Opaleye Management Inc., a 10%+ owner of Sol-Gel Technologies Ltd. (NASDAQ: SLGL), added another open-market purchase to its running tally on September 9, 2026, buying 3,097 shares at $68.70 apiece for a total of $212,779.38. Following the trade, Opaleye’s indirectly held stake stands at 536,876 shares.
The September 9 buy is not an isolated data point. It caps a nine-transaction run of open-market purchases stretching from August 31 through September 9, 2026, during which Opaleye has committed $1,159,818 of its own capital to acquiring SLGL shares. That is a striking pace for a roughly ten-day window, and it places this filing squarely in cluster-buy territory — a designation reserved for situations where an insider makes repeated, deliberate purchases rather than a single one-off trade.
A Pattern That Keeps Building
Sol-Gel Technologies has seen Opaleye’s buying activity escalate steadily since late August. Earlier coverage on this site tracked the entity’s five-day, $2.79 million buying spree that kicked off the stretch, and the pace has continued in the days since. The September 9 purchase, while modest in isolation at just over $212,000, is best understood as the latest increment in a sustained accumulation pattern rather than a standalone event.
What stands out here is not the size of any single transaction but the consistency: nine separate purchases in a ten-day span, each executed at the insider’s own expense on the open market, with no corresponding sales disclosed in this filing. Opaleye’s total position of 536,876 shares, held indirectly, reflects an ownership stake that has grown meaningfully through this specific window of activity alone.
Academic research on insider trading has long noted that clusters of purchases by the same insider — as opposed to isolated trades — tend to correlate with above-average subsequent stock performance, on average and across large samples of companies. That historical pattern is a matter of public record in finance literature; it is not a signal about what will happen next, and this filing does not indicate anything about the insider’s intentions beyond the transactions themselves.
For SLGL watchers, the relevant fact remains the filing itself: a 10%+ owner spending real money, repeatedly, over a short window. Whether this activity continues into subsequent weeks will depend on future Form 4 disclosures, which will determine if the $1,159,818 figure keeps climbing or if the September 9 purchase marks a pause in the streak.
→ See all SLGL coverage on WhoIsBuyingNow
Source: original SEC Form 4 filing.