Aptose Biosciences Inc.

APTOF

Aptose Biosciences Inc.

APTOF

Insider Sentiment (TTM):

Last Purchase:2024-11-25Last Sale:-Shares Purchased (TTM):0Shares Sold (TTM):0

Institutional Sentiment:

As of:2026-03-31Institutional Shares Owned:23,979Shares Outstanding:2,552,429Institutional Ownership Pct.:0.94%

Earnings Market Reaction:

Filing Date:2026-05-13Price on Filing Date:N/APrevious Close:N/A% Change:N/A

Companies in Biological Products, (No Diagnostic Substances)

AMGN GILD SCLX BIIB MRNA RVMD

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Financial Statements

10‑Q10‑K

Values in Millions ($)	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30	2024-03-31	2023-12-31	2023-09-30	2023-06-30
Cash And Cash Equivalents At Carrying Value	-	1	1	1	5	6	8	8	7	9	16	8
Short Term Investments	-	-	-	-	-	-	-	-	2	-	2	15
Restricted Cash And Cash Equivalents At Carrying V…	-	3	1	-	-	1	-	-	-	-	-	-
Restricted Cash Equivalents Current	-	3	-	1	-	1	-	-	-	0	-	-
Assets Current
Assets Current	6	6	4	3	7	10	10	10	12	12	20	25
Cash	1	-	-	-	-	-	-	-	-	-	-	-
Restricted Cash	3	-	-	-	-	-	-	-	-	-	-	-
Prepaid Expense Current	2	2	2	2	2	2	1	1	2	2	2	2
Other Assets Current	0	0	0	0	0	1	1	1	1	1	0	0
Property Plant And Equipment Net	0	0	0	0	0	0	0	0	0	0	0	0
Assets Noncurrent
Assets Noncurrent	5	4	3	2	0	1	1	1	1	1	1	1
Operating Lease Right Of Use Asset	0	0	0	0	0	1	1	1	1	1	1	1
Other Assets Noncurrent	4	3	2	2	-	0	-	-	-	-	-	-
Assets	11	10	6	6	7	10	11	11	13	13	21	27
Accounts Payable Current	4	3	1	3	2	1	2	7	2	3	3	4
Liabilities Current
Accrued Liabilities Current	7	6	5	5	3	3	8	5	9	9	9	8
Liabilities Current	11	9	7	9	6	4	10	13	12	15	12	12
Operating Lease Liability Current	0	0	0	0	0	0	0	0	0	0	0	0
Liabilities Noncurrent
Liabilities Noncurrent	34	28	19	11	9	10	10	-	-	1	-	-
Operating Lease Liability Noncurrent	-	0	0	0	0	0	0	0	1	1	1	1
Liabilities	45	37	26	20	15	15	20	13	13	16	13	13
Common Stock Value	460	460	460	460	460	457	452	452	450	445	444	439
Additional Paid In Capital	84	84	84	84	84	83	82	82	79	72	72	71
Stockholders Equity
Stockholders Equity	-35	-27	-19	-14	-7	-5	-9	-2	0	-3	8	14
Accumulated Other Comprehensive Income Loss Net Of…	-4	-4	-4	-4	-4	-4	-4	-4	-4	-4	-4	-4
Retained Earnings Accumulated Deficit	-574	-566	-559	-554	-547	-541	-539	-532	-525	-516	-504	-492
Liabilities And Stockholders Equity	11	10	6	6	7	10	11	11	13	13	21	27
Common Stock No Par Value	0	0	0	0	0	0	0	0	0	0	0	0
Common Stock Shares Issued	20	20	20	20	20	20	20	18	16	0	0	0
Shares Outstanding	3	3	3	3	3	2	2	2	1	1	1	1

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Custom Table

10‑Q10‑K

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Interactive Financial Visualizations

10‑Q10‑K

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Earnings Market Reaction

10‑Q10‑K

Fiscal Year	Q1 1 Month	Q1 2 Month	Q1 3 Month	Q2 1 Month	Q2 2 Month	Q2 3 Month	Q3 1 Month	Q3 2 Month	Q3 3 Month	Q4 1 Month	Q4 2 Month	Q4 3 Month
2026	-7.65%	-	-	-	-	-	-	-	-	-	-	-
2025	3.03%	-50.71%	0.61%	-4.84%	-12.90%	7.26%	13.76%	8.04%	17.98%	2.64%	2.28%	-6.36%
2024	-25.20%	-39.69%	-60.24%	-26.85%	-26.99%	-30.16%	-50.14%	-39.61%	-54.98%	-40.66%	-49.40%	-44.88%
2023	-	-	-	1.00%	-30.00%	-20.50%	-17.90%	-21.60%	-38.89%	-23.06%	-26.25%	-44.37%
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Performance and Valuation Metrics

