Aptose Biosciences Ownership 2024 | Who Owns Aptose Biosciences Now?


OverviewRevenueFinancialsChartTranscripts

Institutional Ownership

0.00%

Insider Ownership

17.12%

Retail Ownership

82.88%

Institutional Holders

1.00

Aptose Biosciences Institutional Shareholders


Institutional Shareholders by % of Total Shares

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ANNANDALE CAPITAL, LLC0.39%0.01%26,666-48,000-64.29%44,000Mar 31, 2024
CALDWELL SUTTER CAPITAL, INC.0.00%0.00%92--153Mar 31, 2024

Aptose Biosciences's largest institutional shareholder is ANNANDALE CAPITAL, LLC, holding 0.39% of the company's total share outstanding, currently valued at $44.00K. The top 10 institutional shareholders own together 0.40% of the company.

Institutional Shareholders by % of Total Assets

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ANNANDALE CAPITAL, LLC0.39%0.01%26,666-48,000-64.29%44,000Mar 31, 2024
CALDWELL SUTTER CAPITAL, INC.0.00%0.00%92--153Mar 31, 2024

The largest Aptose Biosciences shareholder by % of total assets is ANNANDALE CAPITAL, LLC. The company owns 26.67K shares of Aptose Biosciences (APTO), representing 0.01% of its total assets.

Institutional Buyers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
CALDWELL SUTTER CAPITAL, INC.0.00%0.00%92--153Mar 31, 2024
ANNANDALE CAPITAL, LLC0.39%0.01%26,666-48,000-64.29%44,000Mar 31, 2024

As of Mar 31 2024, Aptose Biosciences's largest institutional buyer is CALDWELL SUTTER CAPITAL, INC.. The company purchased 0.00 stocks of APTO, valued at $153.00.

Institutional Sellers

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate
ANNANDALE CAPITAL, LLC0.39%0.01%26,666-48,000-64.29%44,000Mar 31, 2024
CALDWELL SUTTER CAPITAL, INC.0.00%0.00%92--153Mar 31, 2024

As of Mar 31 2024, Aptose Biosciences's biggest institutional seller is ANNANDALE CAPITAL, LLC. The company sold -48.00K shares of APTO, valued at $44.00K.

Institutional New positions

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate

Institutional Sold Out

Name% Total Shares% Total AssetsCurrent SharesChange AmountChange %Market ValueDate

Aptose Biosciences Mutual Fund Holders


Name% Total AssetsTotal SharesChange AmountChange %Date
DRIEHAUS MUTUAL FUNDS0.02%157,219--Dec 29, 2023
RBB FUND, INC.0.00%93,697--Feb 29, 2024
MUTUAL FUND SERIES TRUST0.00%2,299,000--Dec 31, 2023
FIDELITY CONCORD STREET TRUST0.00%32,455--Feb 29, 2024
DFA INVESTMENT TRUST CO0.00%767--Jan 31, 2024
DFA INVESTMENT TRUST CO0.00%766--Jan 31, 2024

Aptose Biosciences's largest mutual fund holder by % of total assets is "DRIEHAUS MUTUAL FUNDS", owning 157.22K shares, compromising 0.02% of its total assets.

Aptose Biosciences Institutional Ownership Trends


Institutional Holdings Trend

DateHoldingsChange %
31 Mar, 241-50.00%
31 Dec, 232-
30 Sep, 232-
30 Jun, 232-95.65%
31 Mar, 2346-8.00%
31 Dec, 22502.04%
30 Sep, 2249-
30 Jun, 2249-10.91%
31 Mar, 2255-6.78%
31 Dec, 2159-11.94%
30 Sep, 2167-1.47%
30 Jun, 2168-11.69%
31 Mar, 217711.59%
31 Dec, 20691.47%
30 Sep, 206815.25%
30 Jun, 20597.27%
31 Mar, 2055-3.51%
31 Dec, 195796.55%
30 Sep, 19293.57%
30 Jun, 192833.33%
31 Mar, 192116.67%
31 Dec, 181820.00%
30 Sep, 1815-21.05%
30 Jun, 181918.75%
31 Mar, 181614.29%
31 Dec, 171427.27%
30 Sep, 171122.22%
30 Jun, 179-18.18%
31 Mar, 1711-8.33%
31 Dec, 161220.00%
30 Sep, 1610-
30 Jun, 1610-16.67%
31 Mar, 16129.09%
31 Dec, 1511-8.33%
30 Sep, 1512-25.00%
30 Jun, 151623.08%
31 Mar, 151385.71%
31 Dec, 147-

As of 31 Mar 24, 1 institutions are holding Aptose Biosciences's shares, representing a decrease of -50.00% compared to the previous quarter.

