PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 4:59 AM ET

Sponsor Check › Sponsor group

OT

One Tusk

One sponsor team, 6 deal companies · New York, NY

Grouped because: 3 shared people, 2 shared management entities, same business address (6 issuers), similar issuer names (6) (automatic match from the filings) · not the same sponsor?

6deal companies
$288.8Mreported sold
32investors
23Form D filings
2016–2020active
0new, last 12 mo

Data last updated Oct 23, 2026, 5:45 PM ET · Latest filing in this group Jun 15, 2020 · Courts (RECAP) last checked: Oct 24, 2026, 2:16 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

One Tusk is a sponsor group of 6 issuers that PartnerFacts links to one sponsor (shared people, same business address, similar issuer names, shared management entity; automatic match from the filings), filing 23 Form D filings between Apr 2016 and Jun 2020.

What this means One team, 6 deal companies, about 4 years of track record in SEC filings. We link the companies because the same people or address appear on their forms — tap "Request a correction" if that is wrong.

Combined reported sold: $288.8M to 32 investors (latest filing per issuer). Industries as reported: Pooled Investment Fund (6). Issuers are based in NY (6).

What this means $288.8M raised across the group, about $9.03M per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.

Principal people: Neil Berman (6 issuers, executive officer and director), Wai-Yen Lau (6 issuers, executive officer), One Tusk Lapis Lazuli Capital Partners LLC (3 issuers, promoter, entity), Daniel Mandelbaum (2 issuers, executive officer), One Tusk Capital Partners LLC (2 issuers, promoter, entity) and 3 more.

What this means The person on the most companies is usually the one running the show; their page lists every deal.

Activity: 0 new offerings in the last 12 months; latest filing Jun 15, 2020.

What this means No new raise filed in the past year.

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

What this means Nothing turned up where we looked (4 sources). That does not prove there is nothing — it means none was found in those sources on that date.

We compared 23 public filings for One Tusk and found 6 differences, 3 worth asking the sponsor about: Daniel Mandelbaum is no longer listed on the Apr 27, 2018 amendment; Geoff Ruddick is no longer listed on the Apr 27, 2018 amendment; and more below.

What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.

What the community is saying

Community search for One Tusk has not run yet — it is joining a line of 3,310 names; searches run around the clock at the hosts' allowed rate. Searched so far: 27 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, 2:16 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 One Tusk..

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, 2:16 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

No comparisons published

What is compared

No public statement by this sponsor group has been collected yet, so there is nothing to compare. Sources compared: the sponsor's own website (known from the issuer's own filings — Form C issuer website, EDGAR company profile — an approved profile claim or Form ADV Item 1.I of its matched adviser) · SEC Form D · SEC Form ADV (IAPD) · Internet Archive · No website is on file for this sponsor group yet.

6 differences found between the filings for One Tusk — 3 worth asking about (compared 23 filings on Oct 24, 2026)

Worth asking · Apr 27, 2017 – Apr 27, 2018

Daniel Mandelbaum is no longer listed on the Apr 27, 2018 amendment — One Tusk Master Fund LP

Daniel Mandelbaum appears on the Apr 27, 2017 Form D/A (executive officer) but not on the Apr 27, 2018 Form D/A for the same offering.

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

Sources
Worth asking · Apr 27, 2017 – Apr 27, 2018

Daniel Mandelbaum is no longer listed on the Apr 27, 2018 amendment — One Tusk Partners Fund LP

Daniel Mandelbaum appears on the Apr 27, 2017 Form D/A (executive officer) but not on the Apr 27, 2018 Form D/A for the same offering.

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

Sources
Worth asking · Apr 27, 2017 – Apr 27, 2018

Geoff Ruddick is no longer listed on the Apr 27, 2018 amendment — One Tusk International Fund Ltd

Geoff Ruddick appears on the Apr 27, 2017 Form D/A (director) but not on the Apr 27, 2018 Form D/A for the same offering.

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

Sources
Note · Apr 27, 2018 – Apr 26, 2019

Wai-Yen Lau's role changed at One Tusk International Fund Ltd: director → executive officer

The Apr 27, 2018 filing lists Wai-Yen Lau as director; the Apr 26, 2019 Form D/A lists executive officer.

