⚪Not enough evidence · +1.0 pp vs similar · 1 signal on BIIB
🔒
The 0–100 score for BIIB, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on BIIB, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
See how many different insiders or members of Congress reported purchases or sales of BIIB. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.
Latest period: Sep 21, 2026–Oct 18, 2026 · UTC dates · today is excluded
Insider purchases
Short history
Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual.
Latest 28 days
0
Earlier median
0
Earlier range
0–0
Distinct filers per 28 daysScale: 0–1
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 0Limited or missing history
First stored company disclosure: Aug 5, 2026. Newest disclosure across this feed: Oct 16, 2026.
Earlier periods in the comparison: 1. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.
Insider sales
Short history
Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual.
Latest 28 days
0
Earlier median
0
Earlier range
0–0
Distinct filers per 28 daysScale: 0–1
Oct 20, 2025Oct 18, 2026
Earlier periodsLatest 28 daysEarlier median 0Limited or missing history
First stored company disclosure: Aug 5, 2026. Newest disclosure across this feed: Oct 16, 2026.
Earlier periods in the comparison: 1. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.
Congress purchases
Within earlier range
This count falls within the range of the 12 earlier comparable periods in this view.
First stored company disclosure: May 1, 2014. Newest disclosure across this feed: Oct 15, 2026.
Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.
Congress sales
Sparse history
Only 2 of 12 earlier periods had activity. That is too little recurring activity to label this count unusual.
First stored company disclosure: May 1, 2014. Newest disclosure across this feed: Oct 15, 2026.
Earlier periods in the comparison: 12. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.
Exact counts, dates and filings for all four categoriesInsider purchases · Short history
Only 1 earlier period is on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–0.
Insider purchases: distinct filers in stored disclosures
The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.
Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.
These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.
Company timeline
What has been happening?
May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.
Company filings
Insiders
Public officials
FDA & trials
Owners & lobbying
Company filings · May 2026
5 on file. This page lists only the newest records.
Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.
Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.