Alexander L Johnson
Insider
First SEC filing: July 20, 2021 · Latest: July 20, 2021
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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. 21, 2024 | CDNA | M | 21,557 | $23.48 | $506,158 | 306,540 Direct | +7.56% | Acquired | 171.7% (price as of 2026-10-06) |
| Aug. 21, 2024 | CDNA | S | 21,557 | $32.58 | $702,327 | 284,983 Direct | -7.03% | Disposed | 95.8% (price as of 2026-10-06) |
| Aug. 21, 2024 | CDNA | M | 21,557 | · | · | 49,569 Direct | -30.31% | Disposed | (price as of 2026-10-06) |
| Aug. 20, 2024 | CDNA | M | 39,466 | $23.48 | $926,662 | 324,449 Direct | +13.85% | Acquired | 171.7% (price as of 2026-10-06) |
| Aug. 20, 2024 | CDNA | S | 39,466 | $33.17 | $1,309,087 | 284,983 Direct | -12.16% | Disposed | 92.3% (price as of 2026-10-06) |
| Aug. 20, 2024 | CDNA | M | 39,466 | · | · | 71,126 Direct | -35.69% | Disposed | (price as of 2026-10-06) |
| Aug. 19, 2024 | CDNA | S | 8,000 | $33.53 | $268,240 | 311,214 Direct | -2.51% | Disposed | 90.2% (price as of 2026-10-06) |
| Aug. 19, 2024 | CDNA | S | 2,683 | $33.83 | $90,766 | 308,531 Direct | -0.86% | Disposed | 88.6% (price as of 2026-10-06) |
| Aug. 19, 2024 | CDNA | S | 23,548 | $33.52 | $789,329 | 284,983 Direct | -7.63% | Disposed | 90.3% (price as of 2026-10-06) |
| Aug. 1, 2024 | CDNA | F | 7,371 | $23.58 | $173,808 | 319,214 Direct | -2.26% | Disposed | 170.5% (price as of 2026-10-06) |
| July 19, 2024 | CDNA | F | 1,690 | $18.09 | $30,572 | 326,585 Direct | -0.51% | Disposed | 252.6% (price as of 2026-10-06) |
| July 8, 2024 | CDNA | F | 634 | $15.59 | $9,884 | 328,275 Direct | -0.19% | Disposed | 309.2% (price as of 2026-10-06) |
| June 17, 2024 | CDNA | F | 9,253 | $13.54 | $125,286 | 328,909 Direct | -2.74% | Disposed | 371.1% (price as of 2026-10-06) |
| May 1, 2024 | CDNA | F | 7,371 | $9.18 | $67,666 | 338,162 Direct | -2.13% | Disposed | 594.9% (price as of 2026-10-06) |
| Feb. 5, 2024 | CDNA | F | 1,120 | $8.56 | $9,587 | 169,893 Direct | -0.65% | Disposed | 645.2% (price as of 2026-10-06) |
| Feb. 2, 2024 | CDNA | F | 2,552 | $8.72 | $22,253 | 171,013 Direct | -1.47% | Disposed | 631.5% (price as of 2026-10-06) |
| Feb. 2, 2024 | CDNA | F | 1,614 | $8.72 | $14,074 | 173,565 Direct | -0.92% | Disposed | 631.5% (price as of 2026-10-06) |
| Feb. 1, 2024 | CDNA | A | 174,520 | · | · | 345,533 Direct | +102.05% | Acquired | (price as of 2026-10-06) |
| Feb. 1, 2024 | CDNA | F | 11,245 | $8.88 | $99,856 | 175,179 Direct | -6.03% | Disposed | 618.4% (price as of 2026-10-06) |
| Jan. 29, 2024 | CDNA | F | 1,120 | $9.88 | $11,066 | 186,424 Direct | -0.60% | Disposed | 545.6% (price as of 2026-10-06) |
| Jan. 2, 2024 | CDNA | F | 1,047 | $11.94 | $12,501 | 187,544 Direct | -0.56% | Disposed | 434.3% (price as of 2026-10-06) |
| Aug. 7, 2023 | CDNA | F | 217 | $10.80 | $2,344 | 188,591 Direct | -0.11% | Disposed | 490.6% (price as of 2026-10-06) |
| July 19, 2023 | CDNA | F | 1,163 | $10.28 | $11,956 | 188,808 Direct | -0.61% | Disposed | 520.5% (price as of 2026-10-06) |
| July 6, 2023 | CDNA | F | 422 | $8.37 | $3,532 | 189,971 Direct | -0.22% | Disposed | 662.1% (price as of 2026-10-06) |
| June 16, 2023 | CDNA | F | 6,343 | $7.96 | $50,490 | 190,393 Direct | -3.22% | Disposed | 701.4% (price as of 2026-10-06) |
| June 5, 2023 | CDNA | F | 433 | $7.98 | $3,455 | 196,736 Direct | -0.22% | Disposed | 699.4% (price as of 2026-10-06) |
| Feb. 3, 2023 | CDNA | F | 417 | $16.54 | $6,897 | 197,169 Direct | -0.21% | Disposed | 285.7% (price as of 2026-10-06) |
