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Tectonic Therapeutic Insider Trades

NASDAQ: TECXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD

23.33+0.58 (+2.55%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
3 · $235.16K
Sales
11 · $651.01K
Shares bought / sold
11.00K / 22.42K
Net activity
Net selling $415,847

Tectonic Therapeutic insider activity

Over the last 12 months, Tectonic Therapeutic insiders reported 37 transactions on SEC Form 4: 3 open-market purchases and 11 sales. Insiders bought $235,160 and sold $651,007 worth of stock, for net insider selling of $415,847. The largest seller was Ruddy Marcella K., with $363,000 in reported sales.

The most recent filing shows McNamara Peter (Chief Scientific Officer) selling 536 shares at $23.04 on Sep 30, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put TECX's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

TECX insider transactions

Tectonic Therapeutic insider transactions
DateInsiderTypeSharesValueFiling
Sep 30, 2026McNamara PeterChief Scientific OfficerSale536$12.35KForm 4
Sep 25, 2026Schwabish MarcChief Business OfficerTax withholding411$9.73KForm 4
Sep 25, 2026Lochner DanielChief Financial OfficerTax withholding520$12.31KForm 4
Sep 25, 2026REICIN ALISEChief Executive OfficerTax withholding1,545$36.57KForm 4
Sep 25, 2026Ruddy Marcella K.Chief Medical OfficerTax withholding525$12.43KForm 4
Sep 25, 2026McNamara PeterChief Scientific OfficerTax withholding444$10.51KForm 4
Aug 25, 2026McNamara PeterChief Scientific OfficerSale43$1.57KForm 4
Aug 25, 2026McNamara PeterChief Scientific OfficerOption exercise43$632.53Form 4
Aug 12, 2026McNamara PeterChief Scientific OfficerSale43$1.50KForm 4
Aug 12, 2026McNamara PeterChief Scientific OfficerOption exercise43$632.53Form 4
Jun 30, 2026McNamara PeterChief Scientific OfficerSale172$6.02KForm 4
Jun 30, 2026McNamara PeterChief Scientific OfficerOption exercise172$2.53KForm 4
Jun 20, 2026REICIN ALISEChief Executive OfficerTax withholding924$28.03KForm 4
May 4, 2026Ruddy Marcella K.Chief Medical OfficerSale1,065$31.95KForm 4
Apr 1, 2026Ruddy Marcella K.Chief Medical OfficerSale1,000$31.05KForm 4
Mar 6, 2026McNamara PeterChief Scientific OfficerSale215$7.53KForm 4
Mar 6, 2026McNamara PeterChief Scientific OfficerSale6,047$181.41KForm 4
Mar 6, 2026McNamara PeterChief Scientific OfficerOption exercise215$3.16KForm 4
Mar 6, 2026McNamara PeterChief Scientific OfficerOption exercise2,500$5.95KForm 4
Mar 6, 2026Ruddy Marcella K.Chief Medical OfficerSale10,000$300.00KForm 4
Mar 4, 2026Lochner DanielChief Financial OfficerAward26,500—Form 4
Mar 4, 2026McNamara PeterChief Scientific OfficerSale1,650$41.25KForm 4
Mar 4, 2026McNamara PeterChief Scientific OfficerAward23,000—Form 4
Mar 4, 2026Schwabish MarcChief Business OfficerAward19,500—Form 4
Mar 4, 2026Ruddy Marcella K.Chief Medical OfficerAward26,500—Form 4
Mar 4, 2026REICIN ALISEChief Executive OfficerAward76,500—Form 4
Mar 3, 2026McNamara PeterChief Scientific OfficerSale1,649$36.38KForm 4
Feb 11, 2026REICIN ALISEChief Executive OfficerBuy2,500$52.75KForm 4
Feb 11, 2026REICIN ALISEChief Executive OfficerBuy2,500$52.75KForm 4
Feb 10, 2026Lochner DanielChief Financial OfficerBuy6,000$129.66KForm 4
Feb 10, 2026Schwabish MarcChief Business OfficerOption exercise4,500$10.71KForm 4
Feb 4, 2026Lochner DanielChief Financial OfficerTax withholding2,077$48.23KForm 4
Feb 4, 2026McNamara PeterChief Scientific OfficerTax withholding1,748$40.59KForm 4
Feb 4, 2026REICIN ALISEChief Executive OfficerTax withholding4,104$95.29KForm 4
Feb 4, 2026Ruddy Marcella K.Chief Medical OfficerTax withholding2,064$47.93KForm 4
Feb 4, 2026Schwabish MarcChief Business OfficerTax withholding1,619$37.59KForm 4
Dec 31, 2025REICIN ALISEChief Executive OfficerOption exercise10,966$26.10KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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