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

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LM
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Leon O. Moulder, Jr.

Named as an officer, director or promoter on SEC Form D filings · MA, FL, PA · May 20, 2010 → May 14, 2024

7deals (issuers)
$525.8Mreported sold
119investors
22Form D filings
2010–2024years on file
Follow this personLook further ↓PDF

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

Leon O. Moulder, Jr. is listed as an executive officer and director on 22 SEC Form D filings by 7 issuers between May 2010 and Aug 2026. Largest by amount reported sold: Zenas BioPharma, Inc. (Waltham, MA — biotechnology — 2022–2024; $200.1M reported sold to 26 investors), TESARO, Inc. (Waltham, MA — pharmaceuticals — 2010–2016; $155M reported sold to 17 investors), Dianthus Therapeutics, Inc. (Waltham, MA — biotechnology — 2019–2022; $100M reported sold to 22 investors), Interius BioTherapeutics, Inc. (Philadelphia, PA — biotechnology — 2020–2024; $51.4M reported sold to 25 investors), ViTToria Biotherapeutics, Inc. (Philadelphia, PA — biotechnology — 2021; $8.67M reported sold to 11 investors) and 2 more (all listed below).

What this means A repeat sponsor — 7 separate companies raised money with this person listed as executive officer and director, over about 16 years. Across those companies the filings report $525.8M sold in total.

Listed alongside Tomas Kiselak (7 shared filings), Evangelos Badiavas (5 shared filings), Jonathan Violin (5 shared filings), Shelley Hartman (5 shared filings), David Mott (4 shared filings) and 51 others.

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

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA) — none found.

What this means Nothing turned up where we looked (3 sources). That does not prove there is nothing — it means none was found in those sources on that date.

We compared 22 public filings for Leon O. Moulder, Jr. and found 14 differences, 1 worth asking the sponsor about: 4 Form Ds were filed more than 15 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 Leon O. Moulder, Jr. has not run yet — it is joining a line of 15,173 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, 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.

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 Leon O. Moulder, Jr...

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

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

14 differences found between the filings for Leon O. Moulder, Jr. — 1 worth asking about (compared 22 filings on Oct 24, 2026)

Worth asking · Jan 14, 2020 – Aug 28, 2026

4 Form Ds were filed more than 15 days after the first sale

Form D filed 63 days after the first sale — Aegle Therapeutics Corp · Form D filed 160 days after the first sale — ViTToria Biotherapeutics, Inc. · Form D filed 24 days after the first sale — Aegle Therapeutics Corp · Form D filed 24 days after the first sale — TamuroBio Inc.

What this means Late notices are common and carry no penalty by themselves. A pattern of late paperwork is worth asking the sponsor about.

Form D · Mar 3, 2026 ↗Aegle Therapeutics Corp — PartnerFacts page ↗Form D · Dec 30, 2021 ↗ViTToria Biotherapeutics, Inc. — PartnerFacts page ↗
Sources
Note · Nov 15, 2022 – May 14, 2024

Leon O. Moulder, Jr.'s role changed at Zenas BioPharma, Inc.: director → executive officer, director

The Nov 15, 2022 filing lists Leon O. Moulder, Jr. as director; the May 14, 2024 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.

Form D · Nov 15, 2022 ↗Form D · May 14, 2024 ↗Leon O. Moulder, Jr. — PartnerFacts page ↗Zenas BioPharma, Inc. — PartnerFacts page ↗
Sources
Note · Aug 1, 2019 – Dec 16, 2020

Offering amount changed between filings — Dianthus Therapeutics, Inc.

The Aug 1, 2019 filing says $3,500,000 offered; the Dec 16, 2020 Form D/A says $7,000,000.

What this means The target raise changed. Raising the cap is common when a deal grows; ask whether the extra money has the same terms and use.

Form D (earlier) · Aug 1, 2019 ↗Form D/A (later) · Dec 16, 2020 ↗Dianthus Therapeutics, Inc. — PartnerFacts page ↗
Sources
Note · May 14, 2020 – Jul 28, 2020

Offering amount changed between filings — Aegle Therapeutics Corp

The May 14, 2020 filing says $6,000,000 offered; the Jul 28, 2020 Form D/A says $6,500,000.

What this means The target raise changed. Raising the cap is common when a deal grows; ask whether the extra money has the same terms and use.

Form D/A (earlier) · May 14, 2020 ↗Form D/A (later) · Jul 28, 2020 ↗Aegle Therapeutics Corp — PartnerFacts page ↗
Sources
Note · Jan 7, 2020 – May 14, 2020

Offering amount changed between filings — Aegle Therapeutics Corp

The Jan 7, 2020 filing says an indefinite amount offered; the May 14, 2020 Form D/A says $6,000,000.

