PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 4:57 AM ET

Sponsor Check › Sponsor group

A

Argon

One sponsor team, 2 deal companies · Cambridge, MA

Grouped because: 2 shared people, similar issuer names (2) (automatic match from the filings) · not the same sponsor?

2deal companies
$28.8Mreported sold
80investors
5Form D filings
2020–2025active
0new, last 12 mo
Follow this sponsor groupLook further ↓

Data last updated Oct 23, 2026, 5:45 PM ET · Latest filing in this group Jun 20, 2025 · 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

Argon is a sponsor group of 2 issuers that PartnerFacts links to one sponsor (shared people, similar issuer names; automatic match from the filings), filing 5 Form D filings between Mar 2020 and Jun 2025.

What this means One team, 2 deal companies, about 5 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: $28.8M to 80 investors (latest filing per issuer). Industries as reported: Pooled Investment Fund (2). Issuers are based in MA (2).

What this means $28.8M raised across the group, about $360K per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.

Principal people: Andrew Feinberg (2 issuers, executive officer), Robert Mason (2 issuers, executive officer), Argon Ventures GP I, L.L.C. (1 issuer, executive officer, entity) and Argon Ventures GP II, L.L.C. (1 issuer, executive officer, entity).

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 Jun 20, 2025.

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

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA), property records (NYC, FL, IL and TX counties) — 1 court case matching the name, 1 bankruptcy case matching the name listed in Key records below.

What this means 2 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 5 public filings for Argon and found 4 differences: Offering amount lowered between filings; No amendment in the last 12 months on an offering that may still be open; 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 Argon has not run yet — it is joining a line of 2,285 names; searches run around the clock at the hosts' allowed rate. Searched so far: 27 names.

Community comments are quoted as written by their authors. Sources searched: BiggerPockets forums (via DuckDuckGo, Brave, Bing and BiggerPockets search) and Reddit (search feed + public archive).

Key records

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

1. Lawsuits

1 case: 1 closed (disposition not in docket feed)

Argon Inc v. Serengeti Eyewear closed matched at sponsor-group level (Argon)
District Court, C.D. California · No. 2:97-cv-06913 · Filed Sep 18, 1997 · Closed Dec 15, 1997 · Nature of suit: 190 Other contract actions
Role of Argon Inc: Plaintiff · Outcome: Terminated 1997-12-15 — FJC Integrated Database disposition: Remanded to state court Docket on CourtListener ↗
exact company name; name has one distinctive word; court in CA (not the issuer's state); filed 1997, issuer incorporated 2020
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: AZ, CA, DE, TX, WA (crawled Oct 23, 2026)

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 Argon..

State securities regulators searched: AZ (Corporation Commission Securities Division), CA (DFPI — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), DE (DOJ Investor Protection Unit), TX (State Securities Board), WA (DFI) — last crawled Oct 23, 2026, 9:57 PM ET. Other states are not covered.

3. Bankruptcies

1 case: 1 closed (disposition not in docket feed)

Argon, Inc. closed matched at sponsor-group level (Argon)
United States Bankruptcy Court, E.D. North Carolina · No. 78-50192 · Filed Nov 17, 1978 · Closed Jun 27, 1979
Role of Argon, Inc.: Debtor · Outcome: Case closed 1979-06-27 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
exact company name; name has one distinctive word; court in NC (not the issuer's state); filed 1978, issuer incorporated 2020
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.

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.

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.

4 differences found between the filings for Argon (compared 5 filings on Oct 24, 2026)

Note · Jun 21, 2024 – Jun 20, 2025

Offering amount lowered between filings — Argon Ventures II, L.P.

The Jun 21, 2024 filing says $36,000,000 offered; the Jun 20, 2025 Form D/A says $20,000,000.

What this means The target raise got smaller. That can mean the plan shrank or the sponsor stopped early. Ask what changed in the deal.

Form D/A (earlier) · Jun 21, 2024 ↗Form D/A (later) · Jun 20, 2025 ↗Argon Ventures II, L.P. — PartnerFacts page ↗
Sources
Note · Jun 22, 2023 – Jun 20, 2025

No amendment in the last 12 months on an offering that may still be open — Argon Ventures II, L.P. (latest filing Jun 20, 2025)

The latest filing for this offering is dated Jun 20, 2025 (first sale Jun 22, 2023). It reports $13,160,000 sold of $20,000,000 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 · Jun 20, 2025 ↗Argon Ventures II, L.P. — PartnerFacts page ↗
Sources
Note · Mar 5, 2020 – Mar 5, 2021

No amendment in the last 12 months on an offering that may still be open — Argon Ventures I, L.P. (latest filing Mar 5, 2021)

The latest filing for this offering is dated Mar 5, 2021 (first sale Mar 5, 2020). It reports $15,620,000 sold of $30,000,000 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 · Mar 5, 2021 ↗Argon Ventures I, L.P. — PartnerFacts page ↗
Sources
Note · Mar 5, 2021

Address on file is a registered agent / shared office — Argon Ventures I, L.P.

