← All stocks

Praxis Precision Medicines, Inc.

PRAX Net selling
CIK 0001689548 #930 in the set updated 17 Sep 2026
Bought (120 mo)
$602.91K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$61.61M
$0.00 on a plan · $12.16M straight out of an exercise
Sold at will
$49.45M
21 of 41 sales
Net
−$61.00M
−$48.84M against sales at will

By person

20 insiders · 60 transactions
27.0×

Marcio Souza holds 27.0 times base salary in stock. $17.84M of shares against $659.20K in salary for 2025.

Salary from the company's own proxy. The shares are what Marcio Souza last reported holding, valued at $315.71, the price Common Stock was last bought or sold at on the open market here, on 24 Jun 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Adage Capital Management, L.P. entity
10% owner
$33.20M (10)
−$33.20M
2,060,175
7.38%
$650.41M
+18.0%
BSOF Parallel Master Fund L.P. entity
10% owner
$16.25M (11)
−$16.25M
0
0.0000%
$0.00
Nemiroff Alex
General Counsel and Secretary
$12.23K (1)
$5.51M (5) scheduled
−$5.50M
26,011
0.0932%
$8.21M
DeSimone Jill
Director
$25.38K (1)
$3.61M (12) scheduled
−$3.59M
2,337
0.0084%
$737.80K
Mastrocola Lauren
Principal Accounting Officer
$5.78K (1)
$3.04M (3) scheduled
−$3.03M
13,573
0.0486%
$4.28M
Souza Marcio
Chief Executive Officer
$371.81K (6)
+$371.81K
56,495
0.2023%
$17.84M
Kelly Timothy Edwin
Chief Financial Officer
$100.72K (3)
+$100.72K
31,167
0.1116%
$9.84M
MITCHELL DEAN J
Director
$87.00K (2)
+$87.00K
18,622
0.0667%
$5.88M
Clarus Lifesciences III, L.P.
10% owner
4,894,109
17.53%
$1.55B
Vitorovic Stefan
Director
2,689,329
9.63%
$849.03M
Novo Holdings A/S entity
10% owner
2,442,080
8.75%
$770.98M
Ravina Bernard
Chief Medical Officer
99,476
0.3563%
$31.41M
+802.6%
Sweeny Nicole
Chief Commercial Officer
38,619
0.1383%
$12.19M
Sniecinski Megan
Chief Operating Officer
28,664
0.1027%
$9.05M
+37.0%
YOUNG WILLIAM D
Director
3,269
0.0117%
$1.03M
Arbuckle Stuart A
Director
2,537
0.0091%
$800.94K
KINDLER JEFFREY B
Director
2,537
0.0091%
$800.94K
Norden Gregory
Director
1,559
0.0056%
$492.18K
Chodakewitz Jeffrey
Director
1,371
0.0049%
$432.83K
Cudkowicz Merit Ester
Director
1,371
0.0049%
$432.83K
Insider
Date
Role
Action
Shares
Price
Amount
DeSimone Jill
5 Oct 2023
Director
Buy
14,500
$1.75
$25.38K
Souza Marcio
27 Jun 2023
Chief Executive Officer
Buy indirect
10,000
$1.06
$10.59K
Kelly Timothy Edwin
24 Mar 2023
Chief Financial Officer
Buy
8,000
$0.87
$7.00K
MITCHELL DEAN J
24 Mar 2023
Director
Buy
50,000
$0.84
$41.82K
Souza Marcio
23 Mar 2023
Chief Executive Officer
Buy indirect
35,002
$0.86
$30.21K
Souza Marcio
23 Mar 2023
Chief Executive Officer
Buy
35,000
$0.86
$30.16K
Mastrocola Lauren
16 Jun 2022
Principal Accounting Officer
Buy
3,000
$1.93
$5.78K
Nemiroff Alex
13 Jun 2022
General Counsel and Secretary
Buy
7,500
$1.63
$12.23K
Kelly Timothy Edwin
9 Jun 2022
Chief Financial Officer
Buy
10,000
$1.77
$17.65K
MITCHELL DEAN J
8 Jun 2022
Director
Buy
25,000
$1.81
$45.19K
Souza Marcio
8 Jun 2022
Chief Executive Officer
Buy
27,000
$1.85
$49.89K
Kelly Timothy Edwin
31 Aug 2021
Chief Financial Officer
Buy
3,905
$19.48
$76.07K
Souza Marcio
18 Aug 2021
Chief Executive Officer
Buy
9,542
$15.79
$150.67K
Souza Marcio
10 Nov 2020
Chief Executive Officer
Buy
3,846
$26.08
$100.30K

What was left out

Form 4 filings counted 181
Amendments (4/A) skipped 2
Filings about a different issuer 0
Unreadable filings 0
Joint filings 11
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 20
Sales at will 21
Transactions with no price 0
Shares from compensation/vesting 24,162,453
Sales filed before the plan box existed 11
History held since 20 Oct 2020