Stock chart
Ticker: ALDX Exchange: NAS


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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
2025-04-07 2025-04-03 S Sale

PERCEPTIVE ADVISORS LLC

Large shareholder
1,000 -36.7%
1.42
USD 4,828,000
1,000 -36.7% 1.42 USD 100,000
2024-08-14 2024-08-12 PS Planned sale

Greenberg Bruce

See Remarks

Officer
10,834 -7.9%
4.74
USD 51,313
10,834 -7.9% 4.74 USD 51,313
2024-08-14 2024-08-12 S Sale

Machatha Stephen

Chief Development Officer

Officer
16,041 -6.3%
4.74
USD 75,975
16,041 -6.3% 4.74 USD 75,975
2024-04-08 2024-04-05 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
37,712 +0.4%
4.74
USD 178,755
37,712 +0.4% 4.74 USD 178,755
2024-04-08 2024-04-04 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
140,281 +1.5%
4.67
USD 655,112
140,281 +1.5% 4.67 USD 655,112
2024-04-03 2024-04-03 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
309,847 +3.5%
4.09
USD 1,267,274
309,847 +3.5% 4.09 USD 1,267,274
2024-04-03 2024-04-02 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
186,051 +2.2%
3.44
USD 640,015
186,051 +2.2% 3.44 USD 640,015
2024-04-03 2024-04-01 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
8,374 +0.1%
3.25
USD 27,216
8,374 +0.1% 3.25 USD 27,216
2024-03-12 2024-03-12 S Sale

Machatha Stephen

Chief Development Officer

Officer
11,537 -4.5%
3.16
USD 36,503
11,537 -4.5% 3.16 USD 36,503
2024-03-12 2024-03-12 S Sale

Brady Todd C

President and CEO

Executive Director
85,324 -5.5%
3.05
USD 260,238
85,324 -5.5% 3.05 USD 260,238
2024-03-12 2024-03-11 S Sale

Machatha Stephen

Chief Development Officer

Officer
18,231 -6.7%
3.41
USD 62,102
18,231 -6.7% 3.41 USD 62,102
2024-03-12 2024-03-11 S Sale

Brady Todd C

President and CEO

Executive Director
97,914 -5.9%
3.27
USD 320,521
97,914 -5.9% 3.27 USD 320,521
2024-03-12 2024-03-11 S Sale

Greenberg Bruce

See Remarks

Officer
13,201 -9.9%
3.41
USD 44,968
13,201 -9.9% 3.41 USD 44,968
2023-10-18 2023-10-18 S Sale

PERCEPTIVE ADVISORS LLC

Large shareholder
306,499 -3.4%
1.74
USD 533,308
306,499 -3.4% 1.74 USD 533,308
2023-10-18 2023-10-16 S Sale

PERCEPTIVE ADVISORS LLC

Large shareholder
2,450,000 -21.6%
1.60
USD 3,920,000
2,450,000 -21.6% 1.60 USD 3,920,000
2024-10-21 2023-04-12 B Purchase

Miller-Rich Nancy

Non-Executive Director
509 +123.2%
10.13
USD 5,156
509 +123.2% 10.13 USD 5,156
2022-08-11 2022-08-10 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
15,000 +0.1%
7.85
USD 117,750
15,000 +0.1% 7.85 USD 117,750
2022-08-11 2022-08-09 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
100,000 +0.9%
7.50
USD 750,000
100,000 +0.9% 7.50 USD 750,000
2022-08-10 2022-08-08 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
97,000 +0.9%
7.24
USD 702,280
97,000 +0.9% 7.24 USD 702,280
2022-08-09 2022-08-05 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
141,000 +1.3%
6.95
USD 979,950
141,000 +1.3% 6.95 USD 979,950
2022-08-08 2022-08-04 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
95,100 +0.9%
6.17
USD 586,767
95,100 +0.9% 6.17 USD 586,767
2022-08-05 2022-08-03 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
100,000 +0.9%
5.84
USD 584,000
100,000 +0.9% 5.84 USD 584,000
2022-08-04 2022-08-02 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
412,406 +4.0%
5.59
USD 2,305,350
412,406 +4.0% 5.59 USD 2,305,350
2022-08-03 2022-08-01 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
144,185 +1.4%
5.05
USD 728,134
144,185 +1.4% 5.05 USD 728,134
2022-08-02 2022-07-29 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
222,123 +2.2%
5.03
USD 1,117,279
222,123 +2.2% 5.03 USD 1,117,279
2022-08-01 2022-07-28 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
119,392 +1.2%
5.00
USD 596,960
119,392 +1.2% 5.00 USD 596,960
2022-06-27 2022-06-23 B Purchase

