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KYMR Insider Trading & Form 4 Activity

Kymera Therapeutics, Inc.
Last filing: Jul 7, 2026·18 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$173.7M
4 sells
-$173.7M
net selling
1
insider
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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Booth Bruce
Director
$195.6M
-$195.6M
Bvf Partners L P/il
Insider
$173.7M
-$173.7M
Mainolfi Nello
Chief Executive Officer
$15.2M
-$15.2M
Jacobs Bruce N.
Chief Financial Officer
$8.9M
-$8.9M
Chadwick Jeremy G
Chief Operating Officer
$1.4M
-$1.4M
Goodman Noah
Chief Business Officer
$907K
-$907K
Ridloff Elena
Director
$261K
-$261K
Esposito Pamela
Director
$0

Recent transactions

Every Form 4 transaction for KYMR, newest first.

SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 7·Filed Jul 7·EDGAR ↗
50,000 sh @ $119.00
$6.0M
EXERCISE10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 7·Filed Jul 7·EDGAR ↗
50,000 sh @ $2.08
$104K
EXERCISE10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
80,000 sh @ $2.08
$166K
SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
1,883 sh @ $112.80
$212K
SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
44,050 sh @ $115.69
$5.1M
SELL10b5-1
Goodman Noah · Chief Business Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
3,389 sh @ $114.29
$387K
SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
6,626 sh @ $113.98
$755K
SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
3,336 sh @ $116.56
$389K
SELL10b5-1
Mainolfi Nello · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
24,105 sh @ $114.96
$2.8M
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
3,200 sh @ $117.70
$377K
EXERCISE10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
61,378 sh @ $5.33
$327K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
1,500 sh @ $110.54
$166K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
6,153 sh @ $116.99
$720K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
1,700 sh @ $111.57
$190K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
51,375 sh @ $114.77
$5.9M
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
4,110 sh @ $114.19
$469K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
1,100 sh @ $112.79
$124K
SELL10b5-1
Jacobs Bruce N. · Chief Financial Officer
Tx Jun 30·Filed Jul 2·EDGAR ↗
7,971 sh @ $115.82
$923K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
1,498 sh @ $108.28
$162K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
2,698 sh @ $107.76
$291K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
1,078 sh @ $110.67
$119K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
130 sh @ $111.20
$14K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
7,723 sh @ $110.67
$855K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
1,104 sh @ $109.75
$121K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
10,848 sh @ $108.28
$1.2M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
934 sh @ $111.20
$104K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
770 sh @ $105.78
$81K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
14,798 sh @ $106.63
$1.6M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
5,549 sh @ $105.78
$587K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
19,419 sh @ $107.76
$2.1M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
2,133 sh @ $106.63
$227K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jul 2·EDGAR ↗
7,968 sh @ $109.75
$874K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
3,024 sh @ $107.76
$326K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
157 sh @ $111.20
$17K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
2,318 sh @ $106.63
$247K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
907 sh @ $111.20
$101K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
1,688 sh @ $108.28
$183K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
7,833 sh @ $109.75
$860K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
7,602 sh @ $110.67
$841K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
1,239 sh @ $109.75
$136K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
5,471 sh @ $105.78
$579K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
14,613 sh @ $106.63
$1.6M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
10,658 sh @ $108.28
$1.2M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
1,199 sh @ $110.67
$133K
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
19,093 sh @ $107.76
$2.1M
SELL10b5-1
Booth Bruce · Director
Tx Jun 29·Filed Jun 30·EDGAR ↗
848 sh @ $105.78
$90K
SELL10b5-1
Booth Bruce · Director
Tx Jun 26·Filed Jun 30·EDGAR ↗
1,442 sh @ $111.51
$161K
SELL10b5-1
Booth Bruce · Director
Tx Jun 26·Filed Jun 30·EDGAR ↗
78 sh @ $112.49
$9K
SELL10b5-1
Booth Bruce · Director
Tx Jun 26·Filed Jun 30·EDGAR ↗
2,083 sh @ $113.97
$237K
SELL10b5-1
Booth Bruce · Director
Tx Jun 26·Filed Jun 30·EDGAR ↗
3,958 sh @ $107.57
$426K

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About KYMR insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for KYMR from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying KYMR always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Kymera Therapeutics, Inc. (KYMR) when they form.

Where does KYMR insider trading data come from?

Every Form 4 filing for KYMR is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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