Matthew K Fust

CIK 1397266 · View on SEC EDGAR ↗

Insider

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

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 82 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

82 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 20, 2024 CRNX S 10b5-1 17,500 $45.50 $796,250 18,536 Direct -48.56% Disposed 86.3% (price as of 2026-08-21)
March 20, 2024 CRNX S 10b5-1 17,500 $43.58 $762,650 18,536 Direct -48.56% Disposed 94.5% (price as of 2026-08-21)
March 20, 2024 CRNX S 10b5-1 12,500 $43.57 $544,625 18,536 Direct -40.28% Disposed 94.5% (price as of 2026-08-21)
March 20, 2024 CRNX S 10b5-1 12,500 $43.57 $544,625 18,536 Direct -40.28% Disposed 94.5% (price as of 2026-08-21)
March 7, 2024 RARE S 7,500 $50.88 $381,600 14,860 Direct -33.54% Disposed -48.7% (price as of 2026-08-21)
March 7, 2024 RARE S 2,145 $50.85 $109,073 22,360 Direct -8.75% Disposed -48.6% (price as of 2026-08-21)
March 7, 2024 RARE S 2,550 $50.89 $129,770 24,505 Direct -9.43% Disposed -48.7% (price as of 2026-08-21)
July 13, 2022 CRNX S 5,700 $20.96 $119,472 12,536 Direct -31.26% Disposed 304.3% (price as of 2026-08-21)
Nov. 1, 2021 CRNX S 8,954 $25.50 $228,327 12,536 Direct -41.67% Disposed 232.4% (price as of 2026-08-21)
Sept. 8, 2021 CRNX S 6,046 $25.50 $154,173 12,536 Direct -32.54% Disposed 232.4% (price as of 2026-08-21)
July 26, 2021 CRNX S 5,000 $19.59 $97,950 12,536 Direct -28.51% Disposed 332.6% (price as of 2026-08-21)
July 19, 2021 CRNX S 5,000 $19.50 $97,500 12,536 Direct -28.51% Disposed 334.6% (price as of 2026-08-21)
July 12, 2021 CRNX S 5,000 $20.71 $103,550 12,536 Direct -28.51% Disposed 309.2% (price as of 2026-08-21)
July 6, 2020 RARE S 10b5-1 6,181 $90.00 $556,290 13,550 Direct -31.33% Disposed -71.0% (price as of 2026-08-21)
July 1, 2020 RARE S 10b5-1 5,000 $85.00 $425,000 13,550 Direct -26.95% Disposed -69.3% (price as of 2026-08-21)
May 18, 2020 RARE S 10b5-1 1,875 $75.00 $140,625 11,000 Direct -14.56% Disposed -65.2% (price as of 2026-08-21)
April 22, 2020 RARE S 10b5-1 1,875 $65.00 $121,875 12,875 Direct -12.71% Disposed -59.8% (price as of 2026-08-21)
Dec. 16, 2019 CRNX S 10b5-1 3,500 $22.50 $78,750 12,536 Direct -21.83% Disposed 276.7% (price as of 2026-08-21)

