Moncef Slaoui
CIK 1712369 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2020 · Latest: June 15, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 8 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 22, 2026 | PCVX | A | 26,061 | — | — | 26,061 Direct | — | Acquired | (price as of 2026-08-20) |
| June 5, 2026 | ARCT | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 9, 2025 | ARCT | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 19, 2024 | ARCT | A | 14,794 | — | — | 14,794 Direct | — | Acquired | (price as of 2026-08-20) |
| June 19, 2024 | ARCT | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-20) |
| April 29, 2020 | MRNA | A | 18,270 | — | — | 18,270 Direct | — | Acquired | (price as of 2026-08-20) |
| June 27, 2019 | MRNA | A | 54,660 | — | — | 54,660 Direct | — | Acquired | (price as of 2026-08-20) |
| July 25, 2017 | NTLA | A | 38,000 | — | — | 38,000 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 22, 2026 | PCVX | Stock Option (right to buy) | Common Stock (26,061) | $52.11 | June 22, 2036 | 26,061 | Acquired |
| June 5, 2026 | ARCT | Stock option (right to buy) [F1] | Common Stock (15,000) | $7.30 | June 5, 2036 | 15,000 | Acquired |
| June 9, 2025 | ARCT | Stock option (right to buy) [F1] | Common Stock (15,000) | $12.54 | June 9, 2035 | 15,000 | Acquired |
| June 19, 2024 | ARCT | Stock option (right to buy) | Common Stock (14,794) | $25.96 | June 19, 2034 | 14,794 | Acquired |
| June 19, 2024 | ARCT | Stock option (right to buy) | Common Stock (15,000) | $25.96 | June 19, 2034 | 15,000 | Acquired |
| April 29, 2020 | MRNA | Stock Option (Right to Buy) | Common Stock (18,270) | $46.37 | April 29, 2030 | 18,270 | Acquired |
| June 27, 2019 | MRNA | Stock Option (Right to Buy) | Common Stock (54,660) | $14.34 | June 27, 2029 | 54,660 | Acquired |
| July 25, 2017 | NTLA | Stock Option (right to buy) | Common Stock (38,000) | $16.91 | July 24, 2027 | 38,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 23, 2026 | PCVX | No securities owned. | 0 | Direct |
| June 11, 2020 | PCVX | Common Stock | 35,566 | Direct |
| June 11, 2020 | PCVX | Stock Option (right to buy)→ Common Stock (50,385) | 50,385 | Direct |
| June 11, 2020 | PCVX | Stock Option (right to buy)→ Common Stock (69,486) | 69,486 | Direct |
| Dec. 7, 2018 | MRNA | Stock Option (Right to Buy)→ Common Stock (42,201) | 42,201 | Direct |
| Dec. 7, 2018 | MRNA | Stock Option (Right to Buy)→ Common Stock (40,307) | 40,307 | Direct |