PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 10:33 AM ET

Sponsor Check › Sponsor group

H

Hadron

One sponsor team, 2 deal companies · Grand Cayman, Cayman Islands (as filed: E9)

Grouped because: 5 shared people, similar issuer names (2) · 2 issuers also list a director who sits on many unrelated issuers (not used to group) (automatic match from the filings) · not the same sponsor?

2deal companies
$7.22Mreported sold
6investors
17Form D filings
2011–2020active
0new, last 12 mo
Follow this sponsor groupLook further ↓

Data last updated Oct 23, 2026, 5:45 PM ET · Latest filing in this group Apr 6, 2020 · Courts (RECAP) last checked: Oct 24, 2026, 2:16 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Hadron is a sponsor group of 2 issuers that PartnerFacts links to one sponsor (shared people, shared principal (person on 60+ issuers) at the same address or management entity, similar issuer names; automatic match from the filings), filing 17 Form D filings between Feb 2011 and Apr 2020.

What this means One team, 2 deal companies, about 9 years of track record in SEC filings. We link the companies because the same people or address appear on their forms — tap "Request a correction" if that is wrong.

Combined reported sold: $7.22M to 6 investors (latest filing per issuer). Industries as reported: Pooled Investment Fund (2). Issuers are based in Cayman Islands (as filed: E9) (2).

What this means $7.22M raised across the group, about $1.2M per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.

Principal people: David McGeough (2 issuers, director), David Sheppard (2 issuers, director), Marco D'Attanasio (2 issuers, director), Margus Ehatamm (2 issuers, director), Sean Flynn (2 issuers, director) and 4 more.

What this means The person on the most companies is usually the one running the show; their page lists every deal.

Activity: 0 new offerings in the last 12 months; latest filing Apr 6, 2020.

What this means No new raise filed in the past year.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AK, AL, AR, AZ, CA, CO, CT, DC, DE, FINRA, FL, GA, HI, ID, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NASAA, NC, ND, NH, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, WA, WI, WV, WY), property records (NYC, FL, IL and TX counties) — 5 court cases matching the name listed in Key records below.

What this means 5 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.

We compared 17 public filings for Hadron and found 18 differences, 7 worth asking the sponsor about: 6 offerings reported less sold on a later filing than an earlier one; Investor count went down between filings; and more below.

What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.

What the community is saying

Community search for Hadron has not run yet — it is joining a line of 56,307 names; searches run around the clock at the hosts' allowed rate. Searched so far: 641 names.

Community comments are quoted as written by their authors. Sources searched: Bing (site:reddit.com / site:biggerpockets.com) and Reddit's own search, plus DuckDuckGo/Brave/BiggerPockets search when they are answering.

Key records

Five things investors ask first. Items still in human review are counted, not shown.

1. Lawsuits

5 cases: 3 dismissed, 1 judgment, 1 closed (disposition not in docket feed)

Michael J Jordan v. Hadron Inc dismissed matched at sponsor-group level (Hadron)
District Court, C.D. California · No. 2:96-cv-02774 · Filed Apr 18, 1996 · Closed Sep 17, 1996 · Nature of suit: 791 Employee Retirement Income Security Act
Role of Hadron Inc: Defendant · Outcome: Terminated 1996-09-17 — FJC Integrated Database disposition: Dismissed: settled Docket on CourtListener ↗
exact company name; name has one distinctive word; court in CA (not the issuer's state)
FDIC v. Hadron, Inc. dismissed matched at sponsor-group level (Hadron)
District Court, E.D. Virginia · No. 1:94-cv-00921 · Filed Jul 13, 1994 · Closed Oct 4, 1994 · Nature of suit: 140 Negotiable instruments
Role of Hadron, Inc.: Defendant · Outcome: Terminated 1994-10-04 — FJC Integrated Database disposition: Voluntarily dismissed Docket on CourtListener ↗
exact company name; name has one distinctive word; court in VA (not the issuer's state); filed 1994, first Form D 2011
FDIC/Washington Bank v. Hadron, Inc. dismissed matched at sponsor-group level (Hadron)
District Court, E.D. Virginia · No. 1:94-cv-00920 · Filed Jul 13, 1994 · Closed Oct 4, 1994 · Nature of suit: 140 Negotiable instruments
Role of Hadron, Inc.: Defendant · Outcome: Terminated 1994-10-04 — FJC Integrated Database disposition: Dismissed: other Docket on CourtListener ↗
exact company name; name has one distinctive word; court in VA (not the issuer's state); filed 1994, first Form D 2011
AQUIDNECK ASSO v. HADRON INC judgment matched at sponsor-group level (Hadron)
District Court, D. Rhode Island · No. · Filed Jul 18, 1988 · Closed Apr 4, 1989 · Nature of suit: 190 Other contract actions
Role of HADRON INC: Defendant · Outcome: Terminated 1989-04-04 — FJC Integrated Database disposition: Judgment on motion before trial; judgment for plaintiff Docket on CourtListener ↗
exact company name; name has one distinctive word; court in RI (not the issuer's state); filed 1988, first Form D 2011
CENTENNIAL SYSTEMS v. HADRON, INC. closed matched at sponsor-group level (Hadron)
District Court, District of Columbia · No. 1:86-cv-02269 · Filed Aug 18, 1986 · Closed Oct 23, 1986
Role of HADRON, INC.: Defendant · Outcome: Terminated 1986-10-23 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
exact company name; name has one distinctive word; court in DC (not the issuer's state); filed 1986, first Form D 2011
What was searched

