Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 77 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

77 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
April 17, 2024 JBIO S 10b5-1 6,447 $22.32 $143,897 1,697 Direct -79.16% Disposed -98.2% (price as of 2026-10-02)
April 17, 2024 JBIO S 10b5-1 338 $23.17 $7,831 1,359 Direct -19.92% Disposed -98.3% (price as of 2026-10-02)
April 17, 2024 JBIO S 10b5-1 68 $23.97 $1,630 1,291 Direct -5.00% Disposed -98.3% (price as of 2026-10-02)
April 1, 2024 JBIO S 10b5-1 3,325 $31.97 $106,300 1,291 Direct -72.03% Disposed -98.7% (price as of 2026-10-02)
March 27, 2024 JBIO S 10b5-1 11,068 $27.97 $309,572 1,291 Direct -89.55% Disposed -98.6% (price as of 2026-10-02)
March 25, 2024 JBIO S 10b5-1 3,432 $28.01 $96,130 1,291 Direct -72.67% Disposed -98.6% (price as of 2026-10-02)
March 18, 2024 JBIO S 10b5-1 27,476 $25.74 $707,232 8,872 Direct -75.59% Disposed -98.4% (price as of 2026-10-02)
March 18, 2024 JBIO S 10b5-1 7,581 $26.48 $200,745 1,291 Direct -85.45% Disposed -98.5% (price as of 2026-10-02)
Dec. 6, 2023 JBIO S 10b5-1 10,283 $16.11 $165,659 1,291 Direct -88.85% Disposed -97.5% (price as of 2026-10-02)
Nov. 27, 2023 JBIO S 10b5-1 12,517 $16.24 $203,276 1,291 Direct -90.65% Disposed -97.5% (price as of 2026-10-02)
Nov. 24, 2023 JBIO S 10b5-1 4,920 $15.74 $77,441 1,361 Direct -78.33% Disposed -97.4% (price as of 2026-10-02)
Nov. 24, 2023 JBIO S 10b5-1 70 $16.07 $1,125 1,291 Direct -5.14% Disposed -97.5% (price as of 2026-10-02)
Nov. 22, 2023 JBIO S 10b5-1 9,382 $15.17 $142,325 1,291 Direct -87.90% Disposed -97.3% (price as of 2026-10-02)
Sept. 7, 2023 JBIO S 10b5-1 30 $15.01 $450 1,291 Direct -2.27% Disposed -97.3% (price as of 2026-10-02)
Sept. 6, 2023 JBIO S 10b5-1 3,931 $15.06 $59,201 1,291 Direct -75.28% Disposed -97.3% (price as of 2026-10-02)
Aug. 7, 2023 JBIO S 10b5-1 9,742 $15.48 $150,806 1,832 Direct -84.17% Disposed -97.4% (price as of 2026-10-02)
Aug. 7, 2023 JBIO S 10b5-1 541 $16.25 $8,791 1,291 Direct -29.53% Disposed -97.5% (price as of 2026-10-02)
July 6, 2023 JBIO S 10b5-1 10,283 $16.66 $171,315 1,291 Direct -88.85% Disposed -97.6% (price as of 2026-10-02)
June 6, 2023 JBIO S 10b5-1 10,268 $16.28 $167,163 1,306 Direct -88.72% Disposed -97.5% (price as of 2026-10-02)
June 6, 2023 JBIO S 10b5-1 15 $16.98 $255 1,291 Direct -1.15% Disposed -97.6% (price as of 2026-10-02)
May 8, 2023 JBIO S 10b5-1 8,685 $21.62 $187,770 2,890 Direct -75.03% Disposed -98.1% (price as of 2026-10-02)
May 8, 2023 JBIO S 10b5-1 1,599 $22.74 $36,361 1,291 Direct -55.33% Disposed -98.2% (price as of 2026-10-02)
April 6, 2023 JBIO S 10b5-1 10,283 $18.17 $186,842 0 Direct -100.00% Disposed -97.8% (price as of 2026-10-02)