What this means The target raise changed. Raising the cap is common when a deal grows; ask whether the extra money has the same terms and use.

Form D (earlier) · Jan 7, 2020 ↗Form D/A (later) · May 14, 2020 ↗Aegle Therapeutics Corp — PartnerFacts page ↗
Sources
Note · May 10, 2010 – Jun 3, 2024

9 offerings have no amendment in the last 12 months and may still be open

No amendment in the last 12 months on an offering that may still be open — Interius BioTherapeutics, Inc. (latest filing Jun 3, 2024) · No amendment in the last 12 months on an offering that may still be open — ViTToria Biotherapeutics, Inc. (latest filing Dec 30, 2021) · No amendment in the last 12 months on an offering that may still be open — Dianthus Therapeutics, Inc. (latest filing Jun 7, 2021) · No amendment in the last 12 months on an offering that may still be open — Interius BioTherapeutics, Inc. (latest filing May 27, 2021) · No amendment in the last 12 months on an offering that may still be open — Dianthus Therapeutics, Inc. (latest filing Dec 16, 2020) · and 4 more

What this means SEC rules expect a yearly amendment while an offering is still going. Ask the sponsor which of these raises have closed.

Form D · Jun 3, 2024 ↗Interius BioTherapeutics, Inc. — PartnerFacts page ↗Form D · Dec 30, 2021 ↗ViTToria Biotherapeutics, Inc. — PartnerFacts page ↗
Sources
Note · May 20, 2010 – Jan 7, 2020

Leon O. Moulder, Jr. is written 3 different ways on the filings

listed as "Leon O. Moulder, Jr." on 9 filings (from May 20, 2010), and "Leon Moulder" on 5 filings (from Aug 1, 2019), and "Leon Moulder, Jr." on 8 filings (from Jan 7, 2020).

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 · May 20, 2010 ↗Form D · Aug 1, 2019 ↗Form D · Jan 7, 2020 ↗Leon O. Moulder, Jr. — PartnerFacts page ↗
Sources
Note · Aug 12, 2021 – Sep 10, 2026

Same name, different state: "Leon O. Moulder, Jr." (PA) is a separate record

This page covers filings where the address state is MA or FL or PA. A separate record, "Leon O. Moulder, Jr." with address state PA, is listed on 8 filings — most recently by Praeventix, Inc. (Sep 10, 2026). Both records have filings in the same period (Aug 12, 2021 to May 14, 2024).

What this means Two records with one name were active at the same time. That can be one person listing different company addresses, or two different people. We keep them apart until a filing ties them together. Check both pages before you decide.

Leon O. Moulder, Jr. (PA) — PartnerFacts page ↗Form D/A · Sep 10, 2026 ↗Praeventix, Inc. — PartnerFacts page ↗Leon O. Moulder, Jr. (MA,FL,PA) — this page ↗
Sources
Note · Jul 28, 2020 – Mar 3, 2026

Address moved from Miromar Lakes, FL to Woburn, MA — Aegle Therapeutics Corp

The people listed on the Jul 28, 2020 filing give Miromar Lakes, FL; on the Mar 3, 2026 filing they give Woburn, MA. The address now on file (400 Tradecenter, Suite 5900, Woburn, MA) is a registered-agent or shared-office address used by 9 issuers.

What this means A registered agent's address is a mailbox, not where the team works. Ask where the business actually operates.

Form D/A · Jul 28, 2020 ↗Form D · Mar 3, 2026 ↗Aegle Therapeutics Corp — PartnerFacts page ↗
Sources
Note · Aug 1, 2019 – Dec 16, 2020

Address moved from Miromar Lakes, FL to Waltham, MA — Dianthus Therapeutics, Inc.

The people listed on the Aug 1, 2019 filing give Miromar Lakes, FL; on the Dec 16, 2020 filing they give Waltham, MA.

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.

Form D · Aug 1, 2019 ↗Form D/A · Dec 16, 2020 ↗Dianthus Therapeutics, Inc. — PartnerFacts page ↗
Sources
Note · May 20, 2010 – Jun 21, 2011

Address moved from Lexington, MA to Waltham, MA — TESARO, Inc.

The people listed on the May 20, 2010 filing give Lexington, MA; on the Jun 21, 2011 filing they give Waltham, MA. The address now on file (1000 Winter Street, Suite 3300, Waltham, MA) is a registered-agent or shared-office address used by 36 issuers.

What this means A registered agent's address is a mailbox, not where the team works. Ask where the business actually operates.