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30; recall-first rule 10-24) — federal district + bankruptcy courts State courts: not covered (one-tap state court links under Look further). PACER: not searched. · Last checked Oct 24, 2026, 2:16 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

2. Regulatory actions

None found in sources searched — SEC enforcement releases (index scan as of Oct 24, 2026, 2:50 AM ET) · state securities regulators: 48 regulators (FINRA, NASAA, 37 states) — crawled Oct 24, 2026, 8:48 AM ET

What was searched

SEC enforcement searched: SEC litigation releases and administrative proceedings — respondent names in the sec.gov index titles (30,205 releases, 1995-09-19 to 2026-10-23); release text is read only to confirm a candidate. Names that appear only in the body of a release are not found. — Searched SEC litigation releases and administrative proceedings (1995→ / 2007→) (30,205 records as of Oct 24, 2026, 2:50 AM ET) — nothing matched Hadron..

State securities regulators: Securities regulators searched (64,910 actions): FINRA (38,350 actions, 1995–2026), NASAA (31 actions, 2000–2026; listing starts 1997), AK Division of Banking and Securities (273 actions, 1971–2025), AL Securities Commission (880 actions, 2001–2026), AR Securities Department (1,305 actions, 1998–2026), AZ Corporation Commission Securities Division (411 actions, 2017–2026), CA DFPI (25 actions, 2007–2024; listing starts 2002 — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), CO Division of Securities (731 actions, 2001–2026; older years from the Internet Archive (snapshot of 2026-05-02)), CT Department of Banking Securities Division (940 actions, 2006–2026; older years from the Internet Archive (snapshot of 2026-04-22)), DC DISB Securities Bureau (25 actions, 2012–2026), DE DOJ Investor Protection Unit (257 actions, 1987–2026), FL Office of Financial Regulation (49 actions, 2018–2026), GA Secretary of State Securities Division (65 actions, 2015–2026; listing starts 2012), HI DCCA Securities Enforcement Branch (26 actions, 2012–2026), ID Department of Finance Securities Bureau (663 actions, 1994–2026), IL Secretary of State Securities Department (4,122 actions, 2003–2023), KS Insurance Department Securities Division (58 actions), KY Department of Financial Institutions (342 actions, 2005–2026), LA Office of Financial Institutions Securities Division (13 actions, 2010–2025; listing starts 2008), MA Secretary of the Commonwealth Securities Division (125 actions, 2012–2025; live site blocks automated access — loaded from the Internet Archive snapshot of 2026-02-04), MD Attorney General Securities Division (1,054 actions, 2004–2026), ME Office of Securities (539 actions, 2000–2026), MI LARA Corporations, Securities & Commercial Licensing Bureau (201 actions), MO Secretary of State Securities Division (919 actions, 1998–2026), MS Secretary of State Securities Division (209 actions, 1995–2026), MT Commissioner of Securities and Insurance (597 actions, 2000–2026), NC Secretary of State Securities Division (265 actions, 2004–2024), ND Securities Department (711 actions, 1990–2026; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2026-01-06), NH Bureau of Securities Regulation (402 actions, 2002–2026), NM Regulation and Licensing Department Securities Division (90 actions, 2010–2025), NV Secretary of State Securities Division (118 actions, 2018–2026), NY Attorney General Investor Protection Bureau (44 actions, 2012–2026), OH Division of Securities (327 actions, 1993–2006), OK Department of Securities (2,531 actions, 1998–2026), OR Division of Financial Regulation (589 actions, 1988–2026), PA Department of Banking and Securities (1,448 actions, 2008–2024; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2024-08-09), RI DBR Securities Division (98 actions, 2005–2025), SC Attorney General Securities Division (540 actions, 2006–2026), SD Division of Insurance – Securities Regulation (106 actions, 2017–2026), TN Department of Commerce and Insurance Securities Division (405 actions, 1992–2026), TX State Securities Board (936 actions, 1999–2026), UT Division of Securities (772 actions, 2000–2026; older years from the Internet Archive (snapshot of 2010-05-27)), VT DFR Securities Division (137 actions, 2010–2026), WA DFI (2,039 actions, 2001–2026), WI DFI Division of Securities (1,072 actions, 1998–2026), WV Securities Commission (State Auditor) (64 actions), WY Secretary of State Compliance Division (6 actions, 2016–2024) — last crawled Oct 24, 2026, 8:48 AM ET. No machine-readable public listing today for IA, IN, MN, NE, NJ, VA (see docs/state-regulators.md).