What this means Roles on Form D are self-reported by the issuer. A change can mean a real change in who runs the company, or just a different box ticked. Ask who makes decisions today.

Sources
Note · Jul 1, 2016 – Jun 15, 2020

6 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 — One Tusk Lapis Lazuli Offshore Fund LP (latest filing Jun 15, 2020) · No amendment in the last 12 months on an offering that may still be open — One Tusk Lapis Lazuli Master Fund LP (latest filing Jun 15, 2020) · No amendment in the last 12 months on an offering that may still be open — One Tusk Lapis Lazuli Partners Fund LP (latest filing Jun 15, 2020) · No amendment in the last 12 months on an offering that may still be open — One Tusk Master Fund LP (latest filing Apr 27, 2020) · No amendment in the last 12 months on an offering that may still be open — One Tusk International Fund Ltd (latest filing Apr 27, 2020) · and 1 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.

Sources
Note · Apr 27, 2020 – Jun 15, 2020

Member companies were formed in 2 different states

Cayman Islands (4), Delaware (2) — out of 6 member issuers. The odd ones out: One Tusk Partners Fund LP (Delaware); One Tusk Lapis Lazuli Partners Fund LP (Delaware).

What this means Sponsors often form each deal company in Delaware or Wyoming no matter where the property is. A mix is common; it just tells you which state's rules each company lives under.

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

None reported on 6 offerings — no sales commissions, finder's fees or proceeds to insiders

Per-offering detail
Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Jun 15, 2020 D/A
One Tusk Lapis Lazuli Master Fund LP
File 021-314649
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗
Jun 15, 2020 D/A
One Tusk Lapis Lazuli Partners Fund LP
File 021-314650
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗
Jun 15, 2020 D/A
One Tusk Lapis Lazuli Offshore Fund LP
File 021-344666
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗
Apr 27, 2020 D/A
One Tusk Partners Fund LP
File 021-262165
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗
Apr 27, 2020 D/A
One Tusk International Fund Ltd
File 021-262166
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗
Apr 27, 2020 D/A
One Tusk Master Fund LP
File 021-273537
$0$0$0
Management fees will be paid to One Tusk Investment Partners LP in its capacity as investment manager as described in the Issuer's offering documents.
None listed on this filingEDGAR ↗

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 all 6 issuers in this group — every filing in our index, latest filing per offering (SEC file number).

Property records 0 documents · 0 ownership records · last checked Oct 23, 2026, 8:59 PM ET · NYC and Cook County lookup still to run

0 recorded documents and 0 ownership records matched to One Tusk in the sources searched.

Not found in sources searched as of Oct 23, 2026, 8:59 PM ET: Hillsborough County FL Clerk of Court Official Records daily index (publicrec.hillsclerk.com D/P/M files), 2 daily files (Oct 14, 2026 to Oct 15, 2026) — loaded Oct 23, 2026, 8:59 PM ET; Florida DOR NAL roll (Hillsborough 39) roll year 2026 — loaded Oct 23, 2026, 8:54 PM ET; Florida DOR NAL roll (Dade 23) roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET; Harris County Appraisal District real_acct.txt roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET. Still to be looked up for this group: NYC ACRIS via NYC Open Data (Real Property Parties 636b-3b5g, Master bnx9-e6tj, Legals 8h5j-fqxa, Document Control Codes 7isb-wh4c) · NYC PLUTO ownership via NYC Open Data (64uk-42ks) · Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp). Records in other counties, and recorder indexes we do not yet cover, were not searched.