Shares Outstanding Trend

DateShares OutstandingChange %
31 Mar, 2492-99.88%
31 Dec, 2374,758-
30 Sep, 2374,75839.93%
30 Jun, 2353,424-99.75%
31 Mar, 2321,228,131-8.64%
31 Dec, 2223,236,335-5.78%
30 Sep, 2224,662,522-2.02%
30 Jun, 2225,169,814-12.09%
31 Mar, 2228,631,055-8.25%
31 Dec, 2131,205,099-21.02%
30 Sep, 2139,510,111-16.19%
30 Jun, 2147,139,717-9.98%
31 Mar, 2152,368,0857.61%
31 Dec, 2048,664,1625.02%
30 Sep, 2046,338,28329.35%
30 Jun, 2035,824,4402.28%
31 Mar, 2035,025,89814.52%
31 Dec, 1930,583,878117.30%
30 Sep, 1914,074,77918.54%
30 Jun, 1911,873,847261.62%
31 Mar, 193,283,4836.78%
31 Dec, 183,074,956154.35%
30 Sep, 181,208,97053.11%
30 Jun, 18789,58765.00%
31 Mar, 18478,53033.02%
31 Dec, 17359,75268.70%
30 Sep, 17213,254-80.37%
30 Jun, 171,086,453-55.26%
31 Mar, 172,428,382-9.73%
31 Dec, 162,690,112-7.24%
30 Sep, 162,899,92215.80%
30 Jun, 162,504,257-4.72%
31 Mar, 162,628,228-0.20%
31 Dec, 152,633,617-4.28%
30 Sep, 152,751,269-12.18%
30 Jun, 153,132,7317.21%
31 Mar, 152,921,982-7.49%
31 Dec, 143,158,683-

Aptose Biosciences (APTO) has 92.00 shares outstanding as of 31 Mar 24, down -99.88% compared to the previous quarter.

Institutional Ownership Trend

DateOwnership %Change %
31 Mar, 240.00%0.10%
31 Dec, 231.15%0.36%
30 Sep, 2317.99%540135.36%
30 Jun, 230.06%0.01%
31 Mar, 2322.93%3.62%
31 Dec, 2225.18%3.53%
30 Sep, 2226.72%3.59%
30 Jun, 2227.29%2.83%
31 Mar, 2231.04%2.53%
31 Dec, 2135.03%1.78%
30 Sep, 2144.42%1.58%
30 Jun, 2153.00%1.53%
31 Mar, 2158.92%1.67%
31 Dec, 2059.46%2.04%
30 Sep, 2053.97%2.45%
30 Jun, 2046.97%2.22%
31 Mar, 2045.95%1.24%
31 Dec, 1960.97%9.46%
30 Sep, 1925.38%3.89%
30 Jun, 1925.55%37.63%
31 Mar, 198.24%9.72%
31 Dec, 189.21%75.37%
30 Sep, 183.50%64.62%
30 Jun, 182.33%85.66%
31 Mar, 181.65%63.39%
31 Dec, 171.61%205.25%
30 Sep, 170.89%3.51%
30 Jun, 175.03%2.59%
31 Mar, 1713.94%3.13%
31 Dec, 1621.11%4.17%
30 Sep, 1622.51%5.37%
30 Jun, 1620.47%4.30%
31 Mar, 1621.81%4.46%
31 Dec, 1522.12%4.14%
30 Sep, 1523.10%3.34%
30 Jun, 1526.31%4.29%
31 Mar, 1524.78%3.36%
31 Dec, 1427.16%-

As of 31 Mar 24, Aptose Biosciences is held by 0.00% institutional shareholders, representing a 0.10% growth compared to 31 Dec 23.