3. Bankruptcies

None found in sources searched — federal bankruptcy courts (CourtListener / RECAP), checked Oct 24, 2026

What was searched

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not covered (one-tap state court links under Look further). PACER: not searched (RECAP only). · Last checked Oct 24, 2026, 2:16 AM ET.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

4. Differences between public sources

No comparisons published

What is compared

No public statement by this sponsor group has been collected yet, so there is nothing to compare. Sources compared: the sponsor's own website (known from the issuer's own filings — Form C issuer website, EDGAR company profile — an approved profile claim or Form ADV Item 1.I of its matched adviser) · SEC Form D · SEC Form ADV (IAPD) · Internet Archive · No website is on file for this sponsor group yet.

18 differences found between the filings for Hadron — 7 worth asking about (compared 17 filings on Oct 24, 2026)

Worth asking · Feb 16, 2011 – Apr 5, 2019

6 offerings reported less sold on a later filing than an earlier one

Amount sold went down between filings — Hadron Fund · Amount sold went down between filings — Hadron Fund L.P. · Amount sold went down between filings — Hadron Fund L.P. · Amount sold went down between filings — Hadron Fund · Amount sold went down between filings — Hadron Fund · and 1 more

What this means Amounts sold normally only go up. Ask the sponsor what happened on each.

Form D/A (earlier) · Apr 6, 2018 ↗Form D/A (later) · Apr 5, 2019 ↗Hadron Fund — PartnerFacts page ↗Form D/A (earlier) · Jan 22, 2016 ↗
Sources
Worth asking · Apr 6, 2018 – Apr 5, 2019

Investor count went down between filings — Hadron Fund

The Apr 6, 2018 filing reports 3 investors; the Apr 5, 2019 Form D/A reports 0 investors.

What this means Investor counts normally only grow. A smaller number can mean investors left or were refunded, or a count was corrected. Ask the sponsor what happened.

Form D/A (earlier) · Apr 6, 2018 ↗Form D/A (later) · Apr 5, 2019 ↗Hadron Fund — PartnerFacts page ↗
Sources
Worth asking · Apr 7, 2014 – Apr 7, 2015

Investor count went down between filings — Hadron Fund

The Apr 7, 2014 filing reports 3 investors; the Apr 7, 2015 Form D/A reports 2 investors.

What this means Investor counts normally only grow. A smaller number can mean investors left or were refunded, or a count was corrected. Ask the sponsor what happened.

Form D/A (earlier) · Apr 7, 2014 ↗Form D/A (later) · Apr 7, 2015 ↗Hadron Fund — PartnerFacts page ↗
Sources
Worth asking · Jan 24, 2014 – Jan 23, 2015

Investor count went down between filings — Hadron Fund L.P.

The Jan 24, 2014 filing reports 3 investors; the Jan 23, 2015 Form D/A reports 2 investors.

What this means Investor counts normally only grow. A smaller number can mean investors left or were refunded, or a count was corrected. Ask the sponsor what happened.

