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MAZE Insider Trading & Form 4 Activity

Maze Therapeutics, Inc.
Last filing: Oct 2, 2026·22 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$1.1M
16 sells
-$1.1M
net selling
4
insiders
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ACTIVE SELLING CLUSTER

4 insiders sold a combined $1.1M of MAZE between Sep 2, 2026 and Sep 3, 2026.

Bernstein Harold, Dandekar Atul, Courtney Phillips, Coloma Jason V

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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
Coloma Jason V
Chief Executive Officer
—
$3.4M
-$3.4M
Bernstein Harold
President, R&D & CMO
—
$1.8M
-$1.8M
Dandekar Atul
CSBO
—
$784K
-$784K
Courtney Phillips
GC and Corp. Secretary
—
$105K
-$105K

Recent transactions

Every Form 4 transaction for MAZE, newest first.

SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Oct 1·Filed Oct 2·EDGAR ↗
31,908 sh @ $27.02
$862K
EXERCISE10b5-1
Bernstein Harold · President, R&D & CMO
Tx Oct 1·Filed Oct 2·EDGAR ↗
16,141 sh @ $10.42
$168K
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Oct 1·Filed Oct 2·EDGAR ↗
16,141 sh @ $26.93
$435K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Oct 1·Filed Oct 2·EDGAR ↗
2,593 sh @ $27.02
$70K
EXERCISE10b5-1
Dandekar Atul · CSBO
Tx Sep 29·Filed Oct 1·EDGAR ↗
7,500 sh @ $10.42
$78K
SELL10b5-1
Dandekar Atul · CSBO
Tx Sep 29·Filed Oct 1·EDGAR ↗
7,500 sh @ $27.06
$203K
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Sep 4·Filed Sep 8·EDGAR ↗
9,705 sh @ $26.22
$255K
SELL
Dandekar Atul · CSBO
Tx Sep 3·Filed Sep 4·EDGAR ↗
36 sh @ $25.81
$929
SELL
Bernstein Harold · President, R&D & CMO
Tx Sep 3·Filed Sep 4·EDGAR ↗
5,130 sh @ $26.01
$133K
SELL
Bernstein Harold · President, R&D & CMO
Tx Sep 3·Filed Sep 4·EDGAR ↗
59 sh @ $25.78
$2K
SELL
Dandekar Atul · CSBO
Tx Sep 3·Filed Sep 4·EDGAR ↗
3,207 sh @ $26.01
$83K
SELL
Courtney Phillips · GC and Corp. Secretary
Tx Sep 3·Filed Sep 4·EDGAR ↗
1,990 sh @ $26.01
$52K
SELL
Courtney Phillips · GC and Corp. Secretary
Tx Sep 3·Filed Sep 4·EDGAR ↗
22 sh @ $25.78
$567
SELL
Coloma Jason V · Chief Executive Officer
Tx Sep 3·Filed Sep 4·EDGAR ↗
11,282 sh @ $26.01
$293K
SELL
Coloma Jason V · Chief Executive Officer
Tx Sep 3·Filed Sep 4·EDGAR ↗
129 sh @ $25.77
$3K
SELL
Bernstein Harold · President, R&D & CMO
Tx Sep 2·Filed Sep 4·EDGAR ↗
625 sh @ $27.12
$17K
SELL
Dandekar Atul · CSBO
Tx Sep 2·Filed Sep 4·EDGAR ↗
391 sh @ $27.12
$11K
SELL
Dandekar Atul · CSBO
Tx Sep 2·Filed Sep 4·EDGAR ↗
2,800 sh @ $26.38
$74K
SELL
Courtney Phillips · GC and Corp. Secretary
Tx Sep 2·Filed Sep 4·EDGAR ↗
243 sh @ $27.12
$7K
SELL
Courtney Phillips · GC and Corp. Secretary
Tx Sep 2·Filed Sep 4·EDGAR ↗
1,738 sh @ $26.38
$46K
SELL
Coloma Jason V · Chief Executive Officer
Tx Sep 2·Filed Sep 4·EDGAR ↗
1,375 sh @ $27.12
$37K
SELL
Coloma Jason V · Chief Executive Officer
Tx Sep 2·Filed Sep 4·EDGAR ↗
9,852 sh @ $26.38
$260K
SELL
Bernstein Harold · President, R&D & CMO
Tx Sep 2·Filed Sep 4·EDGAR ↗
4,481 sh @ $26.38
