GLSI Stock Price Chart
Daily OHLCV with technical indicators — pan, zoom, and customize your view
04
range
bars
Bar granularity adapts to the selected period — hover the chart to see open/high/low/close for a bar.
10-Year Performance
Revenue, net income, margins and EPS trends
06
EPS$-1.432022-12-31 → 2025-12-31
Valuation & Ratios07–12
Valuation
P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?
Metric
5Y trend
GLSI
5Y avg
Peer Median
Verdict
P/E
-11.95Y avg ≈-16.0
≈-16.0
·
·
P/B (MRQ)
80.05Y avg ≈235.9
≈235.9
1.4
Overvalued
Price / Cash Flow
-24.55Y avg ≈-25.7
≈-25.7
·
·
Price / Tangible Book
687.45Y avg ≈191.1
≈191.1
·
·
Peer median is calculated on a standardized basis per metric and may not always match the TTM/MRQ basis shown for this stock.
Profitability
Gross, operating and net margins; ROE, ROA, ROIC
Metric
5Y trend
GLSI
5Y avg
Peer Median
Verdict
ROA
-376.9%5Y avg ≈-196.8%
≈-196.8%
-33.5%
Weak
ROE
-2159.7%5Y avg ≈-687.2%
≈-687.2%
-64.7%
Weak
Financial Health
Debt, liquidity, solvency — balance sheet strength
Metric
5Y trend
GLSI
5Y avg
Peer Median
Verdict
Current Ratio (MRQ)
1.5
·
7.9
Low liquidity
Quick Ratio
1.15Y avg ≈19.7
≈19.7
7.5
Low liquidity
Growth
Revenue, EPS and net income growth: YoY, 3Y CAGR, 5Y CAGR
No data for this ratio group yet
Not enough fundamentals data to compute this ratio group yet.
Per Share Metrics
EPS, book value per share, cash flow per share, dividend per share
Metric
5Y trend
GLSI
5Y avg
Peer Median
Verdict
EPS (Diluted)
$-1.435Y avg ≈$-1.02
≈$-1.02
·
·
Cash Flow / Share
$-0.735Y avg ≈$-0.60
≈$-0.60
·
·
Cash / Share
$0.435Y avg ≈$0.58
≈$0.58
·
·
Capital Efficiency
Asset turnover, inventory turnover, receivables turnover
No data for this ratio group yet
Not enough fundamentals data to compute this ratio group yet.
value · ≈ 5Y avg · industry median · verdict relative to median
Earnings History
EPS actual vs estimate, surprise %, beat rate, next earnings date
14
Avg Surprise-40.4%
Next ReportNov 12, 2026
Period
Report
EPS Actual
EPS Est
Surprise
June 30, 2026
Aug 12, 2026
$-0.27
$-0.34
19.8%
March 31, 2026
Jun 4, 2026
$-0.39
$-0.34
-15.9%
Dec. 31, 2025
Jun 1, 2026
$-0.58
$-0.33
-77.7%
Sept. 30, 2025
$-0.30
$-0.30
0.30%
June 30, 2025
$-0.30
$-0.24
-22.5%
March 31, 2025
$-0.25
$-0.24
-2.1%
Dec. 31, 2024
$-0.61
$-0.21
-184.8%
Full Fundamentals
All metrics by year — income statement, balance sheet, cash flow
15
Income Statement11
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
R&D Expense
$17M
$15M
$8M
$6M
$4M
$1M
$3M
SG&A Expense
$2M
$2M
$2M
$2M
$1M
$806.2K
$818.9K
Operating Expenses
$19M
$18M
$9M
$8M
$5M
$2M
$3M
Operating Income
$-19M
$-18M
$-9M
$-8M
$-5M
$-2M
$-3M
Interest Income
$89.7K
$223.0K
$436.1K
$215.0K
$27.4K
$832
·
Net Income
$-19M
$-17M
$-9M
$-8M
$-5M
$-2M
$-3M
EPS (Basic)
$-1.43
$-1.34
$-0.69
