Bruce Booth - 26 Jun 2026 Form 4/A - Amendment Insider Report for Kymera Therapeutics, Inc. (KYMR)

Reporting relationship: Director
Issuer ticker: KYMR
Reported as of: 26 Jun 2026
Net transaction value: -$8,281,905
SEC form: 4/A - Amendment
Accepted by SEC: 02 Jul 2026, 17:39:08 UTC
Original report date: 30 Jun 2026
Prior SEC filing: 25 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Ommer Chohan, Attorney-in-Fact

Key filing fact

Bruce Booth filed Form 4/A - Amendment for Kymera Therapeutics, Inc. (KYMR) on 02 Jul 2026.

Key facts

This page summarizes Bruce Booth's Form 4/A - Amendment filing for Kymera Therapeutics, Inc. (KYMR).
14 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 02 Jul 2026, 17:39.

Change

Previous filing in this sequence was filed on 25 Jun 2026.
Current net transaction value: -$8,281,905.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001451612 Primary reporting owner

Booth Bruce

Relationship: Director
Address: C/O KYMERA THERAPEUTICS, INC., 500 NORTH BEACON STREET, FLOOR 4, WATERTOWN
Signature: /s/ Ommer Chohan, Attorney-in-Fact
Signature date: 02 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KYMR transaction

Common Stock

Sale

Transaction value: $586,973
Shares: -5,549
Change %: -0.23%
Price: $105.78
Shares after: 2,446,375
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F3, F4

KYMR transaction

Common Stock

Sale

Transaction value: $1,577,911
Shares: -14,798
Change %: -0.6%
Price: $106.63
Shares after: 2,431,577
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F5

KYMR transaction

Common Stock

Sale

Transaction value: $2,092,591
Shares: -19,419
Change %: -0.8%
Price: $107.76
Shares after: 2,412,158
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F6

KYMR transaction

Common Stock

Sale

Transaction value: $1,174,621
Shares: -10,848
Change %: -0.45%
Price: $108.28
Shares after: 2,401,310
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F7

KYMR transaction

Common Stock

Sale

Transaction value: $874,488
Shares: -7,968
Change %: -0.33%
Price: $109.75
Shares after: 2,393,342
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F8

KYMR transaction

Common Stock

Sale

Transaction value: $854,704
Shares: -7,723
Change %: -0.32%
Price: $110.67
Shares after: 2,385,619
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F9

KYMR transaction

Common Stock

Sale

Transaction value: $103,861
Shares: -934
Change %: -0.04%
Price: $111.20
Shares after: 2,384,685
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F4, F10

KYMR transaction

Common Stock

Sale

Transaction value: $81,451
Shares: -770
Change %: -0.16%
Price: $105.78
Shares after: 471,497
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F3, F11

KYMR transaction

Common Stock

Sale

Transaction value: $227,442
Shares: -2,133
Change %: -0.45%
Price: $106.63
Shares after: 469,364
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F5, F11

KYMR transaction

Common Stock

Sale

Transaction value: $290,736
Shares: -2,698
Change %: -0.57%
Price: $107.76
Shares after: 466,666
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F6, F11

KYMR transaction

Common Stock

Sale

Transaction value: $162,203
Shares: -1,498
Change %: -0.32%
Price: $108.28
Shares after: 465,168
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F7, F11

KYMR transaction

Common Stock

Sale

Transaction value: $121,164
Shares: -1,104
Change %: -0.24%
Price: $109.75
Shares after: 464,064
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F8, F11

KYMR transaction

Common Stock

Sale

Transaction value: $119,302
Shares: -1,078
Change %: -0.23%
Price: $110.67
Shares after: 462,986
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F9, F11

KYMR transaction

Common Stock

Sale

Transaction value: $14,456
Shares: -130
Change %: -0.03%
Price: $111.20
Shares after: 462,856
Date: 29 Jun 2026
Ownership: See footnote
Footnotes: F1, F2, F10, F11

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 11 footnotes

Footnote F1

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Atlas Venture Fund X, L.P. and Atlas Venture Opportunity Fund I, L.P. on December 11, 2025.

Footnote F2

The number of shares disposed and the number of shares owned following reported transaction were inadvertently misreported on the original Form 4. This represents to correct number.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $105.015 to $106.0145 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold each separate price within the ranges set forth in footnotes (3) and (5) through (10).

Footnote F4

These shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. The Reporting Person is a member of AVA X LLC and disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of his pecuniary interest therein, if any.

Footnote F5

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $106.0271 to $106.96 inclusive.

Footnote F6

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $107.03 to $108.0293 inclusive.

Footnote F7

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $108.0326 to $109.019 inclusive.

Footnote F8

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.034 to $109.96 inclusive.

Footnote F9

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.09 to $111.08 inclusive.

Footnote F10

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.09 to $111.63 inclusive.

Footnote F11

The shares are owned directly by Atlas Venture Opportunity Fund I, L.P. ("AVOF"). Atlas Venture Associates Opportunity I, L.P. ("AVAO LP") is the general partner of AVOF. Atlas Venture Associates Opportunity I, LLC ("AVAO LLC") is the general partner of AVAO LP. The Reporting Person is a member of AVAO LLC and disclaims Section 16 beneficial ownership of such securities held by AVOF, except to the extent of his pecuniary interest therein, if any.

SEC remarks

This Amendment is being filed to address an inadvertent clerical error in the original Form 4 relating to the allocation of the reported sales between Atlas Venture Fund X and AVOF. The aggregate number of shares sold by Atlas Venture Fund X and AVOF, as reported in the original Form 4, remains unchanged.