Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 74 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

74 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
May 9, 2025 GERN P 13,300 $1.18 $15,694 13,300 Direct · Acquired 2.5% (price as of 2026-10-05)
May 15, 2024 GERN S 10b5-1 35,000 $3.75 $131,250 0 Direct -100.00% Disposed -67.7% (price as of 2026-10-05)
May 11, 2023 GERN S 10b5-1 35,000 $3.00 $105,000 0 Direct -100.00% Disposed -59.7% (price as of 2026-10-05)
April 3, 2023 BMRN S 10b5-1 8,500 $97.09 $825,265 28,950 Direct -22.70% Disposed -40.7% (price as of 2026-10-05)
April 14, 2022 BMRN S 10b5-1 4,250 $83.66 $355,555 23,970 Direct -15.06% Disposed -31.2% (price as of 2026-10-05)
Jan. 14, 2022 BMRN S 10b5-1 4,250 $87.61 $372,342 23,970 Direct -15.06% Disposed -34.3% (price as of 2026-10-05)
April 15, 2021 BMRN S 10b5-1 7,500 $76.90 $576,750 18,850 Direct -28.46% Disposed -25.2% (price as of 2026-10-05)
Feb. 16, 2021 BMRN S 10b5-1 7,500 $87.41 $655,575 18,850 Direct -28.46% Disposed -34.2% (price as of 2026-10-05)
June 5, 2020 BMRN S 10b5-1 4,430 $107.46 $476,048 18,850 Direct -19.03% Disposed -46.5% (price as of 2026-10-05)
March 17, 2020 BMRN S 10b5-1 3,750 $75.39 $282,712 18,980 Direct -16.50% Disposed -23.7% (price as of 2026-10-05)
March 16, 2020 BMRN S 10b5-1 4,610 $76.52 $352,757 18,980 Direct -19.54% Disposed -24.8% (price as of 2026-10-05)
Dec. 17, 2019 BMRN S 10b5-1 3,750 $83.36 $312,600 23,590 Direct -13.72% Disposed -31.0% (price as of 2026-10-05)
Sept. 17, 2019 BMRN S 10b5-1 3,750 $74.47 $279,262 23,590 Direct -13.72% Disposed -22.7% (price as of 2026-10-05)
June 17, 2019 BMRN S 10b5-1 3,750 $81.08 $304,050 23,590 Direct -13.72% Disposed -29.0% (price as of 2026-10-05)
March 27, 2019 BMRN S 10b5-1 2,150 $89.76 $192,984 19,160 Direct -10.09% Disposed -35.9% (price as of 2026-10-05)
Dec. 27, 2018 BMRN S 10b5-1 2,150 $82.53 $177,440 19,160 Direct -10.09% Disposed -30.3% (price as of 2026-10-05)
Sept. 27, 2018 BMRN S 10b5-1 2,150 $97.93 $210,550 19,160 Direct -10.09% Disposed -41.2% (price as of 2026-10-05)
June 27, 2018 BMRN S 10b5-1 2,150 $93.52 $201,068 19,160 Direct -10.09% Disposed -38.5% (price as of 2026-10-05)
April 17, 2018 BMRN S 10b5-1 3,750 $85.00 $318,750 14,860 Direct -20.15% Disposed -32.3% (price as of 2026-10-05)
Jan. 2, 2018 BMRN S 10b5-1 3,750 $88.84 $333,150 14,860 Direct -20.15% Disposed -35.2% (price as of 2026-10-05)
Sept. 15, 2017 BMRN S 10b5-1 3,750 $91.26 $342,225 15,910 Direct -19.07% Disposed -36.9% (price as of 2026-10-05)
June 16, 2017 BMRN S 10b5-1 3,750 $90.00 $337,500 15,910 Direct -19.07% Disposed -36.1% (price as of 2026-10-05)
March 1, 2017 BMRN S 10b5-1 7,500 $95.00 $712,500 13,860 Direct -35.11% Disposed -39.4% (price as of 2026-10-05)
Nov. 9, 2016 BMRN S 10b5-1 7,500 $95.00 $712,500 13,860 Direct -35.11% Disposed -39.4% (price as of 2026-10-05)
July 27, 2016 BMRN S 10b5-1 1,100 $95.39 $104,929 13,860 Direct -7.35% Disposed -39.7% (price as of 2026-10-05)
July 22, 2016 BMRN S 10b5-1 6,400 $95.01 $608,064 13,860 Direct -31.59% Disposed -39.4% (price as of 2026-10-05)

Showing latest 100 of 149 transactions

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 21, 2025 GERN Stock Option (right to buy) Common Stock (180,000) $1.34 May 20, 2035 180,000 Acquired
May 15, 2024 GERN Stock Option (right to buy) Common Stock (35,000) $1.94 May 20, 2024 35,000 Disposed
May 9, 2024 GERN Stock Option (right to buy) Common Stock (180,000) $3.88 May 8, 2034 180,000 Acquired
May 31, 2023 GERN Stock Option (right to buy) Common Stock (125,000) $3.27 May 30, 2033 125,000 Acquired
May 11, 2023 GERN Stock Options (right to buy) Common Stock (35,000) $1.10 May 22, 2023 35,000 Disposed
April 3, 2023 BMRN Stock Option (Right to Buy Common Stock) Common Stock (8,500) $67.81 May 14, 2023 8,500 Disposed
June 7, 2022 SYRE Director Stock Option (right to buy) Common Stock (43,000) $0.73 June 6, 2032 43,000 Acquired
