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Deerfield group now holds 4.70% of BiomX (PHGE) stock, below 5%

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Deerfield-affiliated funds report reduced ownership in BiomX Inc. common stock, now below the 5% reporting threshold. Deerfield Management Company, L.P. and James E. Flynn each report beneficial ownership of 533,370 shares, representing 4.70% of BiomX’s common stock, based on 11,160,153 shares outstanding as of June 2, 2026.

Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P. each report 266,424 shares, or 2.37% of the class, including 177,789 shares of common stock and 88,635 shares underlying currently exercisable warrants. These warrants are subject to a 9.99% Beneficial Ownership Limitation that caps ownership upon exercise. As of June 16, 2026, the reporting group ceased to beneficially own more than five percent of BiomX’s common stock.

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Insights

Deerfield’s BiomX stake is now below 5%, with warrant exercises capped by a 9.99% limit.

The filing shows Deerfield-related entities now report 4.70% beneficial ownership, or 533,370 shares of BiomX common stock, based on 11,160,153 shares outstanding as of June 2, 2026. Individual Deerfield funds each report 266,424 shares, or 2.37% of the class.

Holdings include common shares plus warrants that are currently exercisable but constrained by a 9.99% Beneficial Ownership Limitation. This cap prevents further warrant exercises if they would push the group above that threshold. The filing also corrects a prior 18-share understatement from a Series X Preferred Stock conversion.

As of June 16, 2026, the group confirms it no longer beneficially owns more than five percent of BiomX common stock. Subsequent company filings may provide additional detail on any future ownership changes or warrant exercises within the 9.99% cap.

Total shares beneficially owned by Deerfield Management and Flynn 533,370 shares Represents 4.70% of BiomX common stock based on 11,160,153 shares outstanding as of June 2, 2026
Shares beneficially owned per Deerfield fund 266,424 shares Each of Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P.; equals 2.37% of the class
Shares outstanding baseline 11,160,153 shares BiomX common stock outstanding as of June 2, 2026, from definitive proxy statement
Common shares per fund 177,789 shares Common stock held by each of Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P.
Warrant shares per fund 88,635 shares Common shares underlying currently exercisable warrants for each fund, subject to 9.99% Beneficial Ownership Limitation
Beneficial Ownership Limitation 9.99% Cap on ownership after warrant exercise for holders and Section 13(d) group
Additional shares from Series X conversion 18 shares Common stock issued on May 28, 2026 from Series X Preferred conversion, previously omitted due to clerical error
Options held for Deerfield Management 522 shares Common stock issuable upon exercise of options held by Jonathan Leff for Deerfield Management’s benefit
Beneficial Ownership Limitation financial
"The provisions of the warrants restrict the exercise of such warrants to the extent that... would exceed 9.99%... (the "Beneficial Ownership Limitation")."
A beneficial ownership limitation is a rule that caps the percentage of a company’s shares an investor can be treated as owning or controlling for voting, regulatory or tax purposes. It matters to investors because it can restrict how many shares a person or group can buy or vote, affect takeover chances, and influence share liquidity and value — like a speed limit that prevents any single driver from taking over the whole road.
Section 13(d) "group" regulatory
"any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 9.99% of the total number of shares..."
Schedule 13D regulatory
"If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this..."
A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.
Series X Preferred Stock financial
"includes eighteen shares of Common Stock issued pursuant to the Funds' election to convert shares of Series X Preferred Stock into Common Stock..."
Series X preferred stock is a specific class of company shares that gives holders priority over common shareholders for dividend payments and payout if the company is liquidated, often with a set dividend rate or special conversion or voting terms. Think of it as a VIP ticket in line: it usually offers more income stability and protection but less upside from stock price gains, so investors weigh steady returns and safety against limited growth potential.
Nasdaq Global Market market
"All transactions reflected in Exhibit 99.10 to this Amendment were effected in open market transactions on the Nasdaq Global Market in the ordinary course..."
The Nasdaq Global Market is a section of the stock exchange where larger, well-established companies are listed and publicly traded. It functions like a marketplace where investors can buy and sell shares of these companies, providing them with access to capital and opportunities for growth. Its role is important because it helps investors identify and invest in reputable companies with strong financial backgrounds.
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Learn about SEC filing dates





09090D509

(CUSIP Number)
Deerfield Management Company
345 Park Avenue South, 12th Floor,
New York, NY, 10010
212-551-1600


Jonathan D. Weiner, Esq.
Katten Muchin Rosenman LLP, 50 Rockefeller Plaza
New York, NY, 10020
212-940-8800


Mark D. Wood, Esq.
Katten Muchin Rosenman LLP, 50 Rockefeller Plaza
New York, NY, 10020
212-940-8800

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
06/12/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D




Comment for Type of Reporting Person:
The number of shares of Common Stock beneficially owned by the Reporting Person consists of (i) 177,789 shares of Common Stock and (ii) an aggregate of 88,635 shares of Common Stock underlying warrants that are currently exercisable (subject to the Beneficial Ownership Limitation (as defined below)). The provisions of the warrants restrict the exercise of such warrants to the extent that, upon such exercise, the number of shares of Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 9.99% of the total number of shares of Common Stock then outstanding (the "Beneficial Ownership Limitation"). Accordingly, notwithstanding the number of shares reported, the reporting person disclaims beneficial ownership of the shares of Common Stock issuable upon the exercise of such warrants to the extent that upon such exercise the number of shares beneficially owned by all reporting persons hereunder, in the aggregate, would exceed the Beneficial Ownership Limitation.