$118K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Sep 1·Filed Sep 3·EDGAR ↗
2,593 sh @ $26.31
$68K
EXERCISE10b5-1
Coloma Jason V · Chief Executive Officer
Tx Sep 1·Filed Sep 3·EDGAR ↗
50,000 sh
—
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Sep 1·Filed Sep 3·EDGAR ↗
31,908 sh @ $26.29
$839K
EXERCISE
Courtney Phillips · GC and Corp. Secretary
Tx Sep 1·Filed Sep 3·EDGAR ↗
11,000 sh
—
EXERCISE
Dandekar Atul · CSBO
Tx Sep 1·Filed Sep 3·EDGAR ↗
12,500 sh
—
EXERCISE10b5-1
Bernstein Harold · President, R&D & CMO
Tx Sep 1·Filed Sep 3·EDGAR ↗
20,000 sh
—
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Sep 1·Filed Sep 3·EDGAR ↗
16,141 sh @ $26.36
$426K
EXERCISE10b5-1
Bernstein Harold · President, R&D & CMO
Tx Sep 1·Filed Sep 3·EDGAR ↗
16,141 sh @ $10.42
$168K
EXERCISE10b5-1
Dandekar Atul · CSBO
Tx Aug 28·Filed Aug 31·EDGAR ↗
7,500 sh @ $10.42
$78K
SELL10b5-1
Dandekar Atul · CSBO
Tx Aug 28·Filed Aug 31·EDGAR ↗
7,500 sh @ $27.58
$207K
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Aug 13·Filed Aug 14·EDGAR ↗
16,142 sh @ $27.61
$446K
EXERCISE10b5-1
Bernstein Harold · President, R&D & CMO
Tx Aug 13·Filed Aug 14·EDGAR ↗
16,142 sh @ $10.42
$168K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Aug 3·Filed Aug 5·EDGAR ↗
2,439 sh @ $26.71
$65K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Aug 3·Filed Aug 5·EDGAR ↗
1,604 sh @ $27.09
$43K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Aug 3·Filed Aug 5·EDGAR ↗
30,304 sh @ $26.71
$810K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Aug 3·Filed Aug 5·EDGAR ↗
154 sh @ $27.09
$4K
EXERCISE10b5-1
Dandekar Atul · CSBO
Tx Jul 29·Filed Jul 31·EDGAR ↗
7,500 sh @ $10.42
$78K
SELL10b5-1
Dandekar Atul · CSBO
Tx Jul 29·Filed Jul 31·EDGAR ↗
7,100 sh @ $27.31
$194K
SELL10b5-1
Dandekar Atul · CSBO
Tx Jul 29·Filed Jul 31·EDGAR ↗
400 sh @ $27.89
$11K
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Jul 1·Filed Jul 2·EDGAR ↗
13,409 sh @ $29.86
$400K
EXERCISE10b5-1
Bernstein Harold · President, R&D & CMO
Tx Jul 1·Filed Jul 2·EDGAR ↗
14,609 sh @ $10.42
$152K
SELL10b5-1
Bernstein Harold · President, R&D & CMO
Tx Jul 1·Filed Jul 2·EDGAR ↗
1,200 sh @ $30.34
$36K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
2,593 sh @ $29.98
$78K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
30,311 sh @ $29.95
$908K
SELL10b5-1
Coloma Jason V · Chief Executive Officer
Tx Jul 1·Filed Jul 2·EDGAR ↗
1,597 sh @ $30.44
$49K
EXERCISE10b5-1
Dandekar Atul · CSBO
Tx Jun 29·Filed Jul 1·EDGAR ↗
7,500 sh @ $10.42
$78K
SELL10b5-1
Dandekar Atul · CSBO
Tx Jun 29·Filed Jul 1·EDGAR ↗
7,500 sh @ $28.02
$210K

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About MAZE 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 MAZE 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 MAZE 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 Maze Therapeutics, Inc. (MAZE) when they form.

Where does MAZE insider trading data come from?

Every Form 4 filing for MAZE 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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