ASX 200 stock Netwealth Group Ltd (ASX: NWL) has been making waves recently, not just in its stock price but also in the boardroom.

Directors Michael Heine and Matthew Heine have collectively sold millions of dollars worth of shares in this financial services heavyweight. Let's see what it means for the ASX 200 stock moving forward.

ASX 200 stock director sales?

In a series of transactions disclosed via mandatory filings, both directors offloaded a large line of shares in the ASX 200 stock.

Both were made via on-market trades.

Mathew Heine sold more than 1.1 million shares on November 21, valued at approximately $32 million.

This followed earlier sales in October, where he disposed of over 1.65 million shares across three transactions, raising an additional $45 million.

Despite these sales, Matthew retains indirect exposure to a staggering 100 million shares held by his investment vehicle.

Matthew's father, Michael Heine, also sold over 1.1 million shares on the same day in November.

The disposal matched Matthew's consideration of approximately $32 million. He, too, sold about $30 million of Netwealth stock in October (like father like son?)

Collectively, these latest transactions amount to around $65 million in sales of the ASX 200 stock, bringing total sales to about $140 million since October.

Why are the directors selling?

Directors opt to sell stock for many reasons, ranging from discretionary sales to wealth planning to mandatory sales via performance rights.

One point is the ASX 200 stock has surged over 96% this year. Another is that Matthew recently bought a Melbourne mansion for $22 million in October. But there's no saying exactly why.

Director sales can even cause short-term jitters among investors, but they don't always indicate a lack of faith in the company.

It's also worth noting that both Michael and Matthew Heine retain substantial holdings in the company Michael founded in 1999.

As to the stock itself, it is currently rated a hold by consensus, according to CommSec.

The split is three buys, ten holds and four sell recommendations. Following its run in 2024, the stock now trades at more than 87 times trailing earnings.

Whether or not the ASX All Ords stock will advance from here depends on a myriad of factors, not least of which is the underlying business' performance.

ASX 200 stock takeout

Directors have sold a large amount of Netwealth stock this month. The stock has nearly doubled in value this year, outpacing all major benchmarks.

The reasons behind both sets of insider sales remain unclear. In the last 12 months, the stock is up 107%.