Showing latest 100 of 164 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.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
June 18, 2026 CRNX Stock Option (Right to Buy) Common Stock (9,730) $35.87 June 18, 2036 9,730 Acquired
May 14, 2026 RARE Stock Option (Right to Buy) Common Stock (14,058) $25.80 May 14, 2036 14,058 Acquired
June 11, 2025 CRNX Stock Option (right to buy) Common Stock (10,350) $32.33 June 11, 2035 10,350 Acquired
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (80,000) $0.72 May 27, 2035 80,000 Acquired
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (28,571) — June 13, 2034 28,571 Acquired
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (27,802) — Sept. 14, 2033 27,802 Acquired
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (85,586) — April 23, 2031 85,586 Acquired
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (28,571) $1.69 June 13, 2034 28,571 Disposed
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (27,802) $1.69 Sept. 14, 2033 27,802 Disposed
May 28, 2025 NMRA Stock Option (Right to Buy) Common Stock (85,586) $1.69 April 23, 2031 85,586 Disposed
May 15, 2025 RARE Stock Option (Right to Buy) Common Stock (10,787) $34.84 May 15, 2035 10,787 Acquired
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (28,571) — June 13, 2034 28,571 Acquired
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (27,802) — Sept. 14, 2033 27,802 Acquired
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (85,586) — April 23, 2031 85,586 Acquired
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (28,571) $9.95 June 13, 2034 28,571 Disposed
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (27,802) $17.00 Sept. 14, 2033 27,802 Disposed
Feb. 13, 2025 NMRA Stock Option (Right to Buy) Common Stock (85,586) $2.51 April 23, 2031 85,586 Disposed
June 18, 2024 RARE Stock Option (Right to Buy) Common Stock (9,900) $37.42 June 18, 2034 9,900 Acquired
June 7, 2024 CRNX Stock Option (right to buy) Common Stock (12,500) $44.71 June 7, 2034 12,500 Acquired
March 20, 2024 CRNX Stock Option (right to buy) Common Stock (17,500) $18.29 June 16, 2032 17,500 Acquired
March 20, 2024 CRNX Stock Option (right to buy) Common Stock (17,500) $20.23 June 21, 2031 17,500 Acquired
March 20, 2024 CRNX Stock Option (right to buy) Common Stock (12,500) $23.23 June 18, 2030 12,500 Acquired
March 20, 2024 CRNX Stock Option (right to buy) Common Stock (12,500) $23.24 June 20, 2029 12,500 Acquired
June 16, 2023 CRNX Stock Option (right to buy) Common Stock (17,500) $20.32 June 15, 2033 17,500 Acquired
June 7, 2023 RARE Stock Option (Right to Buy) Common Stock (7,110) $51.82 June 7, 2033 7,110 Acquired
May 31, 2023 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (79,500) $1.53 May 30, 2033 79,500 Acquired
July 13, 2022 CRNX Non-qualified stock option (Right to Buy) Common stock (5,700) $1.45 Nov. 5, 2027 5,700 Disposed
June 24, 2022 RARE Stock Option (Right to Buy) Common Stock (6,245) $60.57 June 24, 2032 6,245 Acquired
June 23, 2022 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (31,500) $7.35 June 22, 2032 31,500 Acquired
June 17, 2022 CRNX Stock Option (right to buy) Common Stock (17,500) $18.29 June 16, 2032 17,500 Acquired
March 4, 2022 RARE Stock Option (Right to Buy) Common Stock (7,500) $40.37 July 10, 2024 7,500 Disposed
Nov. 1, 2021 CRNX Non-qualified stock option (Right to Buy) Common stock (8,954) $1.91 March 16, 2028 8,954 Disposed
Sept. 8, 2021 CRNX Non-qualified stock option (Right to Buy) Common stock (6,046) $1.91 March 16, 2028 6,046 Disposed
July 26, 2021 CRNX Non-qualified stock option (Right to Buy) Common stock (5,000) $1.91 March 16, 2028 5,000 Disposed
July 19, 2021 CRNX Non-qualified stock option (Right to Buy) Common stock (5,000) $1.91 March 16, 2028 5,000 Disposed
July 12, 2021 CRNX Non-qualified stock option (Right to Buy) Common stock (5,000) $1.91 March 16, 2028 5,000 Disposed
June 24, 2021 RARE Stock Option (Right to Buy) Common Stock (4,125) $93.20 June 24, 2031 4,125 Acquired
June 22, 2021 CRNX Stock Option (right to buy) Common Stock (17,500) $20.23 June 21, 2031 17,500 Acquired
June 8, 2021 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (17,500) $13.80 June 7, 2031 17,500 Acquired
July 6, 2020 RARE Stock Option (Right to Buy) Common Stock (6,181) $21.00 Jan. 29, 2024 6,181 Disposed
July 1, 2020 RARE Stock Option (Right to Buy) Common Stock (5,000) $21.00 Jan. 29, 2024 5,000 Disposed
June 26, 2020 RARE Stock Option (Right to Buy) Common Stock (4,250) $76.58 June 26, 2030 4,250 Acquired
June 19, 2020 CRNX Stock Option (right to buy) Common Stock (12,500) $23.23 June 18, 2030 12,500 Acquired
June 16, 2020 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (24,500) $10.54 June 15, 2030 24,500 Acquired
Dec. 16, 2019 CRNX Non-qualified stock option (Right to Buy) Common stock (3,500) $1.91 March 16, 2028 3,500 Disposed
June 27, 2019 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (13,000) $20.25 June 26, 2029 13,000 Acquired
June 21, 2019 CRNX Stock Option (right to buy) Common Stock (12,500) $23.24 June 20, 2029 12,500 Acquired
June 11, 2019 RARE Stock Option (Right to Buy) Common Stock (5,000) $58.74 June 11, 2029 5,000 Acquired
May 16, 2019 MGNX Stock Option (right to buy) Common Stock (10,000) $18.00 May 16, 2029 10,000 Acquired
Feb. 6, 2019 MGNX Stock Option (right to buy) Common Stock (6,924) $20.15 June 5, 2024 6,924 Disposed
June 19, 2018 RARE Stock Option (Right to Buy) Common Stock (5,000) $80.69 June 19, 2028 5,000 Acquired
June 14, 2018 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (5,000) $45.65 June 13, 2025 5,000 Acquired
May 17, 2018 MGNX Stock Option (right to buy) Common Stock (10,000) $21.34 May 17, 2028 10,000 Acquired
May 15, 2018 ATRA Restricted Stock Units Common Stock (534) — — 534 Disposed
Feb. 15, 2018 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
Nov. 15, 2017 ATRA Restricted Stock Units Common Stock (1,602) — — 1,602 Disposed
Aug. 15, 2017 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
June 22, 2017 RARE Employee Stock Option (Right to Buy) Common Stock (3,750) $65.66 June 22, 2027 3,750 Acquired
June 8, 2017 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (21,500) $13.20 June 8, 2024 21,500 Acquired
May 18, 2017 MGNX Stock Option (right to buy) Common Stock (10,000) $19.57 May 18, 2027 10,000 Acquired
May 15, 2017 ATRA Restricted Stock Units Common Stock (1,602) — — 1,602 Disposed
Feb. 15, 2017 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
Jan. 3, 2017 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (5,500) $15.08 Jan. 3, 2024 5,500 Acquired
Nov. 15, 2016 ATRA Restricted Stock Units Common Stock (1,602) — — 1,602 Disposed
Aug. 15, 2016 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
May 18, 2016 MGNX Stock Option (right to buy) Common Stock (8,500) $21.06 May 18, 2026 8,500 Acquired
May 16, 2016 ATRA Restricted Stock Units Common Stock (1,603) — — 1,602 Disposed
Feb. 16, 2016 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
Jan. 4, 2016 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (10,500) $24.05 Jan. 4, 2023 10,500 Acquired
Nov. 16, 2015 ATRA Restricted Stock Units Common Stock (1,602) — — 1,602 Disposed
Aug. 17, 2015 ATRA Restricted Stock Units Common Stock (1,603) — — 1,603 Disposed
May 20, 2015 MGNX Stock Option (right to buy) Common Stock (8,500) $32.34 May 20, 2025 8,500 Acquired
May 15, 2015 ATRA Restricted Stock Units Common Stock (7,478) — — 7,478 Disposed
March 19, 2015 RARE Stock Option (Right to Buy) Common Stock (6,319) $21.00 Jan. 29, 2024 6,319 Disposed
Jan. 16, 2015 ATRA Non-Qualified Stock Option (Right to Buy) Common Stock (12,500) $25.15 Jan. 16, 2022 12,500 Acquired
Oct. 21, 2014 ATRA Restricted Stock Unit Common Stock (25,640) — — 25,640 Acquired
July 10, 2014 RARE Stock Option (Right to Buy) Common Stock (7,500) $40.37 July 9, 2024 7,500 Acquired
June 5, 2014 MGNX Stock Option (right to buy) Common Stock (6,924) $20.15 June 5, 2024 6,924 Acquired
March 5, 2014 MGNX Stock Option (right to buy) Common Stock (13,849) $34.94 March 5, 2024 13,849 Acquired
Jan. 30, 2014 RARE Stock Option (Right to Buy) Common Stock (17,500) $21.00 Jan. 29, 2024 17,500 Acquired
May 16, 2008 JAZZ Option (right to buy) Common Stock (60,000) $7.96 May 15, 2018 60,000 Acquired
June 6, 2007 JAZZ Series B Preferred Stock Common Stock (19,879) — — 19,879 Disposed

