Chai Nelson has filed 91 insider transactions across 3 companies since January 2023.
Most recent transaction: a grant/award of 565 shares of THERMO FISHER SCIENTIFIC INC. ($TMO) on May 21, 2025.
Activity breakdown: 2 open-market purchases and 2 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 21, 2025 | THERMO FISHER SCIENTIFIC INC. | $TMO | Chai Nelson | Director | A | Common Stock | 565 | $0.00 | 14,817.0000 | 444,000,000 | 3.96% | 0.00% |
| May 15, 2025 | Chubb Ltd | $CB | Chai Nelson | Director | A | Common Shares | 771 | $0.00 | 1,489.0000 | 408,486,435 | 107.38% | 0.00% |
| May 15, 2025 | Chubb Ltd | $CB | Chai Nelson | Director | F | Common Shares | 180 | $292.05 | 1,309.0000 | 408,486,435 | 12.09% | 0.00% |
| Feb. 19, 2025 | THERMO FISHER SCIENTIFIC INC. | $TMO | Chai Nelson | Director | S | Common Stock | 16 | $528.09 | 14,252.0000 | 444,000,000 | 0.11% | 0.00% |
| Nov. 7, 2024 | THERMO FISHER SCIENTIFIC INC. | $TMO | Chai Nelson | Director | P | Common Stock | 16 | $555.89 | 14,264.0000 | 444,000,000 | 0.11% | 0.00% |
| Dec. 9, 2024 | THERMO FISHER SCIENTIFIC INC. | $TMO | Chai Nelson | Director | P | Common Stock | 4 | $535.93 | 14,268.0000 | 444,000,000 | 0.03% | 0.00% |
| May 22, 2024 | THERMO FISHER SCIENTIFIC INC. | $TMO | Chai Nelson | Director | A | Common Stock | 339 | $0.00 | 14,248.0000 | 442,000,000 | 2.44% | 0.00% |
| May 16, 2024 | Chubb Ltd | $CB | Chai Nelson | Not found | A | Common Shares | 718 | $0.00 | 718.0000 | 414,202,568 | 9999.99% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 100,249.0000 | 1,974,928,000 | 3.33% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 18,465.0000 | 1,974,928,000 | 5.55% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 298,906.0000 | 1,974,928,000 | 1.11% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 302,363.0000 | 1,974,928,000 | 1.16% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 303,449.0000 | 1,974,928,000 | 0.36% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $44.71 | 301,777.0000 | 1,974,928,000 | 0.55% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $44.71 | 300,012.0000 | 1,974,928,000 | 0.58% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $44.71 | 299,457.0000 | 1,974,928,000 | 0.18% | 0.00% |
| Oct. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 134,240.0000 | 1,974,928,000 | 2.38% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 295,081.0000 | 1,974,928,000 | 1.12% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3456 | $0.00 | 298,537.0000 | 1,974,928,000 | 1.17% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1087 | $0.00 | 299,624.0000 | 1,974,928,000 | 0.36% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $47.52 | 297,952.0000 | 1,974,928,000 | 0.56% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $47.52 | 296,187.0000 | 1,974,928,000 | 0.59% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $47.52 | 295,632.0000 | 1,974,928,000 | 0.19% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 137,514.0000 | 1,974,928,000 | 2.33% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3456 | $0.00 | 103,706.0000 | 1,974,928,000 | 3.23% | 0.00% |
| Sept. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1087 | $0.00 | 19,551.0000 | 1,974,928,000 | 5.27% | 0.00% |
| Aug. 21, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | S | Common Stock | 100000 | $45.05 | 291,807.0000 | 1,974,928,000 | 25.52% | 0.01% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 391,256.0000 | 1,974,928,000 | 0.84% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 394,713.0000 | 1,974,928,000 | 0.88% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 395,799.0000 | 1,974,928,000 | 0.28% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $43.65 | 394,127.0000 | 1,974,928,000 | 0.42% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $43.65 | 392,362.0000 | 1,974,928,000 | 0.45% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $43.65 | 391,807.0000 | 1,974,928,000 | 0.14% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 140,788.0000 | 1,974,928,000 | 2.27% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 107,162.0000 | 1,974,928,000 | 3.13% | 0.00% |
| Aug. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 20,638.0000 | 1,974,928,000 | 5.00% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3275 | $0.00 | 387,431.0000 | 1,974,928,000 | 0.85% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 390,888.0000 | 1,974,928,000 | 0.89% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 391,974.0000 | 1,974,928,000 | 0.28% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $44.75 | 390,302.0000 | 1,974,928,000 | 0.43% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $44.75 | 388,537.0000 | 1,974,928,000 | 0.45% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $44.75 | 387,982.0000 | 1,974,928,000 | 0.14% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3275 | $0.00 | 144,062.0000 | 1,974,928,000 | 2.22% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 110,619.0000 | 1,974,928,000 | 3.03% | 0.00% |
