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

Sponsor Check › Person

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

Darrell Brookstein

Named as an officer, director or promoter on SEC Form D filings · British Columbia, Canada (as filed: A1), CA · Apr 22, 2010 → May 6, 2015

3deals (issuers)
$18.2Mreported sold
78investors
10Form D filings
2010–2015years on file

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:21 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Darrell Brookstein is listed as an executive officer and director on 10 SEC Form D filings by 3 issuers between Oct 2009 and May 2015: Edesa Biotech, Inc. (Markham, Ontario, Canada (as filed: A6) — biotechnology — 2012–2013; $15M reported sold to 50 investors), STELLAR BIOTECHNOLOGIES INC. (Port Hueneme, CA — biotechnology — 2009–2011; $2.78M reported sold to 20 investors) and Spexio, Inc. (Solana Beach, CA — other banking and financial services — 2015; $425K reported sold to 8 investors).

What this means A repeat sponsor — 3 separate companies raised money with this person listed as executive officer and director, over about 6 years. Across those companies the filings report $18.2M sold in total.

Listed alongside Daniel E. Morse (8 shared filings), Frank R. Oakes (8 shared filings), David Louis Hill (4 shared filings), Gregory Todd Baxter (4 shared filings), Harvey S. Wright (4 shared filings) and 13 others.

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

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) — 1 court case matching the name listed in Key records below.

What this means 1 record 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 10 public filings for Darrell Brookstein and found 15 differences, 1 worth asking the sponsor about: Darrell Brookstein is no longer listed on the Oct 3, 2013 amendment; 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 Darrell Brookstein has not run yet — it is joining a line of 53,008 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

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

BROOKSTEIN v. USAA CASUALTY INSURANCE COMPANY closed
District Court, E.D. Pennsylvania · No. 2:22-cv-00381 · Filed Jan 28, 2022 · Closed Jun 21, 2022
Role of BROOKSTEIN: Plaintiff · Outcome: Terminated 2022-06-21 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same rare surname (5 people in Form D filings, 7 federal dockets); surname only in the caption; court in PA (not a filing state)
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, 2:21 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 Darrell Brookstein..

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, 2:21 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

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

15 differences found between the filings for Darrell Brookstein — 1 worth asking about (compared 10 filings on Oct 24, 2026)

Note · Mar 8, 2011

Darrell Brookstein appears on 1 deal that stopped filing before reaching its target

STELLAR BIOTECHNOLOGIES INC. (last filing Mar 8, 2011; $2,784,684 sold of $6,395,400). Each has no filing in more than two years and reported under half its target sold.

What this means An issuer whose last filing is more than two years old and reported under half its target sold. The raise may have closed early or quietly stopped. Ask what happened to each.

Sources
Note · Oct 27, 2010 – Nov 17, 2010

Form D filed 21 days after the first sale — STELLAR BIOTECHNOLOGIES INC.

The filing says the first sale was Oct 27, 2010. The Form D was filed Nov 17, 2010 — 21 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 6 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 · Jan 2, 2013 – Jan 15, 2013

No amendment in the last 12 months on an offering that may still be open — Edesa Biotech, Inc. (latest filing Jan 15, 2013)

The latest filing for this offering is dated Jan 15, 2013 (first sale Jan 2, 2013). It reports $504,596 sold of $505,000 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.

Sources
Note · Oct 27, 2010 – Mar 8, 2011

No amendment in the last 12 months on an offering that may still be open — STELLAR BIOTECHNOLOGIES INC. (latest filing Mar 8, 2011)

The latest filing for this offering is dated Mar 8, 2011 (first sale Oct 27, 2010). It reports $81,396 sold of $3,612,238 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.

Sources
Note · Apr 9, 2010 – Apr 22, 2010

No amendment in the last 12 months on an offering that may still be open — STELLAR BIOTECHNOLOGIES INC. (latest filing Apr 22, 2010)

The latest filing for this offering is dated Apr 22, 2010 (first sale Apr 9, 2010). It reports $587,355 sold of $1,006,894 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.

Sources
Worth asking · Sep 3, 2013 – Oct 3, 2013

Darrell Brookstein is no longer listed on the Oct 3, 2013 amendment — Edesa Biotech, Inc.

Darrell Brookstein appears on the Sep 3, 2013 Form D (executive officer) but not on the Oct 3, 2013 Form D/A for the same offering.

What this means People leave, and the issuer must list only current officers, directors and promoters. It is still worth asking why this person left and who replaced them.