| Feb. 3, 2023 | CDNA | F | 417 | $16.54 | $6,897 | 197,586 Direct | -0.21% | Disposed | 285.7% (price as of 2026-10-06) |
| Feb. 2, 2023 | CDNA | F | 2,029 | $17.61 | $35,731 | 198,003 Direct | -1.01% | Disposed | 262.2% (price as of 2026-10-06) |
| Feb. 1, 2023 | CDNA | A | 44,100 | · | · | 44,100 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 1, 2023 | CDNA | F | 618 | $15.66 | $9,678 | 200,032 Direct | -0.31% | Disposed | 307.3% (price as of 2026-10-06) |
| Feb. 1, 2023 | CDNA | A | 3,200 | · | · | 200,650 Direct | +1.62% | Acquired | (price as of 2026-10-06) |
| Feb. 1, 2023 | CDNA | A | 85,100 | · | · | 197,450 Direct | +75.75% | Acquired | (price as of 2026-10-06) |
| Jan. 30, 2023 | CDNA | F | 820 | $14.65 | $12,013 | 112,350 Direct | -0.72% | Disposed | 335.4% (price as of 2026-10-06) |
| Jan. 25, 2023 | CDNA | F | 1,011 | $15.03 | $15,195 | 113,170 Direct | -0.89% | Disposed | 324.4% (price as of 2026-10-06) |
| Aug. 9, 2022 | CDNA | A | 112,658 | · | · | 112,658 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 9, 2022 | CDNA | A | 54,768 | · | · | 114,181 Direct | +92.18% | Acquired | (price as of 2026-10-06) |
| Feb. 2, 2022 | CDNA | A | 29,900 | · | · | 29,900 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 2, 2022 | CDNA | A | 19,900 | · | · | 59,413 Direct | +50.36% | Acquired | (price as of 2026-10-06) |
| Jan. 29, 2022 | CDNA | F | 802 | $38.51 | $30,885 | 39,513 Direct | -1.99% | Disposed | 65.6% (price as of 2026-10-06) |
| Jan. 25, 2022 | CDNA | F | 822 | $38.29 | $31,474 | 40,315 Direct | -2.00% | Disposed | 66.6% (price as of 2026-10-06) |
| Aug. 6, 2021 | CDNA | F | 217 | $81.54 | $17,694 | 41,137 Direct | -0.52% | Disposed | -21.8% (price as of 2026-10-06) |
| July 19, 2021 | CDNA | A | 13,333 | · | · | 13,333 Direct | · | Acquired | (price as of 2026-10-06) |
| July 19, 2021 | CDNA | A | 13,333 | · | · | 41,354 Direct | +47.58% | Acquired | (price as of 2026-10-06) |
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. 21, 2024 | CDNA | Employee Stock Option (right to buy) | Common Stock | $23.48 | Aug. 9, 2032 | 21,557 | Disposed |
| Aug. 20, 2024 | CDNA | Employee Stock Option (right to buy) | Common Stock | $23.48 | Aug. 9, 2032 | 39,466 | Disposed |
| Feb. 1, 2023 | CDNA | Stock Option (right to buy) | Common Stock | $15.66 | Feb. 1, 2033 | 44,100 | Acquired |
| Aug. 9, 2022 | CDNA | Employee Stock Option (right to buy) | Common Stock | $23.48 | Aug. 9, 2032 | 112,658 | Acquired |
| Feb. 2, 2022 | CDNA | Employee Stock Option (right to buy) | Common Stock | $41.32 | Feb. 2, 2032 | 29,900 | Acquired |
| July 19, 2021 | CDNA | Employee Stock Option (right to buy) | Common Stock | $78.02 | July 19, 2031 | 13,333 | Acquired |
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 |
|---|---|---|---|---|
| July 20, 2021 | CDNA | Common Stock | · | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 2,917 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 3,437 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 6,667 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 10,667 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 2,500 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy) | 8,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $408,281 | $100,000 | · | · | $174,300 | · | $8,270 | $3,097,438 |
| 2022 | $384,844 | · | $2,519,355 | $2,657,432 | $161,510 | · | $1,080 | $5,724,221 |
| 2021 | $332,920 | · | · | · | $382,062 | · | $1,560 | $3,967,447 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.