Property records coverage: New York City (ACRIS recorded documents and PLUTO ownership, looked up per issuer when its page is viewed; re-checked when the page is viewed again more than 30 days after the last check); Hillsborough County FL (recorded documents from Oct 14, 2026 forward; ownership from FL DOR roll 2026); Cook County IL (assessor ownership and deed/sale records, looked up per issuer when its page is viewed); Harris County TX and Dallas County TX (assessor ownership rolls only, 2026 roll; no deed, mortgage or sale records); Miami-Dade County FL (ownership from FL DOR roll only; Clerk recorded documents not covered). Recorder indexes for TX, AZ, IL and WA counties, mortgages and liens outside NYC and FL, lis pendens and foreclosure notices everywhere, Miami-Dade County FL recorded documents, Maricopa County AZ, King County WA, Salt Lake County UT, and all other counties are not covered — not searched. Last refresh by source: Hillsborough County FL Clerk daily index Oct 23, 2026, 8:59 PM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV Oct 23, 2026, 8:58 PM ET; Harris County Appraisal District real_acct.txt Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Dade 23) Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Hillsborough 39) Oct 23, 2026, 8:54 PM ET. NYC and Cook County are looked up per issuer when its page is viewed; the most recent such lookup on this site finished Oct 24, 2026, 3:30 AM ET. Parties are named as the recorder's index names them (role suffixes as recorded); no address, account number or trust date is shown for an individual, and individual owners of record (home ownership) are not matched or shown. Items still in human review are not shown.

Issuers in this group

Why each issuer is here is stated in the "Linked by" column. Low-confidence links are never shown — they wait for human review.

SourceIssuerLinked byLocationIndustryFilingsSold (max)InvestorsMin. investment (latest filing)Active
EDGAR ↗OT One Tusk International Fund Ltdshared people, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund5$32,509,292
offering Indefinite · similar: $155,000–$5,250,000
5
similar: 4–27
$100,000
similar: $1,000–$100,000
2016–2020
EDGAR ↗OT One Tusk Partners Fund LPshared people, shared management entity, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund5$31,158,938
offering Indefinite · similar: $155,000–$5,250,000
20
similar: 4–27
$1
similar: $1,000–$100,000
2016–2020
EDGAR ↗OT One Tusk Master Fund LPshared people, shared management entity, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund5$199,671,213
offering Indefinite · similar: $155,000–$5,250,000
4
similar: 4–27
$1
similar: $1,000–$100,000
2016–2020
EDGAR ↗OT One Tusk Lapis Lazuli Partners Fund LPshared people, shared management entity, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund3$500,000
offering Indefinite · similar: $155,000–$5,250,000
1
similar: 4–27
$1
similar: $1,000–$100,000
2018–2020
EDGAR ↗OT One Tusk Lapis Lazuli Master Fund LPshared people, shared management entity, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund3$20,000,000
offering Indefinite · similar: $155,000–$5,250,000
1
similar: 4–27
$100,000
similar: $1,000–$100,000
2018–2020
EDGAR ↗OT One Tusk Lapis Lazuli Offshore Fund LPshared people, shared management entity, same business address, similar issuer namesNEW YORK, NYPooled Investment Fund2$5,000,000
offering Indefinite · similar: $155,000–$5,250,000
1
similar: 4–27
$100,000
similar: $1,000–$100,000
2019–2020

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pooled Investment Fund / 506(b) (83,801 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.

