Summary
Updated Aug 31, 2026
Jacob Thaysen is Chief Executive Officer, Director of ILLUMINA, INC. (ILMN). 6 SEC Form 4 filings on record going back to 2024, most recently on 9 March 2026. Most recent open-market trade: bought $8K of ILMN on 14 May 2025. Lifetime open-market purchases: $999K. Historical track record: 5/5 stars across 7 tracked purchases.
Recent Transactions
13Every recent SEC Form 4 transaction Jacob Thaysen has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★★★★★ (5/5) |
| Total purchases tracked | 7 |
| Purchases with forward-return data | 7 |
| 30-day win rate | 100% |
| 90-day win rate | 100% |
| Avg 5-day return | +2.38% |
| Avg 30-day return | +8.36% |
| Avg 90-day return | +16.98% |
| Best 30-day return | +9.75% |
Trading Pattern
InsiderAlpha's records for Jacob Thaysen go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $143K (7 buys totaling $999K). The largest single buy on record is $399K of ILMN in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Jacob Thaysen files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Keith A. Meister - $533.93M of ILMN open-market activity in the last 12 months
- Scott M. Davies - $531K of ILMN open-market activity in the last 12 months
- Patricia Leckman - $530K of ILMN open-market activity in the last 12 months
- Scott D. Ericksen - $305K of ILMN open-market activity in the last 12 months
- Christensen Jakob Wedel - $295K of ILMN open-market activity in the last 12 months
- Scott Gottlieb - $85K of ILMN open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Jacob Thaysen?
Jacob Thaysen is a corporate insider, tracked as Chief Executive Officer, Director of ILLUMINA, INC. (ILMN). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jacob Thaysen last file a Form 4?
The most recent primary Form 4 on record is dated 9 March 2026, one of 6 filings going back to 2024.
Has Jacob Thaysen been buying or selling stock?
Recorded transactions: 7 open-market purchases ($999K) and 0 open-market sales across all tracked filings.
How accurate is Jacob Thaysen's historical track record?
Across 7 tracked purchases, Jacob Thaysen averaged +8.4% avg 30-day return with a 100% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
Where can I see all of Jacob Thaysen's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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