| # | Holder | Shares | % of Shares Out | Change | Filing Date |
|---|---|---|---|---|---|
| 1 |
Third Rock Ventures, LLC
|
5.425m | 9.77% | — | Jun 30 2026 |
| 2 |
Frazier Life Sciences Management, L.P.
|
5.033m | 9.07% | +465.641k | Jun 30 2026 |
| 3 |
ARCH Venture Partners
|
4.120m | 7.42% | — | Jun 30 2026 |
| 4 |
Deep Track Capital LP
|
3.733m | 6.73% | +255.007k | Jun 30 2026 |
| 5 |
Janus Henderson Investors
|
3.408m | 6.14% | +549.169k | Jun 30 2026 |
|
1
Third Rock Ventures, LLC
|
9.77%
5.425m
|
|
2
Frazier Life Sciences Management, L.P.
|
9.07%
5.033m
|
|
3
ARCH Venture Partners
|
7.42%
4.120m
|
|
4
Deep Track Capital LP
|
6.73%
3.733m
|
|
5
Janus Henderson Investors
|
6.14%
3.408m
|
| The largest shareholders show who really holds influence: big institutional owners shape a stock's liquidity, and building or cutting positions can move the price. | |
| The 5 largest shareholders together hold 39.13% of Maze Therapeutics Inc, with Third Rock Ventures, LLC the biggest at 9.77%, followed by Frazier Life Sciences Management, L.P. (9.07%) and ARCH Venture Partners (7.42%). |
| Date | Insider & Role | Type | Price | Quantity | Volume |
|---|---|---|---|---|---|
| Oct 05 2026 |
John Mitchell
CEO
|
Purchases
|
$182.45 | + 15,000 | $2,736,750 |
| Oct 02 2026 |
Sarah Chen
CFO
|
Sales
|
$179.80 | - 8,500 | $1,528,300 |
| Sep 28 2026 |
Robert Williams
COO
|
Purchases
|
$175.20 | + 12,000 | $2,102,400 |
| Sep 23 2026 |
Emily Rodriguez
Director
|
Sales
|
$181.30 | - 5,200 | $942,760 |
| Sep 17 2026 |
Michael Thompson
SVP Operations
|
Purchases
|
$170.50 | + 20,000 | $3,410,000 |
| Sep 10 2026 |
Lisa Park
General Counsel
|
Sales
|
$177.90 | - 6,800 | $1,209,720 |
| No transactions found for this filter. | |||||
|
John Mitchell
PURCHASES
|
Oct 05 2026
$182.45
|
|
Sarah Chen
SALES
|
Oct 02 2026
$179.80
|
|
Robert Williams
PURCHASES
|
Sep 28 2026
$175.20
|
|
Emily Rodriguez
SALES
|
Sep 23 2026
$181.30
|
|
Michael Thompson
PURCHASES
|
Sep 17 2026
$170.50
|
|
Lisa Park
SALES
|
Sep 10 2026
$177.90
|
| No transactions found for this filter. | |
| Insider transactions show you what executives, directors and major shareholders do with their own stock: people who know the company from the inside. Buys are the most telling signal, because insiders invest their own money. Sells are harder to read, since they can also be driven by taxes, diversification or expiring option programs. |
StocksGuide is the ultimate tool for easily finding, analyzing and tracking stocks. Learn from successful investors and make informed investment decisions. We empower you to become a confident, independent investor.


