Dhiraj Mallick
CIK 2039572 · View on SEC EDGAR ↗
First SEC filing: May 13, 2026 · Latest: May 13, 2026
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Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 18, 2026 | CBRS | S | 2 | $214.85 | $430 | 158,887 Direct | 0.00% | Disposed | -5.0% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 1,937 | $215.67 | $417,753 | 156,950 Direct | -1.22% | Disposed | -5.3% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 3,305 | $216.40 | $715,202 | 153,645 Direct | -2.11% | Disposed | -5.7% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 2,458 | $217.58 | $534,812 | 151,187 Direct | -1.60% | Disposed | -6.2% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 3,055 | $218.54 | $667,640 | 148,132 Direct | -2.02% | Disposed | -6.6% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 3,465 | $219.58 | $760,845 | 144,667 Direct | -2.34% | Disposed | -7.0% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 6,810 | $220.43 | $1,501,128 | 137,857 Direct | -4.71% | Disposed | -7.4% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 6,237 | $221.47 | $1,381,308 | 131,620 Direct | -4.52% | Disposed | -7.8% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 2,925 | $222.42 | $650,578 | 128,695 Direct | -2.22% | Disposed | -8.2% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 900 | $223.54 | $201,186 | 127,795 Direct | -0.70% | Disposed | -8.7% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 369 | $224.52 | $82,848 | 127,426 Direct | -0.29% | Disposed | -9.1% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 613 | $225.51 | $138,238 | 126,813 Direct | -0.48% | Disposed | -9.5% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 837 | $226.46 | $189,547 | 125,976 Direct | -0.66% | Disposed | -9.9% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 635 | $227.37 | $144,380 | 125,341 Direct | -0.50% | Disposed | -10.2% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 173 | $228.53 | $39,536 | 125,168 Direct | -0.14% | Disposed | -10.7% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 268 | $229.46 | $61,495 | 124,900 Direct | -0.21% | Disposed | -11.0% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 86 | $230.67 | $19,838 | 124,814 Direct | -0.07% | Disposed | -11.5% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 444 | $231.57 | $102,817 | 124,370 Direct | -0.36% | Disposed | -11.8% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 506 | $232.62 | $117,706 | 123,864 Direct | -0.41% | Disposed | -12.2% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 410 | $233.31 | $95,657 | 123,454 Direct | -0.33% | Disposed | -12.5% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 1,078 | $234.47 | $252,759 | 122,376 Direct | -0.87% | Disposed | -12.9% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 550 | $235.50 | $129,525 | 121,826 Direct | -0.45% | Disposed | -13.3% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 371 | $236.43 | $87,716 | 121,455 Direct | -0.30% | Disposed | -13.7% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 21 | $237.23 | $4,982 | 121,434 Direct | -0.02% | Disposed | -14.0% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 17 | $238.78 | $4,059 | 121,417 Direct | -0.01% | Disposed | -14.5% (price as of 2026-08-21) |
| Aug. 18, 2026 | CBRS | S | 1,417 | $240.01 | $340,094 | 120,000 Direct | -1.17% | Disposed | -14.9% (price as of 2026-08-21) |
| June 30, 2026 | CBRS | S | 10,000 | $206.51 | $2,065,100 | 0 Direct | -100.00% | Disposed | -1.2% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 800 | $181.62 | $145,296 | 0 Direct | -100.00% | Disposed | 12.4% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 1,200 | $180.50 | $216,600 | 800 Direct | -60.00% | Disposed | 13.1% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 1,100 | $179.67 | $197,637 | 2,000 Direct | -35.48% | Disposed | 13.6% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 200 | $178.12 | $35,624 | 3,100 Direct | -6.06% | Disposed | 14.6% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 200 | $177.23 | $35,446 | 3,300 Direct | -5.71% | Disposed | 15.2% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 200 | $175.94 | $35,188 | 3,500 Direct | -5.41% | Disposed | 16.0% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 600 | $174.70 | $104,820 | 3,700 Direct | -13.95% | Disposed | 16.8% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 11,761 | $173.65 | $2,042,298 | 4,300 Direct | -73.23% | Disposed | 17.6% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 839 | $172.78 | $144,962 | 16,061 Direct | -4.96% | Disposed | 18.1% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 300 | $171.45 | $51,435 | 16,900 Direct | -1.74% | Disposed | 19.1% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 100 | $169.76 | $16,976 | 17,200 Direct | -0.58% | Disposed | 20.2% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 700 | $169.07 | $118,349 | 17,300 Direct | -3.89% | Disposed | 20.7% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 400 | $167.76 | $67,104 | 18,000 Direct | -2.17% | Disposed | 21.7% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 400 | $166.62 | $66,648 | 18,400 Direct | -2.13% | Disposed | 22.5% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 300 | $165.09 | $49,527 | 18,800 Direct | -1.57% | Disposed | 23.7% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 400 | $163.90 | $65,560 | 19,100 Direct | -2.05% | Disposed | 24.5% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 300 | $162.75 | $48,825 | 19,500 Direct | -1.52% | Disposed | 25.4% (price as of 2026-08-21) |
