Stephen Berenson
CIK 1760671 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 7, 2018 · Latest: Dec. 7, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 30 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 |
|---|---|---|---|---|---|---|---|---|---|
| July 8, 2026 | MCRB | A | 6,500 | — | — | 6,500 Direct | — | Acquired | (price as of 2026-08-20) |
| July 1, 2026 | MCRB | A | 7,508 | — | — | 7,508 Direct | — | Acquired | (price as of 2026-08-20) |
| July 1, 2025 | MCRB | A | 11,470 | — | — | 11,470 Direct | — | Acquired | (price as of 2026-08-20) |
| April 10, 2025 | MCRB | A | 100,000 | — | — | 100,000 Direct | — | Acquired | (price as of 2026-08-20) |
| July 1, 2024 | MCRB | A | 114,782 | — | — | 114,782 Direct | — | Acquired | (price as of 2026-08-20) |
| May 6, 2024 | MRNA | A | 7,557 | — | — | 7,557 Direct | — | Acquired | (price as of 2026-08-20) |
| May 3, 2024 | MRNA | M | 732 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 3, 2024 | MRNA | M | 732 | — | — | 22,203 Direct | +3.41% | Acquired | (price as of 2026-08-20) |
| April 4, 2024 | MCRB | A | 60,000 | — | — | 60,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 22, 2023 | MCRB | A | 35,000 | — | — | 35,000 Direct | — | Acquired | (price as of 2026-08-20) |
| May 3, 2023 | MRNA | A | 732 | — | — | 732 Direct | — | Acquired | (price as of 2026-08-20) |
| May 3, 2023 | MRNA | A | 4,601 | — | — | 4,601 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2023 | MRNA | M | 670 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| April 28, 2023 | MRNA | M | 670 | — | — | 21,471 Direct | +3.22% | Acquired | (price as of 2026-08-20) |
| June 22, 2022 | MCRB | A | 35,000 | — | — | 35,000 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2022 | MRNA | A | 670 | — | — | 670 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2022 | MRNA | A | 4,061 | — | — | 4,061 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2022 | MRNA | M | 703 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| April 28, 2022 | MRNA | M | 703 | — | — | 20,801 Direct | +3.50% | Acquired | (price as of 2026-08-20) |
| Aug. 19, 2021 | MRNA | G | 2,700 | — | — | 20,098 Direct | -11.84% | Disposed | (price as of 2026-08-20) |
| June 16, 2021 | MCRB | A | 23,000 | — | — | 23,000 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2021 | MRNA | A | 703 | — | — | 703 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2021 | MRNA | A | 4,081 | — | — | 4,081 Direct | — | Acquired | (price as of 2026-08-20) |
| Nov. 23, 2020 | MCRB | J | 3,589 | — | — | 3,589 Direct | — | Acquired | (price as of 2026-08-20) |
| June 18, 2020 | MCRB | A | 30,000 | — | — | 30,000 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) |
| Aug. 5, 2019 | MCRB | A | 30,000 | — | — | 30,000 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) |
| Dec. 11, 2018 | MRNA | C | 22,798 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Dec. 11, 2018 | MRNA | C | 22,798 | — | — | 22,798 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 |
|---|---|---|---|---|---|---|---|
| July 8, 2026 | MCRB | Stock Option (right to buy) | Common Stock (6,500) | $7.14 | July 7, 2036 | 6,500 | Acquired |
| July 1, 2026 | MCRB | Stock Option (right to buy) | Common Stock (7,508) | $7.94 | July 1, 2036 | 7,508 | Acquired |
| July 1, 2025 | MCRB | Stock Option (right to buy) | Common Stock (11,470) | $10.71 | July 1, 2035 | 11,470 | Acquired |
| April 10, 2025 | MCRB | Stock Option (right to buy) | Common Stock (100,000) | $0.58 | April 9, 2035 | 100,000 | Acquired |
| July 1, 2024 | MCRB | Stock Option (Right to Buy) | Common Stock (114,782) | $0.72 | June 30, 2034 | 114,782 | Acquired |
| May 6, 2024 | MRNA | Stock Option (Right to Buy) | Common Stock (7,557) | $122.13 | May 6, 2034 | 7,557 | Acquired |
| May 3, 2024 | MRNA | Restricted Stock Units | Common Stock (732) | — | — | 732 | Disposed |
| April 4, 2024 | MCRB | Stock Option (Right to Buy) | Common Stock (60,000) | $0.76 | April 3, 2034 | 60,000 | Acquired |
| June 22, 2023 | MCRB | Stock Option (right to buy) | Common Stock (35,000) | $5.46 | June 21, 2033 | 35,000 | Acquired |
| May 3, 2023 | MRNA | Restricted Stock Units | Common Stock (732) | $0.00 | — | 732 | Acquired |
| May 3, 2023 | MRNA | Stock Option (Right to Buy) | Common Stock (4,601) | $130.14 | May 3, 2033 | 4,601 | Acquired |
| April 28, 2023 | MRNA | Restricted Stock Units | Common Stock (670) | — | — | 670 | Disposed |
| June 22, 2022 | MCRB | Stock Option (right to buy) | Common Stock (35,000) | $3.22 | June 21, 2032 | 35,000 | Acquired |
| April 28, 2022 | MRNA | Restricted Stock Units | Common Stock (670) | $0.00 | — | 670 | Acquired |
| April 28, 2022 | MRNA | Stock Option (Right to Buy) | Common Stock (4,061) | $142.52 | — | 4,061 | Acquired |
| April 28, 2022 | MRNA | Restricted Stock Units | Common Stock (703) | $0.00 | — | 703 | Disposed |
| June 16, 2021 | MCRB | Stock Option (right to buy) | Common Stock (23,000) | $19.74 | June 15, 2031 | 23,000 | Acquired |
| April 28, 2021 | MRNA | Restricted Stock Units | Common Stock (703) | $0.00 | — | 703 | Acquired |
| April 28, 2021 | MRNA | Stock Option (Right to Buy) | Common Stock (4,081) | $178.68 | April 28, 2031 | 4,081 | Acquired |
| June 18, 2020 | MCRB | Stock Option (right to buy) | Common Stock (30,000) | $4.40 | June 17, 2030 | 30,000 | Acquired |
| April 29, 2020 | MRNA | Stock Option (Right to Buy) | Common Stock (18,270) | $46.37 | April 29, 2030 | 18,270 | Acquired |
| Aug. 5, 2019 | MCRB | Stock Option (Right to Buy) | Common Stock (30,000) | $2.44 | Aug. 4, 2029 | 30,000 | Acquired |
| June 27, 2019 | MRNA | Stock Option (Right to Buy) | Common Stock (54,660) | $14.34 | June 27, 2029 | 54,660 | Acquired |
| Dec. 11, 2018 | MRNA | Series G Preferred Stock | Common Stock (22,798) | — | — | 22,798 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.