stocktools

Congress Earnings Insiders Whales Gurus CEO$CEO Net Worth Smart Money Stocks Industries IPOs Short Squeeze Search Filings Market Map Compare Portfolios Crypto Bitcoin Cycles Lab Research Journal Guides Glossary Flashcards Options Max Pain Worth Knowing

Your dashboardDrag your own widgets and tools into place Check stock risksDilution, float, short interest and the paper trail, from EDGAR.Value a stockFiling-backed valuation and screens, with the formulas shown.Plan a tradeSize it, set the stop, and check levels and volume first.Analyze optionsPayoffs at expiry and open interest by strike, delayed and labelled.Track buying activityInsiders, Congress and funds, from the disclosures they must file.Find market eventsEarnings, offerings, IPOs, halts and macro releases.Plan investmentsDividends, compounding and retirement math, projections labelled.Review my tradesYour journal, P&L timeline and hold times. Local-first.All tools85 toolsSearch or filter every calculator and analyzer

Smart Money ▾

Flow overviewWhere the money is moving Congress tradesWhat lawmakers bought and sold Insider buysOfficer and director Form 4s Whales (13F)What institutions hold Guru portfoliosWhat the legends own CEO pay50 CEOsPay vs shareholder return CEO net worthFiling-anchored, cited

AI homeEvery engine, one cited verdict Trade PlannerConviction score to a sized paper plan Research BriefPlain-English read plus auto-SWOT Bull vs BearFour analysts debate the filings Watchlist ScannerRank a whole list by conviction

Earnings calendarWho reports, when — filing-confirmed Offering calendarEvery offering priced in the past month Offering CheckerAny ticker: last announced vs executed offering Do They Need Money?Cash runway — the motive for a raise Dilution ProfileThe whole picture: O/S, warrants, runway, offerings S-3 Shelf CheckerThe means: can they issue shares?

WorkspacesChartsUp to six linked daily charts, 27 studies ScansMulti-day movers, new highs and lows, gaps IPOsIndustriesComparePortfoliosShort SqueezeMarket MapSectors sized by cap, every tile dated SPY Holdings MapAbout 500 companies, sized by the fund’s filed weights Map by SizeFive market-cap bands, each its own map Insider Trading MapForm 4 purchases and sales, sized by dollars Max PainSearch FilingsFull text of every SEC filing since 2001

Prices & sentimentLive prices, market caps and Fear & Greed Bitcoin cyclesEvery 50%+ crash since 2011 Ethereum cyclesEvery 50%+ crash since 2017 BNB cyclesEvery 50%+ crash since 2017 XRP cyclesEvery 50%+ crash since 2017 Solana cyclesEvery 50%+ crash since 2020 CompareTwo coins, side by side Profit calcWhat a position would be worth DCA calcDollar-cost averaging, backtested

Lab homeExperiments and screeners Quant LibraryLatest arXiv q-fin papers, decoded

Worth Knowing177 cited factsThings worth knowing, each traced to a source Collections10 collectionsFounder stories, company origins, market milestones Learning pathsOrdered routes through the guides, ending at a tool GuidesHow filings and the market actually work Glossary395 termsEvery term, defined plainly FlashcardsDrill the terms until they stick OptionsOptions basics and payoff math JournalLog and grade your own trades

/stocks — the workspaceLOADING

Worth Knowing

Costco’s CEO Ron Vachris started in 1982 as a part-time forklift driver at Price Club, the warehouse chain Costco later merged with. He spent 40+ years working his way up to the top job.

Source: Costco proxy / company historyRead more →All facts

AI-powered research across filings, trades, earnings and more — in one intelligent workspace. Every claim cited to its source.

Research

Stock Workspaces AI Research Custom Research Report Compare Stocks Stock Screener

Who's buying

Congress Trades Insider Trading Whale 13Fs Executive Pay

Market

Earnings Calendar Why Is It Moving?Small-Cap Dashboard Trading Halts IPO Tracker

Learn

All Tools & Calculators Guides Glossary Worth Knowing

Data ageIngestion ledger →

© 2026 StockTools.aiA publisher, not an adviser: we analyze securities, never advise the person — no buy/sell/hold, no ticker ever paid to appear. AI can make mistakes; always check important info.

Pricing Contact Changelog Directory Methodology Feeds Data access Disclaimer Terms Privacy Delete account

PRLD · All filings · Read this filing

What changed 10-Q

Item 5. Other Information

2022-05-10 compared with 2021-11-12 · 3 added, 4 removed, 26 unchanged (21% of the section changed)

3 unchanged sentences

Filed/Furnished Herewith

+Added: Executive Employment Agreement, dated January 21, 2022, by and between the Registrant and Jane Huang

Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

14 unchanged sentences

Prelude Therapeutics Incorporated

−Removed: November 12, 2021

/s/ Krishna Vaddi

2 unchanged sentences

(Principal Executive Officer)

−Removed: November 12, 2021

−Removed: /s/ Brian Piper

−Removed: Brian Piper, M.B.A.

+Added: /s/ Laurent Chardonnet

+Added: Laurent Chardonnet

Chief Financial Officer

1 unchanged sentence

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.