Form D/A (earlier) · Jan 24, 2014 ↗Form D/A (later) · Jan 23, 2015 ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Worth asking · Oct 1, 2010 – Apr 5, 2011

Form D filed 186 days after the first sale — Hadron Fund

The filing says the first sale was Oct 1, 2010. The Form D was filed Apr 5, 2011 — 186 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 171 days past that.

What this means The notice went in months after money was taken in. Late notices are common and carry no penalty by themselves, but it is fair to ask the sponsor why the paperwork lagged.

Form D · Apr 5, 2011 ↗Hadron Fund — PartnerFacts page ↗
Sources
Note · Oct 1, 2010 – Apr 6, 2020

No amendment in the last 12 months on an offering that may still be open — Hadron Fund (latest filing Apr 6, 2020)

The latest filing for this offering is dated Apr 6, 2020 (first sale Oct 1, 2010). It reports $7,200,562 sold of an indefinite amount offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D/A · Apr 6, 2020 ↗Hadron Fund — PartnerFacts page ↗
Sources
Note · Feb 1, 2011 – Jan 23, 2017

No amendment in the last 12 months on an offering that may still be open — Hadron Fund L.P. (latest filing Jan 23, 2017)

The latest filing for this offering is dated Jan 23, 2017 (first sale Feb 1, 2011). It reports $22,981 sold of an indefinite amount offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D/A · Jan 23, 2017 ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Worth asking · Apr 5, 2013 – Jan 23, 2015

6 people are no longer listed on a later amendment

Sean Flynn is no longer listed on the Jan 23, 2015 amendment — Hadron Fund L.P. · Marco D'Attanasio is no longer listed on the Jan 23, 2015 amendment — Hadron Fund L.P. · Hadron General Partner Ltd. is no longer listed on the Jan 23, 2015 amendment — Hadron Fund L.P. · Patrick Harrigan is no longer listed on the Apr 7, 2014 amendment — Hadron Fund · Sean Flynn is no longer listed on the Apr 7, 2014 amendment — Hadron Fund · and 1 more

What this means People leave; the issuer lists only current officers, directors and promoters. Ask why and who replaced them.

Form D/A · Jan 24, 2014 ↗Form D/A · Jan 23, 2015 ↗Sean Flynn — PartnerFacts page ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Jan 22, 2016 – Jan 23, 2017

Margus Ehatamm's role changed at Hadron Fund L.P.: executive officer, director → director

The Jan 22, 2016 filing lists Margus Ehatamm as executive officer, director; the Jan 23, 2017 Form D/A lists director.

What this means Roles on Form D are self-reported by the issuer. A change can mean a real change in who runs the company, or just a different box ticked. Ask who makes decisions today.

Form D/A · Jan 22, 2016 ↗Form D/A · Jan 23, 2017 ↗Margus Ehatamm — PartnerFacts page ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Jan 23, 2015 – Jan 22, 2016

Margus Ehatamm's role changed at Hadron Fund L.P.: director → executive officer, director

The Jan 23, 2015 filing lists Margus Ehatamm as director; the Jan 22, 2016 Form D/A lists executive officer, director.

What this means Roles on Form D are self-reported by the issuer. A change can mean a real change in who runs the company, or just a different box ticked. Ask who makes decisions today.

Form D/A · Jan 23, 2015 ↗Form D/A · Jan 22, 2016 ↗Margus Ehatamm — PartnerFacts page ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Feb 15, 2013 – Jan 24, 2014

Minimum investment changed between filings — Hadron Fund L.P.

The Feb 15, 2013 filing lists a minimum of $1,000,000; the Jan 24, 2014 Form D/A lists $0.

What this means A different minimum usually means the offering terms changed. Check which terms apply to you.

Form D/A (earlier) · Feb 15, 2013 ↗Form D/A (later) · Jan 24, 2014 ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Apr 5, 2012 – Apr 5, 2013

Minimum investment changed between filings — Hadron Fund

The Apr 5, 2012 filing lists a minimum of $100,000; the Apr 5, 2013 Form D/A lists $1,000,000.

What this means A different minimum usually means the offering terms changed. Check which terms apply to you.

Form D/A (earlier) · Apr 5, 2012 ↗Form D/A (later) · Apr 5, 2013 ↗Hadron Fund — PartnerFacts page ↗
Sources
Note · Feb 16, 2012 – Feb 15, 2013

Minimum investment changed between filings — Hadron Fund L.P.

