The insider transactions that smart money tracks before the market opens.
Daily analysis of SEC Section 16 filings — Forms 3, 4, and 5 — with cluster detection, conviction scoring, and historical signal accuracy. Delivered every weekday before US markets open.
Read Today's EditionBuilt for event-driven hedge fund analysts, portfolio managers, sophisticated retail investors, and compliance professionals.
LATEST EDITION
As of April 10, 2026, The Section 16 Desk has identified one of the most lopsided insider days of the year: **seven Elbit Systems (ESLT) executives, led by President and CEO Bezhalel Machlis, sold a combined $61.9 million in open-market shares at $887.40 on April 9**, a price that marks the all-t...
Read full edition →
**The most important signal today is also the quietest: only four genuine open-market purchases hit the tape against nearly $24 million in i...
Read →
Buy/sell ratio crashed to 0.037 — the lowest we've tracked — as insiders shunned open-market purchases while three Sea Ltd C-suite officers ...
Read →
Monday's Form 4 filings paint a **decisively bearish picture** for insider sentiment, with **discretionary selling outpacing open-market pur...
Read →
**Service Properties Trust (SVC)** dominated today's open-market purchase activity with **two directors independently buying shares at $1.20...
Read →
Today's Section 16 filings paint a picture of **institutional housekeeping rather than conviction signaling**, with **zero open-market purch...
Read →
A $5.47 million open-market purchase at Burning Rock Biotech dominates today's insider activity, while Sea Ltd executives receive coordinate...
Read →
**The insider tape is flashing caution today.** With a buy/sell ratio of just **0.20** — well below the long-term historical average of **0....
Read →
Monday's Section 16 insider filings paint a remarkably bullish picture with a buy-to-sell ratio of 6.7x — nearly 20 times the historical 0.3...
Read →
IPerionX CEO Anastasios Arima made the dominant insider signal today with a $1.79 million open-market purchase, the largest single buy in to...
Read →
IPERIONX CEO makes landmark $1.79 million open-market purchase amid elevated VIX environment. Sea Ltd sees coordinated insider selling acros...
Read →
Tempus AI CEO Eric Lefkofsky sold $7.7 million in common stock across six transactions, the single largest insider disposal in today's filin...
Read →Every significant open-market purchase scored by size, insider rank, timing relative to catalysts, and historical signal accuracy.
When 3+ insiders at the same company buy within days, something is happening. We detect and analyze every cluster event.
Aggregate buy/sell ratios by sector reveal where corporate insiders are collectively putting their money — and where they're exiting.
The day's most significant transaction dissected: insider track record, company context, historical parallels, and three scenario analysis.