First Form 4 purchase or sale (code P or S) here by this insider on our record.
The trade is 81.8% of the 27,889 shares held after it.
No other insider sold within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: CSO and CDO Shirvan Mitchell sold about $31.0K of SLXN on Mar 26, 2026, the largest insider sale at the company on our record; 6 funds added in the latest 13F quarter.
1 transaction on record · a thin record, read with care
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
n/a
fewer than four consecutive quarters of revenue filed
Revenue, TTM SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Single quarter
Net margin, TTM
n/a
needs four consecutive quarters of both revenue and net income
Net margin, TTM SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Single quarter
Free cash flow, TTM
-$12.4M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM SLXN
FY Dec 2025
-$10.8M
FY Dec 2024
-$8.4M
FY Dec 2023
n/a
Jun 2026
-$2.9M
Mar 2026
-$3.6M
Dec 2025
-$3.0M
Sep 2025
-$2.8M
Jun 2025
-$2.5M
Mar 2025
-$2.5M
Dec 2024
-$2.9M
Sep 2024
-$2.7M
At each fiscal year end
Single quarter
Debt to equity
n/a
no debt line filed
Debt to equity SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
n/a
no debt line filed
Cash flow to debt SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-17,022%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
-17,022%
Mar 2026
-897.5%
Dec 2025
n/a
Sep 2025
-771.2%
Jun 2025
n/a
Mar 2025
-802.2%
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-278.0%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets SLXN
FY Dec 2025
-236.4%
FY Dec 2024
-406.9%
FY Dec 2023
n/a
Jun 2026
-278.0%
Mar 2026
-200.0%
Dec 2025
-236.4%
Sep 2025
-125.8%
Jun 2025
-440.0%
Mar 2025
-283.0%
Dec 2024
-406.9%
Sep 2024
-532.9%
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
tax provision or pre-tax income not filed for the four quarters
Return on invested capital SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-721.3%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed SLXN
FY Dec 2025
-612.7%
FY Dec 2024
-1,048%
FY Dec 2023
n/a
Jun 2026
-721.3%
Mar 2026
-394.5%
Dec 2025
-612.7%
Sep 2025
-219.1%
Jun 2025
-771.0%
Mar 2025
-365.2%
Dec 2024
-1,048%
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
0.00x
close 2026-10-26 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
P/E, trailing SLXN
FY Dec 2025
0.12x
FY Dec 2024
0.08x
FY Dec 2023
n/a
Jun 2026
0.03x
Mar 2026
0.10x
Dec 2025
0.12x
Sep 2025
0.01x
Jun 2025
0.03x
Mar 2025
0.04x
Dec 2024
0.08x
Sep 2024
0.07x
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
n/a
no debt line filed
Enterprise value SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
-1,278%
TTM free cash flow over market value at close 2026-10-26
FCF yield SLXN
FY Dec 2025
-18.0%
FY Dec 2024
-0.0%
FY Dec 2023
n/a
Jun 2026
-116.4%
Mar 2026
-28.2%
Dec 2025
-18.0%
Sep 2025
-43.2%
Jun 2025
-1.0%
Mar 2025
-0.0%
Dec 2024
-0.0%
Sep 2024
-0.9%
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
trailing EPS growth -97%, PEG needs growth
PEG, trailing SLXN
FY Dec 2025
n/a
FY Dec 2024
n/a
FY Dec 2023
n/a
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
0.00x
Jun 2025
0.00x
Mar 2025
0.00x
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
SLXN ranks highest on risk and compliance (67th percentile) and institutional and government (8th), and lowest on profitability (3rd), among Pharma & Biotech peers.
Profitability
3
Inputs
Return on equity-17022% · 1 pct, sector of 545
Return on assets-278.0% · 7 pct, sector of 691
Return on invested capitaltax provision or pre-tax income not filed for the four quarters
Return on capital employed-721.3% · 2 pct, sector of 576
Institutional and government
8
Inputs
Funds adding, latest quarter6 · 8 pct, sector of 698
Congress net buyers, 365dno Congress trades in 365 days
Federal contracts, 180dno federal contracts in 180 days
Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
67
Inputs
Short interest, % of float+2.9% · 67 pct, sector of 816
Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
New text in Risk Factors, latest 10-Kneeds two 10-Ks with a Risk Factors section (not 20-F filers or stubs)
4 not measured: Financial health, Growth, Insider conviction, US patents
Financial health needs 1 of 2 inputs, 0 present: no debt line filed
Growth needs 1 of 2 inputs, 0 present: no backlog line filed, or no year-earlier backlog; no revenue for this year and the year before
Insider conviction needs 1 of 2 inputs, 0 present: no Form 4 purchase or sale (code P or S) in 180 days; no insider trades in 180 days
US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet
3 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
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