Institutional Increased Positions Trend

DateIncreased PositionsChange %
31 Mar, 24--
31 Dec, 23--100.00%
30 Sep, 231-
30 Jun, 231-88.89%
31 Mar, 239-60.87%
31 Dec, 222335.29%
30 Sep, 221741.67%
30 Jun, 2212-36.84%
31 Mar, 2219-42.42%
31 Dec, 21333.13%
30 Sep, 213218.52%
30 Jun, 2127-34.15%
31 Mar, 214110.81%
31 Dec, 2037-19.57%
30 Sep, 204643.75%
30 Jun, 2032-3.03%
31 Mar, 2033-29.79%
31 Dec, 1947123.81%
30 Sep, 1921-
30 Jun, 192161.54%
31 Mar, 191362.50%
31 Dec, 188-
30 Sep, 188-27.27%
30 Jun, 181122.22%
31 Mar, 18912.50%
31 Dec, 17833.33%
30 Sep, 176100.00%
30 Jun, 173-50.00%
31 Mar, 17620.00%
31 Dec, 165-16.67%
30 Sep, 166100.00%
30 Jun, 163-25.00%
31 Mar, 164-20.00%
31 Dec, 155400.00%
30 Sep, 151-87.50%
30 Jun, 158-11.11%
31 Mar, 15928.57%
31 Dec, 147-

- institutional shareholders have increased their position in APTO stock as of 31 Mar 24 compared to - in the previous quarter (a 0.00% increase).

Institutional Reduced Positions Trend

DateReduced PositionsChange %
31 Mar, 24--
31 Dec, 23--
30 Sep, 23--100.00%
30 Jun, 231-92.86%
31 Mar, 231440.00%
31 Dec, 2210-9.09%
30 Sep, 2211-21.43%
30 Jun, 2214-6.67%
31 Mar, 221515.38%
31 Dec, 2113-38.10%
30 Sep, 212123.53%
30 Jun, 2117-10.53%
31 Mar, 211911.76%
31 Dec, 201770.00%
30 Sep, 2010-33.33%
30 Jun, 201515.38%
31 Mar, 201385.71%
31 Dec, 19775.00%
30 Sep, 19433.33%
30 Jun, 193-
31 Mar, 193-25.00%
31 Dec, 18433.33%
30 Sep, 183-25.00%
30 Jun, 184-
31 Mar, 18433.33%
31 Dec, 173-25.00%
30 Sep, 174-
30 Jun, 174100.00%
31 Mar, 172-66.67%
31 Dec, 166500.00%
30 Sep, 161-66.67%
30 Jun, 163-
31 Mar, 16350.00%
31 Dec, 152-71.43%
30 Sep, 157133.33%
30 Jun, 15350.00%
31 Mar, 152-
31 Dec, 14--

- institutional shareholders have reduced their position in APTO stock as of 31 Mar 24 compared to - in the previous quarter (a 0.00% increase).

