Sponsor Check › Person
Named as an officer, director or promoter on SEC Form D filings · MA · Mar 14, 2011 → Nov 18, 2022
Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:23 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET
Aaron Kleiner is listed as an executive officer and director on 7 SEC Form D filings by 3 issuers between Mar 2011 and Nov 2022: Airing Inc. (Burlington, MA — other technology — 2015–2022; $1.9M reported sold to 10 investors), ENCITE LLC (Burlington, MA — other energy — 2011; $650K reported sold to 7 investors) and MK Stem Cell Inc. (Newton Upper Falls, MA — biotechnology — 2015; $400K reported sold to 2 investors).
What this means A repeat sponsor — 3 separate companies raised money with this person listed as executive officer and director, over about 11 years. Across those companies the filings report $2.95M sold in total.
Listed alongside Arthur Anderson (7 shared filings), Stephen A. Marsh (5 shared filings), Philip M. Huyck (4 shared filings), Ken Pryde (2 shared filings), Peter H. Diamandis (2 shared filings) and 3 others.
What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Aaron. 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) — 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 7 public filings for Aaron Kleiner and found 8 differences, 1 worth asking the sponsor about: 4 filings report more than 10% of the money raised going to insiders; 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 Aaron Kleiner has not run yet — it is joining a line of 25,407 names; 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.
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, 2:23 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: 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 Aaron Kleiner..
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).
None found in sources searched — federal bankruptcy courts (CourtListener / RECAP), checked Oct 24, 2026
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, 2:23 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.
Comparisons cover issuers and sponsor groups — see the issuer pages under Deals
8 differences found between the filings for Aaron Kleiner — 1 worth asking about (compared 7 filings on Oct 24, 2026)
United States Bankruptcy Court, D. Massachusetts docket "Pryde Remodeling, Inc." filed May 23, 2024 (Open). Ken Pryde (listed on the same filings) is listed as Debtor ("Pryde Remodeling, Inc."). 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.
32% of the money raised went to insiders — Airing Inc. · 75% of the money raised went to insiders — MK Stem Cell Inc. · 100% of the money raised went to insiders — MK Stem Cell Inc. · 13% of the money raised went to insiders — Airing Inc.
What this means The filing reports how much of the money raised was paid to insiders. Over 10% is high for most deals. Ask what it paid for.
Airing Inc. (last filing Nov 18, 2022; $1,900,000 sold of $4,000,000); MK Stem Cell Inc. (last filing Jun 22, 2015; $400,000 sold of $4,000,000). 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.
The filing says the first sale was Dec 22, 2017. The Form D was filed Jan 18, 2018 — 27 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 12 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.
No amendment in the last 12 months on an offering that may still be open — Airing Inc. (latest filing Jan 18, 2018) · No amendment in the last 12 months on an offering that may still be open — Airing Inc. (latest filing Jan 30, 2017) · No amendment in the last 12 months on an offering that may still be open — MK Stem Cell Inc. (latest filing Jun 22, 2015) · No amendment in the last 12 months on an offering that may still be open — ENCITE LLC (latest filing Mar 14, 2011)
What this means SEC rules expect a yearly amendment while an offering is still going. Ask the sponsor which of these raises have closed.
The Apr 20, 2015 filing says $4,000,000 offered; the Jun 22, 2015 Form D/A says $2,000,000.
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.
The Apr 20, 2015 filing lists a minimum of $25,000; the Jun 22, 2015 Form D/A lists $10,000.
What this means A different minimum usually means the offering terms changed. Check which terms apply to you.
"Biotechnology" (Dec 29, 2015 to Jan 30, 2017); then "Other Technology" (Jan 18, 2018 to Nov 18, 2022).
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.
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.