Brady Todd C

President and CEO

Executive Director
17,700 +1.5%
3.36
USD 59,546
17,700 +1.5% 3.36 USD 59,546
2022-06-27 2022-06-23 B Purchase

JOYCE MARTIN JOSEPH

Non-Executive Director
4,323 +22.0%
3.48
USD 15,025
4,323 +22.0% 3.48 USD 15,025
2024-10-21 2021-05-03 B Purchase

Miller-Rich Nancy

Non-Executive Director
413 +inf%
12.81
USD 5,291
413 +inf% 12.81 USD 5,291
2021-05-04 2021-05-03 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
1,200,000 +13.8%
12.50
USD 15,000,000
1,200,000 +13.8% 12.50 USD 15,000,000
2021-01-21 2021-01-19 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
1,368,421 +18.7%
9.50
USD 13,000,000
1,368,421 +18.7% 9.50 USD 13,000,000
2021-01-11 2021-01-08 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
50,000 +0.7%
7.60
USD 380,000
50,000 +0.7% 7.60 USD 380,000
2021-01-11 2021-01-08 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
152,668 +2.1%
10.21
USD 1,558,740
152,668 +2.1% 10.21 USD 1,558,740
2021-01-11 2021-01-08 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
347,332 +5.1%
9.21
USD 3,198,928
347,332 +5.1% 9.21 USD 3,198,928
2021-01-11 2021-01-07 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
500,000 +8.0%
8.13
USD 4,065,000
500,000 +8.0% 8.13 USD 4,065,000
2020-07-13 2020-07-09 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
3,200,000 +103.7%
4.25
USD 13,600,000
3,200,000 +103.7% 4.25 USD 13,600,000
2020-03-17 2020-03-16 B Purchase

DOUGLAS RICHARD

Non-Executive Director
40,000 +47.1%
2.75
USD 110,000
40,000 +47.1% 2.75 USD 110,000
2019-12-18 2019-12-16 B Purchase

Brady Todd C

President and CEO

Executive Director
20,000 +3.2%
5.10
USD 101,908
20,000 +3.2% 5.10 USD 101,908
2019-10-02 2019-09-30 PP Planned purchase

Brady Todd C

President and CEO

Executive Director
8,710 +1.4%
5.68
USD 49,483
8,710 +1.4% 5.68 USD 49,483
2019-09-25 2019-09-23 PP Planned purchase

Brady Todd C

President and CEO

Executive Director
8,680 +1.4%
5.81
USD 50,433
8,680 +1.4% 5.81 USD 50,433
2019-09-20 2019-09-18 B Purchase

Brady Todd C

President and CEO

Executive Director
14,288 +2.4%
5.91
USD 84,465
14,288 +2.4% 5.91 USD 84,465
2019-09-19 2019-09-17 B Purchase

Bronstein Ben

1,700 +10.0%
5.85
USD 9,945
1,700 +10.0% 5.85 USD 9,945
2019-09-17 2019-09-16 B Purchase

Brady Todd C

President and CEO

Executive Director
3,000 +0.5%
6.03
USD 18,090
3,000 +0.5% 6.03 USD 18,090
2019-09-17 2019-09-13 B Purchase

DOUGLAS RICHARD

5,000 +6.2%
6.00
USD 30,000
5,000 +6.2% 6.00 USD 30,000
2019-09-17 2019-09-13 B Purchase

Brady Todd C

President and CEO

Executive Director
10,000 +1.7%
5.79
USD 57,900
10,000 +1.7% 5.79 USD 57,900
2019-09-16 2019-09-12 B Purchase

JOYCE MARTIN JOSEPH

1,700 +9.5%
5.86
USD 9,964
1,700 +9.5% 5.86 USD 9,964
2019-09-13 2019-09-12 B Purchase

DOUGLAS RICHARD

10,000 +14.3%
6.03
USD 60,276
10,000 +14.3% 6.03 USD 60,276
2019-09-13 2019-09-11 B Purchase

DOUGLAS RICHARD

10,000 +16.7%
5.75
USD 57,529
10,000 +16.7% 5.75 USD 57,529
2019-09-11 2019-09-10 B Purchase

Brady Todd C

President and CEO

Executive Director
10,000 +1.8%
5.39
USD 53,937
10,000 +1.8% 5.39 USD 53,937
2019-09-11 2019-09-10 B Purchase

DOUGLAS RICHARD

10,000 +20.0%
5.09
USD 50,857
10,000 +20.0% 5.09 USD 50,857
2019-09-11 2019-09-09 PP Planned purchase