Form D · May 20, 2010 ↗Form D · Jun 21, 2011 ↗TESARO, Inc. — PartnerFacts page ↗
Sources
Note · May 20, 2010 – Aug 28, 2026

Leon O. Moulder, Jr. is listed with 3 different address states: MA, FL, PA

MA on 12 filings (May 20, 2010 to Aug 28, 2026); FL on 8 filings (Aug 1, 2019 to Jun 3, 2024); PA on 2 filings (Dec 30, 2021 to Oct 20, 2023).

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.

Form D · May 20, 2010 ↗Form D · Aug 1, 2019 ↗Form D · Dec 30, 2021 ↗
Sources
Note · Nov 15, 2022

Formed in 2023 per the latest filing, but activity is dated 2022 — Zenas BioPharma, Inc.

The issuer's latest filing says it was formed in 2023. The Nov 15, 2022 filing says the first sale was Nov 2, 2022 — before that year.

What this means A company cannot sell before it exists, so one of the two dates is likely a typo on the form. Ask the sponsor for the formation document.

Form D · Nov 15, 2022 ↗Zenas BioPharma, Inc. — PartnerFacts page ↗
Sources
Note · May 20, 2010 – Mar 10, 2016

Reported revenue range changed between filings — TESARO, Inc.

"Decline to Disclose" (May 20, 2010); then "$1 - $1,000,000" (Mar 10, 2016).

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.

Form D · May 20, 2010 ↗Form D · Mar 10, 2016 ↗TESARO, Inc. — 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

1 of 19 offerings reports sales commissions totalling $3,000,000; 0 report finder's fees; 0 report proceeds to related persons.

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Aug 28, 2026 D
Aegle Therapeutics Corp
File 021-595786
$0$0$0None listed on this filingEDGAR ↗
Mar 3, 2026 D
Aegle Therapeutics Corp
File 021-575311
$0$0$0None listed on this filingEDGAR ↗
Jun 3, 2024 D
Interius BioTherapeutics, Inc.
File 021-514940
$0$0$0None listed on this filingEDGAR ↗
May 14, 2024 D
Zenas BioPharma, Inc.
File 021-513274
$0$0$0None listed on this filingEDGAR ↗
Oct 20, 2023 D
Interius BioTherapeutics, Inc.
File 021-495284
$0$0$0None listed on this filingEDGAR ↗
Nov 15, 2022 D
Zenas BioPharma, Inc.
File 021-464885
$0$0$0None listed on this filingEDGAR ↗
Apr 21, 2022 D
Dianthus Therapeutics, Inc.
File 021-442826
$3,000,000$0$0Jefferies LLC BrokerCheck CRD 2347 ↗
via Jefferies LLC (CRD 2347 ↗)
EDGAR ↗
Dec 30, 2021 D
ViTToria Biotherapeutics, Inc.
File 021-427409
$0$0$0None listed on this filingEDGAR ↗
Jun 7, 2021 D
Dianthus Therapeutics, Inc.
File 021-401968
$0$0$0None listed on this filingEDGAR ↗
May 27, 2021 D
Interius BioTherapeutics, Inc.
File 021-400861
$0$0$0None listed on this filingEDGAR ↗
Apr 29, 2021 D
Dianthus Therapeutics, Inc.
File 021-397658
$0$0$0None listed on this filingEDGAR ↗
Dec 16, 2020 D/A
Dianthus Therapeutics, Inc.
File 021-345590
$0$0$0None listed on this filingEDGAR ↗
Jul 28, 2020 D/A
Aegle Therapeutics Corp
File 021-357408
$0$0$0None listed on this filingEDGAR ↗
Mar 27, 2020 D
Interius BioTherapeutics, Inc.
File 021-363795
$0$0$0None listed on this filingEDGAR ↗
Feb 7, 2020 D
TamuroBio Inc.
File 021-360028
$0$0$0None listed on this filingEDGAR ↗
Apr 18, 2016 D
TESARO, Inc.
File 021-261523
$0$0$0None listed on this filingEDGAR ↗
Mar 10, 2016 D
TESARO, Inc.
File 021-258996
$0$0$0None listed on this filingEDGAR ↗
Jun 21, 2011 D
TESARO, Inc.
File 021-161614
$0$0$0None listed on this filingEDGAR ↗
May 20, 2010 D
TESARO, Inc.
File 021-142327
$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 7

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

AT
Biotechnology

Aegle Therapeutics Corp

Woburn, MA · Jan 7, 2020 → Aug 28, 2026 · 5 filings
  • Aug 28, 2026 · D · $2,277,698 sold of $2,277,698 · 17 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 3, 2026 · D · $455,695 sold of $700,000 · 10 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jul 28, 2020 · D/A · $6,500,000 sold of $6,500,000 · 8 investors · min. No minimum reported · role: Director EDGAR ↗
  • May 14, 2020 · D/A · $5,000,000 sold of $6,000,000 · 8 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jan 7, 2020 · D · $4,010,000 sold of Indefinite · 7 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $6.5M from 17 investors (100% of the $2.28M target) as of the latest filing. Leon is listed as director on 5 filings for this deal.

