Deborah J Neff
CIK 1221786 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 7, 2011 · Latest: June 12, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 6 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 |
|---|---|---|---|---|---|---|---|---|---|
| June 10, 2026 | CTKB | M | 43,973 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 10, 2026 | CTKB | A | 18,261 | — | — | 18,261 Direct | — | Acquired | (price as of 2026-08-20) |
| June 10, 2026 | CTKB | A | 33,333 | — | — | 33,333 Direct | — | Acquired | (price as of 2026-08-20) |
| June 10, 2026 | CTKB | M | 43,973 | — | — | 59,679 Direct | +279.98% | Acquired | (price as of 2026-08-20) |
| June 14, 2023 | CTKB | A | 30,242 | — | — | 30,242 Direct | — | Acquired | (price as of 2026-08-20) |
| June 1, 2022 | CTKB | A | 47,013 | — | — | 47,013 Direct | — | 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 |
|---|---|---|---|---|---|---|---|
| June 10, 2026 | CTKB | Restricted Stock Units | Common Stock (43,973) | — | — | 43,973 | Disposed |
| June 10, 2026 | CTKB | Director Stock Option (right to buy) | Common Stock (18,261) | $4.05 | June 10, 2036 | 18,261 | Acquired |
| June 10, 2026 | CTKB | Restricted Stock Units | Common Stock (33,333) | — | — | 33,333 | Acquired |
| June 14, 2023 | CTKB | Stock Option (right to buy) | Common Stock (30,242) | $8.38 | June 14, 2033 | 30,242 | Acquired |
| June 1, 2022 | CTKB | Stock Option (right to buy) | Common Stock (47,013) | $9.67 | June 1, 2032 | 47,013 | 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 |
|---|---|---|---|---|
| Nov. 7, 2011 | BIO | No securities benefically owned | 0 | Direct |