WallStreetZenWallStreetZen

NASDAQ: APTO
Aptose Biosciences Inc Stock Ownership - Who owns Aptose Biosciences?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Aptose Biosciences Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
William G. RiceChair President CEO2024-11-25100,000$0.20
$20.00kBuy

1 of 1

APTO insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when APTO insiders and whales buy or sell their stock.

APTO Shareholders

What type of owners hold Aptose Biosciences Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Donald R. Wilson Jr.1,367.03%8,895,238$31.67MInsider
Bleichroeder LP384.20%2,500,000$8.90MInstitution
Sigma Planning Corp108.10%703,384$2.50MInstitution
William G. Rice94.24%613,252$2.18MInsider
Drw Securities LLC91.11%592,829$2.11MInstitution
Hanmi Pharmaceutical Co Ltd78.18%508,710$1.81MInsider
Erich Platzer77.61%505,000$1.80MInsider
Gregory K. Chow35.78%232,846$828.93kInsider
Fletcher Payne18.44%120,000$427.20kInsider
Jotin Marango17.86%116,219$413.74kInsider

1 of 3

APTO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
APTO26.14%73.86%Net Buying
PLRZ1.99%0.00%
ATNF4.79%95.21%
THAR3.64%96.36%Net Buying
PBM7.76%92.24%
View Top Biotech Stocks

Aptose Biosciences Stock Ownership FAQ

Who owns Aptose Biosciences?

Aptose Biosciences (NASDAQ: APTO) is owned by 612.60% institutional shareholders, 1,730.74% Aptose Biosciences insiders, and 0.00% retail investors. Donald R. Wilson Jr. is the largest individual Aptose Biosciences shareholder, owning 8.90M shares representing 1,367.03% of the company. Donald R. Wilson Jr.'s Aptose Biosciences shares are currently valued at $30.96M.

If you're new to stock investing, here's how to buy Aptose Biosciences stock.
©2025 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.