David Dalvey
Insider
First SEC filing: June 9, 2026 · Latest: June 9, 2026
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-7,417,600
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 5, 2026 | CELC | A | 1,530 | · | · | 1,530 Direct | · | Acquired | (price as of 2026-10-02) |
| May 4, 2026 | CELC | S 10b5-1 | 25,000 | $140.68 | $3,517,000 | 65,000 Indirect | -27.78% | Disposed | -48.7% (price as of 2026-10-02) |
| Jan. 27, 2026 | CELC | S 10b5-1 | 20,000 | $120.03 | $2,400,600 | 90,000 Indirect | -18.18% | Disposed | -39.9% (price as of 2026-10-02) |
| Nov. 21, 2025 | CELC | S 10b5-1 | 15,000 | $100.00 | $1,500,000 | 110,000 Indirect | -12.00% | Disposed | -27.9% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 3,137 | $44.36 | $139,157 | 6,188 Direct | -33.64% | Disposed | 62.5% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 4,163 | $45.24 | $188,334 | 2,025 Direct | -67.28% | Disposed | 59.4% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 2,025 | $46.05 | $93,251 | 0 Direct | -100.00% | Disposed | 56.6% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 57,044 | $43.30 | $2,470,005 | 167,956 Indirect | -25.35% | Disposed | 66.5% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 22,377 | $44.36 | $992,644 | 145,579 Indirect | -13.32% | Disposed | 62.5% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 16,438 | $45.29 | $744,477 | 129,141 Indirect | -11.29% | Disposed | 59.2% (price as of 2026-10-02) |
| July 28, 2025 | CELC | S 10b5-1 | 4,141 | $46.05 | $190,693 | 125,000 Indirect | -3.21% | Disposed | 56.6% (price as of 2026-10-02) |
| May 19, 2025 | CELC | A | 14,048 | · | · | 14,048 Direct | · | Acquired | (price as of 2026-10-02) |
| June 4, 2024 | CELC | A | 8,153 | · | · | 8,153 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 15, 2023 | CELC | S | 2,940 | $14.57 | $42,836 | 225,000 Indirect | -1.29% | Disposed | 394.9% (price as of 2026-10-02) |
| Dec. 14, 2023 | CELC | S | 5,000 | $14.75 | $73,750 | 227,940 Indirect | -2.15% | Disposed | 388.8% (price as of 2026-10-02) |
| Dec. 13, 2023 | CELC | S | 5,000 | $14.50 | $72,500 | 232,940 Indirect | -2.10% | Disposed | 397.2% (price as of 2026-10-02) |
| Dec. 12, 2023 | CELC | S | 2,060 | $14.61 | $30,097 | 237,940 Indirect | -0.86% | Disposed | 393.5% (price as of 2026-10-02) |
| Dec. 8, 2023 | CELC | S | 5,000 | $15.00 | $75,000 | 240,000 Indirect | -2.04% | Disposed | 380.7% (price as of 2026-10-02) |
| Dec. 7, 2023 | CELC | S | 5,000 | $14.85 | $74,250 | 245,000 Indirect | -2.00% | Disposed | 385.5% (price as of 2026-10-02) |
| May 15, 2023 | CELC | A | 11,645 | · | · | 11,645 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | CELC | D | 8,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 17, 2022 | CELC | A | 8,200 | · | · | 8,200 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | CELC | D | 3,201 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 17, 2022 | CELC | A | 3,201 | · | · | 3,201 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | CELC | D | 5,054 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 17, 2022 | CELC | A | 5,054 | · | · | 5,054 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | CELC | D | 2,310 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 17, 2022 | CELC | A | 2,310 | · | · | 2,310 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2022 | CELC | A | 24,449 | · | · | 24,449 Direct | · | Acquired | (price as of 2026-10-02) |
| May 12, 2021 | CELC | A | 2,310 | · | · | 2,310 Direct | · | Acquired | (price as of 2026-10-02) |
| May 12, 2021 | CELC | A | 1,482 | · | · | 9,325 Direct | +18.90% | Acquired | (price as of 2026-10-02) |
| May 14, 2020 | CELC | A | 12,654 | · | · | 12,654 Direct | · | Acquired | (price as of 2026-10-02) |
| May 14, 2020 | CELC | A | 7,843 | · | · | 7,843 Direct | · | Acquired | (price as of 2026-10-02) |
| May 16, 2019 | CELC | A | 5,054 | · | · | 5,054 Direct | · | Acquired | (price as of 2026-10-02) |
| May 14, 2018 | CELC | A | 3,201 | · | · | 3,201 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 19, 2017 | CELC | A | 8,200 | · | · | 8,200 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| May 19, 2025 | CELC | Stock Option (right to buy) | Common Stock | $10.69 | May 19, 2035 | 14,048 | Acquired |
| June 4, 2024 | CELC | Stock Option (right to buy) | Common Stock | $14.83 | June 4, 2034 | 8,153 | Acquired |
| May 15, 2023 | CELC | Stock Option (right to buy) | Common Stock | $9.58 | May 15, 2033 | 11,645 | Acquired |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $16.23 | Oct. 19, 2027 | 8,200 | Disposed |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $5.50 | Oct. 19, 2027 | 8,200 | Acquired |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $19.45 | May 14, 2028 | 3,201 | Disposed |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $5.50 | May 14, 2028 | 3,201 | Acquired |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $22.45 | May 16, 2029 | 5,054 | Disposed |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $5.50 | May 16, 2029 | 5,054 | Acquired |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $26.99 | May 12, 2031 | 2,310 | Disposed |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $5.50 | May 12, 2031 | 2,310 | Acquired |
| May 17, 2022 | CELC | Stock Option (right to buy) | Common Stock | $5.50 | May 17, 2032 | 24,449 | Acquired |
| May 12, 2021 | CELC | Stock Option (right to buy) | Common Stock | $26.99 | May 12, 2031 | 2,310 | Acquired |
| May 14, 2020 | CELC | Stock Option (right to buy) | Common Stock | $5.10 | May 14, 2030 | 12,654 | Acquired |
| May 16, 2019 | CELC | Stock Option (right to buy) | Common Stock | $22.45 | May 16, 2029 | 5,054 | Acquired |
| May 14, 2018 | CELC | Stock Option (right to buy) | Common Stock | $19.45 | May 14, 2028 | 3,201 | Acquired |
| Oct. 19, 2017 | CELC | Stock Option (right to buy) | Common Stock | $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 |