SCHEDULE 13D




Comment for Type of Reporting Person:
Comprised of shares of Common Stock held by, and shares of Common Stock issuable upon exercise of warrants held by, Deerfield Private Design Fund V, L.P. See Comment to Type of Reporting Person for Deerfield Private Design Fund V, L.P.


SCHEDULE 13D




Comment for Type of Reporting Person:
The number of shares of Common Stock beneficially owned by the Reporting Person consists of (i) 177,789 shares of Common Stock and (ii) an aggregate of 88,635 shares of Common Stock underlying warrants that are currently exercisable (subject to the Beneficial Ownership Limitation (as defined below)). The provisions of the warrants restrict the exercise of such warrants to the extent that, upon such exercise, the number of shares of Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 9.99% of the total number of shares of Common Stock then outstanding (the "Beneficial Ownership Limitation"). Accordingly, notwithstanding the number of shares reported, the reporting person disclaims beneficial ownership of the shares of Common Stock issuable upon the exercise of such warrants to the extent that upon such exercise the number of shares beneficially owned by all reporting persons hereunder, in the aggregate, would exceed the Beneficial Ownership Limitation.


SCHEDULE 13D




Comment for Type of Reporting Person:
Comprised of shares of Common Stock held by, and shares of Common Stock issuable upon exercise of warrants held by, Deerfield Healthcare Innovations Fund II, L.P. See Comment for Type of Reporting Person 3 for Deerfield Healthcare Innovations Fund II, L.P.


SCHEDULE 13D




Comment for Type of Reporting Person:
Comprised of (i) shares of Common Stock held by, and shares of Common Stock issuable upon exercise of warrants held by, Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P (see Comment for Type of Reporting Person for each of Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P.); and (ii) 522 shares of Common Stock issuable upon exercise of options held by Jonathan Leff for the benefit, and at the direction, of Deerfield Management Company, L.P.


SCHEDULE 13D




Comment for Type of Reporting Person:
Comprised of (i) shares of Common Stock held by, and shares of Common Stock issuable upon exercise of warrants held by, Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P. (see Comment for Type of Reporting Person for each of Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P.); and (ii) 522 shares of Common Stock issuable upon exercise of options held by Jonathan Leff for the benefit, and at the direction, of Deerfield Management Company, L.P.


SCHEDULE 13D


Deerfield Private Design Fund V, L.P.
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026
Deerfield Mgmt V, L.P.
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026
Deerfield Healthcare Innovations Fund II, L.P.
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026
Deerfield Mgmt HIF II, L.P.
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026
Deerfield Management Company, L.P.
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026
James E. Flynn
Signature:/s/ Jonathan Isler
Name/Title:Jonathan Isler, Attorney-in-Fact
Date:06/16/2026

FAQ

What percentage of BiomX (PHGE) does Deerfield now beneficially own?

Deerfield Management Company, L.P. and James E. Flynn each report beneficial ownership of 533,370 BiomX common shares, representing 4.70% of the class. This percentage is calculated using 11,160,153 shares outstanding as of June 2, 2026, from BiomX’s definitive proxy statement.

How many BiomX (PHGE) shares do the individual Deerfield funds report?

Deerfield Private Design Fund V, L.P. and Deerfield Healthcare Innovations Fund II, L.P. each report beneficial ownership of 266,424 BiomX common shares, equal to 2.37% of the class. These amounts include both common stock and shares underlying currently exercisable warrants held by the respective funds.

What is the 9.99% Beneficial Ownership Limitation mentioned for BiomX (PHGE)?

The warrants held by the Deerfield funds contain a 9.99% Beneficial Ownership Limitation, which restricts exercise if it would cause the holder, affiliates, and any Section 13(d) group members to own more than 9.99% of BiomX’s outstanding common stock after giving effect to the exercise.

When did the Deerfield group fall below 5% ownership of BiomX (PHGE)?

The filing states that, as of June 16, 2026, the Deerfield reporting persons ceased to beneficially own more than five percent of BiomX’s common stock. At that point, they reported an aggregate beneficial ownership level of 4.70% of the company’s outstanding common shares.

How many BiomX (PHGE) shares are outstanding for the ownership calculations?

Ownership percentages in the filing are based on 11,160,153 shares of BiomX common stock outstanding as of June 2, 2026. This share count comes from BiomX’s definitive proxy statement on Schedule 14A filed with the SEC on June 8, 2026, and underpins all reported percentage figures.

What BiomX (PHGE) securities are included in Deerfield’s beneficial ownership?

Deerfield’s beneficial ownership includes common stock, common shares underlying currently exercisable warrants, and 522 shares issuable upon exercise of options held by Jonathan Leff for Deerfield Management’s benefit. The filing notes that 18 additional common shares from a Series X Preferred conversion were previously omitted by clerical error.