Latest filing on EDGAR ↗
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.

IB
Biotechnology

Interius BioTherapeutics, Inc.

Philadelphia, PA · Mar 27, 2020 → Jun 3, 2024 · 4 filings
  • Jun 3, 2024 · D · $51,432,536 sold of $82,509,197 · 12 investors · min. No minimum reported · role: Director EDGAR ↗
  • Oct 20, 2023 · D · $21,451,331 sold of $21,451,331 · 13 investors · min. No minimum reported · role: Director EDGAR ↗
  • May 27, 2021 · D · $43,625,657 sold of $76,344,951 · 25 investors · min. No minimum reported · role: Director EDGAR ↗
  • Mar 27, 2020 · D · $1,575,000 sold of $3,150,000 · 5 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $51.4M from 25 investors (62% of the $82.5M target) as of the latest filing. Leon is listed as director on 4 filings for this deal.

Latest filing on EDGAR ↗
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.

ZB
Biotechnology

Zenas BioPharma, Inc.

Waltham, MA · Nov 15, 2022 → May 14, 2024 · 2 filings
  • May 14, 2024 · D · $200,145,732 sold of $200,145,732 · 26 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Nov 15, 2022 · D · $183,898,435 sold of $183,898,435 · 17 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $200.1M from 26 investors (100% of the $200.1M target) as of the latest filing. Leon is listed as executive officer, director on 2 filings for this deal.

Latest filing on EDGAR ↗
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.

DT
Biotechnology

Dianthus Therapeutics, Inc.

Waltham, MA · Aug 1, 2019 → Apr 21, 2022 · 5 filings
  • Apr 21, 2022 · D · $100,000,000 sold of $100,000,000 · 22 investors · min. No minimum reported · role: Director EDGAR ↗
  • Jun 7, 2021 · D · $14,999,996 sold of $15,000,000 · 6 investors · min. No minimum reported · role: Director EDGAR ↗
  • Apr 29, 2021 · D · $7,722 sold of $7,722 · 1 investors · min. No minimum reported · role: Director EDGAR ↗
  • Dec 16, 2020 · D/A · $6,500,000 sold of $7,000,000 · 6 investors · min. No minimum reported · role: Director EDGAR ↗
  • Aug 1, 2019 · D · $1,642,500 sold of $3,500,000 · 2 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $100M from 22 investors (100% of the $100M target) as of the latest filing. Leon is listed as director on 5 filings for this deal.

Latest filing on EDGAR ↗
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.

VB
Biotechnology

ViTToria Biotherapeutics, Inc.

Philadelphia, PA · Dec 30, 2021
  • Dec 30, 2021 · D · $8,672,731 sold of $9,249,977 · 11 investors · min. No minimum reported · role: Director EDGAR ↗

Raised $8.67M from 11 investors (94% of the $9.25M target) as of the latest filing. Leon is listed as director.

Latest filing on EDGAR ↗
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.

T
Biotechnology

TamuroBio Inc.

Wayne, PA · Feb 7, 2020
  • Feb 7, 2020 · D · $4,000,000 sold of Indefinite · 1 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $4M from 1 investor as of the latest filing. Leon is listed as executive officer, director.

Latest filing on EDGAR ↗
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.

T
Pharmaceuticals

TESARO, Inc.

Waltham, MA · May 20, 2010 → Apr 18, 2016 · 4 filings
  • Apr 18, 2016 · D · $49,999,960 sold of $49,999,960 · 1 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Mar 10, 2016 · D · $154,999,915 sold of $154,999,915 · 7 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • Jun 21, 2011 · D · $40,000,000 sold of $101,000,000 · 17 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗
  • May 20, 2010 · D · $10,000,000 sold of $20,000,000 · 5 investors · min. No minimum reported · role: Executive Officer, Director EDGAR ↗

Raised $155M from 17 investors (100% of the $50M target) as of the latest filing. Leon is listed as executive officer, director on 4 filings for this deal.

Latest filing on EDGAR ↗
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: Pharmaceuticals / 506(b) (800 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 (1)

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

People around Leon 40

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET. Showing the 40 with the most shared filings.

