STOCK TITAN

BVF affiliates report 5.35M 4D shares (FDMT) and 8.48M pre-funded warrants

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

Rhea-AI Filing Summary

Biotechnology Value Fund and affiliated reporting persons amended a Schedule 13G/A to report their holdings in 4D Molecular Therapeutics as of March 31, 2026. The filing states the Reporting Persons hold Pre-Funded Warrants exercisable for an aggregate of 8,475,665 Shares, with the Pre-Funded Warrants Blocker limiting aggregate exercises to 2,467,230 Shares.

The filing discloses that BVF beneficially owned 3,907,517 Shares (≈7.3%), BVF2 beneficially owned 1,093,101 Shares (≈2.1%), Trading Fund OS beneficially owned 289,025 Shares (<1%), and that certain affiliated entities and persons may be deemed to beneficially own between 9.3% and 9.99% of outstanding Shares using the filing's denominator.

Positive

  • None.

Negative

  • None.

Insights

Grouped investment vehicles report concentrated holdings and exercise limits tied to pre-funded warrants.

The filing lists an aggregate of 8,475,665 Pre-Funded Warrants exercisable into common shares and a contractual cap (the Pre-Funded Warrants Blocker) that currently permits exercise of 2,467,230 Shares as of March 31, 2026. This constraint directly affects near-term potential dilution and voting/ownership thresholds disclosed.

Future changes in exercised warrants or the blocker waiver would be disclosed in subsequent statements; cash‑flow treatment and any exercise intentions are not stated in the provided excerpt.

Pre-Funded Warrants aggregate 8,475,665 shares aggregate exercisable into common shares as of March 31, 2026
Blocker-limited exercises 2,467,230 shares maximum exercisable under the Pre-Funded Warrants Blocker as of March 31, 2026
BVF beneficial ownership 3,907,517 shares BVF beneficially owned as of March 31, 2026 (≈7.3%)
BVF2 beneficial ownership 1,093,101 shares BVF2 beneficially owned as of March 31, 2026 (≈2.1%)
Trading Fund OS beneficial ownership 289,025 shares Trading Fund OS beneficially owned as of March 31, 2026 (&lt;1%)
Shares outstanding used 51,051,487 shares Shares outstanding as of March 16, 2026 used in percentage calculation
Aggregate reported by Partners/BVF Inc./Lampert 5,346,519 shares Aggregate beneficial ownership that may be deemed by certain affiliates (≈9.99%)
Pre-Funded Warrants financial
"the Reporting Persons held certain Pre-Funded Warrants exercisable for an aggregate of 8,475,665 Shares"
Pre-funded warrants are financial instruments that give investors the right to purchase a company's stock at a set price, but with most or all of the purchase price paid upfront. They function like a coupon or gift card for stock, allowing investors to buy shares later at a fixed price, which can be beneficial if they want to avoid future price increases. This makes them important for investors seeking flexibility and certainty in their investment plans.
Pre-Funded Warrants Blocker regulatory
"the Pre-Funded Warrants Blocker limits the aggregate exercise of the Pre-Funded Warrants held by the Reporting Persons"
Beneficially owned financial
"BVF beneficially owned 3,907,517 Shares, including 2,467,230 Shares underlying certain Pre-Funded Warrants"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Partners Managed Account financial
"the Reporting Persons and a certain Partners managed account (the "Partners Managed Account") held certain Pre-Funded Warrants"





35104E100

(CUSIP Number)
03/31/2026

(Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)




schemaVersion:


SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G



BIOTECHNOLOGY VALUE FUND L P
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF I GP LLC
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BIOTECHNOLOGY VALUE FUND II LP
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF II GP LLC
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
Biotechnology Value Trading Fund OS LP
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF Partners OS Ltd.
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF GP HOLDINGS LLC
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF PARTNERS L P/IL
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
BVF INC/IL
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert, Authorized Signatory
Date:05/15/2026
LAMPERT MARK N
Signature:/s/ Mark N. Lampert
Name/Title:Mark N. Lampert
Date:05/15/2026

FAQ

What stake does Biotechnology Value Fund (BVF) report in 4D Molecular Therapeutics (FDMT)?

BVF reports beneficial ownership of 3,907,517 Shares, representing approximately 7.3% of the class based on the filing's denominator. This count includes 2,467,230 Shares underlying exercisable pre-funded warrants subject to the filing's blocker limit.

How many Pre-Funded Warrants do the Reporting Persons hold in total?

The Reporting Persons and a Partners managed account hold an aggregate of 8,475,665 Pre-Funded Warrants exercisable for common shares. Contract terms limit aggregate exercise to 2,467,230 Shares under the stated blocker.

What is the "Pre-Funded Warrants Blocker" described in the filing?

The Pre-Funded Warrants Blocker is a contractual cap preventing exercise that would raise a holder's beneficial ownership above 9.99%. As of March 31, 2026, it limits the Reporting Persons to exercising 2,467,230 Shares of the warrants.

What aggregate ownership do BVF-affiliated entities report?

Affiliated entities and persons are reported as beneficially owning between 5,000,618 Shares (aggregate BVF and BVF2) and up to 5,346,519 Shares in the aggregate for Partners-held positions, with top-line percentages reported up to 9.99% using the filing's denominator.

What denominator did the filing use to calculate percentages?

Percentages use a denominator equal to 51,051,487 Shares outstanding as of March 16, 2026 plus 2,467,230 Shares underlying certain Pre-Funded Warrants, as stated in the filing's calculation.