Stock chart
Ticker: JANX Exchange: NMS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2025-03-07 2025-03-07 B Purchase

RA CAPITAL MANAGEMENT, L.P.

Non-Executive Director Large shareholder
110,206 +1.1%
31.02
USD 3,418,590
110,206 +1.1% 31.02 USD 3,418,590
2025-03-07 2025-03-06 B Purchase

RA CAPITAL MANAGEMENT, L.P.

Non-Executive Director Large shareholder
372,093 +3.9%
30.78
USD 11,453,023
372,093 +3.9% 30.78 USD 11,453,023
2025-03-07 2025-03-05 B Purchase

RA CAPITAL MANAGEMENT, L.P.

Non-Executive Director Large shareholder
37,455 +0.4%
31.30
USD 1,172,342
37,455 +0.4% 31.30 USD 1,172,342
2025-03-07 2025-03-05 B Purchase

RA CAPITAL MANAGEMENT, L.P.

Non-Executive Director Large shareholder
304,287 +3.3%
30.56
USD 9,299,011
304,287 +3.3% 30.56 USD 9,299,011
2025-03-05 2025-03-03 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
901 -1.1%
32.85
USD 29,599
901 -1.1% 32.85 USD 29,599
2025-03-05 2025-03-03 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
2,433 -2.8%
31.88
USD 77,576
2,433 -2.8% 31.88 USD 77,576
2025-02-05 2025-02-03 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
100 -0.1%
43.60
USD 4,360
100 -0.1% 43.60 USD 4,360
2025-02-05 2025-02-03 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
816 -1.0%
42.77
USD 34,901
816 -1.0% 42.77 USD 34,901
2025-02-05 2025-02-03 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
2,418 -2.8%
42.08
USD 101,739
2,418 -2.8% 42.08 USD 101,739
2025-01-08 2025-01-07 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
5,000 -1.7%
60.00
USD 300,004
5,000 -1.7% 60.00 USD 300,004
2025-01-03 2025-01-02 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
200 -0.2%
57.37
USD 11,473
200 -0.2% 57.37 USD 11,473
2025-01-03 2025-01-02 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
1,000 -1.2%
56.78
USD 56,778
1,000 -1.2% 56.78 USD 56,778
2025-01-03 2025-01-02 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
3,444 -4.0%
55.76
USD 192,033
3,444 -4.0% 55.76 USD 192,033
2025-01-03 2025-01-02 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
5,768 -6.2%
54.51
USD 314,420
5,768 -6.2% 54.51 USD 314,420
2025-01-03 2025-01-02 PS Planned sale

Meyer Andrew Hollman

Chief Business Officer

Officer
2,922 -3.1%
53.76
USD 157,081
2,922 -3.1% 53.76 USD 157,081
2024-12-27 2024-12-24 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
25,000 -10.3%
56.19
USD 1,404,805
25,000 -10.3% 56.19 USD 1,404,805
2024-12-03 2024-12-03 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
15,000 -5.8%
67.00
USD 1,005,000
15,000 -5.8% 67.00 USD 1,005,000
2024-11-27 2024-11-25 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
6,719 -2.5%
52.04
USD 349,647
6,719 -2.5% 52.04 USD 349,647
2024-11-27 2024-11-25 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
18,281 -6.5%
51.43
USD 940,232
18,281 -6.5% 51.43 USD 940,232
2024-10-30 2024-10-28 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
11,103 -3.8%
53.94
USD 598,909
11,103 -3.8% 53.94 USD 598,909
2024-10-30 2024-10-28 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
13,897 -4.5%
53.22
USD 739,650
13,897 -4.5% 53.22 USD 739,650
2024-10-22 2024-10-18 B Purchase

RA CAPITAL MANAGEMENT, L.P.