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

Tomas Kiselak

Director · 7 shared filings (3 issuers) · also on 17 other issuers

Tomas Kiselak is on 20 issuers in total — a repeat sponsor. Their page lists every one.

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

Jonathan Violin

Executive Officer, Director · 5 shared filings (1 issuer) · also on 5 other issuers

Jonathan Violin is on 6 issuers in total — a repeat sponsor. Their page lists every one.

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

Evangelos Badiavas

Executive Officer, Director · 5 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Shelley Hartman

Executive Officer, Director · 5 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Mary Lynne Hedley

Executive Officer, Director · 4 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

David Mott

Director · 4 shared filings (1 issuer) · also on 23 other issuers

David Mott is on 24 issuers in total — a repeat sponsor. Their page lists every one.

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

David Schimel

Director · 4 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Joseph Farmer

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

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Beth Seidenberg

Director · 3 shared filings (1 issuer) · also on 28 other issuers

Beth Seidenberg is on 29 issuers in total — a repeat sponsor. Their page lists every one.

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

Robert Williamson, Jr.

Executive Officer, Director · 3 shared filings (1 issuer) · also on 3 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Dora Mitchell

Executive Officer · 3 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Elona Baum

Director · 3 shared filings (1 issuer) · also on 2 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Robert Ryan

Director · 3 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Kenneth Evan Thompson

Executive Officer · 3 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Arnold L. Oronsky

Director · 3 shared filings (1 issuer) · also on 14 other issuers

Arnold L. Oronsky is on 15 issuers in total — a repeat sponsor. Their page lists every one.

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

Earl M. Collier, Jr.

Director · 2 shared filings (1 issuer) · also on 6 other issuers

Earl M. Collier, Jr. is on 7 issuers in total — a repeat sponsor. Their page lists every one.

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

Richard Rodgers

Executive Officer · 2 shared filings (1 issuer) · also on 2 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Jeffrey Hanke

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Grant C. Bogle

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Garry A. Nicholson

Director · 2 shared filings (1 issuer) · also on 5 other issuers

Garry A. Nicholson is on 6 issuers in total — a repeat sponsor. Their page lists every one.

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

Lawrence Alleva

Director · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Martin H. Huber

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

James O. Armitage

Director · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Timothy R. Pearson

Executive Officer · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Paul E. Walker

Director · 2 shared filings (1 issuer) · also on 11 other issuers

Paul E. Walker is on 12 issuers in total — a repeat sponsor. Their page lists every one.

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

Hongbo Lu

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

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Scott Braunstein

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

Scott Braunstein is on 5 issuers in total — a repeat sponsor. Their page lists every one.

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

Benjamin Lund

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

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Philip R. Johnson, M.D.

Executive Officer, Director · 2 shared filings (1 issuer) · also on 1 other issuer

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

JAMES PATRICK BOYLAN

Director · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

JOHN JACOB ORLOFF

Director · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Bruce Peacock

Executive Officer, Director · 2 shared filings (2 issuers) · also on 4 other issuers

Bruce Peacock is on 6 issuers in total — a repeat sponsor. Their page lists every one.

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

PATRICK GERALD ENRIGHT

Director · 2 shared filings (1 issuer)

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Nicholas Anthony Siciliano

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

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Maxine Gowen

Executive Officer, Director · 1 shared filing (1 issuer) · also on 3 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Jake Nunn

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

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Asher Rubin

Executive Officer · 1 shared filing (1 issuer) · also on 3 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Paula Soteropoulos

Director · 1 shared filing (1 issuer) · also on 3 other issuers

Listed on the same filings as Leon O. Moulder, Jr.. Their page shows their other deals.

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

Patricia L. Allen

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

Patricia L. Allen is on 5 issuers in total — a repeat sponsor. Their page lists every one.

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

Geeta Vemuri

Executive Officer, Director · 1 shared filing (1 issuer) · also on 7 other issuers

Geeta Vemuri is on 8 issuers in total — a repeat sponsor. Their page lists every one.

The team behind the deals

Same business address

51 other issuers file from the same address (first 50 shown)

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 7 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 Leon O. Moulder, Jr. 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 7 issuers this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers Leon O. Moulder, Jr. is listed on: none on file. No website or social profile named in Zenas BioPharma, Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #100,302 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 (Waltham, MA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

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

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗Massachusetts MassCourts ↗Hillsborough County FL Clerk (HOVER) ↗Miami-Dade Clerk online case search ↗Pennsylvania UJS portal case search ↗

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 ↗Florida Secretary of State business search ↗Pennsylvania Secretary of State business search ↗OpenCorporates ↗

Change history

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