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Baker Bros. Ups Kymera (KYMR) Ownership to 9.5% via $44 Offering

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

Rhea-AI Filing Summary

Baker Bros. Advisors LP and affiliates have filed Amendment No. 2 to Schedule 13D disclosing a 9.5% beneficial stake in Kymera Therapeutics, Inc. (KYMR). The group – Baker Bros. Advisors LP, Baker Bros. Advisors (GP) LLC, and principals Julian C. Baker and Felix J. Baker – now control 6,666,540 shares of common stock, based on 70,157,214 shares outstanding as of 30 Jun 2025.

Recent transaction. On 26 Jun 2025 Kymera priced a public offering of 5,044,500 shares at $44.00 and 655,500 prefunded warrants at $43.9999. Funds managed by Baker Bros. purchased 655,500 common shares and 655,500 prefunded warrants (split 55,191/600,309 between 667 LP and Life Sciences LP). The offering closed 30 Jun 2025.

  • Voting / dispositive power: Sole voting and dispositive power over all 6.67 M shares.
  • Prefunded warrants: 1-for-1 conversion at $0.0001, exercisable indefinitely but capped at a 4.99% ownership limit (adjustable up to 19.99% with 61 days’ notice).
  • Registration rights: Funds obtained shelf and underwritten offering rights (up to three offerings over ten years) effective from 28 Feb 2026.
  • Director lock-up: Felix Baker agreed not to sell KYMR securities until 24 Sep 2025 (subject to customary exceptions).

The filing emphasises that the position is investment-motivated; the funds may buy or sell additional securities depending on prevailing conditions, and no plans for extraordinary corporate actions are currently disclosed.

Positive

  • High-calibre biotech investor Baker Bros. increased ownership to 9.5%, signalling conviction in KYMR’s prospects.
  • $57.3 m direct purchase in the June offering strengthens Kymera’s cash position and reduces capital risk.
  • 90-day lock-up on Felix Baker’s holdings limits near-term selling pressure.

Negative

  • Potential dilution: 655,500 prefunded warrants and stock options could add ~0.9% to share count once exercisable.
  • Registration rights enable future secondary sales after Feb 2026, which may create overhang.

Insights

TL;DR – Baker Bros. lifts KYMR stake to 9.5%, signals confidence via $44 follow-on purchase.

The Bakers are among the most respected specialist investors in biotech, often taking concentrated positions in late-platform stories. Their decision to absorb roughly 13% of the follow-on ($57.3 m of the $222 m equity raise) materially reduces financing overhang risk for Kymera and aligns the company with a supportive long-term holder. Registration rights and a 90-day lock-up suggest the investment horizon is at least mid-term. While the 4.99% warrant cap limits near-term dilution, the eventual exercise could add ~0.9% to the share count. Overall, this ownership update is incrementally positive for sentiment and improves Kymera’s balance-sheet flexibility.

TL;DR – Neutral governance impact; potential future dilution modest but monitor warrant cap.

The filing contains no activism trigger or board change. Control remains below the 10% threshold that could attract heightened scrutiny. Prefunded warrants are typical in life-science financing, though investors should watch the Beneficial Ownership Limitation: a future notice could allow the funds to lift ownership to 19.99%, increasing influence. The director lock-up mitigates immediate resale risk, but registration rights from Feb 2026 could accelerate secondary offerings. Impact on corporate control is therefore neutral at present, with modest dilution risk.






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).






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:06/30/2025
Baker Bros. Advisors (GP) LLC
Signature:/s/ Scott L. Lessing
Name/Title:Scott L. Lessing/ President
Date:06/30/2025
Julian C. Baker
Signature:/s/ Julian C. Baker
Name/Title:Julian C. Baker
Date:06/30/2025
Felix J. Baker
Signature:/s/ Felix J. Baker
Name/Title:Felix J. Baker
Date:06/30/2025

FAQ

How much of Kymera Therapeutics (KYMR) does Baker Bros. now own?

According to Amendment No. 2, the group beneficially owns 6,666,540 shares, or 9.5% of KYMR’s outstanding stock.

What price did Baker Bros. pay in the June 2025 Kymera offering?

They bought common shares at $44.00 each and prefunded warrants at $43.9999 per warrant.

When can Baker Bros. exercise its prefunded warrants in KYMR?

The warrants are exercisable at any time but capped at 4.99% ownership; the cap can be raised (max 19.99%) with 61 days’ notice.

Are Baker Bros. restricted from selling KYMR shares?

Felix Baker agreed to a lock-up until 24 Sep 2025; other shares can be traded at the funds’ discretion subject to market conditions.

What registration rights did Baker Bros. secure?

Starting 28 Feb 2026, the funds may demand shelf registration and up to three underwritten offerings over ten years for their KYMR holdings.
Kymera Therapeutics, Inc.

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4.88B
69.74M
2.53%
109.99%
11.42%
Biotechnology
Biological Products, (no Disgnostic Substances)
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United States
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