Notice: This company has been marked as potentially delisted and may not be actively trading. Capnia (CAPNU) Institutional Ownership Add Share Share Ownership Stock AnalysisOwnershipTrends Institutional Ownership Changes (13F Filings) for Capnia (NASDAQ:CAPNU)Number ofInstitutional Buyers(last 12 months)13TotalInstitutional Inflows(last 12 months)$31.15MNumber ofInstitutional Sellers(last 12 months)0 Get CAPNU Insider Trade Alerts Want to know when executives and insiders are buying or selling Capnia stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data CAPNU Institutional Buying and Selling by Quarter Remove Ads Capnia Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails12/3/2024 Rivernorth Capital Management LLC450,000$4.51M0.2%N/A0.000% 11/18/2024 Shaolin Capital Management LLC175,000$1.75M0.0%N/A0.000% 11/15/2024 Whitebox Advisors LLC125,000$1.25M0.0%N/A0.000% 11/15/2024 Weiss Asset Management LP150,000$1.50M0.0%N/A0.000% 11/15/2024 Rivernorth Capital Management LLC450,000$4.51M0.2%N/A0.000% 11/15/2024 Polar Asset Management Partners Inc.275,000$2.76M0.1%N/A0.000% 11/15/2024 Berkley W R Corp16,197$162K0.0%N/A0.000% 11/14/2024 Westchester Capital Management LLC150,000$1.50M0.1%N/A0.000% 11/13/2024 Crossingbridge Advisors LLC175,000$1.75M1.3%N/A0.000% 11/12/2024 ATW Spac Management LLC306,703$3.07M3.6%N/A0.000% 11/12/2024 Mizuho Securities USA LLC403,332$4.03M0.1%N/A0.000% 11/4/2024 Wolverine Asset Management LLC250,000$2.51M0.0%N/A0.000% 10/22/2024 Spartan Fund Management Inc.105,000$1.05M3.2%N/A0.000% 10/19/2024 Wealthspring Capital LLC80,900$811K1.0%N/A0.000% (Data available from 1/1/2016 forward)Remove Ads CAPNU Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of CAPNU shares? During the previous two years, 13 institutional investors and hedge funds held shares of Capnia. The most heavily invested institutionals were Rivernorth Capital Management LLC ($4.51M), Mizuho Securities USA LLC ($4.03M), ATW Spac Management LLC ($3.07M), Polar Asset Management Partners Inc. ($2.76M), Wolverine Asset Management LLC ($2.51M), Shaolin Capital Management LLC ($1.75M), and Crossingbridge Advisors LLC ($1.75M).Learn more on CAPNU's institutional investors. Which institutional investors have been buying Capnia stock? Of the 13 institutional investors that purchased Capnia stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Rivernorth Capital Management LLC ($900K), Mizuho Securities USA LLC ($403.33K), ATW Spac Management LLC ($306.70K), Polar Asset Management Partners Inc. ($275K), Wolverine Asset Management LLC ($250K), Crossingbridge Advisors LLC ($175K), and Shaolin Capital Management LLC ($175K). How much institutional buying is happening at Capnia? Institutional investors have bought a total of 3,112,132 shares in the last 24 months. This purchase volume represents approximately $31.15M in transactions. This page (NASDAQ:CAPNU) was last updated on 3/12/2025 by MarketBeat.com Staff From Our PartnersDOGE’s Next Move: Not what you thinkDonald Trump, Elon Musk and the Department of Government Efficiency have kept their word. Moving even faste...Weiss Ratings | SponsoredTrump Orders 'National Digital Asset Stockpile'Trump Orders ‘National Digital Asset Stockpile’ THIS could be the coin they choose…Crypto 101 Media | SponsoredAlert: DOGE goes liveElon will most likely be at the helm of it all. And just days from now, could bring about the biggest econo...Altimetry | SponsoredA brutally honest economic warning for 2025 (see proof)New York Times best-selling financial author and world-renowned economist Addison Wiggin (a man who’s worked s...Banyan Hill Publishing | SponsoredYour Wealth is Under AttackPlease don't wait—this is your moment to take action. Download your Wealth Protection Guide now, claim your fr...American Alternative | SponsoredElon’s “New Gold”MIT scientists just developed a brand-new metal… A metal that’s shaping up to be, not only the biggest brea...True Market Insiders | SponsoredUrgent Bitcoin alert for RIGHT NOWFormer billion-dollar hedge fund manager Larry Benedict has released the most incredible presentation of his 4...Brownstone Research | SponsoredTrump doesn’t give a damnPorter Stansberry: “I met with Trump’s biggest backers… they’re scooping up these 10 stocks” I recently met...Porter & Company | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Capnia Inc Please log in to your account or sign up in order to add this asset to your watchlist. Share Capnia With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