Brady Todd C

President and CEO

Executive Director
10,000 +1.8%
4.89
USD 48,887
10,000 +1.8% 4.89 USD 48,887
2019-09-11 2019-09-09 B Purchase

DOUGLAS RICHARD

10,000 +25.0%
4.91
USD 49,106
10,000 +25.0% 4.91 USD 49,106
2019-09-10 2019-09-06 PP Planned purchase

Clark David J

Chief Medical Officer

5,000 +38.8%
5.06
USD 25,311
5,000 +38.8% 5.06 USD 25,311
2019-09-09 2019-09-05 PP Planned purchase

Reed Joshua

Chief Financial Officer

3,200 +9.8%
4.71
USD 15,072
3,200 +9.8% 4.71 USD 15,072
2019-09-09 2019-09-05 PP Planned purchase

McMullin David

Chief Commerical Officer

4,329 +238.0%
4.68
USD 20,260
4,329 +238.0% 4.68 USD 20,260
2019-03-28 2019-03-26 S Sale

TREU JESSE I

Non-Executive Director
445 -4.8%
10.01
USD 4,454
445 -4.8% 10.01 USD 4,454
2019-03-28 2019-03-26 S Sale

TREU JESSE I

Non-Executive Director
96,298 -4.9%
10.01
USD 963,943
96,298 -4.9% 10.01 USD 963,943
2017-09-21 2017-09-19 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
200,000 +6.9%
7.25
USD 1,450,000
200,000 +6.9% 7.25 USD 1,450,000
2017-07-05 2017-06-30 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
296,007 +11.4%
4.60
USD 1,361,632
296,007 +11.4% 4.60 USD 1,361,632
2017-02-21 2017-02-17 B Purchase

Tulipano Stephen J

Chief Financial Officer

3,333 +inf%
4.50
USD 14,999
3,333 +inf% 4.50 USD 14,999
2017-02-21 2017-02-17 B Purchase

JOYCE MARTIN JOSEPH

4,444 +32.9%
4.50
USD 19,998
4,444 +32.9% 4.50 USD 19,998
2017-02-21 2017-02-17 B Purchase

Bronstein Ben

4,444 +35.6%
4.50
USD 19,998
4,444 +35.6% 4.50 USD 19,998
2017-02-21 2017-02-17 B Purchase

Brady Todd C

President and CEO

Executive Director
22,223 +52.7%
4.50
USD 100,004
22,223 +52.7% 4.50 USD 100,004
2017-02-21 2017-02-17 B Purchase

DOUGLAS RICHARD

Non-Executive Director
40,000 +inf%
4.50
USD 180,000
40,000 +inf% 4.50 USD 180,000
2017-02-15 2017-02-14 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
893,025 +52.6%
4.50
USD 4,018,613
893,025 +52.6% 4.50 USD 4,018,613
2016-05-26 2016-05-26 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
700,000 +56.4%
5.00
USD 3,500,000
700,000 +56.4% 5.00 USD 3,500,000
2015-11-05 2015-10-28 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
45,100 +3.8%
6.50
USD 293,150
45,100 +3.8% 6.50 USD 293,150
2015-10-28 2015-10-26 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
50,000 +4.4%
6.46
USD 323,150
50,000 +4.4% 6.46 USD 323,150
2015-10-26 2015-10-22 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
18,020 +1.6%
6.47
USD 116,661
18,020 +1.6% 6.47 USD 116,661
2015-10-22 2015-10-20 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
22,797 +2.1%
6.44
USD 146,858
22,797 +2.1% 6.44 USD 146,858
2015-10-22 2015-10-20 B Purchase

PERCEPTIVE ADVISORS LLC

Large shareholder
14,348 +1.3%
6.30
USD 90,335
14,348 +1.3% 6.30 USD 90,335
2014-08-07 2014-08-07 B Purchase

JOYCE MARTIN JOSEPH

Non-Executive Director
1,000 +8.0%
3.95
USD 3,948
1,000 +8.0% 3.95 USD 3,948
2014-08-07 2014-08-06 B Purchase

Clarke C. Boyd

Non-Executive Director
3,000 +24.0%
3.69
USD 11,059
3,000 +24.0% 3.69 USD 11,059
2014-05-08 2014-05-07 B Purchase

Phillips Gary M.

Non-Executive Director
9,375 +inf%
8.00
USD 75,000
9,375 +inf% 8.00 USD 75,000
2014-05-08 2014-05-07 B Purchase

Brady Todd C

President and CEO

Executive Director
12,500 +482.8%
8.00
USD 100,000
12,500 +482.8% 8.00 USD 100,000
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