Metrics	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30	2024-03-31	2023-12-31	2023-09-30	2023-06-30
Liquidity Ratios
Current Ratio	0.55	0.69	0.53	0.36	1.10	2.14	1.05	0.80	0.97	0.78	1.59	2.11
Quick Ratio	0.38	0.46	0.25	0.16	0.79	1.63	0.96	0.70	0.82	0.65	1.45	1.96
Working Capital	-5.08M	-2.86M	-3.30M	-5.73M	651.00K	5.07M	477.00K	-2.55M	-318.00K	-3.38M	7.29M	13.29M
Leverage & Debt
Debt to Equity	-1.31	-1.37	-1.33	-1.39	-2.01	-3.23	-2.20	-6.03	92.40	-5.48	1.68	0.93
Interest Coverage TTM	-84.59	-61.73	-46.52	-101.66	-112.98	-113.52	-159.41	-189.29	-390.84	-	-	-
Debt Ratio	4.23	3.71	4.07	3.57	1.99	1.45	1.84	1.20	0.99	1.22	0.63	0.48
Efficiency & Turnover
Asset Turnover TTM	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Per Share Metrics
Diluted EPS TTM	-10.80	-10.41	-7.56	-8.28	-10.03	-12.13	-19.45	-24.05	-35.92	-37.91	-36.65	-36.89
Free Cash Flow Per Share TTM	-9.81	-8.99	-9.48	-10.65	-12.70	-17.16	-20.19	-22.30	-34.35	-33.05	-32.78	-31.37
Dividend Per Share TTM	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Growth Metrics
Net Income Growth (1Y)	29.18%	0.15%	-46.11%	-47.58%	-54.78%	-50.34%	-27.31%	-15.32%	7.16%	22.44%	-12.28%	-17.54%
EPS Growth (1Y)	7.62%	-14.19%	-61.13%	-65.59%	-72.07%	-68.01%	-46.94%	-34.81%	4.19%	15.34%	-16.90%	-18.65%
Calculated Values
Free Cash Flow TTM	-25.04M	-21.99M	-24.21M	-27.17M	-27.01M	-35.98M	-37.17M	-37.36M	-45.11M	-44.65M	-44.05M	-40.46M
Net Debt	-1.02M	-935.00K	-613.00K	-553.00K	-4.74M	-6.15M	-7.96M	-8.33M	-7.35M	-9.25M	-15.72M	-8.40M
Per-Share and Margin
EPS TTM
Adjusted EPS TTM
Cash Flow Per Share TTM
Pretax Margin TTM
Stock Comp to Revenue TTM
Turnover Ratios and Averages
Average Assets
Average Equity
Average Inventory
Average Receivables
Average Accounts Payables
Inventory Turnover TTM
Payables Turnover TTM
Days Inventory Outstanding TTM
Days Payables Outstanding TTM
Cash Conversion Cycle TTM
Working Capital to Revenue
Deferred Revenue to Revenue
Growth Rates
Total Assets Growth (1Y)
Total Assets Growth (3Y)
Total Assets Growth (5Y)
Dividends Paid Growth (1Y)
Dividends Paid Growth (3Y)
Dividends Paid Growth (5Y)
EPS Growth (3Y)
EPS Growth (5Y)
Net Income Growth (3Y)
Net Income Growth (5Y)
Net Profit Margin Growth (1Y)
Net Profit Margin Growth (3Y)
Net Profit Margin Growth (5Y)
Net Revenue Growth (3Y)
Net Revenue Growth (5Y)
Deferred Revenue Growth (1Y)
Retained Earnings Growth (1Y)
Credit, Liquidity, Returns, Payout
Cash Ratio
Net Working Capital
Debt to EBITDA TTM
Net Debt to EBITDA TTM
Net Debt to Equity
Altman A
Altman B
Altman C
Altman D
Altman E
Altman Z-Score
ROA TTM
ROE TTM
NOPAT TTM
ROIC TTM
Effective Tax Rate TTM
Payout Ratio TTM
Dilution Ratio
Retained Earnings to Equity
Treasury Stock to Equity
Treasury Stock Change (1Y)
Accrued to Current Liabilities
Valuation Ratios
P/CF TTM
Dividend Yield TTM
Free Cash Flow Yield TTM
EV EBITDA TTM
EV EBIT TTM
Stock Compensation TTM
Adjusted Net Income TTM
Billings TTM
Total Debt
Invested Capital

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Insider Transactions

2024-11-25Purchase

Owner: Rice, William G.

Title: Chair, President & CEO

Shares: 100,000

Price/Share: $0.20

Value: $20,000.00

Shares Owned: 613,252

Relationship: Director,Officer

Ownership: Direct

2023-09-22Purchase

Owner: Seizinger, Bernd R.

