SYRE
Spyre Therap (SYRE)
NASDAQ
$95.26+$1.53 (+1.64%)
Price as of Jul 14, 2026 5:38 AM EDT
  • $8.1B
    Market Cap
  • 471.18%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
FMR LLC
19.50%
11.8M
+142,205 (+1.21%)
Mar 31, 2026
BLACKROCK, INC.
9.14%
5.5M
-880 (-0.02%)
Mar 31, 2026
RTW INVESTMENTS, LP
6.91%
4.2M
0 (0.00%)
Mar 31, 2026
VANGUARD GROUP INC
6.68%
4.0M
+984,344 (+24.39%)
Dec 31, 2025
FAIRMOUNT FUNDS MANAGEMENT LLC
6.65%
4.0M
0 (0.00%)
Mar 31, 2026
PERCEPTIVE ADVISORS LLC
6.26%
3.8M
+714,000 (+18.87%)
Mar 31, 2026
VR ADVISER, LLC
6.10%
3.7M
0 (0.00%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions500.3M (81.83%)
  • Mutual Funds105.5M (17.25%)
  • Insiders5.6M (0.92%)
  • Other0 (0.00%)

Insider Transactions

  • 0.92% (5.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 5
    Number of InsiderSelling (last 12 months)
  • $614.8M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Burrows Scott L
Chief Financial Officer
Exempt
Jul 01, 2026
$0.00
7,500
$0.00
352,357
Burrows Scott L
Chief Financial Officer
Exempt
Jul 01, 2026
$108,750.00
7,500
$14.50
105,494
Burrows Scott L
Chief Financial Officer
Sell
Jul 01, 2026
$505,601.25
5,775
$87.55
99,719
Burrows Scott L
Chief Financial Officer
Sell
Jul 01, 2026
$152,438.25
1,725
$88.37
97,994
Burrows Scott L
Chief Financial Officer
Exempt
Jun 25, 2026
$0.00
15,000
$0.00
359,857
Burrows Scott L
Chief Financial Officer
Exempt
Jun 25, 2026
$217,500.00
15,000
$14.50
112,994
Burrows Scott L
Chief Financial Officer
Sell
Jun 25, 2026
$435,600.00
5,000
$87.12
107,994
Burrows Scott L
Chief Financial Officer
Sell
Jun 25, 2026
$871,400.00
10,000
$87.14
97,994
Fairmount Funds Management LLC
Conversion
Jun 23, 2026
$0.00
16,667
$0.00
0
Fairmount Funds Management LLC
Conversion
Jun 23, 2026
$0.00
666,680
$0.00
4.7M
Fairmount Funds Management LLC
Sell
Jun 23, 2026
$399.7M
4.7M
$85.31
0
HENDERSON MICHAEL THOMAS
Sell
Jun 22, 2026
$2.0M
20,000
$100.00
68,606
Turtle Cameron
Chief Executive Officer
Sell
Apr 01, 2026
$607,324.80
12,344
$49.20
630,196
Sloan Sheldon
Chief Medical Officer
Exempt
Apr 01, 2026
$0.00
7,958
$0.00
87,542
Turtle Cameron
Chief Executive Officer
Sell
Apr 01, 2026
$132,587.52
2,656
$49.92
627,540
Sloan Sheldon
Chief Medical Officer
Exempt
Apr 01, 2026
$172,370.28
7,958
$21.66
7,958
Sloan Sheldon
Chief Medical Officer
Sell
Apr 01, 2026
$397,900.00
7,958
$50.00
0
Burrows Scott L
Chief Financial Officer
Exempt
Mar 03, 2026
$0.00
2,500
$0.00
402,357
Burrows Scott L
Chief Financial Officer
Exempt
Mar 03, 2026
$36,250.00
2,500
$14.50
100,494
Burrows Scott L
Chief Financial Officer
Sell
Mar 03, 2026
$93,288.00
2,300
$40.56
98,194
Burrows Scott L
Chief Financial Officer
Sell
Mar 03, 2026
$8,332.00
200
$41.66
97,994
Turtle Cameron
Chief Executive Officer
Sell
Feb 02, 2026
$30,451.74
957
$31.82
671,583
Turtle Cameron
Chief Executive Officer
Sell
Feb 02, 2026
$461,593.41
14,043
$32.87
657,540
Sloan Sheldon
Chief Medical Officer
Award
Jan 09, 2026
$0.00
140,000
$0.00
140,000
Burrows Scott L
Chief Financial Officer
Award
Jan 09, 2026
$0.00
140,000
$0.00
140,000
Turtle Cameron
Chief Executive Officer
Award
Jan 09, 2026
$0.00
528,000
$0.00
528,000
King-Jones Heidy
See Remarks
Award
Jan 09, 2026
$0.00
140,000
$0.00
140,000
Turtle Cameron
Chief Executive Officer
Sell
Jan 02, 2026
$387,243.23
12,709
$30.47
674,198
Turtle Cameron
Chief Executive Officer
Sell
Jan 02, 2026
$69,651.89
2,191
$31.79
672,007
Turtle Cameron
Chief Executive Officer
Sell
Jan 02, 2026
$3,239.00
100
$32.39
671,907