Timeline of offerings

SourceFiledIssuerFormIndustryOfferedSold
EDGAR ↗Jun 15, 2020One Tusk Lapis Lazuli Offshore Fund LPD/APooled Investment FundIndefinite$5,000,000
EDGAR ↗Jun 15, 2020One Tusk Lapis Lazuli Master Fund LPD/APooled Investment FundIndefinite$20,000,000
EDGAR ↗Jun 15, 2020One Tusk Lapis Lazuli Partners Fund LPD/APooled Investment FundIndefinite$500,000
EDGAR ↗Apr 27, 2020One Tusk Master Fund LPD/APooled Investment FundIndefinite$199,671,213
EDGAR ↗Apr 27, 2020One Tusk International Fund LtdD/APooled Investment FundIndefinite$32,509,292
EDGAR ↗Apr 27, 2020One Tusk Partners Fund LPD/APooled Investment FundIndefinite$31,158,938
EDGAR ↗Jul 19, 2019One Tusk Lapis Lazuli Offshore Fund LPDPooled Investment FundIndefinite$0
EDGAR ↗Jun 14, 2019One Tusk Lapis Lazuli Partners Fund LPD/APooled Investment FundIndefinite$0
EDGAR ↗Jun 14, 2019One Tusk Lapis Lazuli Master Fund LPD/APooled Investment FundIndefinite$0
EDGAR ↗Apr 26, 2019One Tusk Master Fund LPD/APooled Investment FundIndefinite$163,871,213
EDGAR ↗Apr 26, 2019One Tusk International Fund LtdD/APooled Investment FundIndefinite$32,509,292
EDGAR ↗Apr 26, 2019One Tusk Partners Fund LPD/APooled Investment FundIndefinite$20,358,938
EDGAR ↗Jun 14, 2018One Tusk Lapis Lazuli Partners Fund LPDPooled Investment FundIndefinite$0
EDGAR ↗Jun 14, 2018One Tusk Lapis Lazuli Master Fund LPDPooled Investment FundIndefinite$0
EDGAR ↗Apr 27, 2018One Tusk Master Fund LPD/APooled Investment FundIndefinite$138,771,213
EDGAR ↗Apr 27, 2018One Tusk International Fund LtdD/APooled Investment FundIndefinite$22,509,292
EDGAR ↗Apr 27, 2018One Tusk Partners Fund LPD/APooled Investment FundIndefinite$15,358,938
EDGAR ↗Apr 27, 2017One Tusk Master Fund LPD/APooled Investment FundIndefinite$131,434,292
EDGAR ↗Apr 27, 2017One Tusk International Fund LtdD/APooled Investment FundIndefinite$22,159,292
EDGAR ↗Apr 27, 2017One Tusk Partners Fund LPD/APooled Investment FundIndefinite$9,275,000
EDGAR ↗Oct 31, 2016One Tusk Master Fund LPDPooled Investment FundIndefinite$0
EDGAR ↗Apr 27, 2016One Tusk International Fund LtdDPooled Investment FundIndefinite$0
EDGAR ↗Apr 27, 2016One Tusk Partners Fund LPDPooled Investment FundIndefinite$0

Activity: 0 new offerings in the last 12 months across all issuers in this group (new offering = a Form D that is not an amendment, D/A) · most recent filing Jun 15, 2020. Industry history, as reported on each offering's latest filing: All 6 offerings reported: Pooled Investment Fund (2016–2019).

People across the group

NameRolesIssuers hereFirst → last listed
WL Wai-Yen LauExecutive Officer6Apr 27, 2016 → Jun 15, 2020
NB Neil BermanDirector, Executive Officer6Apr 27, 2018 → Jun 15, 2020
OT One Tusk Lapis Lazuli Capital Partners LLC entityPromoter3Jun 14, 2018 → Jun 15, 2020
OT One Tusk Capital Partners LLC entityPromoter2Apr 27, 2016 → Apr 27, 2020
DM Daniel MandelbaumExecutive Officer2Apr 27, 2016 → Apr 27, 2017
EB Ebony Myles-BerryDirector1Apr 27, 2018 → Apr 27, 2020
DS David SungDirector1Apr 27, 2016 → Apr 27, 2020
GR Geoff RuddickDirector1Apr 27, 2016 → Apr 27, 2017

Adviser registration (Form ADV)

Searched SEC Form ADV bulk data (registered + exempt reporting advisers) (24,962 records as of Oct 2, 2026, 8:00 AM ET) — nothing matched One Tusk.

Meta advertising

No Meta Pixel ids or Facebook / Instagram page links on file for One Tusk as of Oct 24, 2026 — the sponsor website is read for them once it is on file (runs automatically). Meta Ad Library: not searched by PartnerFacts (no API access); a one-tap Ad Library search is under Look further.

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.

Public profiles and social

No website or social profile named in One Tusk's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #216,964 of 374,652 in line (14 issuers searched so far). One-tap searches: Look further ↓

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Change history

No corrections have been requested for this page.

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Sponsor response

Add a sourced explanation next to any fact. Reviewed before publishing.

Grouping is PartnerFacts' inference from public filings (shared related persons, management entities, business address). Everything else on this page is drawn from the filings themselves. Not the same sponsor? Request a correction.

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