PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 12:00 AM ET

Sponsor Check › Person

Guy Macdonald

Related person on Form D filings · address state as listed: MA · listed Sep 23, 2009 → Jan 28, 2020

2issuers
7Form D filings
2009–2020years listed

Data last updated: Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 23, 2026, 11:57 PM ET · SEC enforcement last checked: not yet

Privacy: business-related public information only. Residential addresses are never shown; only the state from the filing.

Key records

The five facts investors ask about first. Each section states what was searched and when. Items still in human review are not shown.

1. Lawsuits

None found in sources searched.

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30) — federal district + bankruptcy courts; live RECAP re-check pending. State courts: not yet searched. PACER: not searched. · Last checked Oct 23, 2026, 11:57 PM ET.

State courts: not yet searched. 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

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. — not yet searched; 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: not yet searched.

Not yet searched.

Search queued. Results are added automatically; check back later or follow this page to be notified.

3. Bankruptcies

None found in sources searched.

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not yet searched. PACER: not searched (RECAP only). · Last checked Oct 23, 2026, 11:57 PM ET.

State courts: not yet searched. 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 are made for sponsors and sponsor groups, not individual people.

5. Money to insiders and sales commissions

3 of 6 offerings report sales commissions totalling $3,089,317; 0 report finder's fees; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

SourceOffering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell it
EDGAR ↗Jan 28, 2020 D
File 021-359132
$700,000$0$0H.C. Wainwright & Co. BrokerCheck CRD 375 ↗
EDGAR ↗Feb 27, 2015 D/A
File 021-232149
$1,589,317$0$0 (est.)Gilford Securities BrokerCheck CRD 8076 ↗
EDGAR ↗Feb 3, 2014 D
File 021-211174
$0$0$0 (est.)None listed on this filing
EDGAR ↗Jan 25, 2013 D
File 021-190828
$800,000 (est.)$0$0 (est.)Brock Capital Group BrokerCheck CRD 122156 ↗
Chris Laffey BrokerCheck CRD 122156 ↗
EDGAR ↗May 28, 2010 D
File 021-142724
$0$0$0None listed on this filing
EDGAR ↗Sep 23, 2009 D
File 021-94056
$0$0$0None listed on this filing

As reported by the issuer on Form D (Items 12–15), 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).

Appears on these filings

SourceIssuerRoleFiledFormOfferingSoldInvestorsMin. investment
EDGAR ↗TETRAPHASE PHARMACEUTICALS INC
group: Tetraphase
DirectorJan 28, 2020D$9,997,939
similar: $1,694,259–$16,000,000
$9,997,9391
similar: 1–13
No minimum reported
similar: $10,000–$55,000
EDGAR ↗Spring Bank Pharmaceuticals, Inc.DirectorFeb 27, 2015D/A$21,647,967
similar: $2,000,000–$19,999,994
$21,647,96772
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Spring Bank Pharmaceuticals, Inc.DirectorJan 14, 2015D$15,000,000
similar: $2,000,000–$19,999,994
$11,562,16825
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Spring Bank Pharmaceuticals, Inc.DirectorFeb 3, 2014D$6,333,250
similar: $2,000,000–$19,999,994
$6,333,25036
similar: 2–16
No minimum reported
similar: $10,000–$50,000
EDGAR ↗Spring Bank Pharmaceuticals, Inc.DirectorJan 25, 2013D$8,000,000
similar: $2,000,000–$19,999,994
$4,200,00043
similar: 2–16
$25,000
similar: $10,000–$50,000
EDGAR ↗TETRAPHASE PHARMACEUTICALS INC
group: Tetraphase
Executive Officer, DirectorMay 28, 2010D$45,000,000
similar: $1,694,259–$16,000,000
$44,750,00014
similar: 1–13
No minimum reported
similar: $10,000–$55,000
EDGAR ↗TETRAPHASE PHARMACEUTICALS INC
group: Tetraphase
Executive OfficerSep 23, 2009D$29,627,203
similar: $1,694,259–$16,000,000
$10,000,0009
similar: 1–13
No minimum reported
similar: $10,000–$55,000

Every row is a Form D or D/A on which the issuer listed this name as a related person. Related-person names are matched on first + last name and the address state on the filing; records that share a name but could not be tied together by a second identifier are listed separately below.

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Pharmaceuticals / 506(b) (800 filings); 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.

Connections as of Oct 23, 2026, 5:45 PM ET

Listed alongside — 27 names on the same filings (0 management entities, 27 people)

People and management entities the issuers listed as related persons on the same Form D filings as Guy Macdonald. Source: the EDGAR rows in the table above.

  • Douglas John Jensen — 4 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • Radhakrishnan Parameswaran Iyer — 4 shared filings (1 issuer) · roles as listed: Executive Officer, Director
  • David Arkowitz — 3 shared filings (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Jonathan Ellsworth Bates — 3 shared filings (1 issuer) · role as listed: Director
  • Lawrence G. Miller — 2 shared filings (1 issuer) · role as listed: Director · also listed on 6 other issuers
  • Robert Weisskoff — 2 shared filings (1 issuer) · role as listed: Director · also listed on 17 other issuers
  • Douglas Cole — 2 shared filings (1 issuer) · role as listed: Director · also listed on 8 other issuers
  • David Lubner — 2 shared filings (1 issuer) · role as listed: Executive Officer · also listed on 2 other issuers
  • Karl D. Handelsman — 2 shared filings (1 issuer) · role as listed: Director
  • Donald Moore Mitchell — 2 shared filings (1 issuer) · role as listed: Executive Officer
  • Michael Francis Cronin — 2 shared filings (1 issuer) · role as listed: Executive Officer
  • Eric M. Gordon — 2 shared filings (1 issuer) · role as listed: Director
  • L. Patrick Gage — 1 shared filing (1 issuer) · role as listed: Director · also listed on 1 other issuer
  • Garen Bohlin — 1 shared filing (1 issuer) · role as listed: Director · also listed on 6 other issuers
  • Steve Gullans — 1 shared filing (1 issuer) · role as listed: Director · also listed on 3 other issuers
  • Jonathon Ellsworth Bates — 1 shared filing (1 issuer) · role as listed: Director
  • Nezam Afdhal — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • John G. Freund — 1 shared filing (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Steven Boyd — 1 shared filing (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Keith Maher — 1 shared filing (1 issuer) · role as listed: Director · also listed on 2 other issuers
  • Gerri Henwood — 1 shared filing (1 issuer) · role as listed: Director
  • Larry Edwards — 1 shared filing (1 issuer) · roles as listed: Executive Officer, Director
  • Christopher Watt — 1 shared filing (1 issuer) · role as listed: Executive Officer
  • Nancy J. Wysenski — 1 shared filing (1 issuer) · role as listed: Director
  • Jeffrey A. Chodakewitz — 1 shared filing (1 issuer) · role as listed: Director
  • Gregg Beloff — 1 shared filing (1 issuer) · role as listed: Executive Officer · also listed on 3 other issuers
  • Maria Stahl — 1 shared filing (1 issuer) · role as listed: Executive Officer

Other offering types (Regulation A and Regulation Crowdfunding)

None found in sources searched.

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.

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