David Y Ma
CIK 2114135 · View on SEC EDGAR ↗
Insider
First SEC filing: March 18, 2026 · Latest: March 18, 2026
On this page
Insider at
Insider transactions
0 buys (P)
40 sells (S)
Net:
$-117,179,100
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 21, 2026 | SE | S 10b5-1 | 1,411 | $89.74 | $126,623 | 199,775 Indirect | -0.70% | Disposed | 31.0% (price as of 2026-08-20) |
| April 21, 2026 | SE | S 10b5-1 | 24,560 | $89.13 | $2,189,033 | 201,186 Indirect | -10.88% | Disposed | 31.9% (price as of 2026-08-20) |
| April 21, 2026 | SE | S 10b5-1 | 49,672 | $88.09 | $4,375,606 | 225,746 Indirect | -18.04% | Disposed | 33.4% (price as of 2026-08-20) |
| April 21, 2026 | SE | S 10b5-1 | 28,348 | $87.16 | $2,470,812 | 275,418 Indirect | -9.33% | Disposed | 34.9% (price as of 2026-08-20) |
| April 20, 2026 | SE | S 10b5-1 | 40,173 | $89.93 | $3,612,758 | 303,766 Indirect | -11.68% | Disposed | 30.7% (price as of 2026-08-20) |
| April 20, 2026 | SE | S 10b5-1 | 128,226 | $89.28 | $11,448,017 | 343,939 Indirect | -27.16% | Disposed | 31.7% (price as of 2026-08-20) |
| April 17, 2026 | SE | S 10b5-1 | 20,720 | $93.04 | $1,927,789 | 472,165 Indirect | -4.20% | Disposed | 26.3% (price as of 2026-08-20) |
| April 17, 2026 | SE | S 10b5-1 | 76,252 | $92.34 | $7,041,110 | 492,885 Indirect | -13.40% | Disposed | 27.3% (price as of 2026-08-20) |
| April 17, 2026 | SE | S 10b5-1 | 40,080 | $91.47 | $3,666,118 | 569,137 Indirect | -6.58% | Disposed | 28.5% (price as of 2026-08-20) |
| April 17, 2026 | SE | S 10b5-1 | 8,020 | $90.57 | $726,371 | 609,217 Indirect | -1.30% | Disposed | 29.8% (price as of 2026-08-20) |
| April 16, 2026 | SE | S 10b5-1 | 1,043 | $93.05 | $97,051 | 617,237 Indirect | -0.17% | Disposed | 26.3% (price as of 2026-08-20) |
| April 16, 2026 | SE | S 10b5-1 | 6,299 | $92.30 | $581,398 | 618,280 Indirect | -1.01% | Disposed | 27.4% (price as of 2026-08-20) |
| April 16, 2026 | SE | S 10b5-1 | 23,651 | $91.33 | $2,160,046 | 624,579 Indirect | -3.65% | Disposed | 28.7% (price as of 2026-08-20) |
| April 16, 2026 | SE | S 10b5-1 | 83,101 | $90.40 | $7,512,330 | 648,230 Indirect | -11.36% | Disposed | 30.0% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 2,029 | $90.97 | $184,578 | 731,331 Indirect | -0.28% | Disposed | 29.2% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 53,174 | $90.44 | $4,809,057 | 733,360 Indirect | -6.76% | Disposed | 30.0% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 55,185 | $89.52 | $4,940,161 | 786,534 Indirect | -6.56% | Disposed | 31.3% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 30,722 | $88.10 | $2,706,608 | 841,719 Indirect | -3.52% | Disposed | 33.4% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 19,731 | $87.73 | $1,731,001 | 872,441 Indirect | -2.21% | Disposed | 34.0% (price as of 2026-08-20) |
| April 15, 2026 | SE | S 10b5-1 | 3,192 | $86.05 | $274,672 | 892,172 Indirect | -0.36% | Disposed | 36.6% (price as of 2026-08-20) |
| April 14, 2026 | SE | S 10b5-1 | 25,374 | $89.65 | $2,274,779 | 895,364 Indirect | -2.76% | Disposed | 31.1% (price as of 2026-08-20) |
| April 14, 2026 | SE | S 10b5-1 | 48,923 | $88.79 | $4,343,873 | 920,738 Indirect | -5.05% | Disposed | 32.4% (price as of 2026-08-20) |
| April 14, 2026 | SE | S 10b5-1 | 20,257 | $88.05 | $1,783,629 | 969,661 Indirect | -2.05% | Disposed | 33.5% (price as of 2026-08-20) |
| April 14, 2026 | SE | S 10b5-1 | 24,965 | $86.81 | $2,167,212 | 989,918 Indirect | -2.46% | Disposed | 35.4% (price as of 2026-08-20) |
| April 14, 2026 | SE | S 10b5-1 | 57,200 | $85.74 | $4,904,328 | 1,014,883 Indirect | -5.34% | Disposed | 37.1% (price as of 2026-08-20) |
| April 13, 2026 | SE | S 10b5-1 | 4,714 | $87.17 | $410,919 | 1,072,083 Indirect | -0.44% | Disposed | 34.9% (price as of 2026-08-20) |
| April 13, 2026 | SE | S 10b5-1 | 48,785 | $86.46 | $4,217,951 | 1,076,797 Indirect | -4.33% | Disposed | 36.0% (price as of 2026-08-20) |
| April 13, 2026 | SE | S 10b5-1 | 27,107 | $85.31 | $2,312,498 | 1,125,582 Indirect | -2.35% | Disposed | 37.8% (price as of 2026-08-20) |
| April 10, 2026 | SE | S 10b5-1 | 47,128 | $86.19 | $4,061,962 | 1,152,689 Indirect | -3.93% | Disposed | 36.4% (price as of 2026-08-20) |
| April 10, 2026 | SE | S 10b5-1 | 75,570 | $85.62 | $6,470,303 | 1,199,817 Indirect | -5.93% | Disposed | 37.3% (price as of 2026-08-20) |
| April 9, 2026 | SE | S 10b5-1 | 14,536 | $85.31 | $1,240,066 | 1,275,387 Indirect | -1.13% | Disposed | 37.8% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 2,689 | $92.26 | $248,087 | 1,289,923 Indirect | -0.21% | Disposed | 27.4% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 500 | $91.59 | $45,795 | 1,292,612 Indirect | -0.04% | Disposed | 28.3% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 7,493 | $89.33 | $669,350 | 1,293,112 Indirect | -0.58% | Disposed | 31.6% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 8,186 | $88.36 | $723,315 | 1,300,605 Indirect | -0.63% | Disposed | 33.0% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 48,740 | $87.43 | $4,261,338 | 1,308,791 Indirect | -3.59% | Disposed | 34.5% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 56,880 | $86.83 | $4,938,890 | 1,357,531 Indirect | -4.02% | Disposed | 35.4% (price as of 2026-08-20) |
| April 8, 2026 | SE | S 10b5-1 | 38,981 | $85.66 | $3,339,112 | 1,414,411 Indirect | -2.68% | Disposed | 37.2% (price as of 2026-08-20) |
| March 18, 2026 | SE | S 10b5-1 | 8,485 | $86.14 | $730,898 | 1,453,392 Indirect | -0.58% | Disposed | 36.5% (price as of 2026-08-20) |
| March 18, 2026 | SE | S 10b5-1 | 63,950 | $85.28 | $5,453,656 | 1,461,877 Indirect | -4.19% | Disposed | 37.8% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.