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Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 5:27 AM ET

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SE
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Stephen Epstein

Named as an officer, director or promoter on SEC Form D filings · CA · May 26, 2015 → May 26, 2015

1deal (issuers)
$1.06Mreported sold
4investors
1Form D filing
2015year on file

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 3:04 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Stephen Epstein is listed as a director on 1 SEC Form D filing by 1 issuer in May 2015: CardioCell, LLC (San Diego, CA — biotechnology — 2015; $1.06M reported sold to 4 investors).

What this means One deal on file with the SEC, filed May 2015. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.

Listed alongside Leo Spiegel (1 shared filing), Nikolai Tankovich (1 shared filing), Richard Jaffe (1 shared filing), Robert S. Sullivan (1 shared filing), Roger J. Howe (1 shared filing) and 3 others.

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Stephen. Each name links to their own page.

The issuer belongs to the sponsor group Stemprotein (2 issuers, $6.06M reported sold, 2014–2015).

What this means A sponsor group is one team that sets up a new company for each deal. Stemprotein has 2 companies on file and $6.06M reported sold in total — the group page shows the whole track record in one place.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA) — 3 bankruptcy cases matching the name listed in Key records below.

What this means 3 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 1 public filing for Stephen Epstein and found 4 differences, 1 worth asking the sponsor about: Form D filed 85 days after the first sale; 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 Stephen Epstein has not run yet — it is joining a line of 16,752 names; searches run around the clock at the hosts' allowed rate. Searched so far: 28 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

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

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, 3:04 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.

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 Stephen Epstein..

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

3 cases: 3 closed (disposition not in docket feed)

Stephen L. Epstein closed
United States Bankruptcy Court, E.D. New York · No. 8-05-80059 · Filed Jan 5, 2005 · Closed Apr 25, 2005
Role of Stephen L. Epstein: Debtor · Outcome: Case closed 2005-04-25 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 4 federal dockets); 5 people with this name in Form D filings; court in NY (not a filing state)
Stephen M. Epstein and Jaye Michael closed
United States Bankruptcy Court, D. Massachusetts · No. 02-11343 · Filed Feb 26, 2002 · Closed Jan 31, 2007
Role of Stephen M. Epstein and Jaye Michael: Debtor · Outcome: Case closed 2007-01-31 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 4 federal dockets); 5 people with this name in Form D filings; court in MA (not a filing state)
Stephen Epstein closed
United States Bankruptcy Court, D. Connecticut · No. 95-21654 · Filed May 4, 1995 · Closed Sep 14, 1995
Role of Stephen Epstein: Debtor · Outcome: Case closed 1995-09-14 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 4 federal dockets); 5 people with this name in Form D filings; court in CT (not a filing state)
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, 3:04 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

Comparisons cover issuers and sponsor groups — see the issuer pages under Deals

4 differences found between the filings for Stephen Epstein — 1 worth asking about (compared 1 filing on Oct 24, 2026)

Worth asking · Mar 2, 2015 – May 26, 2015

Form D filed 85 days after the first sale — CardioCell, LLC

The filing says the first sale was Mar 2, 2015. The Form D was filed May 26, 2015 — 85 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 70 days past that.

What this means A late notice is common and carries no penalty by itself. It is worth asking the sponsor why the paperwork lagged.

Sources
Note · Dec 16, 2019 – May 31, 2024

Same name, different state: "Stephen Epstein" (TN) is a separate record

This page covers filings where the address state is CA. A separate record, "Stephen Epstein" with address state TN, is listed on 4 filings — most recently by GenFlat Holdings, Inc. (May 31, 2024). The two records do not overlap in time: this page has one filing dated May 26, 2015; the other runs Dec 16, 2019 to May 31, 2024.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

Sources
Note · Dec 3, 2021 – Dec 2, 2022

Same name, different state: "Stephen S. Epstein" (TN) is a separate record

This page covers filings where the address state is CA. A separate record, "Stephen S. Epstein" with address state TN, is listed on 2 filings — most recently by CAS Argent Fund LP (Dec 2, 2022). The two records do not overlap in time: this page has one filing dated May 26, 2015; the other runs Dec 3, 2021 to Dec 2, 2022.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

Sources
Note · Feb 25, 2019 – Mar 8, 2021

Same name, different state: "Stephen A Epstein" (TN) is a separate record

This page covers filings where the address state is CA. A separate record, "Stephen A Epstein" with address state TN, is listed on 4 filings — most recently by Realiste Fund I LP (Mar 8, 2021). The two records do not overlap in time: this page has one filing dated May 26, 2015; the other runs Feb 25, 2019 to Mar 8, 2021.

