SHAK
+$140K
2,570 sh @ $54
Walker Tristan
Director, 10% Owner, Chief Executive Officer, Chief Operations Officer, Corporate Controller, Chief Financial Officer · SEC CIK 1620533
Insider at
SHAK Shake Shack Inc.
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Buy track record
How this insider's open-market purchases have performed0%
of buys now in profit
0 up · 9 down
Avg return since buy−3.6%
Median return−3.6%
Best trade−3.6%
Worst trade−3.6%
Buys scored9
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| May 15, 2026 | SHAK | $60 | $494.4K | NEW | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $6.1K | +1.2% | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $61.3K | +22% | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $61.3K | NEW | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $47.9K | NEW | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $13.5K | NEW | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $61 | $249.9K | +44% | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $60 | $301.9K | +6.9% | — | — | — | — | −3.6% | |
| May 15, 2026 | SHAK | $62 | $2M | +9.3% | — | — | — | — | −3.6% |
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 9 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$3.23M
9 trades
Open-market sells
$10.73M
24 trades
Net flow
−$7.49M
Net selling
Total filings
63
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstSHAK
+$345K
6,333 sh @ $54
SHAK
+$250K
4,589 sh @ $54
SHAK
+$150K
2,754 sh @ $54
SHAK
+$157.5K
2,891 sh @ $54
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SHAK
+$220K
4,039 sh @ $54
SHAK
+$245.1K
4,498 sh @ $54
SHAK
−$231.2K
3,687 sh @ $63
SHAK
−$144.6K
2,305 sh @ $63
SHAK
Silverman Josh, SHAK's Director, spent $494.4K of their own money on 8,190 shares at $60, opening a brand-new position.
+$494.4K
8,190 sh @ $60
SHAK
Silverman Josh, SHAK's Director, spent $6.1K of their own money on 100 shares at $61, growing their stake 1%.
+$6.1K
100 sh @ $61
SHAK
Flug Jeffrey, SHAK's 10% owner, spent $61.3K of their own money on 1,000 shares at $61, growing their stake 22%.
+$61.3K
1,000 sh @ $61
SHAK
Chapman Charles J Iii, SHAK's Director, spent $61.3K of their own money on 1,000 shares at $61, opening a brand-new position.
+$61.3K
1,000 sh @ $61
SHAK
Chapman Charles J Iii, SHAK's Director, spent $47.9K of their own money on 780 shares at $61, opening a brand-new position.
+$47.9K
780 sh @ $61
SHAK
Chapman Charles J Iii, SHAK's Director, spent $13.5K of their own money on 220 shares at $61, opening a brand-new position.
+$13.5K
220 sh @ $61
SHAK
Balbale Sumaiya, SHAK's Director, spent $249.9K of their own money on 4,068 shares at $61, growing their stake 44%.
+$249.9K
4,068 sh @ $61
SHAK
Lynch Robert, SHAK's CEO, spent $301.9K of their own money on 5,000 shares at $60, growing their stake 7%.
+$301.9K
5,000 sh @ $60
SHAK
Meyer Daniel Harris, SHAK's 10% owner, spent $2M of their own money on 32,258 shares at $62, growing their stake 9%.
+$2M
32,258 sh @ $62
SHAK
−$26.4K
258 sh @ $102
SHAK
−$21.1K
225 sh @ $94
SHAK
+$0
267 sh
SHAK
−$16.6K
173 sh @ $96
SHAK
−$12.7K
132 sh @ $96
SHAK
−$14.5K
151 sh @ $96
SHAK
+$0
26,685 sh
SHAK
−$185.6K
1,933 sh @ $96
SHAK
+$0
6,397 sh
SHAK
−$32.4K
337 sh @ $96
SHAK
−$19.8K
200 sh @ $99
SHAK
+$69.3K
2,003 sh @ $35
Frequently asked questions
How is Walker Tristan'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 Walker Tristan'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.