Insider buying in April 2026 has given investors a short list of growth stocks where people with the best information are voting with their own wallets. This guide profiles five US growth stocks with standout activity and shows how to turn Form 4 data into a watchlist.
What Insider Buying Actually Signals (and What It Doesn't)
Corporate insiders (officers, directors, and 10%-plus holders) must file Form 4 within two business days of any transaction in their stock. That filing is the raw material for every insider tracker.
According to the SEC investor bulletin on Forms 3, 4, and 5, transaction code P identifies an open-market purchase, the only code that unambiguously signals fresh conviction.
Code A grants, code M option exercises, and 10b5-1 scheduled sales do not carry the same weight. Insiders sell for many reasons; they generally buy for one.
Small-dollar buys can be cosmetic, blackout windows limit when insiders trade, and 10b5-1 plans pre-commit months ahead. Filter before acting.
The 5 Growth Stocks With Standout Insider Activity
1. UnitedHealth Group (UNH)
On April 1, 2026, ten board directors at UnitedHealth Group (UNH) bought shares on the same day, the cleanest cluster-buy signal in a US large cap this year.
According to 24/7 Wall St.'s UNH coverage, the buying came while the stock was down roughly 46% over 12 months, and the CFO plus the CEOs of Optum and UnitedHealthcare had already bought on March 17.
UNH is not a classic high-multiple growth name, but Q1 2026 beat and the board views the pullback as oversold. A 10-person cluster is as strong a signal as you get.
2. Palantir Technologies (PLTR)
Palantir (PLTR) co-founder Alexander Karp acquired roughly 1.47 million shares between January 22 and April 22, 2026, the largest insider buy in any US growth stock this window.
The purchases came alongside heavy selling from other insiders, which makes Karp's position-building stand out. Palantir's AIP platform and US government revenue remain the core growth story, and Karp is betting the AI-adoption ramp is still early.
3. Uber Technologies (UBER)
On February 24, 2026, newly promoted Uber (UBER) CFO Balaji Krishnamurthy bought 22,453 shares at roughly $71 for about $1.6 million, his first open-market purchase since taking the CFO seat on February 16.
A new CFO buying on day nine is meaningful, especially ahead of the autonomous-vehicle capex cycle that shapes Uber's next three years.
4. Reddit (RDDT)
Director Sarah E. Farrell, via Waygrove Partnership LP, bought roughly 50,500 shares of Reddit (RDDT) on February 10 and 11, 2026, at prices between $139 and $150.
The buy came after Reddit's post-IPO drawdown. At roughly $7 million, the size sits well above token levels, with advertising growth and Google data-partnership tailwinds intact.
5. Intel (INTC)
On January 26, 2026, Intel (INTC) CFO David Zinsner bought 5,882 shares at $42.50 for about $250,000, coded P.
Intel is the turnaround growth pick. The foundry business is still scaling, Lip-Bu Tan's reset is early, and the CFO buying in the low $40s is a visible commitment to the plan.
When a CFO adds after already holding 247,000 shares directly, he sees the cost basis as attractive against his own models.
Track all five in one place: open your Gotrade watchlist, add UNH, PLTR, UBER, RDDT, and INTC, and set alerts for the next earnings print.
Cluster Buying vs Single-Insider Trades
A cluster buy is two or more unique insiders buying within a seven-day window. Coordinated conviction is hard to fake, and the track record beats single trades.
OpenInsider data shows cluster-buy baskets outperform the S&P 500 over one- and three-year windows, with the edge concentrated in small and mid-caps. UNH is a rare large-cap example.
Single-insider trades need more filtering.
A $50,000 director buy in a $100 billion company is cosmetic; a $1 million-plus CFO buy after a drawdown is real. Size relative to prior holdings is the right lens.
Building a Watchlist From Form 4 Filings
Start with OpenInsider's Latest Cluster Buys and CEO/CFO Purchases $25k+ tables, both free. Finviz's insider screener adds a market-cap filter. Pull the last 30 days.
Filter for code P only. Drop grants, option exercises, and 10b5-1 trades. Require minimum $500,000 total or meaningful size versus the insider's prior holdings.
Cross-reference with price action: a cluster buy after a 30%-plus drawdown is the classic setup. Add a catalyst check, and review weekly, not daily.
Conclusion
Insider buying is not a stock-picking shortcut, but it is one of the few datasets where you see what informed people do with their own money. The five names above all show real open-market conviction in early 2026.
Form 4 data works best paired with your own thesis. Use the cluster signal to focus research, not replace it, and filter ruthlessly for code P, size, and timing.
Ready to act? Open Gotrade, add these tickers to your watchlist, and buy fractional shares from US$1 with zero commission. Our explainer on growth stocks and primer on building a stock watchlist pair well with this framework.
FAQ
What is a Form 4 filing?
A Form 4 is an SEC disclosure filed within two business days of any insider transaction in a company's stock, publicly visible on SEC EDGAR.
What does transaction code P mean?
Code P identifies an open-market or private purchase by an insider using their own money, the cleanest bullish signal on a Form 4.
Is insider buying always bullish?
No; small-dollar buys, blackout timing, and 10b5-1 plans all dilute the signal, so filter for size, code P, and recent drawdowns.
