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Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 7:45 AM ET

Sponsor Check › Person

MP
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Mark N Polebaum

Named as an officer, director or promoter on SEC Form D filings · MA · May 23, 2014 → Jan 26, 2017

2deals (issuers)
$8.78Breported sold
133investors
6Form D filings
2014–2017years on file

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:17 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Mark N Polebaum is listed as an executive officer on 6 SEC Form D filings by 2 issuers between May 2014 and Jan 2017: MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV (Boston, MA — pooled investment fund — 2016–2017; $8.61B reported sold to 132 investors) and MFS Commodity Strategy Portfolio (Boston, MA — pooled investment fund — 2014–2017; $169.9M reported sold to 1 investors).

What this means 2 separate companies raised money with this person listed as executive officer, over about 3 years. Across those companies the filings report $8.78B sold in total.

Listed alongside David L. DiLorenzo (6 shared filings), Robin A. Stelmach (6 shared filings), Mitchell C. Freestone (4 shared filings), David H. Gunning (2 shared filings), James O. Yost (2 shared filings) and 11 others.

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

All 2 issuers belong to the sponsor group Mfs (13 issuers, $7.7B reported sold, 2009–2026).

What this means A sponsor group is one team that sets up a new company for each deal. Mfs has 13 companies on file and $7.7B reported sold in total — the group page shows the whole track record in one place.

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 6 public filings for Mark N Polebaum and found 3 differences, 3 worth asking the sponsor about: Amount sold went down between filings; Mark N Polebaum is no longer listed on the Jan 24, 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 Mark N Polebaum has not run yet — it is joining a line of 26,805 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).

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, 2:17 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: VA (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 Mark N Polebaum..

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).

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, 2:17 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

3 differences found between the filings for Mark N Polebaum — 3 worth asking about (compared 6 filings on Oct 24, 2026)

Worth asking · Jan 30, 2015 – Jan 28, 2016

Amount sold went down between filings — MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV

The Jan 30, 2015 filing says $5,669,811,346 sold; the Jan 28, 2016 Form D/A says $4,387,278,866 sold — $1,282,532,480 less.

What this means Amounts sold normally only go up as a raise continues. A drop can mean investors were refunded, a figure was corrected, or an earlier number was wrong. Ask the sponsor which it was.

Sources
Worth asking · Jan 26, 2017 – Jan 24, 2018

Mark N Polebaum is no longer listed on the Jan 24, 2018 amendment — MFS Commodity Strategy Portfolio

Mark N Polebaum appears on the Jan 26, 2017 Form D/A (executive officer) but not on the Jan 24, 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 · Jan 26, 2017 – Jan 24, 2018

Mark N Polebaum is no longer listed on the Jan 24, 2018 amendment — MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV

Mark N Polebaum appears on the Jan 26, 2017 Form D/A (executive officer) but not on the Jan 24, 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
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 2 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
Jan 26, 2017 D/A
MFS Commodity Strategy Portfolio
File 021-217932
$0$0$0None listed on this filingEDGAR ↗
Jan 26, 2017 D/A
MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV
File 021-211409
$0$0$0None 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 every filing this person is listed on (latest filing per offering, per issuer).

Deals 2

Every issuer that named Mark N Polebaum on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

Pooled Investment Fund · group: Mfs

MFS Commodity Strategy Portfolio

Boston, MA · May 23, 2014 → Jan 26, 2017 · 4 filings
  • Jan 26, 2017 · D/A · $109,099,661 sold of Indefinite · 1 investors · min. No minimum reported · role: Executive Officer (Secretary & Clerk) EDGAR ↗
  • Jan 29, 2016 · D/A · $101,622,383 sold of Indefinite · 1 investors · min. No minimum reported · role: Executive Officer (Secretary & Clerk) EDGAR ↗
  • May 1, 2015 · D/A · $100,642,776 sold of Indefinite · 1 investors · min. No minimum reported · role: Executive Officer (Secretary & Clerk) EDGAR ↗
  • May 23, 2014 · D · $100,000 sold of Indefinite · 1 investors · min. No minimum reported · role: Executive Officer (Secretary & Clerk) EDGAR ↗

Raised $169.9M from 1 investor as of the latest filing. Mark is listed as executive officer on 4 filings for this deal.

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: 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.

Pooled Investment Fund · group: Mfs

MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV

Boston, MA · Jan 28, 2016 → Jan 26, 2017 · 2 filings
  • Jan 26, 2017 · D/A · $5,209,600,859 sold of Indefinite · 131 investors · min. No minimum reported · role: Executive Officer (Secretary and Clerk) EDGAR ↗
  • Jan 28, 2016 · D/A · $4,387,278,866 sold of Indefinite · 110 investors · min. No minimum reported · role: Executive Officer (Secretary and Clerk) EDGAR ↗

Raised $8.61B from 132 investors as of the latest filing. Mark is listed as executive officer on 2 filings for this deal.

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: 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.

Other pages with the same name (2)

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

  • Mark Polebaum — MA, 1 issuer, Mar 13, 2009 → Feb 6, 2014 · shares 1 issuer with this record
  • Mark L. Polebaum — MA, 1 issuer, May 29, 2014 → Jan 30, 2015 · shares 1 issuer with this record

People around Mark 16

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

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

David L. DiLorenzo

Executive Officer, Director · 6 shared filings (2 issuers)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

RS
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Person

Robin A. Stelmach

Director, Executive Officer · 6 shared filings (2 issuers)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

MF
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Person

Mitchell C. Freestone

Director · 4 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Robert J. Manning

Director · 2 shared filings (1 issuer) · also on 7 other issuers

Robert J. Manning is on 8 issuers in total — a repeat sponsor. Their page lists every one.

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

John P. Kavanaugh

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Michael Hegarty

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

David H. Gunning

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Laurie J. Thomsen

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Maureen R. Goldfarb

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Steven E. Buller

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Maryanne L. Roepke

Director · 2 shared filings (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

JY
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Person

James O. Yost

Executive Officer · 2 shared filings (2 issuers)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

John M. Corcoran

Executive Officer, Director · 1 shared filing (1 issuer) · also on 10 other issuers

John M. Corcoran is on 11 issuers in total — a repeat sponsor. Their page lists every one.

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

Robert W. Uek

Director · 1 shared filing (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

Robert E. Butler

Director · 1 shared filing (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

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

William R. Gutow

Director · 1 shared filing (1 issuer)

Listed on the same filings as Mark N Polebaum. Their page shows their other deals.

The team behind the deals

Sponsor group

Mfs

13 issuers · 161 filings · $7.7B reported sold · 2009–2026

One team, 13 deal companies. Mark N Polebaum is listed on 2 of them.

Sources

Issuers are grouped when their Form D filings share related persons, a management entity or a business address (automatic match from the filings). "Listed" marks the issuers that name Mark N Polebaum.

Same business address

19 other issuers file from the same address

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 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.

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 Mark N Polebaum 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.

Public profiles and social

Websites and social links of the issuers Mark N Polebaum is listed on: none on file. No website or social profile named in MFS INSTITUTIONAL MONEY MARKET PORTFOLIO, A SERIES OF THE MFS SERIES TRUST XIV's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #43,962 of 374,652 in line (1,312 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 (Boston, MA). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Change history

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