The Feb 16, 2012 filing lists a minimum of $0; the Feb 15, 2013 Form D/A lists $1,000,000.

What this means A different minimum usually means the offering terms changed. Check which terms apply to you.

Form D/A (earlier) · Feb 16, 2012 ↗Form D/A (later) · Feb 15, 2013 ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Feb 16, 2011 – Apr 5, 2011

Marco D'Attanasio is written 2 different ways on the filings

listed as "Marco D'Attanasio" on 6 filings (from Feb 16, 2011), and "Marco D?Attanasio" on the Apr 5, 2011 filing.

What this means Same person, written differently — a middle name or suffix left off, or spelled another way. It is normal, but check that the full legal name matches your subscription documents.

Form D · Feb 16, 2011 ↗Form D · Apr 5, 2011 ↗Marco D'Attanasio — PartnerFacts page ↗
Sources
Worth asking · Feb 16, 2011 – Apr 5, 2011

2 separate companies in this group use the same name: "Hadron Fund L.P."

CIK 1513184 (first filed Feb 16, 2011, Grand Cayman, Cayman Islands (as filed: E9)); CIK 1513386 (first filed Apr 5, 2011, Grand Cayman, Cayman Islands (as filed: E9)).

What this means Two legal entities with one name can make it unclear which one you invested in. Match the CIK and the SEC file number on your documents, not just the name.

Hadron Fund L.P. — PartnerFacts page ↗Hadron Fund — PartnerFacts page ↗EDGAR filer page · CIK 1513184 ↗EDGAR filer page · CIK 1513386 ↗
Sources
Note · Apr 6, 2020

Address on file is a registered agent / shared office — Hadron Fund

The latest filing lists C/O Hadron Fund, Ugland House, Po Box 309, Grand Cayman, Cayman Islands (as filed: E9). That address is used by 1,148 issuers in our index (registered agent / corporate services / fund administrator).

What this means Many small companies use a registered agent's address — it is legal and common. It means the Form D address is not where the team works. Ask where the business operates and who runs it day to day.

Form D/A · Apr 6, 2020 ↗Hadron Fund — PartnerFacts page ↗
Sources
Note · Jan 23, 2017

Address on file is a registered agent / shared office — Hadron Fund L.P.

The latest filing lists C/O Hadron General Partners Ltd., Ugland House, Po Box 309, Grand Cayman, Cayman Islands (as filed: E9). That address is used by 1,148 issuers in our index (registered agent / corporate services / fund administrator).

What this means Many small companies use a registered agent's address — it is legal and common. It means the Form D address is not where the team works. Ask where the business operates and who runs it day to day.

Form D/A · Jan 23, 2017 ↗Hadron Fund L.P. — PartnerFacts page ↗
Sources
Note · Jan 23, 2017 – Apr 6, 2020

Member companies were formed in 2 different states

Delaware (1), Cayman Islands (1) — out of 2 member issuers. The odd ones out: Hadron Fund (Cayman Islands).

What this means Sponsors often form each deal company in Delaware or Wyoming no matter where the property is. A mix is common; it just tells you which state's rules each company lives under.

Hadron — sponsor group page ↗Hadron Fund — PartnerFacts page ↗
Sources
What is compared

What is compared: every Form D and D/A we hold for this subject, side by side — filing dates vs. first-sale dates (the 15-day rule), amendment timing on open offerings (the yearly-amendment expectation), amounts sold, investor counts, offering amounts and minimums across amendments, industry and size bands, addresses, how each person's name and role is written, paid sellers' CRD numbers, and (for groups) where the member companies were formed and sit. Everything is as filed by the issuer; the SEC does not check it. Differences are common and usually have ordinary explanations — we show both values, the dates, and the source so you can ask. As of Oct 24, 2026.

5. Money to insiders

None reported on 2 offerings — no sales commissions, finder's fees or proceeds to insiders

Per-offering detail
Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Apr 6, 2020 D/A
Hadron Fund
File 021-157860
$0$0$0
The fund charges a management fee that is described in the fund's governing documents.
None listed on this filingEDGAR ↗
Jan 23, 2017 D/A
Hadron Fund L.P.
File 021-155459
$0$0$0
The fund charges a management fee that is described in the fund's governing documents.
None listed on this filingEDGAR ↗

Counts come from Form D Items 12–15 on the filings in our index (latest filing per offering; one offering = one SEC file number; an amendment updates its offering rather than adding one). "To insiders" = gross proceeds used for payments to executive officers, directors or promoters. "—" = not reported on that filing. Amounts marked (est.) were reported as estimates. "Paid to sell it" = sales compensation recipients named on that filing (Item 12), each linked to FINRA BrokerCheck when a CRD number is reported.