| July 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 21,724.0000 | 1,974,928,000 | 4.76% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 383,788.0000 | 1,974,928,000 | 0.91% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 384,874.0000 | 1,974,928,000 | 0.28% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 388,148.0000 | 1,974,928,000 | 0.85% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $43.52 | 386,476.0000 | 1,974,928,000 | 0.43% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $43.52 | 384,711.0000 | 1,974,928,000 | 0.46% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $43.52 | 384,156.0000 | 1,974,928,000 | 0.14% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 147,337.0000 | 1,974,928,000 | 2.17% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 114,076.0000 | 1,974,928,000 | 2.94% | 0.00% |
| June 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 22,810.0000 | 1,974,928,000 | 4.54% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 379,963.0000 | 1,974,928,000 | 0.92% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 381,049.0000 | 1,974,928,000 | 0.29% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 384,323.0000 | 1,974,928,000 | 0.86% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $37.44 | 382,651.0000 | 1,974,928,000 | 0.44% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $37.44 | 382,096.0000 | 1,974,928,000 | 0.15% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $37.44 | 380,331.0000 | 1,974,928,000 | 0.46% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 150,611.0000 | 1,974,928,000 | 2.13% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 117,533.0000 | 1,974,928,000 | 2.86% | 0.00% |
| May 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 23,896.0000 | 1,974,928,000 | 4.35% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3274 | $0.00 | 375,954.0000 | 1,974,928,000 | 0.88% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 379,411.0000 | 1,974,928,000 | 0.92% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1087 | $0.00 | 380,498.0000 | 1,974,928,000 | 0.29% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1672 | $31.48 | 378,826.0000 | 1,974,928,000 | 0.44% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $31.48 | 377,061.0000 | 1,974,928,000 | 0.47% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $31.48 | 376,506.0000 | 1,974,928,000 | 0.15% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3274 | $0.00 | 153,885.0000 | 1,974,928,000 | 2.08% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 120,990.0000 | 1,974,928,000 | 2.78% | 0.00% |
| April 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1087 | $0.00 | 24,982.0000 | 1,974,928,000 | 4.17% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 373,914.0000 | 1,974,928,000 | 0.93% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 375,000.0000 | 1,974,928,000 | 0.29% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 555 | $32.73 | 374,445.0000 | 1,974,928,000 | 0.15% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1765 | $32.73 | 372,680.0000 | 1,974,928,000 | 0.47% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 124,447.0000 | 1,974,928,000 | 2.70% | 0.00% |
| March 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 26,069.0000 | 1,974,928,000 | 4.00% | 0.00% |
| March 1, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | A | Restricted Stock Units | 157159 | $0.00 | 157,159.0000 | 1,974,928,000 | 9999.99% | 0.01% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3456 | $0.00 | 371,009.0000 | 1,974,928,000 | 0.94% | 0.00% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 372,095.0000 | 1,974,928,000 | 0.29% | 0.00% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1246 | $36.22 | 370,849.0000 | 1,974,928,000 | 0.33% | 0.00% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 392 | $36.22 | 370,457.0000 | 1,974,928,000 | 0.11% | 0.00% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3456 | $0.00 | 127,904.0000 | 1,974,928,000 | 2.63% | 0.00% |
| Feb. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 27,155.0000 | 1,974,928,000 | 3.85% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 3457 | $0.00 | 368,332.0000 | 1,974,928,000 | 0.95% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Common Stock | 1086 | $0.00 | 369,418.0000 | 1,974,928,000 | 0.29% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 1415 | $29.44 | 368,003.0000 | 1,974,928,000 | 0.38% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | F | Common Stock | 450 | $29.44 | 367,553.0000 | 1,974,928,000 | 0.12% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 3457 | $0.00 | 131,360.0000 | 1,974,928,000 | 2.56% | 0.00% |
| Jan. 16, 2023 | Uber Technologies, Inc | $UBER | Chai Nelson | Chief Financial Officer | M | Restricted Stock Units | 1086 | $0.00 | 28,241.0000 | 1,974,928,000 | 3.70% | 0.00% |