Crystal Adam

President, R&D, See Remarks, Chief Medical Officer · SEC CIK 1825445
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$7.37M
26 trades
Net flow
−$7.37M
Net selling
Total filings
45
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed 1w ago ΔOwn −4.3%

Crystal Adam sold $136.6K of TNGX, trimming their stake 4%.

−$136.6K
6,140 sh @ $22
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed 1w ago ΔOwn −15%

Crystal Adam sold $480.9K of TNGX, trimming their stake 15%.

−$480.9K
20,860 sh @ $23
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed May 5, 2026 ΔOwn −18%

Crystal Adam sold $548.9K of TNGX, trimming their stake 18%.

−$548.9K
25,900 sh @ $21
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TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed May 5, 2026 ΔOwn −0.9%

Crystal Adam sold $24.2K of TNGX, trimming their stake 1%.

−$24.2K
1,100 sh @ $22
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Apr 16, 2026 ΔOwn −25%

Crystal Adam sold $961.5K of TNGX, trimming their stake 25%.

−$961.5K
38,460 sh @ $25
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Apr 2, 2026 ΔOwn −19%

Crystal Adam sold $572.5K of TNGX, trimming their stake 19%.

−$572.5K
27,000 sh @ $21
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Mar 27, 2026 ΔOwn −9.6%

Crystal Adam sold $241.3K of TNGX, trimming their stake 10%.

−$241.3K
12,000 sh @ $20
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Mar 9, 2026 ΔOwn −15%

Crystal Adam sold $303.8K of TNGX, trimming their stake 15%.

−$303.8K
20,251 sh @ $15
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Feb 27, 2026 ΔOwn −29%

Crystal Adam sold $694.2K of TNGX, trimming their stake 29%.

−$694.2K
54,345 sh @ $13
TNGX
Sell Crystal Adam · President, R&D · Open-market sale · filed Feb 4, 2026 ΔOwn −8.9%

Crystal Adam sold $223.7K of TNGX, trimming their stake 9%.

−$223.7K
18,251 sh @ $12
TNGX
Sell Crystal Adam · See Remarks · Open-market sale · filed Feb 6, 2025 ΔOwn −4.2%

Crystal Adam sold $21.7K of TNGX, trimming their stake 4%.

−$21.7K
6,851 sh @ $3
TNGX
Sell Crystal Adam · See Remarks · Open-market sale · filed Feb 6, 2025 ΔOwn −4.3%

Crystal Adam sold $22.2K of TNGX, trimming their stake 4%.

−$22.2K
7,432 sh @ $3
TNGX
Sell Crystal Adam · See Remarks · Open-market sale · filed Feb 8, 2024 ΔOwn −3.3%

Crystal Adam sold $51.5K of TNGX, trimming their stake 3%.

−$51.5K
4,083 sh @ $13
TNGX
Sell Crystal Adam · See Remarks · Open-market sale · filed Feb 8, 2024 ΔOwn −3.4%

Crystal Adam sold $53.9K of TNGX, trimming their stake 3%.

−$53.9K
4,288 sh @ $13
TNGX
Sell Crystal Adam · See Remarks · Open-market sale · filed Nov 2, 2023 ΔOwn −8.5%

Crystal Adam sold $63K of TNGX, trimming their stake 8%.

−$63K
7,507 sh @ $8
CCCC
Sell Crystal Adam · Chief Medical Officer · Open-market sale · filed Jan 5, 2022 ΔOwn −46%

Crystal Adam sold $440.5K of CCCC, trimming their stake 46%.

−$440.5K
13,946 sh @ $32

Frequently asked questions

How is Crystal Adam'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 Crystal Adam'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.