What this means Could be the same person who moved, or two people with the same name. We keep them apart until a filing ties them together. Check both pages before you decide.

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 1 offering — no sales commissions, finder's fees or proceeds to insiders

Per-offering detail
Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
May 26, 2015 D
CardioCell, LLC
File 021-240488
$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 every filing this person is listed on (latest filing per offering, per issuer).

Deals 1

Every issuer that named Stephen Epstein on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

Biotechnology · group: Stemprotein

CardioCell, LLC

San Diego, CA · May 26, 2015
  • May 26, 2015 · D · $1,060,000 sold of $1,060,000 · 4 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $1.06M from 4 investors (100% of the $1.06M target) as of the latest filing. Stephen is listed as director.

Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Biotechnology / 506(b) (3,253 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.

Other pages with the same name (4)

Separate person records under the same name, not combined with this page. Each line says whether it shares an issuer with this record.

  • Stephen Epstein — TN, 2 issuers, Dec 16, 2019 → May 31, 2024 · no shared issuer
  • Stephen M Epstein — CA, 1 issuer, Apr 7, 2011 → Apr 7, 2011 · no shared issuer
  • Stephen A Epstein — TN, 1 issuer, Feb 25, 2019 → Mar 8, 2021 · no shared issuer
  • Stephen S. Epstein — TN, 1 issuer, Dec 3, 2021 → Dec 2, 2022 · no shared issuer

People around Stephen 8

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET.

LS
No photo found yet (own website and image search run after this page is viewed)
Person

Leo Spiegel

Director · 1 shared filing (1 issuer) · also on 8 other issuers

Leo Spiegel is on 9 issuers in total — a repeat sponsor. Their page lists every one.

SS
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Person

Sergey Sikora

Executive Officer, Director · 1 shared filing (1 issuer) · also on 1 other issuer

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

RH
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Person

Roger J. Howe

Director · 1 shared filing (1 issuer) · also on 1 other issuer

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

SL
No photo found yet (own website and image search run after this page is viewed)
Person

Sergey Leshkov

Director · 1 shared filing (1 issuer) · also on 1 other issuer

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

TS
No photo found yet (own website and image search run after this page is viewed)
Person

Thomas Silberg

Director · 1 shared filing (1 issuer)

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

NT
No photo found yet (own website and image search run after this page is viewed)
Person

Nikolai Tankovich

Director · 1 shared filing (1 issuer) · also on 1 other issuer

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

RJ
No photo found yet (own website and image search run after this page is viewed)
Person

Richard Jaffe

Director · 1 shared filing (1 issuer) · also on 1 other issuer

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

RS
No photo found yet (own website and image search run after this page is viewed)
Person

Robert S. Sullivan

Director · 1 shared filing (1 issuer)

Listed on the same filings as Stephen Epstein. Their page shows their other deals.

The team behind the deals

Sponsor group

Stemprotein

2 issuers · 2 filings · $6.06M reported sold · 2014–2015

One team, 2 deal companies. Stephen Epstein is listed on 1 of them.

Sources

Issuers are grouped when their Form D filings share related persons, a management entity or a business address (automatic match from the filings). "Listed" marks the issuers that name Stephen Epstein.

Same business address

2 other issuers file from the same address

A shared address can mean the same team, a shared office building or a registered agent. It is a lead, not a conclusion.

Registrations and other filings

Adviser registration (Form ADV)

None of the 1 issuer this person is listed on appears in Form ADV (searched 24,962 advisers as of Oct 2, 2026). A person is never an adviser firm; Form ADV is checked for the issuers and the management companies they are listed with.

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.

Property records none — individuals are not matched

Property records are matched to companies only, never to individuals, so none are matched to Stephen Epstein by design. Searched property records in Hillsborough County FL (Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026 + FL DOR 2026 ownership roll), Miami-Dade County FL (FL DOR 2026 ownership roll), Harris County TX (HCAD 2026 ownership roll), Dallas County TX (DCAD 2026 ownership roll), New York City ACRIS documents and PLUTO ownership rows already retrieved for other issuers, Cook County IL sale and ownership rows already retrieved for other issuers (814,874 records as of Oct 23, 2026, 8:59 PM ET) for the 1 issuer this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers Stephen Epstein is listed on: none on file. No website or social profile named in CardioCell, LLC's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #303,398 of 374,652 in line (14 issuers searched so far). One-tap searches: Look further ↓

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (San Diego, CA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Change history

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Monitor this person

Members get an email when Stephen Epstein appears on a new Form D, or when a court case or SEC action is matched to them. See plans →