| Sep 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 205 | $189.09 | $39K@ $189.09 | 16,999 | Form 4 |
| Aug 14, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 47 | — | — | 16,794 | Form 4 |
| Aug 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 227 | $170.35 | $39K@ $170.35 | 16,747 | Form 4 |
| Jul 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 285 | $135.92 | $39K@ $135.92 | 16,520 | Form 4 |
| Jun 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 216 | $179.75 | $39K@ $179.75 | 16,235 | Form 4 |
| May 15, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 49 | — | — | 16,019 | Form 4 |
| May 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 219 | $177.00 | $39K@ $177.00 | 15,970 | Form 4 |
| Apr 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 195 | $198.31 | $39K@ $198.31 | 15,751 | Form 4 |
| Mar 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 182 | $212.98 | $39K@ $212.98 | 15,556 | Form 4 |
| Feb 13, 2026 | ACNChair and CEO | Shares withheld for tax or exercise priceCode F · direct | 80 | $224.11 | $18K@ $224.11 | 15,374 | Form 4 |
| Feb 13, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 199 | — | — | 15,454 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 1,023 | $243.15 | $249K@ $243.15 | 15,255 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 2,251 | $241.77 | $544K@ $241.77 | 16,278 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 1,843 | $240.90 | $444K@ $240.90 | 18,529 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 435 | $239.72 | $104K@ $239.72 | 20,372 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 288 | $238.39 | $69K@ $238.39 | 20,807 | Form 4 |
| Feb 10, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 217 | $236.11 | $51K@ $236.11 | 21,095 | Form 4 |
| Feb 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 162 | $238.73 | $39K@ $238.73 | 21,312 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 131 | $249.75 | $33K@ $249.75 | 21,150 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 403 | $248.70 | $100K@ $248.70 | 21,281 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 384 | $246.98 | $95K@ $246.98 | 21,684 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 232 | $245.75 | $57K@ $245.75 | 22,068 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 362 | $244.50 | $89K@ $244.50 | 22,300 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 1,407 | $242.41 | $341K@ $242.41 | 22,662 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 643 | $240.62 | $155K@ $240.62 | 24,069 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 892 | $240.04 | $214K@ $240.04 | 24,712 | Form 4 |
| Feb 3, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 1,046 | $238.93 | $250K@ $238.93 | 25,604 | Form 4 |
| Feb 1, 2026 | ACNChair and CEO | Shares withheld for tax or exercise priceCode F · direct | 10,696 | $262.22 | $2.8M@ $262.22 | 26,650 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 177 | $289.98 | $51K@ $289.98 | 37,387 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 687 | $289.31 | $199K@ $289.31 | 37,564 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 321 | $288.09 | $92K@ $288.09 | 38,251 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 302 | $287.12 | $87K@ $287.12 | 38,572 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 120 | $285.46 | $34K@ $285.46 | 38,874 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 41 | $281.57 | $12K@ $281.57 | 38,994 | Form 4 |
| Jan 14, 2026 | ACNChair and CEO | Open-market saleCode S · direct | 5 | $276.61 | $1K@ $276.61 | 39,035 | Form 4 |
| Jan 5, 2026 | ACNChair and CEO | Shares withheld for tax or exercise priceCode F · direct | 803 | $263.11 | $211K@ $263.11 | 39,040 | Form 4 |
| Jan 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 3,330 | — | — | 39,843 | Form 4 |
| Jan 5, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 147 | $263.11 | $39K@ $263.11 | 36,513 | Form 4 |
| Jan 1, 2026 | ACNChair and CEO | Grant or awardCode A · direct | 22,253 | — | — | 36,366 | Form 4 |
| Dec 5, 2025 | ACNChair and CEO | Grant or awardCode A · direct | 5,172 | $268.54 | $1.4M@ $268.54 | 14,113 | Form 4 |