All Institutional Ownership Trend Data

DateHoldingsChange %Shares OutstandingChange %Ownership %Change %Increased PositionsChange %Reduced PositionsChange %
31 Mar, 241-50.00%92-99.88%0.00%0.10%----
31 Dec, 232-74,758-1.15%0.36%--100.00%--
30 Sep, 232-74,75839.93%17.99%540135.36%1---100.00%
30 Jun, 232-95.65%53,424-99.75%0.06%0.01%1-88.89%1-92.86%
31 Mar, 2346-8.00%21,228,131-8.64%22.93%3.62%9-60.87%1440.00%
31 Dec, 22502.04%23,236,335-5.78%25.18%3.53%2335.29%10-9.09%
30 Sep, 2249-24,662,522-2.02%26.72%3.59%1741.67%11-21.43%
30 Jun, 2249-10.91%25,169,814-12.09%27.29%2.83%12-36.84%14-6.67%
31 Mar, 2255-6.78%28,631,055-8.25%31.04%2.53%19-42.42%1515.38%
31 Dec, 2159-11.94%31,205,099-21.02%35.03%1.78%333.13%13-38.10%
30 Sep, 2167-1.47%39,510,111-16.19%44.42%1.58%3218.52%2123.53%
30 Jun, 2168-11.69%47,139,717-9.98%53.00%1.53%27-34.15%17-10.53%
31 Mar, 217711.59%52,368,0857.61%58.92%1.67%4110.81%1911.76%
31 Dec, 20691.47%48,664,1625.02%59.46%2.04%37-19.57%1770.00%
30 Sep, 206815.25%46,338,28329.35%53.97%2.45%4643.75%10-33.33%
30 Jun, 20597.27%35,824,4402.28%46.97%2.22%32-3.03%1515.38%
31 Mar, 2055-3.51%35,025,89814.52%45.95%1.24%33-29.79%1385.71%
31 Dec, 195796.55%30,583,878117.30%60.97%9.46%47123.81%775.00%
30 Sep, 19293.57%14,074,77918.54%25.38%3.89%21-433.33%
30 Jun, 192833.33%11,873,847261.62%25.55%37.63%2161.54%3-
31 Mar, 192116.67%3,283,4836.78%8.24%9.72%1362.50%3-25.00%
31 Dec, 181820.00%3,074,956154.35%9.21%75.37%8-433.33%
30 Sep, 1815-21.05%1,208,97053.11%3.50%64.62%8-27.27%3-25.00%
30 Jun, 181918.75%789,58765.00%2.33%85.66%1122.22%4-
31 Mar, 181614.29%478,53033.02%1.65%63.39%912.50%433.33%
31 Dec, 171427.27%359,75268.70%1.61%205.25%833.33%3-25.00%
30 Sep, 171122.22%213,254-80.37%0.89%3.51%6100.00%4-
30 Jun, 179-18.18%1,086,453-55.26%5.03%2.59%3-50.00%4100.00%
31 Mar, 1711-8.33%2,428,382-9.73%13.94%3.13%620.00%2-66.67%
31 Dec, 161220.00%2,690,112-7.24%21.11%4.17%5-16.67%6500.00%
30 Sep, 1610-2,899,92215.80%22.51%5.37%6100.00%1-66.67%
30 Jun, 1610-16.67%2,504,257-4.72%20.47%4.30%3-25.00%3-
31 Mar, 16129.09%2,628,228-0.20%21.81%4.46%4-20.00%350.00%
31 Dec, 1511-8.33%2,633,617-4.28%22.12%4.14%5400.00%2-71.43%
30 Sep, 1512-25.00%2,751,269-12.18%23.10%3.34%1-87.50%7133.33%
30 Jun, 151623.08%3,132,7317.21%26.31%4.29%8-11.11%350.00%
31 Mar, 151385.71%2,921,982-7.49%24.78%3.36%928.57%2-
31 Dec, 147-3,158,683-27.16%-7---

Aptose Biosciences Insider Shareholders Trades


Open Market Insider Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Sep 25, 2023Seizinger Bernd R.director-P-PurchaseBuy17,000$3.14$53.38K17,000

Open Market Insider Buys

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
Sep 25, 2023Seizinger Bernd R.director-P-PurchaseBuy17,000$3.14$53.38K17,000

Insider Sells

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource

All Insider Owners Trades

DateNameRelationRoleTransactionBuy/SellSharesPriceValueShares HeldSource
May 10, 2024LEDRU PHILIPPE-Buy----
Feb 07, 2024Payne Fletcherofficer Sr VP and CFOA-AwardBuy55,000$2.00$110.00K55,000
Feb 07, 2024Bejar Rafaelofficer Sr VP & Chief Medical OfficerA-AwardBuy35,000$2.00$70.00K35,000
Feb 07, 2024LEDRU PHILIPPEofficer Sr VP & Ch Commerical OfficerA-AwardBuy11,000$2.00$22.00K11,000
Feb 07, 2024Rice William G.director, officer Chair, President & CEOA-AwardBuy70,000$2.00$140.00K70,000
Feb 07, 2024Seizinger Bernd R.director-A-AwardBuy3,333$2.00$6.67K3,333
Feb 07, 2024PLATZER ERICHdirector-A-AwardBuy3,333$2.00$6.67K3,333
Feb 07, 2024Vincent Mark D.director-A-AwardBuy3,333$1.97$6.57K3,333
Feb 07, 2024Ashe Carol Gaildirector-A-AwardBuy3,333$2.00$6.67K3,333
Feb 07, 2024BURGER DENIS Rdirector-A-AwardBuy3,333$2.00$6.67K3,333
Feb 07, 2024Whitehead Warrendirector-A-AwardBuy3,333$1.97$6.57K3,333
Sep 25, 2023Seizinger Bernd R.director-P-PurchaseBuy17,000$3.14$53.38K17,000
Jan 23, 2023Whitehead Warrendirector-A-AwardBuy100,000--100,000
Jan 23, 2023Vincent Mark D.director-A-AwardBuy100,000--100,000
Jan 23, 2023Seizinger Bernd R.director-A-AwardBuy100,000--100,000
Jan 23, 2023Rice William G.officer Chair, President & CEOA-AwardBuy150,000--513,252
Jan 23, 2023Rice William G.officer Chair, President & CEOA-AwardBuy400,000--400,000
Jan 23, 2023PLATZER ERICHdirector-A-AwardBuy100,000--100,000
Jan 23, 2023Payne Fletcherofficer SR VP & Chief Fin. OfficerA-AwardBuy200,000--200,000
Jan 23, 2023Payne Fletcherofficer SR VP & Chief Fin. OfficerA-AwardBuy100,000--100,000