May 10, 2022 GERN Stock Option (right to buy) Common Stock (125,000) $1.48 May 9, 2032 125,000 Acquired
April 14, 2022 BMRN Stock Option (Right to buy Common Stock) Common Stock (4,250) $37.46 May 7, 2022 4,250 Disposed
Jan. 14, 2022 BMRN Stock Option (Right to buy Common Stock) Common Stock (4,250) $37.46 May 7, 2022 4,250 Disposed
June 8, 2021 SYRE Director Stock Option (right to buy) Common Stock (40,000) $6.80 June 7, 2031 40,000 Acquired
May 11, 2021 GERN Stock Option (right to buy) Common Stock (83,000) $1.39 May 10, 2031 83,000 Acquired
April 15, 2021 BMRN Stock Option (Right to buy Common Stock) Common Stock (7,500) $26.49 May 11, 2021 7,500 Disposed
Feb. 16, 2021 BMRN Stock Option (Right to buy Common Stock) Common Stock (7,500) $26.49 May 11, 2021 7,500 Disposed
Jan. 11, 2021 CHRS Stock Option (Right to Buy) Common Stock (20,000) $17.58 Jan. 11, 2031 20,000 Acquired
June 8, 2020 SYRE Director Stock Option (right to buy) Common Stock (28,100) $8.89 June 7, 2030 28,100 Acquired
June 5, 2020 GERN Stock Option (right to buy) Common Stock (83,000) $1.54 June 4, 2030 83,000 Acquired
March 17, 2020 BMRN Stock Option (Right to buy Common Stock) Common Stock (3,750) $21.51 May 11, 2020 3,750 Disposed
Jan. 10, 2020 CHRS Stock Option (Right to Buy) Common Stock (20,000) $17.73 Jan. 10, 2030 20,000 Acquired
Dec. 17, 2019 BMRN Stock Option (Right to buy Common Stock) Common Stock (3,750) $21.51 May 11, 2020 3,750 Disposed
Sept. 17, 2019 BMRN Stock Option (Right to buy Common Stock) Common Stock (3,750) $21.51 May 11, 2020 3,750 Disposed
June 17, 2019 BMRN Stock Option (Right to buy Common Stock) Common Stock (3,750) $21.51 May 11, 2020 3,750 Disposed
June 7, 2019 SYRE Director Stock Option (right to buy) Common Stock (12,400) $6.33 June 6, 2029 12,400 Acquired
June 6, 2019 GERN Stock Option (right to buy) Common Stock (70,000) $1.38 June 5, 2029 70,000 Acquired
March 27, 2019 BMRN Stock Option (Right to buy Common Stock) Common Stock (2,150) $14.39 May 11, 2019 2,150 Disposed
Jan. 11, 2019 CHRS Stock Option (Right to Buy) Common Stock (20,000) $12.37 Jan. 11, 2029 20,000 Acquired
Dec. 27, 2018 BMRN Stock Option (Right to buy Common Stock) Common Stock (2,150) $14.39 May 11, 2019 2,150 Disposed
Sept. 27, 2018 BMRN Stock Option (Right to buy Common Stock) Common Stock (2,150) $14.39 May 11, 2019 2,150 Disposed
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock) Common Stock (26,033) $15.00 Sept. 25, 2028 26,033 Acquired
July 13, 2018 SYRE Director Stock Option (right to buy) Common Stock (36,800) $8.78 July 12, 2028 36,800 Acquired
June 27, 2018 BMRN Stock Option (Right to buy Common Stock) Common Stock (2,150) $14.39 May 11, 2019 2,150 Disposed
May 15, 2018 GERN Stock Option (right to buy) Common Stock (70,000) $3.43 May 14, 2028 70,000 Acquired
April 17, 2018 BMRN Stock Option (right to buy Common Stock) Common Stock (3,750) $38.59 May 21, 2018 3,750 Disposed
Feb. 1, 2018 CHRS Stock Option (Right to Buy) Common Stock (20,000) $10.05 Feb. 1, 2028 20,000 Acquired
Jan. 2, 2018 BMRN Stock Option (right to buy Common Stock) Common Stock (3,750) $38.59 May 21, 2018 3,750 Disposed
Sept. 15, 2017 BMRN Stock Option (right to buy) Common Stock Common Stock (3,750) $38.59 May 21, 2018 3,750 Disposed
June 16, 2017 BMRN Stock Option (right to buy) Common Stock Common Stock (3,750) $38.59 May 21, 2018 3,750 Disposed
June 6, 2017 BMRN Stock Option (Right to buy) Common Stock Common Stock (4,910) $89.60 June 5, 2027 4,910 Acquired
May 17, 2017 CHRS Stock Option (Right to Buy) Common Stock (20,000) $23.80 May 17, 2027 20,000 Acquired
May 9, 2017 GERN Stock Option (right to buy) Common Stock (50,000) $2.63 May 9, 2027 50,000 Acquired
March 1, 2017 BMRN Stock Option (Right to buy) Common Stock Common Stock (7,500) $17.33 June 6, 2017 7,500 Disposed
Nov. 9, 2016 BMRN Stock Option (Right to buy) Common Stock Common Stock (7,500) $17.33 June 6, 2017 7,500 Disposed