The latest filing lists C/O Argon Ventures Gp I, L.L.C., 501 Massachusetts Avenue, Cambridge, MA. That address is used by 15 issuers in our index (15 issuers in 10 unrelated clusters).

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 · Mar 5, 2021 ↗Argon Ventures I, L.P. — 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
Jun 20, 2025 D/A
Argon Ventures II, L.P.
File 021-484795
$0$0$0None listed on this filingEDGAR ↗
Mar 5, 2021 D/A
Argon Ventures I, L.P.
File 021-361975
$0$0$0None 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 23, 2026, 8:59 PM ET · NYC and Cook County lookup still to run

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

Not found in sources searched as of Oct 23, 2026, 8:59 PM 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; Florida DOR NAL roll (Hillsborough 39) roll year 2026 — loaded Oct 23, 2026, 8:54 PM ET; Florida DOR NAL roll (Dade 23) roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET; Harris County Appraisal District real_acct.txt roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV roll year 2026 — loaded Oct 23, 2026, 8:58 PM 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); Hillsborough County FL (recorded documents from Oct 14, 2026 forward; ownership from FL DOR roll 2026); Cook County IL (assessor ownership and deed/sale records, looked up per issuer when its page is viewed); Harris County TX and Dallas County TX (assessor ownership rolls only, 2026 roll; no deed, mortgage or sale records); Miami-Dade County FL (ownership from FL DOR roll only; Clerk recorded documents not covered). Recorder indexes for TX, AZ, IL and WA counties, mortgages and liens outside NYC and FL, lis pendens and foreclosure notices everywhere, Miami-Dade County FL recorded documents, Maricopa County AZ, King County WA, Salt Lake County UT, and all other counties are not covered — not searched. Last refresh by source: Hillsborough County FL Clerk daily index Oct 23, 2026, 8:59 PM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV Oct 23, 2026, 8:58 PM ET; Harris County Appraisal District real_acct.txt Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Dade 23) Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Hillsborough 39) Oct 23, 2026, 8:54 PM ET. NYC and Cook County are 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 ↗AV Argon Ventures I, L.P.shared people, similar issuer namesCAMBRIDGE, MAPooled Investment Fund2$15,620,000
offering $30,000,000 · similar: $155,000–$5,250,000
39
similar: 4–27
No minimum reported
similar: $1,000–$100,000
2020–2021
EDGAR ↗AV Argon Ventures II, L.P.shared people, similar issuer namesCONCORD, MAPooled Investment Fund3$13,160,000
offering $20,000,000 · similar: $155,000–$5,250,000
41
similar: 4–27
No minimum reported
similar: $1,000–$100,000
2023–2025

"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 ↗Jun 20, 2025Argon Ventures II, L.P.D/APooled Investment Fund$20,000,000$13,160,000
EDGAR ↗Jun 21, 2024Argon Ventures II, L.P.D/APooled Investment Fund$36,000,000$10,710,000
EDGAR ↗Jun 21, 2023Argon Ventures II, L.P.DPooled Investment Fund$36,000,000$0
EDGAR ↗Mar 5, 2021Argon Ventures I, L.P.D/APooled Investment Fund$30,000,000$15,620,000
EDGAR ↗Mar 4, 2020Argon Ventures I, L.P.DPooled Investment Fund$30,000,000$0

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 Jun 20, 2025. Industry history, as reported on each offering's latest filing: All 2 offerings reported: Pooled Investment Fund (2020–2023).

People across the group

NameRolesIssuers hereFirst → last listed
AF Andrew FeinbergExecutive Officer2Mar 4, 2020 → Jun 20, 2025
RM Robert MasonExecutive Officer2Mar 4, 2020 → Jun 20, 2025
AV Argon Ventures GP II, L.L.C. entityExecutive Officer1Jun 21, 2023 → Jun 20, 2025
AV Argon Ventures GP I, L.L.C. entityExecutive Officer1Mar 4, 2020 → Mar 5, 2021

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 Argon.

Meta advertising

No Meta Pixel ids or Facebook / Instagram page links on file for Argon 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 Argon's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #198,273 of 374,652 in line (14 issuers searched so far). One-tap searches: Look further ↓

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Change history

No corrections have been requested for this page.

Request a correction

Free. Covers the grouping itself or any record shown here. Logged with status: received → under review → fixed / confirmed with source.

Sponsor response

Add a sourced explanation next to any fact. Reviewed before publishing.

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: CAMBRIDGE), MA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

LinkedIn companies ↗Instagram ↗X (Twitter) ↗Facebook ↗YouTube ↗Google ↗Google Images ↗Google News ↗Meta Ad Library ↗

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗Massachusetts MassCourts ↗

Securities regulators

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

Business registries

Massachusetts Secretary of State business search ↗OpenCorporates ↗