Counted across all 2 issuers in this group — every filing in our index, latest filing per offering (SEC file number).

Property records 0 documents · 0 ownership records · last checked Oct 24, 2026, 10:16 AM ET · NYC and Cook County lookup still to run

0 recorded documents and 0 ownership records matched to Hadron in the sources searched.

Not found in sources searched as of Oct 24, 2026, 10:16 AM ET: Hillsborough County FL Clerk of Court Official Records daily index (publicrec.hillsclerk.com D/P/M files), 2 daily files (Oct 14, 2026 to Oct 15, 2026) — loaded Oct 23, 2026, 8:59 PM ET; Harris County TX (HCAD ownership rolls 2005–2026) — 1,032,426 records, loaded Oct 24, 2026, 8:00 AM ET; Dallas County TX (DCAD ownership rolls 2021–2027) — 285,535 records, loaded Oct 24, 2026, 8:20 AM ET; Hillsborough County FL (FL DOR 2026 ownership roll + Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026), Miami-Dade County FL (FL DOR 2026 ownership roll), Broward County FL (FL DOR 2026 ownership roll), Palm Beach County FL (FL DOR 2026 ownership roll) — 514,336 records, loaded Oct 24, 2026, 8:25 AM ET; King County WA (Assessor sale records 0000-00-00–2026-10-14; no owner-of-record names published) — 538,619 records, loaded Oct 24, 2026, 8:27 AM ET; Cook County IL (Assessor sale records 1982–2026 + ownership rolls 1999–2026) — 1,263,035 records, loaded Oct 24, 2026, 9:34 AM ET. Still to be looked up for this group: NYC ACRIS via NYC Open Data (Real Property Parties 636b-3b5g, Master bnx9-e6tj, Legals 8h5j-fqxa, Document Control Codes 7isb-wh4c) · NYC PLUTO ownership via NYC Open Data (64uk-42ks) · Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp). Records in other counties, and recorder indexes we do not yet cover, were not searched.

Property records coverage: New York City (ACRIS recorded documents and PLUTO ownership, looked up per issuer when its page is viewed; re-checked when the page is viewed again more than 30 days after the last check); Harris County TX (ownership only, no deed, mortgage or sale records; HCAD ownership rolls 2005–2026); Dallas County TX (ownership only, no deed, mortgage or sale records; DCAD ownership rolls 2021–2027); Hillsborough County FL (FL DOR 2026 ownership roll + Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026), Miami-Dade County FL (FL DOR 2026 ownership roll), Broward County FL (FL DOR 2026 ownership roll), Palm Beach County FL (FL DOR 2026 ownership roll); King County WA (Assessor sale records 0000-00-00–2026-10-14; no owner-of-record names published); Cook County IL (Assessor sale records 1982–2026 + ownership rolls 1999–2026); also looked up per issuer when its page is viewed. Recorder indexes (party names on deeds, mortgages and liens) in TX, AZ, NV, CA and WA counties and outside the Clerk index in FL, mortgages and liens outside NYC and Hillsborough County, lis pendens and foreclosure notices everywhere, Los Angeles County CA, Clark County NV, New York City bulk pass (not finished; per-issuer lookups only so far), Maricopa County AZ (loader ready; commercial-purpose statement not yet filed), Salt Lake County UT, and all other counties are not covered — not searched. Last refresh by source: NYC ACRIS via NYC Open Data (Real Property Parties 636b-3b5g, Master bnx9-e6tj, Legals 8h5j-fqxa, Document Control Codes 7isb-wh4c) Oct 24, 2026, 9:34 AM ET; Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp) Oct 24, 2026, 9:34 AM ET; Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp) Oct 24, 2026, 8:30 AM ET; King County WA Assessor Real Property Sales extract (EXTR_RPSale.csv) Oct 24, 2026, 8:27 AM ET; Florida DOR NAL roll (Palm Beach 60) Oct 24, 2026, 8:25 AM ET; Florida DOR NAL roll (Broward 16) Oct 24, 2026, 8:24 AM ET; Florida DOR NAL roll (Dade 23) Oct 24, 2026, 8:23 AM ET; Florida DOR NAL roll (Hillsborough 39) Oct 24, 2026, 8:21 AM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV Oct 24, 2026, 8:20 AM ET; Harris County Appraisal District real_acct.txt Oct 24, 2026, 8:00 AM ET; Hillsborough County FL Clerk daily index Oct 23, 2026, 8:59 PM ET. NYC and Cook County are also looked up per issuer when its page is viewed; the most recent such lookup on this site finished Oct 24, 2026, 3:30 AM ET. Parties are named as the recorder's index names them (role suffixes as recorded); no address, account number or trust date is shown for an individual, and individual owners of record (home ownership) are not matched or shown. Items still in human review are not shown.

