MarketPeel
Insider Trading Intelligence
Pricing
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DM

David Y. Ma

SE
DIRECTOR · SEA LTD · CIK 0002114135
FILING MIX · LIFETIME0%/100%
BUYS
0
SELLS
40
TOTAL VALUE
$117.18M
COMPANIES
1
ACTIVE SINCE
Mar 2026
HOLDINGS NOW
225,746
AVG SELL PX
$88.37
TRADE KIND
SHOWING 40 / 40
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
40 backtested trades · 8 horizons · 198 pending
Forward-return performance of every backtestable P/S trade by David Y. Ma, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d40+55.00%-0.62%+1.86%-2.48%-1.95%-3.96
14d40+70.00%-2.92%+2.84%-5.75%-5.50%-14.65
30d40+10.00%+3.67%+7.10%-2.91%-2.34%-4.54
60d40(38 pending)+0.00%+10.71%+12.23%-1.51%-1.51%—
90d40(40 pending)——————
180d40(40 pending)——————
1y40(40 pending)——————
2y40(40 pending)——————
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SE · 225,746 shares · as of Apr 21, 2026
0365,469730,9391,096,4081,461,877SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2026
2026
FLOW · 0 buys / 40 sellsCOVERAGE · 2 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
SE
SEA LTD
SALE10b5-1
10b5-1 plan
24,560$89.13$2.19M201,186Apr 21, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
1,411$89.74$126.6K199,775Apr 21, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
28,348$87.16$2.47M275,418Apr 21, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
49,672$88.09$4.38M225,746Apr 21, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
128,226$89.28$11.45M343,939Apr 20, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
40,173$89.93$3.61M303,766Apr 20, 2026Apr 22, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
8,020$90.57$726.4K609,217Apr 17, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
20,720$93.04$1.93M472,165Apr 17, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
76,252$92.34$7.04M492,885Apr 17, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
40,080$91.47$3.67M569,137Apr 17, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
6,299$92.30$581.4K618,280Apr 16, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
83,101$90.40$7.51M648,230Apr 16, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
23,651$91.33$2.16M624,579Apr 16, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
1,043$93.05$97.1K617,237Apr 16, 2026Apr 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
3,192$86.05$274.7K892,172Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
53,174$90.44$4.81M733,360Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
55,185$89.52$4.94M786,534Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
19,731$87.73$1.73M872,441Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
30,722$88.10$2.71M841,719Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
2,029$90.97$184.6K731,331Apr 15, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
20,257$88.05$1.78M969,661Apr 14, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
57,200$85.74$4.90M1,014,883Apr 14, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
48,923$88.79$4.34M920,738Apr 14, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
25,374$89.65$2.27M895,364Apr 14, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
24,965$86.81$2.17M989,918Apr 14, 2026Apr 16, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
27,107$85.31$2.31M1,125,582Apr 13, 2026Apr 14, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
48,785$86.46$4.22M1,076,797Apr 13, 2026Apr 14, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
4,714$87.17$410.9K1,072,083Apr 13, 2026Apr 14, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
75,570$85.62$6.47M1,199,817Apr 10, 2026Apr 14, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
47,128$86.19$4.06M1,152,689Apr 10, 2026Apr 14, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
14,536$85.31$1.24M1,275,387Apr 9, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
8,186$88.36$723.3K1,300,605Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
48,740$87.43$4.26M1,308,791Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
500$91.59$45.8K1,292,612Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
2,689$92.26$248.1K1,289,923Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
38,981$85.66$3.34M1,414,411Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
7,493$89.33$669.3K1,293,112Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
56,880$86.83$4.94M1,357,531Apr 8, 2026Apr 10, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
8,485$86.14$730.9K1,453,392Mar 18, 2026Mar 20, 2026 ↗
SE
SEA LTD
SALE10b5-1
10b5-1 plan
63,950$85.28$5.45M1,461,877Mar 18, 2026Mar 20, 2026 ↗
Other insiders · SE
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About this filer
CIK 0002114135
ROLE
Director
PRIMARY
SE
COMPANIES
1
ACTIVE SINCE
Mar 2026
MARKETPEEL · /INSIDER/0002114135DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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