Gerald Mcmahon PhD
CIK 1290747 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 15, 2016 · Latest: Dec. 15, 2016
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 26 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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 3, 2018 | CLDX | F | 2,824 | $0.30 | $847 | 180,697 Direct | -1.54% | Disposed | 832.6% (price as of 2026-08-19) |
| Nov. 1, 2018 | CLDX | F | 2,888 | $0.31 | $895 | 183,521 Direct | -1.55% | Disposed | 802.5% (price as of 2026-08-19) |
| Oct. 1, 2018 | CLDX | F | 2,888 | $0.45 | $1,300 | 186,409 Direct | -1.53% | Disposed | 521.7% (price as of 2026-08-19) |
| Sept. 4, 2018 | CLDX | F | 2,813 | $0.50 | $1,406 | 189,297 Direct | -1.46% | Disposed | 459.5% (price as of 2026-08-19) |
| Aug. 1, 2018 | CLDX | F | 2,813 | $0.46 | $1,294 | 192,110 Direct | -1.44% | Disposed | 508.2% (price as of 2026-08-19) |
| July 2, 2018 | CLDX | F | 2,813 | $0.50 | $1,406 | 194,923 Direct | -1.42% | Disposed | 459.5% (price as of 2026-08-19) |
| June 13, 2018 | CLDX | A | 67,000 | — | — | 67,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 1, 2018 | CLDX | F | 2,813 | $0.58 | $1,632 | 197,736 Direct | -1.40% | Disposed | 382.4% (price as of 2026-08-19) |
| May 1, 2018 | CLDX | F | 2,813 | $0.74 | $2,082 | 200,549 Direct | -1.38% | Disposed | 278.1% (price as of 2026-08-19) |
| April 2, 2018 | CLDX | F | 3,379 | $2.33 | $7,873 | 203,362 Direct | -1.63% | Disposed | 20.1% (price as of 2026-08-19) |
| March 1, 2018 | CLDX | F | 3,415 | $2.25 | $7,684 | 206,741 Direct | -1.62% | Disposed | 24.3% (price as of 2026-08-19) |
| Feb. 1, 2018 | CLDX | F | 3,415 | $2.76 | $9,425 | 210,156 Direct | -1.60% | Disposed | 1.4% (price as of 2026-08-19) |
| Jan. 2, 2018 | CLDX | F | 3,665 | $2.84 | $10,409 | 213,571 Direct | -1.69% | Disposed | -1.5% (price as of 2026-08-19) |
| Dec. 1, 2017 | CLDX | F | 3,212 | $3.00 | $9,636 | 217,236 Direct | -1.46% | Disposed | -6.7% (price as of 2026-08-19) |
| Nov. 1, 2017 | CLDX | F | 3,212 | $2.44 | $7,837 | 220,448 Direct | -1.44% | Disposed | 14.7% (price as of 2026-08-19) |
| Oct. 2, 2017 | CLDX | F | 3,212 | $2.86 | $9,186 | 223,660 Direct | -1.42% | Disposed | -2.2% (price as of 2026-08-19) |
| Sept. 1, 2017 | CLDX | F | 3,212 | $2.46 | $7,902 | 226,872 Direct | -1.40% | Disposed | 13.7% (price as of 2026-08-19) |
| Aug. 1, 2017 | CLDX | F | 2,869 | $2.29 | $6,570 | 230,084 Direct | -1.23% | Disposed | 22.2% (price as of 2026-08-19) |
| July 3, 2017 | CLDX | F | 2,869 | $2.47 | $7,086 | 232,953 Direct | -1.22% | Disposed | 13.3% (price as of 2026-08-19) |
| June 15, 2017 | CLDX | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-19) |
| June 15, 2017 | CLDX | A | 10,000 | — | — | 235,822 Direct | +4.43% | Acquired | (price as of 2026-08-19) |
| June 1, 2017 | CLDX | F | 2,869 | $2.83 | $8,119 | 225,822 Direct | -1.25% | Disposed | -1.1% (price as of 2026-08-19) |
| May 1, 2017 | CLDX | F | 2,869 | $3.33 | $9,554 | 228,691 Direct | -1.24% | Disposed | -16.0% (price as of 2026-08-19) |
| April 3, 2017 | CLDX | F | 2,869 | $3.61 | $10,357 | 231,560 Direct | -1.22% | Disposed | -22.5% (price as of 2026-08-19) |
| March 1, 2017 | CLDX | F | 32,927 | $3.54 | $116,562 | 234,429 Direct | -12.32% | Disposed | -21.0% (price as of 2026-08-19) |
| Dec. 14, 2016 | CLDX | A | 8,000 | — | — | 8,000 Direct | — | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 13, 2018 | CLDX | Non-Qualified Stock Option (right to buy) [F1] | Common Stock (67,000) | $0.60 | June 13, 2028 | 67,000 | Acquired |
| June 15, 2017 | CLDX | Non-Qualified Stock Option (right to buy) [F2] | Common Stock (15,000) | $2.32 | June 15, 2027 | 15,000 | Acquired |
| Dec. 14, 2016 | CLDX | Non-Qualified Stock Otion (right to buy) [F1] | Common Stock (8,000) | $3.72 | Dec. 14, 2026 | 8,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 15, 2016 | CLDX | Common Stock, par value $0.001 per share | — | Direct |