Sources
Note · Apr 11, 2013 – Sep 3, 2013

Darrell Brookstein's role changed at Edesa Biotech, Inc.: executive officer, director → executive officer

The Apr 11, 2013 filing lists Darrell Brookstein as executive officer, director; the Sep 3, 2013 Form D lists executive officer.

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.

Sources
Note · Oct 8, 2009 – Apr 22, 2010

Darrell Brookstein's role changed at STELLAR BIOTECHNOLOGIES INC.: director → executive officer, director

The Oct 8, 2009 filing lists Darrell Brookstein as director; the Apr 22, 2010 Form D 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.

Sources
Note · Nov 17, 2010 – Mar 8, 2011

Offering amount lowered between filings — STELLAR BIOTECHNOLOGIES INC.

The Nov 17, 2010 filing says $6,395,400 offered; the Mar 8, 2011 Form D/A says $3,612,238.

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.

Sources
Note · Oct 8, 2009 – Apr 11, 2013

Darrell Brookstein is written 2 different ways on the filings

listed as "Darrell Brookstein" on 8 filings (from Oct 8, 2009), and "Darrell H. Brookstein" on 2 filings (from Apr 11, 2013).

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.

Sources
Note · Oct 8, 2009 – Apr 22, 2010

Industry group changed between filings — STELLAR BIOTECHNOLOGIES INC.

"Other" (Oct 8, 2009); then "Biotechnology" (Apr 22, 2010 to Mar 8, 2011).

What this means The issuer described its business differently on different forms. Often it is just a different box ticked; sometimes the deal itself changed. Ask which business your money is in.

Sources
Note · Oct 8, 2009 – Apr 22, 2010

Reported revenue range changed between filings — STELLAR BIOTECHNOLOGIES INC.

"No Revenues" (Oct 8, 2009); then "Decline to Disclose" (Apr 22, 2010).

What this means This is the size band the issuer picks for itself on the form. A change can mean the business grew or shrank — or that it chose not to say. Ask for current numbers.

Sources
Note · Apr 22, 2010 – Nov 17, 2010

Address moved from Port Hueneme, CA to Burnaby, British Columbia, Canada (as filed: A1) — STELLAR BIOTECHNOLOGIES INC.

The people listed on the Apr 22, 2010 filing give Port Hueneme, CA; on the Nov 17, 2010 filing they give Burnaby, British Columbia, Canada (as filed: A1).

What this means Businesses move; this just shows the two places and dates. If you were told one city and the forms say another, ask which is current.

Sources
Note · Oct 8, 2009 – Apr 22, 2010

Address moved from Burnaby, British Columbia, Canada (as filed: A1) to Port Hueneme, CA — STELLAR BIOTECHNOLOGIES INC.

The people listed on the Oct 8, 2009 filing give Burnaby, British Columbia, Canada (as filed: A1); on the Apr 22, 2010 filing they give Port Hueneme, CA.

What this means Businesses move; this just shows the two places and dates. If you were told one city and the forms say another, ask which is current.

Sources
Note · Oct 8, 2009 – May 6, 2015

Darrell Brookstein is listed with 2 different address states: A1, CA

British Columbia, Canada (as filed: A1) on 1 filing (Oct 8, 2009); CA on 9 filings (Apr 22, 2010 to May 6, 2015).

What this means The address on a Form D is usually the company's, not the person's home, so this often just reflects different companies. It can also mean a move. Nothing wrong by itself.

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

0 of 9 offerings report sales commissions; 5 report finder's fees totalling $826,254; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
May 6, 2015 D
Spexio, Inc.
File 021-239248
$0$0$0None listed on this filingEDGAR ↗
Sep 3, 2013 D
Edesa Biotech, Inc.
File 021-202234
$0$500,000 (est.)$0Newport Coast Securities, Inc. BrokerCheck CRD 16944 ↗EDGAR ↗
Apr 11, 2013 D
Edesa Biotech, Inc.
File 021-194855
$0$50,490$0None listed on this filingEDGAR ↗
Jan 15, 2013 D
Edesa Biotech, Inc.
File 021-190281
$0$24,543$0None listed on this filingEDGAR ↗
Oct 31, 2012 D
Edesa Biotech, Inc.
File 021-186328
$0$50,290$0None listed on this filingEDGAR ↗
Mar 8, 2011 D/A
STELLAR BIOTECHNOLOGIES INC.
File 021-150652
$0$200,931 (est.)$0None listed on this filingEDGAR ↗
Apr 22, 2010 D
STELLAR BIOTECHNOLOGIES INC.
File 021-141002
$0$0$0None listed on this filingEDGAR ↗
Apr 22, 2010 D
STELLAR BIOTECHNOLOGIES INC.
File 021-141003
$0$0$0None listed on this filingEDGAR ↗
Oct 8, 2009 D
STELLAR BIOTECHNOLOGIES INC.
File 021-135093
$0$0$0None listed on this filingEDGAR ↗
How this is counted

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 3

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

Other Banking and Financial Services

Spexio, Inc.