Title: -

Shares: 17,000

Price/Share: $3.14

Value: $53,380.00

Shares Owned: 17,000

Relationship: Director

Ownership: Direct

2022-09-19Purchase

Owner: Rice, William G.

Title: Chair, President & CEO

Shares: 10,000

Price/Share: $0.68

Value: $6,800.00

Shares Owned: 363,252

Relationship: Director,Officer

Ownership: Direct

2022-09-19Purchase

Owner: Payne, Fletcher

Title: SR VP & Chief Fin. Officer

Shares: 10,000

Price/Share: $0.68

Value: $6,800.00

Shares Owned: 10,000

Relationship: Officer

Ownership: Indirect

2022-06-06Purchase

Owner: Rice, William G.

Title: Chair, President & CEO

Shares: 10,000

Price/Share: $0.97

Value: $9,700.00

Shares Owned: 353,252

Relationship: Director,Officer

Ownership: Direct

Filed Date	Owner	Relationship	Title	Ownership	Purchase/Sale	No. Shares	Price Per Share	Value	Shares Owned	Document Type
2024-11-25	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	100,000	0.20	$20,000.00	613,252	4
2023-09-22	Seizinger, Bernd R.	Director	-	Direct	Purchase	17,000	3.14	$53,380.00	17,000	4
2022-09-19	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	10,000	0.68	$6,800.00	363,252	4
2022-09-19	Payne, Fletcher	Officer	SR VP & Chief Fin. Officer	Indirect	Purchase	10,000	0.68	$6,800.00	10,000	4
2022-06-06	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	10,000	0.97	$9,700.00	353,252	4
2021-12-20	Burger, Denis R	Director	-	Direct	Purchase	10,000	1.45	$14,500.00	31,671	4
2021-12-16	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	13,183	1.52	$20,038.16	343,252	4
2021-12-16	Platzer, Erich	Director	-	Direct	Purchase	100,000	1.38	$138,000.00	505,000	4
2021-12-15	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	17,822	1.12	$19,960.64	330,069	4
2021-12-15	Platzer, Erich	Director	-	Direct	Purchase	270,000	1.18	$318,600.00	405,000	4
2021-11-26	Rice, William G.	Director,Officer	Chair, President & CEO	Direct	Purchase	8,643	2.31	$19,965.33	312,247	4
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Institutional Ownership

No data available for chart

2026-03-31

0.94%

Inst. Shares: 23,979

Shares Outstanding: 2,552,429

2025-12-31

0.98%

Inst. Shares: 23,979

Shares Outstanding: 2,447,353

2025-09-30

0.94%

Inst. Shares: 23,969

Shares Outstanding: 2,552,429

2025-06-30

0.94%

Inst. Shares: 23,991

Shares Outstanding: 2,552,429

2025-03-31

7.27%

Inst. Shares: 154,566

Shares Outstanding: 2,126,287

Date	Institutional Shares Owned	Shares Outstanding	Institutional Ownership %
2026-03-31	23,979	2,552,429	0.94%
2025-12-31	23,979	2,447,353	0.98%
2025-09-30	23,969	2,552,429	0.94%
2025-06-30	23,991	2,552,429	0.94%
2025-03-31	154,566	2,126,287	7.27%
2024-12-31	3,896,178	2,096,940	185.80%
2024-09-30	3,204,150	1,840,812	174.06%
2024-06-30	2,703,806	1,675,428	161.38%
2024-03-31	2,956,536	1,313,250	225.13%
2023-12-31	3,345,492	1,350,924	247.64%
2023-09-30	1,471,452	1,343,793	109.50%
2023-06-30	1,078,932	1,289,793	83.65%
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Aptose Biosciences Inc. (APTOF) — SEC Financial Statements & Analysis

Aptose Biosciences Inc. (APTOF) is a biological products, (no diagnostic substances) company, incorporated in A6. Aptose Biosciences Inc. trades on OTC as: APTOF. Based on its latest SEC filing (Form 10-Q, period ending 2026-03-31), Aptose Biosciences Inc. reported a Debt-to-Equity ratio of -1.31x. Figures below are sourced from SEC EDGAR, as-filed.

Debt To Equity: -1.31x

Data as of 2026-03-31 · Source: SEC EDGAR

Frequently Asked Questions

What industry is Aptose Biosciences Inc. in?

Aptose Biosciences Inc. (APTOF) operates in the Biological Products, (No Diagnostic Substances) industry.

What exchange does APTOF trade on?

Aptose Biosciences Inc. (APTOF) trades on the OTC.

Where is Aptose Biosciences Inc. incorporated?

Aptose Biosciences Inc. is incorporated in Ontario, Canada.

Aptose Biosciences Inc. (APTOF) — SEC Financial Statements & Analysis

Frequently Asked Questions

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