Willard H Dere

CIK 1311569 · View on SEC EDGAR ↗

Insider

First SEC filing: June 11, 2026 · Latest: June 11, 2026

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 26 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)
June 9, 2026 MGX A 21,000 — — 21,000 Direct — Acquired (price as of 2026-08-20)
June 2, 2026 BMRN A 7,490 — — 46,440 — — (price as of 2026-08-20)
June 10, 2025 MGX A 21,000 — — 21,000 Direct — Acquired (price as of 2026-08-20)
May 20, 2025 BMRN A 6,650 — — 38,950 Direct +20.59% Acquired (price as of 2026-08-20)
April 10, 2025 MCRB A 100,000 — — 100,000 Direct — Acquired (price as of 2026-08-20)
May 21, 2024 BMRN A 4,720 — — 32,300 Direct +17.11% Acquired (price as of 2026-08-20)
April 4, 2024 MCRB A 60,000 — — 60,000 Direct — Acquired (price as of 2026-08-20)
April 1, 2024 MGX A 78,636 — — 78,636 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 23, 2023 BMRN A 4,190 — — 27,580 Direct +17.91% Acquired (price as of 2026-08-20)
July 5, 2022 MCRB A 31,746 $3.15 $100,000 31,746 Direct — Acquired -92.8% (price as of 2026-08-20)
June 22, 2022 MCRB A 35,000 — — 35,000 Direct — Acquired (price as of 2026-08-20)
June 16, 2021 MCRB A 23,000 — — 23,000 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)
June 13, 2019 MCRB A 15,000 — — 15,000 Direct — Acquired (price as of 2026-08-20)
June 26, 2018 MCRB A 15,000 — — 15,000 Direct — Acquired (price as of 2026-08-20)
June 5, 2018 BMRN A 4,300 — — 8,990 Direct +91.68% Acquired (price as of 2026-08-20)
July 7, 2017 MCRB A 30,000 — — 30,000 Direct — Acquired (price as of 2026-08-20)
June 6, 2017 BMRN A 4,910 — — 4,910 Direct — Acquired (price as of 2026-08-20)
June 6, 2017 BMRN A 2,050 — — 4,690 Direct +77.65% Acquired (price as of 2026-08-20)
July 15, 2016 BMRN A 9,880 — — 9,880 Direct — Acquired (price as of 2026-08-20)
July 15, 2016 BMRN A 2,640 — — 2,640 Direct — Acquired (price as of 2026-08-20)
July 15, 2016 BMRN A 8,230 — — 8,230 Direct — Acquired (price as of 2026-08-20)
July 15, 2016 BMRN A 3,300 — — 3,300 Direct — Acquired (price as of 2026-08-20)
Dec. 13, 2004 AMGN A 13,900 — — 13,900 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
June 9, 2026 MGX Stock Option (Right to Buy) Common Stock (21,000) $1.23 June 8, 2036 21,000 Acquired
June 10, 2025 MGX Stock Option (Right to Buy) Common Stock (21,000) $1.57 June 9, 2035 21,000 Acquired
April 10, 2025 MCRB Stock Option (right to buy) Common Stock (100,000) $0.58 April 9, 2035 100,000 Acquired
April 4, 2024 MCRB Stock Option (right to buy) Common Stock (60,000) $0.76 April 3, 2034 60,000 Acquired
April 1, 2024 MGX Stock Option (Right to Buy) Common Stock (78,636) $10.82 March 31, 2034 78,636 Acquired
June 22, 2023 MCRB Stock Option (right to buy) Common Stock (35,000) $5.46 June 21, 2033 35,000 Acquired
June 22, 2022 MCRB Stock Option (right to buy) Common Stock (35,000) $3.22 June 21, 2032 35,000 Acquired
June 16, 2021 MCRB Stock Option (right to buy) Common Stock (23,000) $19.74 June 15, 2031 23,000 Acquired
June 18, 2020 MCRB Stock Option (right to buy) Common Stock (30,000) $4.40 June 17, 2030 30,000 Acquired
June 13, 2019 MCRB Stock Option (right to buy) Common Stock (15,000) $2.83 June 12, 2029 15,000 Acquired
June 26, 2018 MCRB Stock Option (right to buy) Common Stock (15,000) $9.09 June 25, 2028 15,000 Acquired
July 7, 2017 MCRB Stock Option (right to buy) Common Stock (30,000) $11.14 July 6, 2027 30,000 Acquired
June 6, 2017 BMRN Stock Option (right to buy Common Stock) Common Stock (4,910) $89.60 June 5, 2027 4,910 Acquired
July 15, 2016 BMRN Stock Option (right to buy Common Stock) Common Stock (9,880) $92.08 July 14, 2026 9,880 Acquired
July 15, 2016 BMRN Stock Option (right to buy Common Stock) Common Stock (8,230) $92.08 July 14, 2026 8,230 Acquired
Dec. 13, 2004 AMGN NQSO (Right to Buy) Common Stock (13,900) $63.95 Dec. 13, 2011 13,900 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
Feb. 8, 2024 MGX Common Stock 51,275 Direct
Dec. 15, 2004 AMGN Common Stock 9,550 Direct
Dec. 15, 2004 AMGN ISO (Right to Buy)→ Common Stock (3,362) 3,362 Direct
Dec. 15, 2004 AMGN ISO (Right to Buy)→ Common Stock (5,804) 5,804 Direct
Dec. 15, 2004 AMGN NQSO (Right to Buy)→ Common Stock (11,934) 11,934 Direct
Dec. 15, 2004 AMGN NQSO (Right to Buy)→ Common Stock (34,196) 34,196 Direct