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

Initial ownership (Form 3) 11 holdings

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

Date Ticker Security Shares Ownership
Sept. 14, 2023 NMRA Stock Option (Right to Buy)→ Common Stock — Direct
Sept. 14, 2023 NMRA Stock Option (Right to Buy)→ Common Stock — Direct
Sept. 14, 2023 NMRA Stock Option (Right to Buy)→ Common Stock — Direct
July 17, 2018 CRNX Common Stock 12,536 Direct
July 17, 2018 CRNX Stock Option (right to buy)→ Common Stock (5,700) 5,700 Direct
July 17, 2018 CRNX Stock Option (right to buy)→ Common Stock (45,592) 45,592 Direct
March 7, 2014 MGNX Common Stock 500 Direct
May 31, 2007 JAZZ Common Stock 29,818 Direct
May 31, 2007 JAZZ Series B Preferred Stock→ Common Stock (19,879) 19,879 Direct
May 31, 2007 JAZZ Employee Stock Option (right to buy)→ Common Stock (104,420) 104,420 Direct
May 31, 2007 JAZZ Employee Stock Option (right to buy)→ Common Stock (22,590) 22,590 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

JAZZ

CFO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2008 $408,028 — — — — — — $520,577
2007 $340,850 — — — $100,000 — — $698,107
2006 $327,159 — — — $70,000 — — $628,661

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.