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Baker Bros. reports 7.8% stake in BeOne

Baker Bros.-affiliated funds report 7.8% beneficial ownership of BeOne Medicines (ONC) and detail a financed exercise of share options adding 30,768 ADS.

(Moderate)
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

BeOne Medicines Ltd. (ONC) received an amended Schedule 13D from investment entities affiliated with Baker Bros., updating their ownership and recent transactions in the company’s Ordinary Shares and ADS. Baker Bros. Advisors LP and Baker Bros. Advisors (GP) LLC each report beneficial ownership of 115,457,154 Ordinary Shares, representing 7.8% of the outstanding class. Julian C. Baker and Felix J. Baker each report beneficial ownership of 115,912,814 Ordinary Shares, also 7.8%, while FBB3 LLC reports 144,517 Ordinary Shares, or 0.01%.

The filing notes that on September 14, 2026, the adviser funded the exercise of Share Options held by employees Michael Goller and Ranjeev Krishana, resulting in the acquisition of 30,768 ADS (equivalent to 399,984 Ordinary Shares) at $36.83 per ADS, for total consideration of $1,133,185.44. These exercises were financed through draws of $94,095.86 on the 667 revolving note and $1,039,089.58 on the Life Sciences revolving note, each bearing interest at 5.12% per annum and due by May 1, 2053 or earlier upon sale of the ADS. The Baker entities state they hold their positions for investment purposes and may increase or decrease their holdings depending on various factors.

Positive

  • None.

Negative

  • None.

Filing Explained

The exercise is complete, but the Adviser controls the acquired ADS and their sale proceeds; additional options remain exercisable under stated expiration rules.

The proceeds agreements give the Adviser dispositive power over the 30,768 acquired ADS and control over when the options are exercised; the former directors have no voting, dispositive, or direct pecuniary interest in those securities, and sale proceeds are remitted to the Adviser.

Each former director still holds 263,445 Share Options, which remain exercisable until the earlier of the original grant expiration or three years after the person’s final board-service date; this amendment therefore also reports outstanding exercise rights rather than another completed issuance.

Beneficial ownership – Adviser 115,457,154 Ordinary Shares (7.8%) Reported by Baker Bros. Advisors LP and Baker Bros. Advisors (GP) LLC
Beneficial ownership – Julian and Felix Baker 115,912,814 Ordinary Shares each (7.8%) Reported beneficial ownership stakes in BeOne Medicines
Beneficial ownership – FBB3 LLC 144,517 Ordinary Shares (0.01%) Ordinary Shares beneficially owned through ADS
ADS acquired via option exercises 30,768 ADS (399,984 Ordinary Shares) Exercised on September 14, 2026 at $36.83 per ADS
Total cost of ADS option exercises $1,133,185.44 Exercise of ADS options held by Michael Goller and Ranjeev Krishana
Revolver draws $94,095.86 (667) and $1,039,089.58 (Life Sciences) Funds drawn on September 14, 2026 to finance ADS acquisitions
Revolver interest rate 5.12% per annum Long-term applicable federal rate on September 14, 2026 draws
Ordinary Shares outstanding baseline 1,478,124,405 Ordinary Shares Outstanding as of July 31, 2026, used for ownership percentages
American Depositary Shares financial
"This CUSIP 07725L102 applies to the American Depositary Shares ("ADS")"
American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.
beneficially owned financial
"The Ordinary Shares the Issuer reported that are beneficially owned through 8,799,053 ADS"
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.
Share Options financial
"exercised options to purchase Ordinary Shares or ADS ("Share Options")"
Share options are contracts that give someone the right, but not the obligation, to buy a company’s stock at a predetermined price for a limited time—think of them like a coupon to purchase shares later at a set price. They matter to investors because when exercised they increase the number of outstanding shares (dilution), can change management incentives and company value, and represent a potential future claim on profits or equity.
restricted share units financial
"vested of RSUs in connection with their previous service on the Board"
Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.
revolving note financial
"drew down $94,095.86 for the purpose of acquiring ADS from a revolving note"
dispositive power financial
"the Adviser will have dispositive power as well as the ability to control"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much of BeOne Medicines Ltd. (ONC) do Baker Bros.-affiliated entities beneficially own?

Baker Bros. Advisors LP and Baker Bros. Advisors (GP) LLC each report beneficial ownership of 115,457,154 Ordinary Shares, and Julian C. Baker and Felix J. Baker each report 115,912,814 Ordinary Shares, corresponding to 7.8% of BeOne Medicines’ outstanding Ordinary Shares.

What new BeOne Medicines (ONC) securities were acquired through option exercises?

On September 14, 2026, Share Options held by Michael Goller and Ranjeev Krishana were exercised to acquire 30,768 ADS of BeOne Medicines at $36.83 per ADS, corresponding to 399,984 Ordinary Shares issued in the form of ADS.

How were the BeOne Medicines (ONC) ADS option exercises financed?

The adviser drew $94,095.86 from the 667 Revolver and $1,039,089.58 from the LS Revolver, each bearing 5.12% per annum interest and due on May 1, 2053 or earlier if the ADS are sold, to fund the option exercises totaling $1,133,185.44.

What is the ADS-to-Ordinary Share ratio for BeOne Medicines (ONC)?

Each American Depositary Share (ADS) of BeOne Medicines represents thirteen Ordinary Shares, according to the filing’s description of CUSIP 07725L102 and the company’s ADS structure.

What share count did BeOne Medicines (ONC) report as outstanding for ownership calculations?

Ownership percentages are based on 1,478,124,405 Ordinary Shares outstanding as of July 31, 2026, as reported in BeOne Medicines’ Form 10‑Q filed on August 5, 2026, with adjustments for certain options and ADS issuances described in the filing.

How many BeOne Medicines (ONC) Ordinary Shares do the Funds directly hold via ADS?

The Funds directly hold 114,387,689 Ordinary Shares through 8,799,053 ADS, as set out in Exhibit 99.1 and referenced in the ownership discussion for Baker Bros.-affiliated entities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates





07725L102

(CUSIP Number)
Alexandra A. Toohey, CFO
860 Washington Street, 3rd Floor,
New York, NY, 10014
212-339-5690

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
09/14/2026

(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).




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SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


Baker Bros. Advisors LP
Signature:/s/ Scott L. Lessing
Name/Title:Scott L. Lessing/ President By: Baker Bros. Advisors (GP) LLC, its general partner
Date:09/16/2026
Baker Bros. Advisors (GP) LLC
Signature:/s/ Scott L. Lessing
Name/Title:Scott L. Lessing/ President
Date:09/16/2026
Julian C. Baker
Signature:/s/ Julian C. Baker
Name/Title:Julian C. Baker
Date:09/16/2026
Felix J. Baker
Signature:/s/ Felix J. Baker
Name/Title:Felix J. Baker
Date:09/16/2026
FBB3 LLC
Signature:/s/ Julian C. Baker
Name/Title:Julian C. Baker
Date:09/16/2026

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