Shareholder plans sale of 34K shares, $3.1M

KYMR reported officer/affiliate sales disclosed on Form 144.

Rhea-AI Filing Summary

KYMR reported officer/affiliate sales disclosed on Form 144. The excerpt lists multiple sales by Atlas Venture Fund X, L.P., Atlas Venture Opportunity Fund I, L.P. and Bruce Booth between 04/14/2026 and 06/18/2026, showing individual transactions with share counts and cash amounts.

The filings identify the security as Common Stock and note prior private placement issuance on 03/11/2020. The excerpt provides per-transaction share counts (for example, 100,928 shares on 06/18/2026) and corresponding cash amounts, but does not state aggregate proceeds to the issuer.

Insights

Corporate Filings Analyst

Multiple affiliated holders reported open-market or block disposals over April–June 2026.

The excerpt lists discrete sales by Atlas Venture Fund X, L.P., Atlas Venture Opportunity Fund I, L.P. and an individual, Bruce Booth, with dates, share counts, and dollar values. Each line shows the security as Common and indicates cash consideration for the transactions.

These are routine sale disclosures on Form 144; cash‑flow recipients are the selling holders. Timing and aggregated totals across holders are not provided in the excerpt; subsequent filings may show aggregate schedules.

Key Figures

Sale by Atlas Venture Fund X on 06/18/2026: 100,928 shares Sale by Atlas Venture Fund X on 06/17/2026: 92,169 shares Proceeds reported for 06/18/2026 Atlas sale: $9,185,730.49 +3 more

6 metrics

Sale by Atlas Venture Fund X on 06/18/2026 100,928 shares 06/18/2026 transaction listed in excerpt

Sale by Atlas Venture Fund X on 06/17/2026 92,169 shares 06/17/2026 transaction listed in excerpt

Proceeds reported for 06/18/2026 Atlas sale $9,185,730.49 Cash amount next to 100,928-share line on 06/18/2026

Bruce Booth sale on 06/17/2026 11,741 shares 06/17/2026 transaction listed for Bruce Booth

Private Placement date 03/11/2020 Issuer private placement date noted in excerpt

Example Atlas sale on 04/15/2026 2,750 shares 04/15/2026 transaction listed for Atlas Venture Fund X

Key Terms

Form 144, Private Placement, Issuer

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Private Placement financial

"Common Stock | 03/11/2020 | Private Placement"

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

Issuer regulatory

"Common Stock | 03/11/2020 | Private Placement | Issuer"

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

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Accepted by SEC EDGAR 06/22/2026 - 05:28 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001759241
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	KYMERA THERAPEUTICS, INC.
SEC File Number	001-39460
Address of Issuer	500 North Beacon Street 4th Floor Watertown MASSACHUSETTS 02472
Phone	8572855300
Name of Person for Whose Account the Securities are To Be Sold	Atlas Venture Opportunity Fund I, LP
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Shareholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Merrill Lynch 555 California Street 18th Floor San Francisco CA 94104	34152	3088365.36	82257588	06/22/2026	Nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	03/11/2020	Private Placement	Issuer			34152	03/11/2020	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Atlas Venture Fund X, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/15/2026	2750	247765.57
Atlas Venture Fund X, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/22/2026	88	7926.6
Atlas Venture Fund X, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	06/17/2026	92169	8330667.41
Atlas Venture Fund X, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	06/18/2026	100928	9185730.49
Atlas Venture Opportunity Fund I, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/15/2026	385	34687.18
Atlas Venture Opportunity Fund I, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/22/2026	12	1080.9
Atlas Venture Opportunity Fund I, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	06/17/2026	12902	1166143.4
Atlas Venture Opportunity Fund I, L.P. 300 Technology Sq Ste 8 Cambridge MA 02139	Common	06/18/2026	14128	1285827.52
Bruce Booth 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/14/2026	4159	374199.56
Bruce Booth 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/15/2026	2200	197895.00
Bruce Booth 300 Technology Sq Ste 8 Cambridge MA 02139	Common	04/22/2026	5900	530746.25
Bruce Booth 300 Technology Sq Ste 8 Cambridge MA 02139	Common	06/17/2026	11741	1056443.24

144: Remarks and Signature

Remarks
Date of Notice	06/22/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/11/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Ommer Chohan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)