The key moments, with employee sentiment along the way.
2006
🌱
2006
Founded to work the sell side
Brothers Rajeev and Amar Goel build ad tech for publishers: automated auctions that squeeze more money from their ad space.
Wikipedia
Dec 2020
🦄
Dec 2020
A modest IPO, then the club
Prices its December 2020 Nasdaq debut around a $957M market cap; the ad-tech rally carries it past $1B.
IPOScoop
Mar 2021
📈
Mar 2021
The peak: $69.92 a share$3.5B
The all-time high values PubMatic near $3.5B.
Macrotrends
2022
2022
The ad market turns
Digital-ad spending weakens and pricing pressure from giants like Google grinds the stock down — even as PubMatic, unusually for this list, stays profitable.
Macrotrends
2022
💔
2022
Slips out of the club
The slide eventually reaches ~89%, to a market cap around $400M.
Macrotrends
2023–25
💬
From the inside · Glassdoor reviews, 2023–25
Glassdoor reviews marked the mood shift: staff who once bragged that PubMatic avoided layoffs began describing repeated small rounds of cuts after growth stumbled in late 2023, and years of flat, cost-of-living-style raises that they said pushed engineers out the door.
💬 entries paraphrase anonymous, unverified reviews posted publicly on Glassdoor ↗; dated facts carry their source.
How it happened
PubMatic runs a programmatic-advertising sell-side platform that helps publishers sell digital ad inventory through automated auctions. It went public in December 2020 and its stock soared to an all-time high near $70 in March 2021, lifting its market value to roughly $3.5B.
A weak digital-ad market, ad-tech consolidation and pricing pressure from giants like Google then ground the stock down about 89%, to around $0.4B, though the company stayed profitable.
Source: stockanalysis / Macrotrends / IPOScoop (Dec 2020 IPO ~$957M, ATH $69.92 March 2021 implying ~$3.5B; ~$394M market cap by 2026, -89%)