Issuers in this group

Why each issuer is here is stated in the "Linked by" column. Low-confidence links are never shown — they wait for human review.

SourceIssuerLinked byLocationIndustryFilingsSold (max)InvestorsMin. investment (latest filing)Active
EDGAR ↗HF Hadron Fund L.P.shared people, shared principal (person on 60+ issuers) at the same address or management entity, similar issuer names, director listed on many unrelated issuers (not used to group)GRAND CAYMAN, Cayman Islands (as filed: E9)Pooled Investment Fund7$10,000,000
offering Indefinite · similar: $155,000–$5,250,000
3
similar: 4–27
No minimum reported
similar: $1,000–$100,000
2011–2017
EDGAR ↗HF Hadron Fundshared people, shared principal (person on 60+ issuers) at the same address or management entity, similar issuer names, director listed on many unrelated issuers (not used to group)GRAND CAYMAN, Cayman Islands (as filed: E9)Pooled Investment Fund10$7,200,562
offering Indefinite · similar: $155,000–$5,250,000
3
similar: 4–27
$1,000,000
similar: $1,000–$100,000
2011–2020

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pooled Investment Fund / 506(b) (83,801 filings); ranges are the middle half (25th–75th percentile). Computed by PartnerFacts from SEC EDGAR Form D data as of Oct 23, 2026, 5:45 PM ET. Rows without a range: fewer than 30 comparable filings, or not a Rule 506 offering. No ranking or score.

Timeline of offerings

SourceFiledIssuerFormIndustryOfferedSold
EDGAR ↗Apr 6, 2020Hadron FundD/APooled Investment FundIndefinite$7,200,562
EDGAR ↗Apr 5, 2019Hadron FundD/APooled Investment FundIndefinite$0
EDGAR ↗Apr 6, 2018Hadron FundD/APooled Investment FundIndefinite$7,200,562
EDGAR ↗Apr 7, 2017Hadron FundD/APooled Investment FundIndefinite$7,200,562
EDGAR ↗Jan 23, 2017Hadron Fund L.P.D/APooled Investment FundIndefinite$22,981
EDGAR ↗Apr 7, 2016Hadron FundD/APooled Investment FundIndefinite$7,200,562
EDGAR ↗Jan 22, 2016Hadron Fund L.P.D/APooled Investment FundIndefinite$735,000
EDGAR ↗Apr 7, 2015Hadron FundD/APooled Investment FundIndefinite$6,991,341
EDGAR ↗Jan 23, 2015Hadron Fund L.P.D/APooled Investment FundIndefinite$57,934
EDGAR ↗Apr 7, 2014Hadron FundD/APooled Investment FundIndefinite$1,082,409
EDGAR ↗Jan 24, 2014Hadron Fund L.P.D/APooled Investment FundIndefinite$9,756,079
EDGAR ↗Apr 5, 2013Hadron FundD/APooled Investment FundIndefinite$2,010,041
EDGAR ↗Feb 15, 2013Hadron Fund L.P.D/APooled Investment FundIndefinite$4,867,172
EDGAR ↗Apr 5, 2012Hadron FundD/APooled Investment FundIndefinite$1,740,896
EDGAR ↗Feb 16, 2012Hadron Fund L.P.D/APooled Investment FundIndefinite$4,276,612
EDGAR ↗Apr 5, 2011Hadron FundDPooled Investment FundIndefinite$2,101,704
EDGAR ↗Feb 16, 2011Hadron Fund L.P.DPooled Investment FundIndefinite$10,000,000

Activity: 0 new offerings in the last 12 months across all issuers in this group (new offering = a Form D that is not an amendment, D/A) · most recent filing Apr 6, 2020. Industry history, as reported on each offering's latest filing: All 2 offerings reported: Pooled Investment Fund (2011).

