Fastly (NYSE:FSLY) stock rocketed 11% higher Wednesday trading, pushing shares to $26.88. That move is part of a monster 280% run over the past 12 months. Impressively, the edge cloud platform has gone from a lesser-known contender to one of the more compelling tech stories.
Yet, there’s a wrinkle in Fastly’s comeback narrative that investors following this story should understand. Insiders have been selling shares persistently throughout the entire rally, and the data backing that up is hard to ignore.
A Genuine Fundamental Turnaround
The bull case for Fastly is not built on hype. The company reported Q4 2025 revenue of $172.61 million, beating the $161.37 million consensus estimate by 6.97% and growing 22.79% year over year. Furthermore, Fastly’s non-GAAP operating income flipped from a loss of $2.79 million in Q4 2024 to a gain of $21.23 million in Q4 2025. Evidently, the company’s business model starting to work.
Fastly CEO Kip Compton exuded confidence on the earnings call, asserting, “Our fourth quarter results mark an inflection in Fastly’s growth as we achieved record revenue, gross margin, and operating profit.” The gross margin story backs that up: Fastly’s GAAP gross margin expanded from 53.4% to 61.4% year over year, an 800 basis point improvement that signals genuine operating leverage, not accounting tricks.
The company’s fastest-growing segments are also the highest-value ones. Fastly’s security revenue grew 32% year over year to $35.4 million, now representing 20% of total revenue.
In addition, Fastly’s Compute and Observability segment grew 78% year over year to $6.4 million, still small but accelerating fast. The company’s remaining performance obligations hit a record $353.8 million, up 55% year over year, which means contracted future revenue is growing faster than current revenue. That’s forward visibility most small-cap tech companies would envy.
For the full year 2026, Fastly’s management guided for revenue of $700 million to $720 million and non-GAAP operating income of $50 million to $60 million. Compton has also flagged AI as an increasing tailwind, which is the kind of language that gets momentum investors interested regardless of whether the underlying thesis has fully materialized.
The Insider Selling That Should Give You Pause
Here’s where the story gets complicated. While the fundamentals have been improving quarter over quarter, insiders have been systematically selling Fastly shares into every leg of this rally. The volume and consistency of those sales are worth examining closely.
Fastly CTO Artur Bergman has been the most active seller, with dozens of transactions spanning from late December 2025 through early March 2026. His selling started at prices around $10.23 in late December and continued all the way up to $25 per share on March 11, 2026.
Meanwhile, Compton has also been selling. His transactions include Fastly stock sales at $20.30, $20.33, $21.01, $21.06, $21.22, $20.55, and $25 per share between early March and mid-March 2026.
Plus, Fastly CFO Richard Wong sold shares at $21.08 on March 6 and at $20.30 on March 3. President of Go-to-Market Scott Lovett sold 73,715 shares at $21.06 on March 4, with a Form 144 filing showing total proceeds across multiple dates.
It appears, then, that some of Fastly’s insiders are receiving shares and converting them to cash as fast as the compliance window allows. That’s a meaningful signal about how the people closest to the business view the current valuation.
What Wall Street Sees for Fastly
The consensus analyst target price for FSLY stock sits at $13.71, around half of where the shares are trading today. The analyst breakdown shows 3 buys, 6 holds, and 1 strong sell.
Fastly stock has already blown past what most covering analysts thought was fair value, which either means the Street is behind the curve or the market is pricing in a future that has not arrived yet. Notably, Fastly’s forward P/E of 81x leaves very little room for execution stumbles. For context on broader cloud exposure, see how a single ETF can capture the entire cloud boom.
Shares of Fastly are up 164% year to date, and the business genuinely is turning around. The profitability inflection is real, and the AI tailwind narrative gives the stock a reason to keep attracting buyers.
At the same time, Fastly’s insiders who know this company best have been selling every single step of the way, from $10 to $25 and beyond. This does not mean the rally is over, but it does suggest that the gap between Fastly’s insider behavior and FSLY stock’s price action is a data point worth weighing carefully.
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