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Maze Therapeutics, Inc. planned insider sales

In the last twelve months insiders at Maze Therapeutics, Inc. filed 23 Form 144 notices of planned sales, 741,288 shares worth $25.7 million at the time of filing, from 10 sellers. The latest, filed 1 October 2026: Harold Bernstein (officer), 16,141 shares worth $438,712, planned for around 1 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
1 October 2026Harold BernsteinOfficer16,141$438,7121 October 202616,141 shares from 1 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
1 October 2026Coloma Jason VOfficer34,501$933,2521 October 202634,501 shares from 1 October 2026UBS Financial Services Inc.GiftForm 144
4 September 2026Harold BernsteinOfficer9,705$251,0684 September 202614,894 shares from 3 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock UnitsForm 144
2 September 2026Courtney PhillipsOfficer4,144$110,0002 September 20263,993 shares from 2 September 2026Morgan Stanley Smith Barney LLCRestricted Stock Unit VestingForm 144
2 September 2026Atul DandekarOfficer6,679$177,2002 September 202613,934 shares from 2 September 2026Morgan Stanley Smith Barney LLCRestricted Stock Unit VestingForm 144
2 September 2026Harold BernsteinOfficer10,685$283,5002 September 202621,247 shares from 1 September 2026Morgan Stanley Smith Barney LLCRestricted Stock Unit VestingForm 144
2 September 2026Jason V ColomaOfficer23,497$623,4002 September 202657,139 shares from 1 September 2026Morgan Stanley Smith Barney LLCRestricted Stock Unit VestingForm 144
1 September 2026Coloma Jason VOfficer34,501$908,0661 September 2026None on Form 4 yetUBS Financial Services Inc.GiftForm 144
3 August 2026Coloma Jason VOfficer34,501$922,5573 August 202634,501 shares from 3 August 2026UBS Financial Services Inc.GiftForm 144
29 July 2026Atul DandekarOfficer22,500$627,30029 July 202615,000 shares from 29 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
1 July 2026Coloma Jason VOfficer34,501$1.0 million1 July 202634,501 shares from 1 July 2026UBS Financial Services Inc.GiftForm 144
1 July 2026Harold BernsteinOfficer46,892$1.4 million1 July 202630,751 shares from 1 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
1 June 2026Coloma Jason VOfficer34,501$908,0661 June 202634,501 shares from 1 June 2026UBS Financial Services Inc.GiftForm 144
15 May 2026Coloma Jason VOfficer34,502$895,32715 May 202634,502 shares from 15 May 2026UBS Financial Services Inc.GiftForm 144
30 March 2026Atul DandekarOfficer30,000$911,40030 March 202622,500 shares from 30 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
10 March 2026Harold BernsteinOfficer74,853$3.4 million10 March 202689,853 shares from 10 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
16 January 2026Sekar KathiresanFormer Director29,772$1.2 million16 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
7 January 2026Catherine SohnDirector26,920$1.1 million7 January 202629,413 shares from 6 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
6 January 2026Catherine SohnDirector2,493$96,2706 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesStock Option ExerciseForm 144
29 December 2025Atul P DandekarOfficer87,500$3.7 million29 December 202587,500 shares from 29 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
29 December 2025Harold BernsteinOfficer105,000$4.4 million29 December 202590,000 shares from 29 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesExercise of Stock OptionsForm 144
4 December 2025Sekar KathiresanFormer Board Member10,000$425,4234 December 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesFounder StockForm 144
21 November 2025Sekar KathiresanFormer Board Member27,500$984,58821 November 2025No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesFounder StockForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?