Alexander L Johnson
CIK 1617150 · View on SEC EDGAR ↗
Insider
First SEC filing: July 20, 2021 · Latest: July 20, 2021
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 30 non-open-market transactions below
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 5, 2024 | CDNA | F | 1,120 | $8.56 | $9,587 | 169,893 Direct | -0.65% | Disposed | 452.0% (price as of 2026-08-20) |
| Feb. 2, 2024 | CDNA | F | 2,552 | $8.72 | $22,253 | 171,013 Direct | -1.47% | Disposed | 441.9% (price as of 2026-08-20) |
| Feb. 2, 2024 | CDNA | F | 1,614 | $8.72 | $14,074 | 173,565 Direct | -0.92% | Disposed | 441.9% (price as of 2026-08-20) |
| Feb. 1, 2024 | CDNA | A | 174,520 | — | — | 345,533 Direct | +102.05% | Acquired | (price as of 2026-08-20) |
| Feb. 1, 2024 | CDNA | F | 11,245 | $8.88 | $99,856 | 175,179 Direct | -6.03% | Disposed | 432.1% (price as of 2026-08-20) |
| Jan. 29, 2024 | CDNA | F | 1,120 | $9.88 | $11,066 | 186,424 Direct | -0.60% | Disposed | 378.2% (price as of 2026-08-20) |
| Jan. 2, 2024 | CDNA | F | 1,047 | $11.94 | $12,501 | 187,544 Direct | -0.56% | Disposed | 295.7% (price as of 2026-08-20) |
| Aug. 7, 2023 | CDNA | F | 217 | $10.80 | $2,344 | 188,591 Direct | -0.11% | Disposed | 337.5% (price as of 2026-08-20) |
| July 19, 2023 | CDNA | F | 1,163 | $10.28 | $11,956 | 188,808 Direct | -0.61% | Disposed | 359.6% (price as of 2026-08-20) |
| July 6, 2023 | CDNA | F | 422 | $8.37 | $3,532 | 189,971 Direct | -0.22% | Disposed | 464.5% (price as of 2026-08-20) |
| June 16, 2023 | CDNA | F | 6,343 | $7.96 | $50,490 | 190,393 Direct | -3.22% | Disposed | 493.6% (price as of 2026-08-20) |
| June 5, 2023 | CDNA | F | 433 | $7.98 | $3,455 | 196,736 Direct | -0.22% | Disposed | 492.1% (price as of 2026-08-20) |
| Feb. 3, 2023 | CDNA | F | 417 | $16.54 | $6,897 | 197,169 Direct | -0.21% | Disposed | 185.7% (price as of 2026-08-20) |
| Feb. 3, 2023 | CDNA | F | 417 | $16.54 | $6,897 | 197,586 Direct | -0.21% | Disposed | 185.7% (price as of 2026-08-20) |
| Feb. 2, 2023 | CDNA | F | 2,029 | $17.61 | $35,731 | 198,003 Direct | -1.01% | Disposed | 168.3% (price as of 2026-08-20) |
| Feb. 1, 2023 | CDNA | A | 44,100 | — | — | 44,100 Direct | — | Acquired | (price as of 2026-08-20) |
| Feb. 1, 2023 | CDNA | F | 618 | $15.66 | $9,678 | 200,032 Direct | -0.31% | Disposed | 201.7% (price as of 2026-08-20) |
| Feb. 1, 2023 | CDNA | A | 3,200 | — | — | 200,650 Direct | +1.62% | Acquired | (price as of 2026-08-20) |
| Feb. 1, 2023 | CDNA | A | 85,100 | — | — | 197,450 Direct | +75.75% | Acquired | (price as of 2026-08-20) |
| Jan. 30, 2023 | CDNA | F | 820 | $14.65 | $12,013 | 112,350 Direct | -0.72% | Disposed | 222.5% (price as of 2026-08-20) |
| Jan. 25, 2023 | CDNA | F | 1,011 | $15.03 | $15,195 | 113,170 Direct | -0.89% | Disposed | 214.4% (price as of 2026-08-20) |
| Aug. 9, 2022 | CDNA | A | 112,658 | — | — | 112,658 Direct | — | Acquired | (price as of 2026-08-20) |
| Aug. 9, 2022 | CDNA | A | 54,768 | — | — | 114,181 Direct | +92.18% | Acquired | (price as of 2026-08-20) |
| Feb. 2, 2022 | CDNA | A | 29,900 | — | — | 29,900 Direct | — | Acquired | (price as of 2026-08-20) |
| Feb. 2, 2022 | CDNA | A | 19,900 | — | — | 59,413 Direct | +50.36% | Acquired | (price as of 2026-08-20) |
| Jan. 29, 2022 | CDNA | F | 802 | $38.51 | $30,885 | 39,513 Direct | -1.99% | Disposed | 22.7% (price as of 2026-08-20) |
| Jan. 25, 2022 | CDNA | F | 822 | $38.29 | $31,474 | 40,315 Direct | -2.00% | Disposed | 23.4% (price as of 2026-08-20) |
| Aug. 6, 2021 | CDNA | F | 217 | $81.54 | $17,694 | 41,137 Direct | -0.52% | Disposed | -42.1% (price as of 2026-08-20) |
| July 19, 2021 | CDNA | A | 13,333 | — | — | 13,333 Direct | — | Acquired | (price as of 2026-08-20) |
| July 19, 2021 | CDNA | A | 13,333 | — | — | 41,354 Direct | +47.58% | Acquired | (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.
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 |
|---|---|---|---|---|---|---|---|
| Feb. 1, 2023 | CDNA | Stock Option (right to buy) | Common Stock (44,100) | $15.66 | Feb. 1, 2033 | 44,100 | Acquired |
| Aug. 9, 2022 | CDNA | Employee Stock Option (right to buy) | Common Stock (112,658) | $23.48 | Aug. 9, 2032 | 112,658 | Acquired |
| Feb. 2, 2022 | CDNA | Employee Stock Option (right to buy) | Common Stock (29,900) | $41.32 | Feb. 2, 2032 | 29,900 | Acquired |
| July 19, 2021 | CDNA | Employee Stock Option (right to buy) | Common Stock (13,333) | $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)→ Common Stock (2,917) | 2,917 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy)→ Common Stock (3,437) | 3,437 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy)→ Common Stock (6,667) | 6,667 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy)→ Common Stock (10,667) | 10,667 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy)→ Common Stock (2,500) | 2,500 | Direct |
| July 20, 2021 | CDNA | Employee Stock Option (right to buy)→ Common Stock (8,000) | 8,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
CDNA
President of President and Testing Services| 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.