Solana Beach, CA · May 6, 2015
  • May 6, 2015 · D · $425,000 sold of $425,000 · 8 investors · min. $25,000 · role: Executive Officer, Director EDGAR ↗

Raised $425K from 8 investors (100% of the $425K target) as of the latest filing. Darrell is listed as executive officer, 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: Other Banking and Financial Services / 506(b) (1,630 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.

Biotechnology

Edesa Biotech, Inc.

Markham, Ontario, Canada (as filed: A6) · Oct 31, 2012 → Sep 3, 2013 · 4 filings
  • Sep 3, 2013 · D · $0 sold of $12,000,000 · 0 investors · min. No minimum reported · role: Executive Officer EDGAR ↗
  • Apr 11, 2013 · D · $1,613,700 sold of $1,613,700 · 22 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Jan 15, 2013 · D · $504,596 sold of $505,000 · 9 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Oct 31, 2012 · D · $1,005,800 sold of $1,005,800 · 3 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $15M from 50 investors (100% of the $12M target) as of the latest filing. Darrell is listed as executive officer, director on 4 filings for this deal.

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.

Biotechnology

STELLAR BIOTECHNOLOGIES INC.

Port Hueneme, CA · Oct 8, 2009 → Mar 8, 2011 · 5 filings
  • Mar 8, 2011 · D/A · $81,396 sold of $3,612,238 · 2 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Nov 17, 2010 · D · $81,396 sold of $6,395,400 · 2 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Apr 22, 2010 · D · $587,355 sold of $1,006,894 · 20 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Apr 22, 2010 · D · $2,784,684 sold of $2,784,684 · 9 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Oct 8, 2009 · D · $74,878 sold of $74,878 · 9 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $2.78M from 20 investors (77% of the $3.61M target) as of the latest filing. Darrell is listed as executive officer, director on 5 filings for this deal.

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.

People around Darrell 18

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

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

Frank R. Oakes

Executive Officer, Director · 8 shared filings (2 issuers)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Daniel E. Morse

Executive Officer, Director · 8 shared filings (2 issuers)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

W. Benjamin Catalano

Director · 4 shared filings (1 issuer) · also on 2 other issuers

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

DH
No photo found (searched own website, image search on Oct 24, 2026)
Person

David Louis Hill

Director · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Scott Davis

Executive Officer · 4 shared filings (1 issuer) · also on 20 other issuers

Scott Davis is on 21 issuers in total — a repeat sponsor. Their page lists every one.

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

Mayank Dwarkadas Sampat

Director · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Herbert S. Chow

Executive Officer · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Mary Catherine Brisson

Executive Officer · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Gregory Todd Baxter

Director · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Harvey S. Wright

Director · 4 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Malcolm Gefter

Director · 3 shared filings (2 issuers)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

KERIN BEAMISH

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Kerry Beamish

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

MARTIN JC WOODWARD

Director · 1 shared filing (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

ALAN G JI

Executive Officer, Director · 1 shared filing (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

BENJAMIN CATALANO

Executive Officer, Director · 1 shared filing (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

John Sievert Sundsmo

Executive Officer · 1 shared filing (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

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

Helen Brookstein

Executive Officer, Director · 1 shared filing (1 issuer)

Listed on the same filings as Darrell Brookstein. Their page shows their other deals.

Registrations and other filings

Business registration (state registry / Secretary of State)

Individuals are not matched to business registrations — registries list companies, and a name alone is not enough to tie a person to one. Officers and managers appear by name inside each matched company's record on the issuer pages. 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); 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).

Adviser registration (Form ADV)

None of the 3 issuers 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 Darrell Brookstein 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 3 issuers this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers Darrell Brookstein is listed on: none on file. No website or social profile named in Edesa Biotech, Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #20,207 of 374,652 in line (1,386 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 (Markham, A6). Each opens in a new tab; what you find there is not verified by PartnerFacts.

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