| June 26, 2026 | CBRS | S | 200 | $161.46 | $32,292 | 19,800 Direct | -1.00% | Disposed | 26.4% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 100 | $187.90 | $18,790 | 20,000 Direct | -0.50% | Disposed | 8.6% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,752 | $186.85 | $327,361 | 20,100 Direct | -8.02% | Disposed | 9.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,618 | $186.23 | $301,320 | 21,852 Direct | -6.89% | Disposed | 9.6% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 7,282 | $185.19 | $1,348,554 | 23,470 Direct | -23.68% | Disposed | 10.2% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,074 | $184.30 | $197,938 | 30,752 Direct | -3.37% | Disposed | 10.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 138 | $182.50 | $25,185 | 31,826 Direct | -0.43% | Disposed | 11.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 330 | $181.17 | $59,786 | 31,964 Direct | -1.02% | Disposed | 12.7% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 606 | $180.19 | $109,195 | 32,294 Direct | -1.84% | Disposed | 13.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 230 | $178.92 | $41,152 | 32,900 Direct | -0.69% | Disposed | 14.1% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 184 | $175.61 | $32,312 | 33,130 Direct | -0.55% | Disposed | 16.2% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 138 | $173.71 | $23,972 | 33,314 Direct | -0.41% | Disposed | 17.5% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 338 | $172.85 | $58,423 | 33,452 Direct | -1.00% | Disposed | 18.1% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 2,560 | $172.02 | $440,371 | 33,790 Direct | -7.04% | Disposed | 18.7% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 4,192 | $171.10 | $717,251 | 36,350 Direct | -10.34% | Disposed | 19.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 484 | $170.17 | $82,362 | 40,542 Direct | -1.18% | Disposed | 20.0% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 2,200 | $168.83 | $371,426 | 41,026 Direct | -5.09% | Disposed | 20.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 4,106 | $167.78 | $688,905 | 43,226 Direct | -8.67% | Disposed | 21.7% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 7,399 | $166.82 | $1,234,301 | 47,332 Direct | -13.52% | Disposed | 22.4% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 2,198 | $166.05 | $364,978 | 54,731 Direct | -3.86% | Disposed | 22.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,051 | $164.81 | $173,215 | 56,929 Direct | -1.81% | Disposed | 23.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 690 | $163.62 | $112,898 | 57,980 Direct | -1.18% | Disposed | 24.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 276 | $162.24 | $44,778 | 58,670 Direct | -0.47% | Disposed | 25.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 648 | $185.21 | $120,016 | 58,946 Direct | -1.09% | Disposed | 10.2% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,026 | $184.25 | $189,040 | 59,594 Direct | -1.69% | Disposed | 10.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 162 | $182.50 | $29,565 | 60,620 Direct | -0.27% | Disposed | 11.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 270 | $181.23 | $48,932 | 60,782 Direct | -0.44% | Disposed | 12.6% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 594 | $180.18 | $107,027 | 61,052 Direct | -0.96% | Disposed | 13.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 270 | $178.92 | $48,308 | 61,646 Direct | -0.44% | Disposed | 14.1% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 216 | $175.61 | $37,932 | 61,916 Direct | -0.35% | Disposed | 16.2% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 324 | $173.45 | $56,198 | 62,132 Direct | -0.52% | Disposed | 17.7% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 594 | $171.74 | $102,014 | 62,456 Direct | -0.94% | Disposed | 18.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 162 | $170.41 | $27,606 | 63,050 Direct | -0.26% | Disposed | 19.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 918 | $169.22 | $155,344 | 63,212 Direct | -1.43% | Disposed | 20.6% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 885 | $168.25 | $148,901 | 64,130 Direct | -1.36% | Disposed | 21.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 1,461 | $166.98 | $243,958 | 65,015 Direct | -2.20% | Disposed | 22.3% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 837 | $166.04 | $138,975 | 66,476 Direct | -1.24% | Disposed | 22.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 998 | $164.73 | $164,401 | 67,313 Direct | -1.46% | Disposed | 23.9% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 810 | $163.62 | $132,532 | 68,311 Direct | -1.17% | Disposed | 24.8% (price as of 2026-08-21) |
| June 25, 2026 | CBRS | S | 324 | $162.24 | $52,566 | 69,121 Direct | -0.47% | Disposed | 25.8% (price as of 2026-08-21) |
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.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Aug. 18, 2026 | CBRS | Class B Common Stock | Class A Common Stock (158,889) | — | — | 158,889 | Disposed |
| June 30, 2026 | CBRS | Class B Common Stock | Class A Common Stock (10,000) | — | — | 10,000 | Disposed |
| June 25, 2026 | CBRS | Class B Common Stock | Class A Common Stock (69,445) | — | — | 69,445 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| May 13, 2026 | CBRS | Class A Common Stock | — | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (367,370) | 367,370 | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (200,000) | 200,000 | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (100,000) | 100,000 | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (300,000) | 300,000 | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (200,000) | 200,000 | Direct |
| May 13, 2026 | CBRS | Stock Option→ Class A Common Stock (105,000) | 105,000 | Direct |