
- unknown
- Geography
- unknown
- Check size
- unknown
Direct investments2 dealsshow
| Date | Company | Kind | Sector | Role | Amount | With | Source |
|---|---|---|---|---|---|---|---|
| Dec 31, 2009 | N•••••• M••••• C••••••••• | Public equity position, sole voting/investment discretion (Form 13F) | mining | unknown | $2.3M | none named | sec.gov Fact “N•••••• M••••• C••••••••• CMN” |
| Dec 31, 2009 | J••••••• C•••• • C•• | Public equity position, sole voting/investment discretion (Form 13F) | financials | unknown | $2.1M | none named | sec.gov Fact “JPMORGAN CHASE & CO CMN” |
Fund and manager relationshipsshow
- S••• G••• T•••• •••• Public ETF position, sole voting/investment discretion (Form 13F) · Dec 31, 2009 · $8.6M sec.gov
Public stakes and holdingsshow
Form 13F holdings
No 13F filing on the record for this office.
Real estateshow
No documented real estate ownership link. A property is attributed to an office only through a documented control relationship, never from a surname.
Co-investorsshow
No co-investor on the record.
Independent sponsor relationshipsshow
No cited relationship to an independent sponsor.
Related entitiesshow
Signals and timeline5show
Most significant first: what kind of change it is, its size, whose change it is, and how recent. 5 events. 13F position changes are under Public stakes and holdings.
- Sep 3, 2025Office discoveredA••••• C•••••• described on SEC filings as 'family investment office' (10-K, 10-K/A, 8-K, DEF 14A, S-1)DiscoveryFactsec.gov
- Sep 14, 2026Classification changedA••••• C••••••: CANDIDATE_FAMILY_OFFICE -> FAMILY_INVESTMENT_COMPANY (a filing by a third party describes it as a family investment company (cited))c•••••••••Factno URL
- Dec 31, 2009Fund commitment disclosedA••••• C•••••• invested in S••• G••• T•••• ••••Fund relationshipsFactsec.gov
- Dec 31, 2009Direct investmentA••••• C•••••• invested in N•••••• M••••• C•••••••••Direct investmentsFactsec.gov
- Dec 31, 2009Direct investmentA••••• C•••••• invested in J••••••• C•••• • C••Direct investmentsFactsec.gov
Sources and evidence15show
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••••••••• (4 days)
Contactability
no components; scored 0
Data confidence
+10 d•••••••••
+10 s••••• m••••••
+15 i•••••••••
+15 i••••••••• s•••••• (3 sources)
Active deployment
no components; scored 0
Exists confidence
+30 i••••••••• s•••••• (3 sources)
+30 a•••••••••
Research priority
+15 s••••• f••••• o• f••••• i••••••••• c••••••
+6 d••••• i••••••••• o• r•••••
+5 n• d••••••••• y•• •••••••• w•••• a•• o•••
+2 n• w•••••• k•••• •••••••• w•••• f••• o•••
+0 r••• (260)
Mandate confidence
+30 m•••••• s•••••••• b• o••••••• i•••••••••
+20 s••••• m•••••• o• t•• r•••••
Identity confidence
+70 c••••••••• (FAMILY_INVESTMENT_COMPANY (a filing by a third party describes it as a family investment company (cited)))
Real estate propensity
no components; scored 0
Co investment propensity
no components; scored 0
Family identity confidence
+40 f••••• n•••• (R•••••• family)
Private markets propensity
no components; scored 0
Current activity confidence
no components; scored 0
External manager propensity
+20 f••• o• m•••••• r•••••••••
Direct investment propensity
+30 o••••••• d••••• i••••••••• (2 on the record)
Independent sponsor propensity
no components; scored 0
| Fact | Value | Effective | Source | Class |
|---|---|---|---|---|
| Asset classes | Largest reported position was S••• G••• Trust ETF at $8,584,800 (about 15% of the reported book), a gold/commodity hedge alongside single-stock equities “S••• GOLD TRUST ETF” | Dec 31, 2009 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Asset classes | Diversified single-stock book spanning financials, mining, pharmaceuticals and technology, including J••••••• C••••, N•••••• M•••••, G•••corp, Freeport-McMoRan, Rackspace Hosting, Marvell Technology and Nuance Communications, held with sole voting and investment discretion “JPMORGAN CHASE & CO CMN” | Dec 31, 2009 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Aum stated | $57,615,201.50 in reportable U.S. equity, option and warrant positions as of December 31, 2009 “$57,615,201.50” | Dec 31, 2009 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Decision rights | The 2009 Form 13F reports zero other included managers, meaning A••••• C•••••• Management, LLC itself held sole voting and investment discretion over the entire reported book “Number of Other Included Managers:” | Dec 31, 2009 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Description | Filed nine consecutive quarterly Form 13F-HR institutional-investment-manager reports with the SEC from February 2008 through February 2010 “Report for the Calendar Year or Quarter Ended: 12/31/2009” | Sep 16, 2026 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Description | Filed nine consecutive quarterly Form 13F-HR institutional-investment-manager reports with the SEC from February 2008 through February 2010 “Report for the Calendar Year or Quarter Ended: 12/31/2009” | Sep 15, 2026 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Edgar fts discovery | family investment office | Sep 3, 2025 | SEC EDGAR full-text search (a filing sentence that says what an entity is, quoted with its URL) sec.gov | Fact |
| Family served | R•••••• family “Hart was Chief Financial Officer and Chief Investment Officer at A••••• C••••••, a family investment office for the R•••••• Orthopedic Group at the Hospital for Special Surgery, where he was responsib” | n/a | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Headquarters | 400 Madison Avenue, 8th Floor, New York, NY 10017 “400 Madison Avenue, 8th Floor” | Feb 12, 2010 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Legal entity | Files with the SEC as A••••• C•••••• Management, LLC (CIK 0001426933) “A••••• C•••••• Management, LLC” | Feb 12, 2010 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Legal entity | Registered with the SEC as an institutional investment manager under Form 13F File Number 28-12970 “Form 13F File Number: 28-12970” | Feb 12, 2010 | DFX analyst research (General-assisted, every claim URL-cited) sec.gov | Fact |
| Office type (stated) | family_investment_company | Sep 3, 2025 | SEC EDGAR full-text search (a filing sentence that says what an entity is, quoted with its URL) sec.gov | Fact |
| Website search | not_found | Sep 19, 2026 | DFX model output (c••••••••• rules, scores, mandates, matches) no URL | Inference |
| Website search | not_found | Sep 16, 2026 | DFX model output (c••••••••• rules, scores, mandates, matches) no URL | Inference |
| Website search | not_found | Sep 14, 2026 | DFX model output (c••••••••• rules, scores, mandates, matches) no URL | Inference |