Thaysen Jacob

Director, Chief Executive Officer, Sr. Vice President, Sr Vice President · SEC CIK 1625263
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Buy track record

How this insider's open-market purchases have performed
100%
of buys now in profit
10 up · 0 down
Avg return since buy+81.4%
Median return+103.8%
Best trade+107.0%
Worst trade+26.1%
Buys scored10
Average return by holding period — separates good entry timing from riding one long winner
After 1 month +6.1% 100% won · 10 trades
After 3 months +9.3% 70% won · 10 trades
After 6 months +34.0% 70% won · 10 trades
After 12 months +47.0% 70% won · 10 trades
DateCompany90d trendBuy priceValueΔOwn1M3M6M12MTo date
May 13, 2025 ILMN $81 $399.1K +6.4% +8.3% +25.9% +49.4% +80.6% +107.0%
May 13, 2025 ILMN $82 $65.6K +1.0% +8.3% +25.9% +49.4% +80.6% +107.0%
May 13, 2025 ILMN $82 $8.2K +0.1% +8.3% +25.9% +49.4% +80.6% +107.0%
May 12, 2025 ILMN $80 $95.6K +1.7% +8.0% +19.4% +49.5% +78.6% +103.8%
May 12, 2025 ILMN $81 $299.4K +5.1% +8.0% +19.4% +49.5% +78.6% +103.8%
May 12, 2025 ILMN $82 $114.2K +1.8% +8.0% +19.4% +49.5% +78.6% +103.8%
May 12, 2025 ILMN $83 $16.5K +0.3% +8.0% +19.4% +49.5% +78.6% +103.8%
Feb 22, 2024 ILMN $135 $686K +68% +1.2% −20.8% −1.9% −28.7% +26.1%
Feb 22, 2024 ILMN $136 $210.7K +12% +1.2% −20.8% −1.9% −28.7% +26.1%
Feb 22, 2024 ILMN $137 $94.9K +4.9% +1.2% −20.8% −1.9% −28.7% +26.1%
How this is calculated. We score only open-market purchases (SEC code P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 10 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$1.99M
10 trades
Open-market sells
$6.58M
6 trades
Net flow
−$4.58M
Net selling
Total filings
68
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
ILMN
Grant/award Thaysen Jacob · Director, Chief Executive Officer · Grant/award · filed Mar 9, 2026 ΔOwn +31%
+$3.3M
25,734 sh @ $128
ILMN
Tax withholding Thaysen Jacob · Director, Chief Executive Officer · Tax withholding · filed Feb 18, 2026 ΔOwn −7.3%
−$762.4K
6,544 sh @ $117
ILMN
Option exercise Thaysen Jacob · Director, Chief Executive Officer · Option exercise · filed Feb 17, 2026 ΔOwn +16%
+$0
13,264 sh
ILMN
Tax withholding Thaysen Jacob · Director, Chief Executive Officer · Tax withholding · filed Feb 17, 2026 ΔOwn −5.7%
−$626K
5,470 sh @ $114
ILMN
Tax withholding Thaysen Jacob · Director, Chief Executive Officer · Tax withholding · filed Oct 7, 2025 ΔOwn −1.6%
−$131.4K
1,301 sh @ $101
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ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +6.4%

Thaysen Jacob, ILMN's CEO, spent $399.1K of their own money on 4,946 shares at $81, growing their stake 6%.

+$399.1K
4,946 sh @ $81
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +1.0%

Thaysen Jacob, ILMN's CEO, spent $65.6K of their own money on 804 shares at $82, growing their stake 1%.

+$65.6K
804 sh @ $82
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +0.1%

Thaysen Jacob, ILMN's CEO, spent $8.2K of their own money on 100 shares at $82.

+$8.2K
100 sh @ $82
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +1.7%

Thaysen Jacob, ILMN's CEO, spent $95.6K of their own money on 1,200 shares at $80, growing their stake 2%.

+$95.6K
1,200 sh @ $80
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +5.1%

Thaysen Jacob, ILMN's CEO, spent $299.4K of their own money on 3,700 shares at $81, growing their stake 5%.

+$299.4K
3,700 sh @ $81
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +1.8%

Thaysen Jacob, ILMN's CEO, spent $114.2K of their own money on 1,400 shares at $82, growing their stake 2%.

+$114.2K
1,400 sh @ $82
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed May 14, 2025 ΔOwn +0.3%

Thaysen Jacob, ILMN's CEO, spent $16.5K of their own money on 200 shares at $83.

+$16.5K
200 sh @ $83
ILMN
Grant/award Thaysen Jacob · Director, Chief Executive Officer · Grant/award · filed Mar 7, 2025 ΔOwn +68%
+$0
28,709 sh
ILMN
Tax withholding Thaysen Jacob · Director, Chief Executive Officer · Tax withholding · filed Feb 19, 2025 ΔOwn −4.6%
−$208.6K
2,064 sh @ $101
ILMN
Tax withholding Thaysen Jacob · Director, Chief Executive Officer · Tax withholding · filed Oct 8, 2024 ΔOwn −2.0%
−$128.6K
914 sh @ $141
ILMN
Grant/award Thaysen Jacob · Director, Chief Executive Officer · Grant/award · filed Mar 7, 2024 ΔOwn +150%
+$0
22,276 sh
ILMN
Grant/award Thaysen Jacob · Director, Chief Executive Officer · Grant/award · filed Mar 7, 2024 ΔOwn +20%
+$0
7,426 sh
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed Feb 26, 2024 ΔOwn +68%

Thaysen Jacob, ILMN's CEO, spent $686K of their own money on 5,085 shares at $135, growing their stake 68%.

+$686K
5,085 sh @ $135
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed Feb 26, 2024 ΔOwn +12%

Thaysen Jacob, ILMN's CEO, spent $210.7K of their own money on 1,553 shares at $136, growing their stake 12%.

+$210.7K
1,553 sh @ $136
ILMN
Buy Thaysen Jacob · Director, Chief Executive Officer · Open-market purchase · filed Feb 26, 2024 ΔOwn +4.9%

Thaysen Jacob, ILMN's CEO, spent $94.9K of their own money on 692 shares at $137, growing their stake 5%.

+$94.9K
692 sh @ $137
ILMN
Grant/award Thaysen Jacob · Director, Chief Executive Officer · Grant/award · filed Oct 10, 2023 ΔOwn NEW
+$0
7,531 sh
A
Sell Thaysen Jacob · Sr. Vice President · Open-market sale · filed Dec 2, 2022 ΔOwn −3.7%

Thaysen Jacob sold $503.5K of A, trimming their stake 4%.

−$503.5K
3,235 sh @ $156
A
Sell Thaysen Jacob · Sr. Vice President · Open-market sale · filed Dec 2, 2022 ΔOwn −10.0%

Thaysen Jacob sold $1.5M of A, trimming their stake 10%.

−$1.5M
9,700 sh @ $155

Frequently asked questions

How is Thaysen Jacob's win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from Thaysen Jacob's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.