0 of 5 offerings report sales commissions; 0 report finder's fees; 4 report proceeds to related persons totalling $1,220,000. (includes amounts the issuer reported as estimates)
| Offering (latest filing) | Sales commissions | Finder's fees | To insiders | Paid to sell it | Source |
|---|---|---|---|---|---|
| Nov 18, 2022 D Airing Inc. File 021-465333 | $0 | $0 | $360,000 (est.) Such payments to be made if Company sells Total Remaining to Be Sold. | None listed on this filing | EDGAR ↗ |
| Jan 18, 2018 D Airing Inc. File 021-303600 | $0 | $0 | $435,000 Such payments to be made if Company sells Total Remaining to Be Sold. | None listed on this filing | EDGAR ↗ |
| Jan 30, 2017 D/A Airing Inc. File 021-254079 | $0 | $0 | $125,000 (est.) Will be used to pay consulting fees, legal fees and salaries of officers and directors. | None listed on this filing | EDGAR ↗ |
| Jun 22, 2015 D/A MK Stem Cell Inc. File 021-238258 | $0 | $0 | $300,000 (est.) | None listed on this filing | EDGAR ↗ |
| Mar 14, 2011 D ENCITE LLC File 021-156648 | $0 | $0 | $0 Proceeds will be used to meet working capital requirements including ordinary payroll and the cost of legal services. The Executive Officer is a salaried employee and a director provides legal services to the issuer. | 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 Aaron Kleiner on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.
Raised $1.9M from 10 investors (48% of the $4M target) as of the latest filing. Aaron is listed as director on 4 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 Technology / 506(c) (805 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 $400K from 2 investors (20% of the $2M target) as of the latest filing. Aaron is listed as executive officer, director on 2 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 $650K from 7 investors (62% of the $1.05M target) as of the latest filing. Aaron 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.
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 Aaron Kleiner. Their page shows their other deals.
Listed on the same filings as Aaron Kleiner. Their page shows their other deals.
Listed on the same filings as Aaron Kleiner. Their page shows their other deals.
Listed on the same filings as Aaron Kleiner. Their page shows their other deals.
Peter H. Diamandis is on 20 issuers in total — a repeat sponsor. Their page lists every one.
Listed on the same filings as Aaron Kleiner. Their page shows their other deals.
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.
| Source | Filed | Form | Issuer | Amount offered (as reported) | Amount sold (as reported) | Matched on |
|---|---|---|---|---|---|---|
| EDGAR ↗ | Oct 31, 2017 File 020-23714 | Regulation Crowdfunding offering — amendment (Form C/A) Amendment filed · deadline Nov 2, 2018 | Airing Inc. Burlington, MA | $350,000 target · $1,000,000 maximum via Wefunder Portal LLC (CRD 283503 · FINRA funding portals ↗) | Not reported on this form | signer name on this filing (Aaron Kleiner) + listed as a related person on Form D filings of the same issuer (CIK 1661081) · 85% |
| EDGAR ↗ | Oct 31, 2017 File 020-23714 | Regulation Crowdfunding offering (Form C) Offering filed · deadline Nov 2, 2018 | Airing Inc. Burlington, MA | $350,000 target · $1,000,000 maximum via Wefunder Portal LLC (CRD 283503 · FINRA funding portals ↗) | Not reported on this form | signer name on this filing (Aaron Kleiner) + listed as a related person on Form D filings of the same issuer (CIK 1661081) · 85% |
Amounts are as reported by the issuer on the form; Regulation Crowdfunding forms report a target and maximum, not sales. Sources 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 · Last checked Oct 23, 2026, 8:41 PM ET.
Property records are matched to companies only, never to individuals, so none are matched to Aaron Kleiner 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 Aaron Kleiner is listed on, as found in their SEC filings (Form C, Reg A, Form ADV, EDGAR profile) or on the sponsor's own site; none belongs to the person unless the sponsor's site says so. Checked Oct 24, 2026.
One-tap searches on sites we do not index ourselves, with the name pre-filled (Burlington, MA). 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 Aaron Kleiner appears on a new Form D, or when a court case or SEC action is matched to them. See plans →