$-0.61
$-0.35
·
·
EPS (Diluted)
$-1.43
$-1.34
$-0.69
$-0.61
·
·
·
Shares (Basic)
13,534,994
13,014,585
12,848,165
·
·
·
·
Shares (Diluted)
13,534,994
13,014,585
12,848,165
12,913,848
·
·
·
EBITDA
$-19M
$-16M
$-9M
$-8M
·
$-2M
·
Balance Sheet13
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
Cash & Equivalents
$6M
$4M
$7M
$13M
$27M
$29M
$6.8K
Current Assets
$6M
$4M
·
·
·
$29M
$6.8K
Intangibles
·
$1.8K
$5.4K
$9.0K
$12.6K
$16.2K
$19.8K
Total Assets
$6M
$4M
$7M
$13M
$27M
$29M
$26.7K
Accounts Payable
$5M
$3M
$256.3K
$220.8K
$220.8K
$711.0K
$730.3K
Current Liabilities
$6M
$3M
$294.4K
$262.9K
$385.2K
$1M
$1M
Total Liabilities
$6M
$3M
$294.4K
$262.9K
$385.2K
$1M
$1M
Common Stock
$14.3K
$13.2K
$12.8K
$12.8K
$13.1K
$12.7K
$8.5K
Paid-in Capital
·
·
·
·
·
$57M
$26M
Retained Earnings
$-87M
$-68M
$-50M
$-41M
$-34M
$-29M
$-27M
Stockholders' Equity
$353.2K
$908.6K
$7M
$13M
$27M
$28M
$-1M
Liabilities + Equity
$6M
$4M
$7M
$13M
$27M
$29M
$26.7K
Shares Outstanding
14,298,446
13,152,729
12,848,165
12,848,165
13,147,829
12,703,541
8,458,048
Cash Flow7
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
Stock-based Comp
$7M
$7M
$2M
$2M
$660.6K
$678.0K
$194.9K
Operating Cash Flow
$-10M
$-7M
$-6M
$-6M
$-4M
$-1M
$-293.3K
Stock Issued
·
·
·
·
$3M
$30M
·
Stock Repurchased
·
·
·
$8M
·
·
·
Net Stock Activity
·
·
·
$-8M
·
$30M
·
Financing Cash Flow
$12M
$4M
·
$-8M
$3M
$30M
$215.0K
Net Change in Cash
$2M
$-3M
$-6M
$-14M
$-1M
$29M
$-78.3K
Profitability2
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
ROA
-376.9%
-284.8%
-86.9%
-38.5%
·
-13.0%
·
ROE
-2159.7%
-420.1%
-114.3%
-54.7%
·
-11.5%
·
Liquidity & Solvency2
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
Current Ratio
1.1
·
·
·
·
27.4
·
Quick Ratio
1.1
2.6
23.7
51.2
·
27.4
·
Per Share4
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
Book Value / Share
$0.02
$0.19
$0.52
$1.03
·
$2.18
·
Cash Flow / Share
$-0.73
$-0.56
$-0.50
·
·
·
·
Cash / Share
$0.43
$0.31
$0.54
$1.05
·
$2.26
·
EPS (TTM)
$-1.43
$-1.21
$-0.69
$-0.61
·
·
·
Valuation (TTM)7
Metric
Trend
2025
2024
2023
2022
2021
2020
2019
Net Income TTM
$-19M
$-16M
$-9M
$-8M
$-5M
$-2M
·
Market Cap
$300M
$148M
$135M
$195M
·
$463M
·
P/E
-14.7
-9.3
-15.2
-24.9
·
·
·
P/B
850.5
58.3
20.2
14.8
·
16.8
·
P / Tangible Book
850.5
58.3
20.2
14.8
11.9
16.8
·
P / Cash Flow
-30.3
-20.3
-20.9
-31.5
·
-401.8
·
Earnings Yield
-6.8%
-10.8%
-6.6%
-4.0%
·
·
·
Income Statement11
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
R&D Expense
$4M
$5M
$8M
$3M
$3M
$2M
$9M
$2M
$2M
$2M
$2M
$2M
$1M
$2M
$2M
$2M
SG&A Expense
$462.9K
$518.2K
$538.8K
$466.9K
$352.8K
$497.6K
$1M
$437.0K
$353.5K
$342.7K
$503.1K
$344.8K
$368.3K
$413.2K
$436.6K
$659.6K
Operating Expenses
$4M
$6M
$8M
$4M
$4M
$3M
$10M
$3M
$3M
$3M
$3M
$3M
$2M
$2M
$3M
$2M
Operating Income
$-4M
$-6M
$-8M
$-4M
$-4M
$-3M
$-10M
$-3M
