secwatch / observer
8-K filed March 31, 2026, 7:59 PM ET ticker ZBIO CIK 0001953926
debt confidence high sentiment neutral materiality 0.85

Zenas BioPharma raises ~$287M via convertible notes and equity to fund pipeline and launch

Zenas BioPharma, Inc.

Machine-readable event card

schema_version
secwatch.filing_event.v1
accession
0001104659-26-037821
form_type
8-K
ticker
ZBIO
cik
0001953926
company_name
Zenas BioPharma, Inc.
filed_at
2026-03-31T23:59:59+00:00
discovered_at
2026-05-14T18:02:36.867878+00:00
generated_at
2026-05-15T08:15:24.230300+00:00
sec_items
["1.01", "2.03", "8.01", "9.01"]
event_type
debt
sentiment
neutral
materiality_score
0.85
calibrated_materiality_score
0.85
confidence
high
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https://secwatch.observer/filing/0001104659-26-037821
json_url
https://secwatch.observer/filing/0001104659-26-037821.json
markdown_url
https://secwatch.observer/filing/0001104659-26-037821.md
text_url
https://secwatch.observer/filing/0001104659-26-037821.txt
edgar_index_url
https://www.sec.gov/Archives/edgar/data/1953926/000110465926037821/0001104659-26-037821-index.htm
edgar_primary_document_url
https://www.sec.gov/Archives/edgar/data/1953926/000110465926037821/tm2610711d1_8k.htm
generated_by_model
deepseek-v4-flash:cloud@v2
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false
corrected
false
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Source-grounded claims

a6be2966dc01ad169c2b96ebce72b6142aa1eadc

Zenas BioPharma, Inc. incurred convertible notes of $200,000,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 2.50% per year maturing April 1, 2032.

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

SEC 8-K Item 2.03/2.04 confidence 0.9 SEC evidence

1756ea41284f3da3d38ed67b90fb2a7ef099f0ad

Zenas BioPharma, Inc. entered into Indenture with U.S. Bank Trust Company, National Association valued at $200,000,000 aggregate principal amount (effective 2026-03-31).

Completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”). The Notes were issued pursuant to, and are governed by, an indenture (the “Base Indenture”), dated as of March 31, 2026, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as supplemented by a first supplemental indenture (the “Supplemental Indenture,” and the Base Indenture, as supplemented by the Supplemental Indenture, the “Indenture”), dated as of March 31, 2026, between the Company and the Trustee.

SEC 8-K Item 1.01/1.02 confidence 0.9 SEC evidence

Comparable filings

KNX

Knight-Swift closes $1.5B convertible note offering at 1.00% due 2031; proceeds used to repay term loans and revolver

Knight-Swift Transportation Holdings Inc. May 8, 2026, 7:59 PM ET debt Items 1.01, 2.03, 3.02, 8.01, 9.01

same fact type: debt_financing, material_agreement same SEC item: 1.01, 2.03, 8.01, 9.01 same event type: debt similar materiality

This filing

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

Comparable filing

On May 8, 2026, Knight-Swift Transportation Holdings Inc. (the "Company") completed its previously announced private offering (the "Offering") of $1.5 billion aggregate principal amount of 1.00% Convertible Senior Notes due 2031

Filing page SEC filing

PUMP

ProPetro issues $690M zero-coupon convertible notes due 2031, expands credit facility

ProPetro Holding Corp. May 7, 2026, 7:59 PM ET debt Items 1.01, 2.03, 3.02, 8.01, 9.01

same fact type: debt_financing, material_agreement same SEC item: 1.01, 2.03, 8.01, 9.01 same event type: debt similar materiality

This filing

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

Comparable filing

On May 7, 2026, ProPetro Holding Corp. (the “ Company ”), issued $690 million aggregate principal amount of its 0.00% Convertible Senior Notes due 2031

Filing page SEC filing

TBH

Brag House issues $2.5M convertible notes at 25% OID; proceeds for House of Doge merger

Brag House Holdings, Inc. May 8, 2026, 7:59 PM ET debt Items 1.01, 2.03, 3.02, 9.01

same fact type: debt_financing, material_agreement same SEC item: 1.01, 2.03, 9.01 same event type: debt similar materiality

This filing

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

Comparable filing

The issuance of the Notes in the aggregate original principal amount of $2,500,000 constitutes the creation of a direct financial obligation of the Company. The Notes bear interest at 12.0% per annum, mature on February 4, 2027

Filing page SEC filing

OCGN

Ocugen completes $115M convertible note offering at 6.75%, repays Avenue loan

Ocugen, Inc. May 7, 2026, 7:59 PM ET debt Items 1.01, 1.02, 2.02, 2.03, 3.02, 9.01

same fact type: debt_financing, material_agreement same SEC item: 1.01, 2.03, 9.01 same event type: debt similar materiality

This filing

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

Comparable filing

On May 7, 2026, Ocugen, Inc. (the “Company”) completed its previously announced private offering (the “offering”) of $115.0 million aggregate principal amount of 6.75% Convertible Senior Notes due 2034 (the “notes”).

