David Dalvey
CIK 1296457 · View on SEC EDGAR ↗
Insider
First SEC filing: June 9, 2026 · Latest: June 9, 2026
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-7,417,600
+ 10 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
10 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 4, 2026 | CELC | S 10b5-1 | 25,000 | $140.68 | $3,517,000 | 65,000 Indirect | -27.78% | Disposed | -32.6% (price as of 2026-08-19) |
| Jan. 27, 2026 | CELC | S 10b5-1 | 20,000 | $120.03 | $2,400,600 | 90,000 Indirect | -18.18% | Disposed | -21.0% (price as of 2026-08-19) |
| Nov. 21, 2025 | CELC | S 10b5-1 | 15,000 | $100.00 | $1,500,000 | 110,000 Indirect | -12.00% | Disposed | -5.1% (price as of 2026-08-19) |
| Dec. 15, 2023 | CELC | S | 2,940 | $14.57 | $42,836 | 225,000 Indirect | -1.29% | Disposed | 551.2% (price as of 2026-08-19) |
| Dec. 14, 2023 | CELC | S | 5,000 | $14.75 | $73,750 | 227,940 Indirect | -2.15% | Disposed | 543.2% (price as of 2026-08-19) |
| Dec. 13, 2023 | CELC | S | 5,000 | $14.50 | $72,500 | 232,940 Indirect | -2.10% | Disposed | 554.3% (price as of 2026-08-19) |
| Dec. 12, 2023 | CELC | S | 2,060 | $14.61 | $30,097 | 237,940 Indirect | -0.86% | Disposed | 549.4% (price as of 2026-08-19) |
| Dec. 8, 2023 | CELC | S | 5,000 | $15.00 | $75,000 | 240,000 Indirect | -2.04% | Disposed | 532.5% (price as of 2026-08-19) |
| Dec. 7, 2023 | CELC | S | 5,000 | $14.85 | $74,250 | 245,000 Indirect | -2.00% | Disposed | 538.9% (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 4, 2024 | CELC | Stock Option (right to buy) | Common Stock (8,153) | $14.83 | June 4, 2034 | 8,153 | Acquired |
| May 15, 2023 | CELC | Stock Option (right to buy) | Common Stock (11,645) | $9.58 | May 15, 2033 | 11,645 | Acquired |
| May 12, 2021 | CELC | Stock Option (right to buy) | Common Stock (2,310) | $26.99 | May 12, 2031 | 2,310 | Acquired |
| May 14, 2020 | CELC | Stock Option (right to buy) | Common Stock (12,654) | $5.10 | May 14, 2030 | 12,654 | Acquired |
| May 16, 2019 | CELC | Stock Option (right to buy) | Common Stock (5,054) | $22.45 | May 16, 2029 | 5,054 | Acquired |
| May 14, 2018 | CELC | Stock Option (right to buy) | Common Stock (3,201) | $19.45 | May 14, 2028 | 3,201 | Acquired |
| Oct. 19, 2017 | CELC | Stock Option (right to buy) | Common Stock (8,200) | $16.23 | Oct. 19, 2027 | 8,200 | 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 |
|---|---|---|---|---|
| Sept. 19, 2017 | CELC | Common Stock | 250,000 | Indirect |