Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 83 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

83 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 5, 2024 JBIO S 10b5-1 4,600 $17.45 $80,270 1,609 Direct -74.09% Disposed -97.7% (price as of 2026-10-05)
Jan. 5, 2024 JBIO S 10b5-1 2,126 $18.67 $39,692 4,083 Direct -34.24% Disposed -97.8% (price as of 2026-10-05)
Jan. 5, 2024 JBIO S 10b5-1 2,474 $19.57 $48,416 1,609 Direct -60.59% Disposed -97.9% (price as of 2026-10-05)
Dec. 5, 2023 JBIO S 10b5-1 4,600 $16.30 $74,980 1,609 Direct -74.09% Disposed -97.5% (price as of 2026-10-05)
Nov. 22, 2023 JBIO S 10b5-1 13,800 $15.00 $207,000 1,609 Direct -89.56% Disposed -97.3% (price as of 2026-10-05)
July 5, 2023 JBIO S 10b5-1 2,031 $17.23 $34,994 1,828 Direct -52.63% Disposed -97.7% (price as of 2026-10-05)
July 5, 2023 JBIO S 10b5-1 219 $17.87 $3,914 1,609 Direct -11.98% Disposed -97.8% (price as of 2026-10-05)
June 5, 2023 JBIO S 10b5-1 2,250 $16.26 $36,585 1,609 Direct -58.31% Disposed -97.5% (price as of 2026-10-05)
May 5, 2023 JBIO S 10b5-1 2,045 $20.79 $42,516 1,814 Direct -52.99% Disposed -98.1% (price as of 2026-10-05)
May 5, 2023 JBIO S 10b5-1 205 $21.63 $4,434 1,609 Direct -11.30% Disposed -98.1% (price as of 2026-10-05)
April 5, 2023 JBIO S 10b5-1 1,715 $17.91 $30,716 2,144 Direct -44.44% Disposed -97.8% (price as of 2026-10-05)
April 5, 2023 JBIO S 10b5-1 535 $19.11 $10,224 1,609 Direct -24.95% Disposed -97.9% (price as of 2026-10-05)
March 6, 2023 JBIO S 10b5-1 2,205 $23.73 $52,325 1,654 Direct -57.14% Disposed -98.3% (price as of 2026-10-05)
March 6, 2023 JBIO S 10b5-1 45 $24.92 $1,121 1,609 Direct -2.72% Disposed -98.4% (price as of 2026-10-05)
Feb. 6, 2023 JBIO S 10b5-1 2,250 $24.27 $54,608 1,609 Direct -58.31% Disposed -98.3% (price as of 2026-10-05)
Jan. 5, 2023 JBIO S 10b5-1 2,250 $26.40 $59,400 1,609 Direct -58.31% Disposed -98.5% (price as of 2026-10-05)
Dec. 5, 2022 JBIO S 10b5-1 2,250 $17.38 $39,105 1,609 Direct -58.31% Disposed -97.7% (price as of 2026-10-05)

Showing latest 100 of 143 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
Feb. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (900) $1.74 Sept. 3, 2030 900 Disposed
Feb. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (500) $1.74 Sept. 3, 2030 500 Disposed
Feb. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (500) $2.14 April 1, 2031 500 Disposed
Feb. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (1,200) $2.14 April 1, 2031 1,200 Disposed
Feb. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (1,500) $2.14 April 1, 2031 1,500 Disposed
Jan. 22, 2024 JBIO Stock Option (Right to Buy) Common Stock (66,586) $20.00 Jan. 21, 2034 66,586 Acquired
Jan. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (900) $1.74 Sept. 3, 2030 900 Disposed
Jan. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (500) $1.74 Sept. 3, 2030 500 Disposed
Jan. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (500) $2.14 April 1, 2031 500 Disposed
Jan. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (1,200) $2.14 April 1, 2031 1,200 Disposed
Jan. 5, 2024 JBIO Stock Option (Right to Buy) Common Stock (1,500) $2.14 April 1, 2031 1,500 Disposed
Dec. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (900) $1.74 Sept. 3, 2030 900 Disposed
Dec. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (500) $1.74 Sept. 3, 2030 500 Disposed
Dec. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (500) $2.14 April 1, 2031 500 Disposed
Dec. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,200) $2.14 April 1, 2031 1,200 Disposed
Dec. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,500) $2.14 April 1, 2031 1,500 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (2,700) $1.74 Sept. 3, 2030 2,700 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,500) $1.74 Sept. 3, 2030 1,500 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,500) $2.14 April 1, 2031 1,500 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (3,600) $2.14 April 1, 2031 3,600 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (4,500) $2.14 April 1, 2031 4,500 Disposed
July 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
July 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
July 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
July 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
July 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
June 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
June 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
June 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
June 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
June 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
May 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
May 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
May 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
May 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
May 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
April 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
April 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
April 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
April 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
April 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Feb. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (62,000) $25.57 Feb. 6, 2033 62,000 Acquired
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Jan. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Jan. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Jan. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Jan. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Jan. 5, 2023 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Dec. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Dec. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Dec. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Dec. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Dec. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Oct. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Oct. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Oct. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Oct. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Oct. 5, 2022 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Aug. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (450) $1.74 Sept. 3, 2030 450 Disposed
Aug. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $1.74 Sept. 3, 2030 200 Disposed
Aug. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (200) $2.14 April 1, 2031 200 Disposed
Aug. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (650) $2.14 April 1, 2031 650 Disposed
Aug. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (750) $2.14 April 1, 2031 750 Disposed
Dec. 14, 2021 JBIO Stock Option (Right to Buy) Common Stock (65,433) $10.61 Dec. 13, 2031 65,433 Acquired
June 29, 2021 JBIO Stock Option (Right to Buy) Common Stock (26,300) $14.00 June 28, 2031 26,300 Acquired
April 2, 2021 JBIO Stock Option (Right to Buy) Common Stock · April 1, 2031 16,294 Acquired
April 2, 2021 JBIO Stock Option (Right to Buy) Common Stock · April 1, 2031 109,640 Acquired

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

Initial ownership (Form 3) 5 holdings

07

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

DateTickerSecuritySharesOwnership
June 29, 2021 JBIO Common Stock 1,609 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (14,488) 14,488 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (24,108) 24,108 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (16,294) 16,294 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (109,640) 109,640 Direct