People across the group

NameRolesIssuers hereFirst → last listed
DM David McGeoughDirector2Apr 7, 2014 → Apr 6, 2020
ME Margus EhatammDirector2Feb 16, 2011 → Apr 6, 2020
DS David SheppardDirector2Apr 7, 2014 → Apr 6, 2020
SF Sean FlynnDirector2Feb 16, 2011 → Jan 24, 2014
MA Marco D'AttanasioDirector2Feb 16, 2011 → Jan 24, 2014
HC Hadron Capital LLP entityPromoter1Apr 7, 2015 → Apr 6, 2020
HG Hadron General Partners Ltd. entityExecutive Officer, Promoter1Jan 23, 2015 → Jan 23, 2017
HG Hadron General Partner Ltd. entityExecutive Officer1Jan 24, 2014 → Jan 24, 2014
PH Patrick HarriganDirector1Apr 5, 2011 → Apr 5, 2013

Business registration (state registry / Secretary of State)

None of the 2 issuers has a record in the registries searched.

Registries searched: AL (Alabama Secretary of State — Business Entity Records (arc-sos.state.al.us), searched by issuer name, data as of Oct 24, 2026); CO (Colorado Secretary of State — Business Entities in Colorado (data.colorado.gov), data as of Oct 23, 2026); CT (Connecticut Secretary of the State — Business Registry (data.ct.gov), data as of Oct 24, 2026); FL (Florida Department of State, Division of Corporations — quarterly corporate data file (Sunbiz), data as of Oct 7, 2026); KY (Kentucky Secretary of State — Business Entity Search (sosbes.sos.ky.gov), searched by issuer name, data as of Oct 24, 2026); NY (New York Department of State — Corporations and Other Entities (data.ny.gov: All Filings + Active Corporations), data as of Oct 20, 2026); OR (Oregon Secretary of State — Active Businesses, All (data.oregon.gov), data as of Oct 20, 2026); PA (Pennsylvania Department of State — Registered Businesses, Current (data.pa.gov), data as of Oct 6, 2026); TX (Texas Comptroller — Active Franchise Taxpayers incl. Secretary of State file data (data.texas.gov), data as of Oct 24, 2026). Registries of other states have not been searched: many publish no bulk file and require a CAPTCHA or bot challenge on their search page, which we do not bypass (Delaware, for example, offers no public bulk file). A registry listing is the state's own record of the entity; it says nothing about the offering itself.

Adviser registration (Form ADV)

Searched SEC Form ADV bulk data (registered + exempt reporting advisers) (24,962 records as of Oct 2, 2026, 8:00 AM ET) — nothing matched Hadron.

Meta advertising

No Meta Pixel ids or Facebook / Instagram page links on file for Hadron as of Oct 24, 2026 — the sponsor website is read for them once it is on file (runs automatically). Meta Ad Library: not searched by PartnerFacts (no API access); a one-tap Ad Library search is under Look further.

Other offering types (Regulation A and Regulation Crowdfunding)

Searched SEC Regulation A Data Sets (Forms 1-A, 1-K, 1-Z; 2015 Q2 → 2026 Q3); SEC Crowdfunding Offerings Data Sets (Form C family; 2016 Q2 → 2026 Q3); EDGAR form index for 2026 Q3 → 2026 Q4 (51,358 records as of Oct 23, 2026, 8:41 PM ET) — nothing matched this name.

Public profiles and social

No website or social profile named in Hadron's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #276,803 of 374,652 in line (1,386 issuers searched so far). One-tap searches: Look further ↓

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Change history

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Sponsor response

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Grouping is PartnerFacts' inference from public filings (shared related persons, management entities, business address). Everything else on this page is drawn from the filings themselves. Not the same sponsor? Request a correction.

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (outside the US (as filed: GRAND CAYMAN), E9). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

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Courts

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Securities regulators

SEC EDGAR full-text search ↗SEC action look-up ↗FINRA BrokerCheck ↗SEC IAPD adviser search ↗

Business registries

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