$-3M
$-3M
$-3M
$-3M
$-2M
$-2M
$-3M
$-2M
Interest Income
$73.0K
$68.6K
$22.3K
$22.8K
$20.7K
$24.0K
$43.9K
$60.3K
$54.7K
$64.0K
$89.3K
$111.1K
$119.5K
$116.2K
$104.2K
$64.0K
Net Income
$-4M
$-6M
$-8M
$-4M
$-4M
$-3M
$-10M
$-3M
$-3M
$-2M
$-3M
$-2M
$-2M
$-2M
$-3M
$-2M
EPS (Basic)
$-0.27
$-0.39
$-0.62
$-0.27
$-0.28
$-0.21
$-0.75
$-0.20
$-0.20
$-0.19
$-0.20
$-0.19
$-0.13
$-0.17
$-0.22
$-0.18
EPS (Diluted)
$-0.27
$-0.39
$-0.62
$-0.27
$-0.28
$-0.21
$-0.75
$-0.20
$-0.20
$-0.19
$-0.20
$-0.19
$-0.13
$-0.17
$-0.22
$-0.18
Shares (Basic)
14,621,230
14,565,230
·
13,641,384
13,370,983
13,171,555
·
13,142,457
12,906,867
12,859,685
·
12,848,165
12,848,165
12,848,165
·
·
Shares (Diluted)
14,621,230
14,565,230
·
13,641,384
13,370,983
13,171,555
·
13,142,457
12,906,867
12,859,685
·
12,848,165
12,848,165
12,848,165
·
12,823,447
EBITDA
$-4M
$-6M
·
$-4M
$-4M
$-3M
·
$-3M
$-3M
$-3M
·
$-3M
$-2M
$-2M
·
$-2M
Balance Sheet12
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Cash & Equivalents
$9M
$11M
$6M
$4M
$3M
$3M
$4M
$6M
$7M
$6M
$7M
$9M
$11M
$12M
$13M
$16M
Current Assets
$9M
$11M
$6M
·
·
·
$4M
·
·
·
·
·
·
·
·
·
Intangibles
·
·
·
·
·
$876
$1.8K
$2.7K
$3.6K
$4.5K
$5.4K
$6.3K
$7.2K
$8.1K
$9.0K
$9.9K
Total Assets
$9M
$11M
$6M
$4M
$3M
$3M
$4M
$6M
$7M
$6M
$7M
$9M
$11M
$12M
$13M
$16M
Accounts Payable
$5M
$4M
$5M
$1M
$1M
$1M
$3M
$553.9K
$1M
$346.6K
$256.3K
$230.9K
$300.5K
$220.8K
$220.8K
$220.8K
Current Liabilities
$6M
$5M
$6M
$2M
$2M
$1M
$3M
$842.4K
$1M
$389.6K
$294.4K
$297.3K
$301.5K
$235.6K
$262.9K
$237.9K
Total Liabilities
$6M
$5M
$6M
$2M
$2M
$1M
$3M
$842.4K
$1M
$389.6K
$294.4K
$297.3K
$301.5K
$235.6K
$262.9K
$237.9K
Common Stock
$14.7K
$14.7K
$14.3K
$13.8K
$13.5K
$13.2K
$13.2K
$13.1K
$13.1K
$12.9K
$12.8K
$12.8K
$12.8K
$12.8K
$12.8K
$12.8K
Retained Earnings
$-97M
$-93M
$-87M
$-78M
$-73M
$-69M
$-68M
$-58M
$-55M
$-53M
$-50M
$-48M
$-45M
$-44M
$-41M
$-39M
Stockholders' Equity
$3M
$5M
$353.2K
$2M
$1M
$1M
$908.6K
$5M
$6M
$5M
$7M
$9M
$11M
$12M
$13M
$15M
Liabilities + Equity
$9M
$11M
$6M
$4M
$3M
$3M
$4M
$6M
$7M
$6M
$7M
$9M
$11M
$12M
$13M
$16M
Shares Outstanding
14,678,208
14,665,993
14,298,446
13,794,577
13,472,939
13,192,647
13,152,729
13,144,653
13,067,687
12,875,282
12,848,165
12,848,165
12,848,165
12,848,165
12,848,165
12,848,165
Cash Flow7
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Stock-based Comp
$1M
$2M
$2M
$2M
$2M
$2M
$5M
$594.5K
$594.5K
$594.5K
$594.5K
$594.5K
$594.5K
$594.5K
$594.5K
$759.6K
Operating Cash Flow
$-2M
$-5M
$-3M
·
·
$-2M
$-2M
$-3M
$-1M
$-2M
$-2M
$-2M
$-967.0K
$-2M
$-2M
$-2M
Stock Issued
·
·
·
·
·
·
·
$1M
$266.7K
$299.1K
·
·
·
·
·
·
Stock Repurchased
·
·
·
·
·
·
·
·
·
·
·
·
·
·
$0
$0
Net Stock Activity
·
·
·
·
·
·
·
·
·
$299.1K
·
·
·
·
·
·
Financing Cash Flow
$310.7K
$9M
$6M
$3M
$3M
$492.4K
$121.8K
$1M
$3M
$299.1K
·
·
·
·
$0
$0
Net Change in Cash
$-2M
