PTGX
Protagonist Ther (PTGX)
NASDAQ
$151.44+$3.26 (+2.20%)
Price as of Sep 11, 2026 7:30 PM EDT
  • $9.6B
    Market Cap
  • 151.75%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
16.03%
10.3M
+528,468 (+5.13%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
15.37%
9.9M
-339,678 (-3.44%)
Dec 31, 2024
FARALLON CAPITAL MANAGEMENT LLC
9.87%
6.3M
0 (0.00%)
Jun 30, 2026
BLACKROCK INC.
8.95%
5.8M
+188,627 (+3.28%)
Jun 30, 2024
VANGUARD GROUP INC
8.42%
5.4M
+1.2M (+21.36%)
Dec 31, 2025
RTW INVESTMENTS, LP
7.87%
5.1M
+2,122 (+0.04%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
5.64%
3.6M
+148,087 (+4.08%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.2B (75.93%)
  • Mutual Funds370.1M (23.75%)
  • Insiders5.0M (0.32%)
  • Other0 (0.00%)

Insider Transactions

  • 0.32% (5.0M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $563.3M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
PATEL DINESH V PH D
President and CEO
Exempt
Sep 10, 2026
$0.00
7,278
$0.00
0
PATEL DINESH V PH D
President and CEO
Exempt
Sep 10, 2026
$157,059.24
7,278
$21.58
530,246
PATEL DINESH V PH D
President and CEO
Sell
Sep 10, 2026
$1.0M
7,278
$144.10
522,968
PATEL DINESH V PH D
President and CEO
Exempt
Sep 09, 2026
$1.4M
63,548
$21.58
586,516
PATEL DINESH V PH D
President and CEO
Sell
Sep 09, 2026
$9.3M
63,548
$146.18
522,968
PATEL DINESH V PH D
President and CEO
Exempt
Sep 09, 2026
$0.00
63,548
$0.00
7,278
PATEL DINESH V PH D
President and CEO
Exempt
Sep 08, 2026
$0.00
54,174
$0.00
70,826
PATEL DINESH V PH D
President and CEO
Exempt
Sep 08, 2026
$1.2M
54,174
$21.58
577,142
PATEL DINESH V PH D
President and CEO
Sell
Sep 08, 2026
$7.9M
54,174
$145.87
522,968
PATEL DINESH V PH D
President and CEO
Gift
Sep 03, 2026
$0.00
510
$0.00
522,968
Waddill William D.
Exempt
Jun 23, 2026
$0.00
9,000
$0.00
0
Waddill William D.
Exempt
Jun 23, 2026
$148,860.00
9,000
$16.54
16,825
Waddill William D.
Sell
Jun 23, 2026
$1.1M
9,000
$117.94
7,825
Waddill William D.
Exempt
Jun 10, 2026
$0.00
3,000
$0.00
0
Waddill William D.
Exempt
Jun 10, 2026
$0.00
6,000
$0.00
9,000
Waddill William D.
Exempt
Jun 10, 2026
$35,400.00
3,000
$11.80
10,825
Waddill William D.
Exempt
Jun 10, 2026
$99,240.00
6,000
$16.54
16,825
Waddill William D.
Sell
Jun 10, 2026
$969,120.00
9,000
$107.68
7,825
MOLINA ARTURO MD
Chief Medical Officer
Exempt
Mar 26, 2026
$0.00
15,000
$0.00
50,971
Ali Asif
Chief Financial Officer
Exempt
Mar 26, 2026
$0.00
19,500
$0.00
31,300
SELICK HAROLD E
Exempt
Mar 26, 2026
$0.00
24,000
$0.00
0
Ali Asif
Chief Financial Officer
Exempt
Mar 26, 2026
$0.00
5,265
$0.00
13,282
MOLINA ARTURO MD
Chief Medical Officer
Exempt
Mar 26, 2026
$120,600.00
15,000
$8.04
99,115
Ali Asif
Chief Financial Officer
Exempt
Mar 26, 2026
$374,205.00
19,500
$19.19
80,253
SELICK HAROLD E
Exempt
Mar 26, 2026
$309,120.00
24,000
$12.88
84,845
Ali Asif
Chief Financial Officer
Exempt
Mar 26, 2026
$64,075.05
5,265
$12.17
85,518
MOLINA ARTURO MD
Chief Medical Officer
Sell
Mar 26, 2026
$1.6M
15,000
$104.79
84,115
Ali Asif
Chief Financial Officer
Sell
Mar 26, 2026
$2.6M
24,765
$104.24
60,753
SELICK HAROLD E
Sell
Mar 26, 2026
$2.5M
24,000
$105.00
60,845
PATEL DINESH V PH D
President and CEO
Exempt
Mar 25, 2026
$0.00
54,641
$0.00
0