The last insider buy of APTO was made by Seizinger Bernd R. on Sep 25 2023, buying 17,000 shares at $3.14 per share (worth $53.38K).

Aptose Biosciences Insider Ownership Trends


All Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q2 2027-1-
Q1 202410--
Q3 20231--
Q1 202314--
Q3 20224--
Q2 202231300.00%
Q1 20229--
Q4 2021142700.00%
Q3 202141400.00%
Q2 2021-2-
Q1 202110--
Q4 20201333.33%
Q3 2020-4-
Q2 2020124300.00%
Q1 202028--
Q4 20191--
Q2 201941400.00%
Q1 201915--
Q4 2018-6-
Q3 2018-1-

0 total buy trades, and 1 total sell trades (buy/sell ratio of 0.00%) were made by Aptose Biosciences's insiders, as of Q2 2027.

Open Market Insider Trades Trend

DateBuySellBuy/Sell Ratio
Q2 2027---
Q1 2024---
Q3 20231--
Q1 2023---
Q3 20221--
Q2 20221--
Q1 2022---
Q4 202112--
Q3 202121200.00%
Q2 2021-2-
Q1 2021---
Q4 2020-2-
Q3 2020-4-
Q2 2020-4-
Q1 20201--
Q4 20191--
Q2 20192--
Q1 201952250.00%
Q4 2018---
Q3 2018---

As of Q2 2027, Insider owners conducted 0 open market buy trades and 0 open market sell trades of Aptose Biosciences's stocks.

Aptose Biosciences Peer Ownership


TickerCompany
SPROSpero Therapeutics, Inc.
TFFPTFF Pharmaceuticals, Inc.
TILInstil Bio, Inc.
CRVSCorvus Pharmaceuticals, Inc.
INABIN8bio, Inc.
LTRNLantern Pharma Inc.
ADAPAdaptimmune Therapeutics plc
FBIOFortress Biotech, Inc.
MBIOMustang Bio, Inc.
TCONTRACON Pharmaceuticals, Inc.
CTMXCytomX Therapeutics, Inc.
ONCTOncternal Therapeutics, Inc.
AFMDAffimed N.V.
LBPHLongboard Pharmaceuticals, Inc.
GANXGain Therapeutics, Inc.
ACHLAchilles Therapeutics plc
LPTXLeap Therapeutics, Inc.
AGLESpyre Therapeutics, Inc.
NLTXNeurogene Inc.
ASMBAssembly Biosciences, Inc.
LIFEaTyr Pharma, Inc.

APTO Ownership FAQ


Aptose Biosciences is owned by institutional shareholders (0.00%), insiders (17.12%), and public (82.88%). The largest institutional shareholder of Aptose Biosciences is ANNANDALE CAPITAL, LLC (0.39% of total shares) and the top mutual fund owner is DRIEHAUS MUTUAL FUNDS (0.02% of total shares).

Aptose Biosciences's major institutional shareholders are ANNANDALE CAPITAL, LLC, and CALDWELL SUTTER CAPITAL, INC.. The top five shareholders own together 0.40% of the company's share outstanding.

As of Mar 2024, there are 1 institutional shareholders of Aptose Biosciences.

ANNANDALE CAPITAL, LLC owns 26.67K shares of Aptose Biosciences, representing 0.39% of the company's total shares outstanding, valued at $44K (as of Mar 2024).

As of Mar 2024, CALDWELL SUTTER CAPITAL, INC holds 92 shares of Aptose Biosciences (APTO), compromising 0.00% of the company, valued at $153.