Non-Executive Director Large shareholder
1,200,000 +14.8%
44.75
USD 53,700,000
1,200,000 +14.8% 44.75 USD 53,700,000
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
553,219 -20.7%
44.75
USD 24,756,550
553,219 -20.7% 44.75 USD 24,756,550
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
104,957 -20.7%
44.75
USD 4,696,826
104,957 -20.7% 44.75 USD 4,696,826
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
541,824 -20.7%
44.75
USD 24,246,624
541,824 -20.7% 44.75 USD 24,246,624
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
15,788 -0.6%
51.18
USD 808,030
15,788 -0.6% 51.18 USD 808,030
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
2,995 -0.6%
51.18
USD 153,284
2,995 -0.6% 51.18 USD 153,284
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
15,462 -0.6%
51.18
USD 791,345
15,462 -0.6% 51.18 USD 791,345
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
104,892 -3.8%
50.30
USD 5,276,068
104,892 -3.8% 50.30 USD 5,276,068
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
19,900 -3.8%
50.30
USD 1,000,970
19,900 -3.8% 50.30 USD 1,000,970
2024-10-18 2024-10-18 S Sale

Avalon Ventures XI, L.P.

Large shareholder
102,732 -3.8%
50.30
USD 5,167,420
102,732 -3.8% 50.30 USD 5,167,420
2024-10-18 2024-10-17 S Sale

Avalon Ventures XI, L.P.

Large shareholder
1,843 -22.4%
50.02
USD 92,187
1,843 -22.4% 50.02 USD 92,187
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
10,957 -63.0%
50.80
USD 556,616
10,957 -63.0% 50.80 USD 556,616
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
30,094 -1.1%
50.61
USD 1,523,057
30,094 -1.1% 50.61 USD 1,523,057
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
5,710 -1.1%
50.61
USD 288,983
5,710 -1.1% 50.61 USD 288,983
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
29,474 -1.1%
50.61
USD 1,491,679
29,474 -1.1% 50.61 USD 1,491,679
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
61,445 -2.1%
49.69
USD 3,053,202
61,445 -2.1% 49.69 USD 3,053,202
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
11,657 -2.1%
49.69
USD 579,236
11,657 -2.1% 49.69 USD 579,236
2024-10-18 2024-10-16 S Sale

Avalon Ventures XI, L.P.

Large shareholder
60,179 -2.1%
49.69
USD 2,990,295
60,179 -2.1% 49.69 USD 2,990,295
2024-09-30 2024-09-30 S Sale

Avalon Ventures XI, L.P.

Large shareholder
958 -12.2%
46.24
USD 44,298
958 -12.2% 46.24 USD 44,298
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
1,826 -20.9%
46.19
USD 84,343
1,826 -20.9% 46.19 USD 84,343
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
1,542 -0.1%
47.74
USD 73,615
1,542 -0.1% 47.74 USD 73,615
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
293 -0.1%
47.74
USD 13,988
293 -0.1% 47.74 USD 13,988
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
1,511 -0.1%
47.74
USD 72,135
1,511 -0.1% 47.74 USD 72,135
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
46,861 -1.6%
46.42
USD 2,175,288
46,861 -1.6% 46.42 USD 2,175,288
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
8,894 -1.6%
46.42
USD 412,859
8,894 -1.6% 46.42 USD 412,859
2024-09-30 2024-09-27 S Sale

Avalon Ventures XI, L.P.

Large shareholder
45,894 -1.6%
46.42
USD 2,130,399
45,894 -1.6% 46.42 USD 2,130,399
2024-09-27 2024-09-27 S Sale

Meyer Andrew Hollman

Chief Business Officer

Officer
50,000 -42.5%
45.96
USD 2,297,755
50,000 -42.5% 45.96 USD 2,297,755
2024-09-27 2024-09-27 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
795 -0.3%
47.84
USD 38,032
795 -0.3% 47.84 USD 38,032
2024-09-27 2024-09-27 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
5,248 -1.7%
46.86
USD 245,895
5,248 -1.7% 46.86 USD 245,895
2024-09-27 2024-09-27 PS Planned sale

Campbell David Alan

President and CEO

Executive Director
18,957 -5.7%
46.09
USD 873,715
18,957 -5.7% 46.09 USD 873,715
2024-09-27 2024-09-27 PS Planned sale

