Sponsor Check › Person
Named as an officer, director or promoter on SEC Form D filings · WI, MA, MD · Jul 11, 2017 → Aug 18, 2020
Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:40 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET
Patrick Zenner is listed as a director on 8 SEC Form D filings by 2 issuers between Jun 2009 and Jul 2024: Cartesian Therapeutics, Inc. (Gaithersburg, MD — biotechnology — 2017–2024; $130M reported sold to 26 investors) and EXACT SCIENCES CORP (Marlborough, MA — biotechnology — 2009; $8.2M reported sold to 11 investors).
What this means 2 separate companies raised money with this person listed as director, over about 15 years. Across those companies the filings report $138.2M sold in total.
Listed alongside Timothy Barabe (7 shared filings), Aymeric Sallin (6 shared filings), Carsten Brunn (6 shared filings), Timothy Springer (6 shared filings), Carrie S. Cox (5 shared filings) and 34 others.
What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Patrick. 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, CT, DE, FINRA, GA, HI, ID, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NASAA, NC, ND, NH, NM, NV, OK, OR, PA, RI, SC, SD, TN, TX, VT, WA, WI, WV, WY) — 8 court cases matching the name, 8 bankruptcy cases matching the name listed in Key records below.
What this means 16 records came back, including 3 court cases still open — open cases can take years and cost money. 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 8 public filings for Patrick Zenner and found 7 differences: Bankruptcy case: David Siewers; Form D filed 18 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.
Community search for Patrick Zenner has not run yet — it is #21,117 of 23,056 in line; searches run around the clock at the hosts' allowed rate. Searched so far: 638 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).
Five things investors ask first. Items still in human review are counted, not shown.
8 cases: 3 open, 4 dismissed, 1 judgment
480 Consumer Credit· Cause:
15:1692 Fair Debt Collection Act
190 Contract: Other· Cause:
28:1332 Diversity-Contract Dispute
480 Consumer credit
290 Other real property actions
890 Other statutory actions
890 Other statutory actions
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, 2:40 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.
None found in sources searched — SEC enforcement releases (index scan as of Oct 24, 2026, 2:50 AM ET) · state securities regulators: VA (crawled Oct 23, 2026)
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 Patrick Zenner..
State securities regulators: Securities regulators searched (3,318 actions): 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), DE DOJ Investor Protection Unit (257 actions, 1987–2026), TX State Securities Board (586 actions, 2006–2026), WA DFI (2,039 actions, 2001–2026) — last crawled Oct 23, 2026, 9:57 PM ET. No machine-readable public listing today for CO, FL, IA, IN, MN, NE, NJ, NY, OH, UT, VA (see docs/state-regulators.md).
8 cases: 1 open, 7 closed (disposition not in docket feed)
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, 2:40 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.
Comparisons cover issuers and sponsor groups — see the issuer pages under Deals
7 differences found between the filings for Patrick Zenner (compared 8 filings on Oct 24, 2026)
United States Bankruptcy Court, D. Massachusetts docket "David Siewers" filed Jan 26, 1990, closed Aug 18, 1992. David Siewers (listed on the same filings) is listed as Debtor ("David Siewers"). Our match estimate: 65%.
What this means A bankruptcy filing was found. Many are old or personal and have nothing to do with the deal — but ask what it was and when it closed.
The filing says the first sale was Nov 13, 2023. The Form D was filed Dec 1, 2023 — 18 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 3 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.
The filing says the first sale was Jul 31, 2020. The Form D was filed Aug 18, 2020 — 18 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 3 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.
listed as "Patrick J Zenner" on the Jun 16, 2009 filing, and "Patrick Zenner" on 7 filings (from Jul 11, 2017).
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.
This page covers filings where the address state is WI or MA or MD. A separate record, "Patrick Zenner" with address state CA, is listed on 1 filing — most recently by NEXTWAVE PHARMACEUTICALS Inc (Jan 25, 2011). The two records do not overlap in time: this page runs Jul 11, 2017 to Aug 18, 2020; the other has one filing dated Jan 25, 2011.
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.
The people listed on the Aug 18, 2020 filing give Watertown, MA; on the Dec 1, 2023 filing they give Gaithersburg, MD. The address now on file (704 Quince Orchard Rd, Gaithersburg, MD) 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.
WI on 1 filing (Jun 16, 2009); MA on 4 filings (Jul 11, 2017 to Aug 18, 2020); MD on 3 filings (Dec 1, 2023 to Jul 17, 2024).
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.
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.
3 of 7 offerings report sales commissions totalling $11,809,980; 0 report finder's fees; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)
| Offering (latest filing) | Sales commissions | Finder's fees | To insiders | Paid to sell it | Source |
|---|---|---|---|---|---|
| Jul 17, 2024 D Cartesian Therapeutics, Inc. File 021-519022 | $4,969,980 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Dec 4, 2023 D/A Cartesian Therapeutics, Inc. File 021-498655 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Aug 18, 2020 D Cartesian Therapeutics, Inc. File 021-373471 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Jan 2, 2020 D Cartesian Therapeutics, Inc. File 021-357026 | $4,200,000 | $0 | $0 | Cantor Fitzgerald LP BrokerCheck CRD 134 ↗ Needham & Company BrokerCheck CRD 16360 ↗ Canaccord Genuity LLC BrokerCheck CRD 1020 ↗ Janney Montgomery Scott LLC BrokerCheck CRD 463 ↗ | EDGAR ↗ |
| Sep 4, 2019 D Cartesian Therapeutics, Inc. File 021-347952 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Jul 11, 2017 D Cartesian Therapeutics, Inc. File 021-290444 | $2,640,000 (est.) | $0 | $0 | Stifel, Nicolaus & Company Incorporated BrokerCheck CRD 793 ↗ | EDGAR ↗ |
| Jun 16, 2009 D EXACT SCIENCES CORP File 021-46081 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
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).
Every issuer that named Patrick Zenner on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.
Raised $130M from 26 investors (100% of the $130M target) as of the latest filing. Patrick is listed as director on 7 filings for this deal.
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.
Raised $8.2M from 11 investors (100% of the $8.2M target) as of the latest filing. Patrick is listed as director.
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.
Separate person records under the same name, not combined with this page. Each line says whether it shares an issuer with this record.
Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Timothy Springer is on 7 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Amir Nashat is on 29 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Peter Barton Hutt is on 15 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
Listed on the same filings as Patrick Zenner. Their page shows their other deals.
A shared address can mean the same team, a shared office building or a registered agent. It is a lead, not a conclusion.
None of the 2 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.
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 are matched to companies only, never to individuals, so none are matched to Patrick Zenner 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 2 issuers this person is listed on — nothing matched.
Websites and social links of the issuers Patrick Zenner is listed on: none on file. No website or social profile named in Cartesian Therapeutics, Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #94,485 of 374,652 in line (1,156 issuers searched so far). One-tap searches: Look further ↓
One-tap searches on sites we do not index ourselves, with the name pre-filled (Gaithersburg, MD). Each opens in a new tab; what you find there is not verified by PartnerFacts.
No corrections have been requested for this page.
Free. Logged with status: received → under review → fixed / confirmed with source.
If this is you or your firm, add a sourced explanation next to any fact. Reviewed before publishing.
Members get an email when Patrick Zenner appears on a new Form D, or when a court case or SEC action is matched to them. See plans →