Sponsor Check › Person
Named as an officer, director or promoter on SEC Form D filings · CA, OR, WA · May 18, 2010 → Jan 26, 2012
Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:18 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET
William F. Willis is listed as an executive officer and director on 12 SEC Form D filings by 3 issuers between Apr 2009 and Jan 2026: iRhythm Technologies, Inc. (San Francisco, CA — other health care — 2009–2012; $27.3M reported sold to 17 investors), YorLabs, Inc. (Beaverton, OR — other health care — 2019–2021; $17.3M reported sold to 53 investors) and Rare Air Health, Inc. (Corvallis, OR — other health care — 2026; $4.7M reported sold to 24 investors).
What this means A repeat sponsor — 3 separate companies raised money with this person listed as executive officer and director, over about 17 years. Across those companies the filings report $49.4M sold in total.
Listed alongside William N. Starling (10 shared filings), Michael Goldberg (7 shared filings), ANSHUMALI ROY (6 shared filings), Roberta R. Katz (5 shared filings), CLARK BROOKS (4 shared filings) and 14 others.
What this means These are the other officers, directors or promoters the companies named on the same forms — the team around William. 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) — 10 bankruptcy cases matching the name listed in Key records below.
What this means 10 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 12 public filings for William F. Willis and found 10 differences: Bankruptcy case: Uday Kumar; No amendment in the last 12 months on an offering that may still be open; and more below.
What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.
Community search for William F. Willis has not run yet — it is joining a line of 62,423 names; searches run around the clock at the hosts' allowed rate. Searched so far: 734 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.
Five things investors ask first. Items still in human review are counted, not shown.
None found in sources searched — federal courts (CourtListener / RECAP), checked Oct 24, 2026
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, 2:18 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.
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
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 William F. Willis..
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).
10 cases: 10 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, 2:18 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
10 differences found between the filings for William F. Willis (compared 12 filings on Oct 24, 2026)
United States Bankruptcy Court, N.D. California docket "Uday Kumar" filed Sep 20, 2001, closed Nov 30, 2005. Uday N. Kumar (listed on the same filings) is listed as Debtor ("Uday Kumar"). Our match estimate: 70%.
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 latest filing for this offering is dated Nov 8, 2021 (first sale Oct 20, 2021). It reports $12,531,570 sold of $15,000,000 offered. No later amendment is in our index as of Oct 24, 2026.
What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.
The latest filing for this offering is dated Feb 11, 2021 (first sale Aug 7, 2020). It reports $2,514,334 sold of $3,000,000 offered. No later amendment is in our index as of Oct 24, 2026.
What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.
The latest filing for this offering is dated Oct 8, 2019 (first sale Aug 2, 2019). It reports $3,349,969 sold of $3,500,000 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.
The Aug 13, 2020 filing says $1,500,000 offered; the Feb 11, 2021 Form D/A says $3,000,000.
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.
The Aug 14, 2019 filing says $3,000,000 offered; the Oct 8, 2019 Form D/A says $3,500,000.
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.
The May 5, 2011 filing says $15,000,001 offered; the Oct 24, 2011 Form D/A says $22,149,652.
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.
listed as "William Willis" on 4 filings (from Apr 23, 2009), and "William F. Willis" on 8 filings (from May 18, 2010).
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.
"Biotechnology" (Aug 14, 2019 to Oct 8, 2019); then "Other Health Care" (Aug 13, 2020 to Nov 8, 2021).
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.
CA on 5 filings (Apr 23, 2009 to Jan 26, 2012); OR on 6 filings (Aug 14, 2019 to Nov 8, 2021); WA on 1 filing (Jan 2, 2026).
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.
None reported on 7 offerings — no sales commissions, finder's fees or proceeds to insiders
| Offering (latest filing) | Sales commissions | Finder's fees | To insiders | Paid to sell it | Source |
|---|---|---|---|---|---|
| Jan 2, 2026 D Rare Air Health, Inc. File 021-568675 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Nov 8, 2021 D/A YorLabs, Inc. File 021-419665 | $0 | $0 | $0 (est.) Excludes compensation paid to executive officers in the ordinary course of business. | None listed on this filing | EDGAR ↗ |
| Feb 11, 2021 D/A YorLabs, Inc. File 021-373109 | $0 | $0 | $0 (est.) Excluding compensation paid to executive officers in the ordinary course of business. | None listed on this filing | EDGAR ↗ |
| Oct 8, 2019 D/A YorLabs, Inc. File 021-346513 | $0 | $0 | $0 (est.) EXCLUDING COMPENSATION PAID TO EXECUTIVE OFFICERS IN THE ORDINARY COURSE OF BUSINESS. | None listed on this filing | EDGAR ↗ |
| Jan 26, 2012 D/A iRhythm Technologies, Inc. File 021-159307 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| May 18, 2010 D iRhythm Technologies, Inc. File 021-142240 | $0 | $0 | $0 | None listed on this filing | EDGAR ↗ |
| Apr 23, 2009 D iRhythm Technologies, Inc. File 021-99656 | $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 William F. Willis on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.
Raised $4.7M from 24 investors (100% of the $4.7M target) as of the latest filing. William 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. "Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Other Health Care / 506(b) (4,189 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 $17.3M from 53 investors (100% of the $15M target) as of the latest filing. William is listed as executive officer, director on 6 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: Other Health Care / 506(b) (4,189 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 $27.3M from 17 investors (100% of the $22.1M target) as of the latest filing. William is listed as executive officer, director on 5 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.
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.
William N. Starling is on 11 issuers in total — a repeat sponsor. Their page lists every one.
Michael Goldberg is on 11 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Vijay Lathi is on 14 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. Their page shows their other deals.
Listed on the same filings as William F. Willis. 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.
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); KY (Kentucky Secretary of State — Business Entity Search (sosbes.sos.ky.gov), searched by issuer name, data as of Oct 24, 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).
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.
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 William F. Willis 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.
Websites and social links of the issuers William F. Willis is listed on: none on file. No website or social profile named in iRhythm Technologies, Inc.'s SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #305,243 of 374,652 in line (1,386 issuers searched so far). One-tap searches: Look further ↓
One-tap searches on sites we do not index ourselves, with the name pre-filled (San Francisco, CA). 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 William F. Willis appears on a new Form D, or when a court case or SEC action is matched to them. See plans →