DiRaimondo Thomas

Chief Scientific Officer

Officer
675 -0.7%
47.22
USD 31,877
675 -0.7% 47.22 USD 31,877
2024-09-27 2024-09-27 PS Planned sale

DiRaimondo Thomas

Chief Scientific Officer

Officer
4,325 -4.2%
46.21
USD 199,840
4,325 -4.2% 46.21 USD 199,840
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
41,661 -1.4%
47.77
USD 1,990,146
41,661 -1.4% 47.77 USD 1,990,146
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
7,908 -1.4%
47.77
USD 377,765
7,908 -1.4% 47.77 USD 377,765
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
40,803 -1.4%
47.77
USD 1,949,159
40,803 -1.4% 47.77 USD 1,949,159
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
50,539 -1.7%
46.78
USD 2,364,214
50,539 -1.7% 46.78 USD 2,364,214
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
9,592 -1.7%
46.78
USD 448,714
9,592 -1.7% 46.78 USD 448,714
2024-09-30 2024-09-26 S Sale

Avalon Ventures XI, L.P.

Large shareholder
49,497 -1.7%
46.78
USD 2,315,470
49,497 -1.7% 46.78 USD 2,315,470
2024-10-24 2024-09-13 S Sale

Lichter Jay

Large shareholder
3,815 -35.3%
46.68
USD 178,084
3,815 -35.3% 46.68 USD 178,084
2024-09-12 2024-09-12 S Sale

Avalon Ventures XI, L.P.

Large shareholder
161,356 -5.1%
47.00
USD 7,583,732
161,356 -5.1% 47.00 USD 7,583,732
2024-09-12 2024-09-12 S Sale

Avalon Ventures XI, L.P.

Large shareholder
30,613 -5.1%
47.00
USD 1,438,811
30,613 -5.1% 47.00 USD 1,438,811
2024-09-12 2024-09-12 S Sale

Avalon Ventures XI, L.P.

Large shareholder
158,031 -5.1%
47.00
USD 7,427,457
158,031 -5.1% 47.00 USD 7,427,457
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
35,047 -1.1%
46.66
USD 1,635,293
35,047 -1.1% 46.66 USD 1,635,293
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
6,649 -1.1%
46.66
USD 310,242
6,649 -1.1% 46.66 USD 310,242
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
34,326 -1.1%
46.66
USD 1,601,651
34,326 -1.1% 46.66 USD 1,601,651
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
11,557 -0.4%
46.13
USD 533,124
11,557 -0.4% 46.13 USD 533,124
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
2,193 -0.4%
46.13
USD 101,163
2,193 -0.4% 46.13 USD 101,163
2024-09-12 2024-09-10 S Sale

Avalon Ventures XI, L.P.

Large shareholder
11,319 -0.4%
46.13
USD 522,145
11,319 -0.4% 46.13 USD 522,145
2024-09-10 2024-09-09 S Sale

Avalon Ventures XI, L.P.

Large shareholder
2,182 -23.8%
42.33
USD 92,364
2,182 -23.8% 42.33 USD 92,364
2024-09-10 2024-09-06 S Sale

Avalon Ventures XI, L.P.

Large shareholder
110,644 -3.3%
42.00
USD 4,647,048
110,644 -3.3% 42.00 USD 4,647,048
2024-09-10 2024-09-06 S Sale

Avalon Ventures XI, L.P.

Large shareholder
20,991 -3.3%
42.00
USD 881,622
20,991 -3.3% 42.00 USD 881,622
2024-09-10 2024-09-06 S Sale

Avalon Ventures XI, L.P.

Large shareholder
108,365 -3.3%
42.00
USD 4,551,330
108,365 -3.3% 42.00 USD 4,551,330
2024-06-05 2024-06-03 S Sale

Lichter Jay

Non-Executive Director Large shareholder
691,525 -17.2%
54.75
USD 37,860,994
691,525 -17.2% 54.75 USD 37,860,994
2024-06-05 2024-06-03 S Sale

Lichter Jay

Non-Executive Director Large shareholder
131,196 -17.2%
54.75
USD 7,182,981
131,196 -17.2% 54.75 USD 7,182,981
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