Filing page SEC filing

TSEOF

Trinseo obtains $142.5M new money DIP financing and $150M AR facility in Chapter 11

Trinseo PLC June 1, 2026, 4:23 PM ET debt Items 1.01, 2.03, 9.01

same fact type: material_agreement same SEC item: 1.01, 2.03, 9.01 same event type: debt similar materiality

This filing

Completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”). The Notes were issued pursuant to, and are governed by, an indenture (the “Base Indenture”), dated as of March 31, 2026, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as supplemented by a first supplemental indenture (the “Supplemental Indenture,” and the Base Indenture, as supplemented by the Supplemental Indenture, the “Indenture”), dated as of March 31, 2026, between the Company and the Trustee.

Comparable filing

On May 28, 2026, the Company, as parent, Trinseo NA Finance LLC, as holdings, Trinseo Luxco Finance SPV S.à r.l. and Trinseo NA Finance SPV LLC (together, the “ SHC Borrowers ”), as borrowers, the guarantors party thereto from time to time, the lenders party thereto from time to time (the “ SHC DIP Lenders ”), and Alter Domus (US) LLC, as administrative agent and collateral agent, entered into a Senior Secured Super-Priority Debtor-In-Possession HoldCo Credit Agreement (the “ Super-Holdco DIP Credit Agreement ”), providing for a senior secured super-priority priming term loan debtor-in-possession credit facility in an aggregate principal amount of $157.5 million (the “ Super-Holdco DIP Facility ”).

Filing page SEC filing

ACURA PHARMACEUTICALS, INC

Acura's debt to related party grows to $10.3M; warns of possible shutdown without new financing by May-end

ACURA PHARMACEUTICALS, INC May 7, 2026, 7:59 PM ET debt Items 1.01, 2.01, 2.03, 9.01

same fact type: debt_financing same SEC item: 1.01, 2.03, 9.01 same event type: debt similar materiality

This filing

On March 31, 2026, Zenas BioPharma, Inc. (the “Company”) completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”).

Comparable filing

On each of March 30, 2026, April 3, 2026, April 20, 2026 and May 5, 2026, we received loans of $100,000 from Abuse Deterrent Pharma, LLC (“AD Pharma”).

Filing page SEC filing

ACH

Accendra Health launches $326.25M 9% first lien notes, $300M revolver, and exchange offers for existing notes

ACCENDRA HEALTH INC/VA/ May 11, 2026, 7:59 PM ET debt Items 1.01, 7.01, 9.01

same fact type: material_agreement same SEC item: 1.01, 9.01 same event type: debt similar materiality

This filing

Completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”). The Notes were issued pursuant to, and are governed by, an indenture (the “Base Indenture”), dated as of March 31, 2026, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as supplemented by a first supplemental indenture (the “Supplemental Indenture,” and the Base Indenture, as supplemented by the Supplemental Indenture, the “Indenture”), dated as of March 31, 2026, between the Company and the Trustee.

Comparable filing

On May 11, 2026, Accendra Health, Inc. (the “ Company ”) entered into a Commitment and Consent Letter (the “ Commitment Letter ”) with certain institutions that are (a)(i) holders of the Company’s 4.500% Senior Notes due 2029 (the “ 2029 Notes ”) and 6.625% Senior Notes due 2030 (the “ 2030 Notes ” and, together with the 2029 Notes, the “ Existing Notes ”), collectively holding approximately all of the outstanding principal amount of the 2029 Notes and approximately 83% of the outstanding principal amount of the 2030 Notes as of May 11, 2026 and (ii) lenders under the Company’s existing Term Loan Credit Agreement (as defined below) (collectively, the “ Commitment and Consenting Parties ” and each, a “ Commitment and Consenting Party ”), (b) certain lenders under the Company’s existing Term Loan Credit Agreement consenting solely with respect to the Term B-1 Term Loan Consent (as defined below) (the “ Term B-1 Term Loan Consenting Parties ”) and (c) all lenders under the Company’s Exist

Filing page SEC filing

WGRX

Wellgistics Health subsidiary enters forbearance agreement on $1.77M debt

Wellgistics Health, Inc. May 7, 2026, 7:59 PM ET debt Items 1.01, 9.01

same fact type: material_agreement same SEC item: 1.01, 9.01 same event type: debt similar materiality

This filing

Completed its public offering (the “Convertible Notes Offering”) of $200,000,000 aggregate principal amount of its 2.50% Convertible Senior Notes due 2032 (the “Notes”). The Notes were issued pursuant to, and are governed by, an indenture (the “Base Indenture”), dated as of March 31, 2026, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”), as supplemented by a first supplemental indenture (the “Supplemental Indenture,” and the Base Indenture, as supplemented by the Supplemental Indenture, the “Indenture”), dated as of March 31, 2026, between the Company and the Trustee.

Comparable filing

On May 1, 2026, Wellgistics, LLC (“Wellgistics”), a wholly owned subsidiary of Wellgistics Health, Inc. (the “Company”), entered into an Acknowledgment of Indebtedness, Forbearance and Repayment Agreement (the “Forbearance Agreement”) with Marco Capital, Inc. (“MCI”).

Filing page SEC filing

Source: SEC EDGAR
accession 0001104659-26-037821

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.