Showing latest 100 of 250 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
Aug. 1, 2024 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
July 31, 2024 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
July 31, 2024 JBIO Stock Option (Right to Buy) Common Stock (10,548) $1.74 Sept. 3, 2030 10,548 Disposed
April 17, 2024 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
April 1, 2024 JBIO Stock Option (Right to Buy) Common Stock (3,325) $10.61 Dec. 13, 2031 3,325 Disposed
March 27, 2024 JBIO Stock Option (Right to Buy) Common Stock (11,068) $10.61 Dec. 13, 2031 11,068 Disposed
March 25, 2024 JBIO Stock Option (Right to Buy) Common Stock (3,432) $10.61 Dec. 13, 2031 3,432 Disposed
March 18, 2024 JBIO Stock Option (Right to Buy) Common Stock (20,557) $2.14 April 1, 2031 20,557 Disposed
March 18, 2024 JBIO Stock Option (Right to Buy) Common Stock (14,500) $10.61 Dec. 13, 2031 14,500 Disposed
Jan. 22, 2024 JBIO Stock Options (Right to Buy) Common Stock (66,586) $20.00 Jan. 21, 2034 66,586 Acquired
Dec. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
Dec. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,506) $1.74 Sept. 3, 2030 1,506 Disposed
Dec. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,019) $2.14 April 1, 2031 1,019 Disposed
Dec. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
Nov. 27, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
Nov. 27, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Nov. 27, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
Nov. 27, 2023 JBIO Stock Option (Right to Buy) Common Stock (9,086) $2.14 April 1, 2031 9,086 Disposed
Nov. 24, 2023 JBIO Stock Option (Right to Buy) Common Stock (371) $2.14 April 1, 2031 371 Disposed
Nov. 24, 2023 JBIO Stock Option (Right to Buy) Common Stock (4,619) $2.14 April 1, 2031 4,619 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (648) $2.14 April 1, 2031 648 Disposed
Nov. 22, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,322) $2.14 April 1, 2031 6,322 Disposed
Sept. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (30) $2.14 April 1, 2031 30 Disposed
Sept. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
Sept. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Sept. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
Sept. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (500) $2.14 April 1, 2031 500 Disposed
Aug. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
Aug. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Aug. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
Aug. 7, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
July 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
July 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,506) $1.74 Sept. 3, 2030 1,506 Disposed
July 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,019) $2.14 April 1, 2031 1,019 Disposed
July 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,852) $2.14 April 1, 2031 6,852 Disposed
June 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
June 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
June 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
June 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
May 8, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
May 8, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
May 8, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
May 8, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
April 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
April 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
April 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,019) $2.14 April 1, 2031 1,019 Disposed
April 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,852) $2.14 April 1, 2031 6,852 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,506) $1.74 Sept. 3, 2030 1,506 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
March 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,852) $2.14 April 1, 2031 6,852 Disposed
Feb. 7, 2023 JBIO Stock Options (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 (905) $1.74 Sept. 3, 2030 905 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,019) $2.14 April 1, 2031 1,019 Disposed
Feb. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 6,853 Disposed
Jan. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 906 Disposed
Jan. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Jan. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