July 27, 2016 BMRN Stock Option (Right to buy) Common Stock Common Stock (1,100) $17.33 June 6, 2017 1,100 Disposed
July 22, 2016 BMRN Stock Option (Right to buy) Common Stock Common Stock (6,400) $17.33 June 6, 2017 6,400 Disposed
June 6, 2016 BMRN Stock Option (Right to buy) Common Stock Common Stock (4,440) $89.52 June 5, 2026 4,440 Acquired
May 24, 2016 CHRS Stock Option (Right to Buy) Common Stock (10,000) $18.28 May 24, 2026 10,000 Acquired
May 17, 2016 GERN Stock Option (right to buy) Common Stock (50,000) $2.74 May 17, 2026 50,000 Acquired
Nov. 16, 2015 BMRN Stock Option (right to buy) common stock Common Stock (7,500) $17.33 June 6, 2017 7,500 Disposed
June 10, 2015 BMRN Stock Option (right to buy) common stock Common Stock (3,300) $122.27 June 9, 2025 3,300 Acquired
May 18, 2015 GERN Stock Option (right to buy) Common Stock (35,000) $3.88 May 18, 2025 35,000 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (25,000) $29.00 March 31, 2025 25,000 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (6,250) $29.00 March 31, 2025 6,250 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (20,000) $29.00 March 31, 2025 20,000 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (25,000) $29.00 March 31, 2025 25,000 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (6,250) $29.00 March 31, 2025 6,250 Acquired
April 1, 2015 CHRS Stock Option (Right to Buy) Common Stock (20,000) $29.00 March 31, 2025 20,000 Acquired
Dec. 31, 2014 CHRS Stock Option (Right to Buy) Common Stock (15,000) $16.32 Dec. 30, 2024 15,000 Acquired
Nov. 6, 2014 CHRS Stock Option (Right to Buy) Common Stock (14,997) $13.50 Nov. 5, 2024 14,997 Acquired
June 4, 2014 BMRN Stock Option (right to buy) common stock Common Stock (6,600) $63.10 June 3, 2024 6,600 Acquired
May 20, 2014 GERN Stock Option (right to buy) Common Stock (35,000) $1.94 May 20, 2024 35,000 Acquired
May 22, 2013 GERN Stock Option (right to buy) Common Stock (35,000) $1.10 May 22, 2023 35,000 Acquired
May 15, 2013 BMRN Stock Option (right to buy) Common Stock (8,500) $67.81 May 14, 2023 8,500 Acquired
May 17, 2012 GERN Stock Option (right to buy) Common Stock (35,000) $1.41 May 17, 2022 35,000 Acquired
May 15, 2012 BMRN Stock Option (right to buy) Common Stock (6,400) $14.39 May 11, 2019 6,400 Disposed
May 15, 2012 BMRN Stock Option (right to buy) Common Stock (6,400) $14.39 May 11, 2019 6,400 Disposed
May 8, 2012 BMRN Stock Option (right to buy) Common Stock (8,500) $37.46 May 7, 2022 8,500 Acquired
May 12, 2011 BMRN Stock Option (right to buy) Common Stock (15,000) $26.49 May 11, 2021 15,000 Acquired
May 12, 2010 BMRN Stock Option (right to buy) Common Stock (15,000) $21.51 May 11, 2020 15,000 Acquired
May 22, 2009 BMRN Restricted Stock Unit [F2] Common Stock (2,500) · · 2,500 Disposed
May 12, 2009 BMRN Stock Option (right to buy) Common Stock (15,000) $14.39 May 11, 2019 15,000 Acquired
May 22, 2008 BMRN Restricted Stock Unit Common Stock (2,500) · · 2,500 Acquired
May 22, 2008 BMRN Stock Option (right to buy) Common Stock (15,000) $38.59 May 21, 2018 15,000 Acquired
June 7, 2007 BMRN Stock Option (right to buy) Common Stock (30,000) $17.33 June 6, 2017 30,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 10 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Sept. 26, 2018 STRO Common Stock 2,478 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (826) 826 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (6,611) 6,611 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (873) 873 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (3,540) 3,540 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (3,269) 3,269 Direct
Sept. 26, 2018 STRO Stock Option (right to buy Common Stock)→ Common Stock (2,427) 2,427 Direct
Nov. 6, 2014 CHRS Stock Option (Right to Buy)→ Common Stock (29,994) 29,994 Direct
March 15, 2012 GERN Stock Option (right to buy)→ Common Stock (70,000) 70,000 Direct
June 21, 2007 BMRN Common Stock 0 Direct