$4M
$2M
$681.9K
$375.1K
$-1M
$-2M
$-1M
$2M
$-1M
$-2M
$-2M
$-967.0K
$-2M
$-2M
$-2M
Profitability2
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
ROA
-65.8%
-85.4%
·
-86.2%
-77.8%
-78.9%
·
-35.6%
-28.7%
-28.4%
·
-19.3%
-11.6%
-13.4%
·
-10.4%
ROE
-173.3%
-171.9%
·
-115.9%
-110.1%
-101.3%
·
-38.6%
-31.6%
-29.4%
·
-19.7%
-11.8%
-13.6%
·
-10.6%
Liquidity & Solvency2
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Current Ratio
1.5
2.0
·
·
·
·
·
·
·
·
·
·
·
·
·
·
Quick Ratio
1.5
2.0
·
2.3
1.9
1.9
·
6.9
5.3
14.1
·
30.8
36.3
50.6
·
65.7
Per Share4
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Book Value / Share
$0.21
$0.36
·
$0.16
$0.11
$0.10
·
$0.38
$0.45
$0.40
·
$0.69
$0.83
$0.91
·
$1.20
Cash Flow / Share
·
$-0.32
·
·
·
$-0.14
·
·
·
$-0.14
·
·
·
·
·
·
Cash / Share
$0.60
$0.72
·
$0.28
$0.23
$0.21
·
$0.44
$0.55
$0.43
·
$0.71
$0.85
$0.93
·
$1.22
EPS (TTM)
$-1.55
$-1.56
·
$-1.51
$-1.44
$-1.36
·
$-0.79
$-0.78
$-0.71
·
$-0.71
$-0.70
$-0.63
·
·
Valuation (TTM)7
Metric
Trend
Q2 2026
Q1 2026
Q4 2025
Q3 2025
Q2 2025
Q1 2025
Q4 2024
Q3 2024
Q2 2024
Q1 2024
Q4 2023
Q3 2023
Q2 2023
Q1 2023
Q4 2022
Q3 2022
Net Income TTM
$-22M
$-22M
·
$-20M
$-19M
$-18M
·
$-10M
$-10M
$-9M
·
$-9M
$-9M
$-8M
·
$-7M
Market Cap
$344M
$352M
·
$137M
$122M
$126M
·
$189M
$226M
$257M
·
$114M
$124M
$177M
·
$117M
P/E
-15.1
-15.4
·
-6.6
-6.3
-7.0
·
-18.2
-22.1
-28.1
·
-12.5
-13.8
-21.9
·
·
P/B
110.5
66.8
·
62.8
84.9
95.9
·
37.9
38.4
50.1
·
12.8
11.6
15.2
·
7.6
P / Tangible Book
110.5
66.8
·
62.8
84.9
96.0
·
37.9
38.4
50.2
·
12.8
11.6
15.2
·
7.6
P / Cash Flow
·
-74.9
·
·
·
-68.6
·
·
·
-144.0
·
·
·
-113.8
·
·
Earnings Yield
-6.6%
-6.5%
·
-15.2%
-15.9%
-14.3%
·
-5.5%
-4.5%
-3.6%
·
-8.0%
-7.3%
-4.6%
·
·
Most recent period on the left · null values shown as ·
Financial Statements
Income statement, balance sheet, cash flow — annual, last 5 years
16
Metric
2025-12-31
2024-12-31
2023-12-31
2022-12-31
2021-12-31
Net Income
$-19M
$-17M
$-9M
$-8M
$-5M
Diluted EPS
$-1.43
$-1.34
$-0.69
$-0.61
·
Metric
2025-12-31
2024-12-31
2023-12-31
2022-12-31
2021-12-31
Current Ratio
1.1
·
·
·
·
Quick Ratio
1.1
2.6
23.7
51.2
·
No data for this statement
Not enough fundamentals data to build this statement yet.
Institutional owners (13F)
60 filers
· $45.3M total
· As of June 30, 2026
17
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
Holders60
Value held$45.3M
New positions6
Exited positions11
Institutional activity — Q2 2026 vs prior quarter
New positions
Exited positions
Increased
Decreased
Net shares change
6 (-18 vs prior Q)
11 (+2 vs prior Q)
24 (+6 vs prior Q)
15 (+3 vs prior Q)
-26K
Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.
Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.
Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.
Company insiders
8 insiders
· 3 officers · 5 directors