Jan. 6, 2023 JBIO Stock Option (Right to Buy) Common Stock (6,853) $2.14 April 1, 2031 36,570 Disposed
Dec. 12, 2022 JBIO Stock Option (Right to Buy) Common Stock (2,059) $2.14 April 1, 2031 2,059 Disposed
Dec. 9, 2022 JBIO Stock Option (Right to Buy) Common Stock (394) $2.14 April 1, 2031 394 Disposed
Dec. 8, 2022 JBIO Stock Option (Right to Buy) Common Stock (10,000) $2.14 April 1, 2031 10,000 Disposed
Dec. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 905 Disposed
Dec. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Dec. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,018) $2.14 April 1, 2031 1,018 Disposed
Dec. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (36,570) $2.14 April 1, 2031 36,570 Disposed
Nov. 11, 2022 JBIO Stock Option (Right to Buy) Common Stock (6,198) $2.14 April 1, 2031 6,198 Disposed
Nov. 10, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,800) $2.14 April 1, 2031 1,800 Disposed
Nov. 9, 2022 JBIO Stock Option (Right to Buy) Common Stock (14,000) $2.14 April 1, 2031 14,000 Disposed
Nov. 8, 2022 JBIO Stock Option (Right to Buy) Common Stock (8,373) $2.14 April 1, 2031 8,373 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (906) $1.74 Sept. 3, 2030 905 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,507) $1.74 Sept. 3, 2030 1,507 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,019) $2.14 April 1, 2031 1,019 Disposed
Nov. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (14,195) $2.14 April 1, 2031 14,195 Disposed
Oct. 18, 2022 JBIO Stock Option (Right to Buy) Common Stock (5,705) $2.14 April 1, 2031 5,705 Disposed
Oct. 17, 2022 JBIO Stock Option (Right to Buy) Common Stock (4,185) $2.14 April 1, 2031 4,185 Disposed
Oct. 14, 2022 JBIO Stock Option (Right to Buy) Common Stock (110) $2.14 April 1, 2031 110 Disposed
Oct. 10, 2022 JBIO Stock Option (Right to Buy) Common Stock (4,954) $2.14 April 1, 2031 4,954 Disposed
Oct. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (10,520) $2.14 April 1, 2031 10,520 Disposed
Oct. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (905) $1.74 Sept. 3, 2030 905 Disposed
Oct. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,506) $1.74 Sept. 3, 2030 1,506 Disposed
Oct. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (6,348) $2.14 April 1, 2031 6,348 Disposed
Oct. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (4,281) $2.14 April 1, 2031 4,281 Disposed
Sept. 12, 2022 JBIO Stock Option (Right to Buy) Common Stock (7,520) $2.14 April 2, 2031 7,520 Disposed
Sept. 9, 2022 JBIO Stock Option (Right to Buy) Common Stock (258) $1.74 Sept. 3, 2030 258 Disposed
Sept. 9, 2022 JBIO Stock Option (Right to Buy) Common Stock (4,462) $2.14 April 2, 2031 4,462 Disposed
Sept. 8, 2022 JBIO Stock Option (Right to Buy) Common Stock (648) $1.74 Sept. 3, 2030 648 Disposed
Sept. 8, 2022 JBIO Stock Option (Right to Buy) Common Stock (2,472) $1.74 Sept. 3, 2030 2,472 Disposed
Sept. 7, 2022 JBIO Stock Option (Right to Buy) Common Stock (8,220) $1.74 Sept. 3, 2030 8,220 Disposed
Sept. 6, 2022 JBIO Stock Option (Right to Buy) Common Stock (9,166) $1.74 Sept. 3, 2030 9,166 Disposed
Aug. 16, 2022 JBIO Stock Option (Right to Buy) Common Stock (3,189) $1.74 Sept. 3, 2030 3,189 Disposed
Aug. 16, 2022 JBIO Stock Option (Right to Buy) Common Stock (17,811) $1.74 Sept. 3, 2030 17,811 Disposed
Aug. 11, 2022 JBIO Stock Option (Right to Buy) Common Stock (1,347) $1.74 Sept. 3, 2030 1,347 Disposed
Aug. 10, 2022 JBIO Stock Option (Right to Buy) Common Stock (12,720) $1.74 Sept. 3, 2030 12,720 Disposed
Aug. 9, 2022 JBIO Stock Option (Right to Buy) Common Stock (8,700) $1.74 Sept. 3, 2030 8,700 Disposed
Aug. 8, 2022 JBIO Stock Option (Right to Buy) Common Stock (6,943) $1.74 Sept. 3, 2030 6,943 Disposed
Dec. 14, 2021 JBIO Stock Option (Right to Buy) Common Stock (58,000) $10.61 Dec. 13, 2031 58,000 Acquired

Showing latest 100 of 103 transactions

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

Initial ownership (Form 3) 4 holdings

07

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

DateTickerSecuritySharesOwnership
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (48,293) 48,293 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (72,325) 72,325 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (48,882) 48,882 Direct
June 29, 2021 JBIO Stock Option (Right to Buy)→ Common Stock (328,921) 328,921 Direct