SERA
SERA PROGNSTCS-A (SERA)
NASDAQ
$2.03-$0.02 (-0.74%)
Price as of Oct 23, 2026 4:10 PM EDT
  • $78.5M
    Market Cap
  • -39.10%
    1-Year Change
  • Medical Devices
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BAKER BROS. ADVISORS LP
14.29%
5.5M
0 (0.00%)
Jun 30, 2026
WHETSTONE CAPITAL ADVISORS, LLC
8.59%
3.3M
0 (0.00%)
Jun 30, 2026
ABERDEEN GROUP PLC
7.16%
2.8M
+202,750 (+7.36%)
Jun 30, 2026
ABRDN PLC
7.16%
2.8M
+202,750 (+7.36%)
Jun 30, 2026
INTERWEST VENTURE MANAGEMENT CO
6.28%
2.4M
0 (0.00%)
Sep 30, 2023
VIVO CAPITAL, LLC
4.29%
1.7M
0 (0.00%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
4.07%
1.6M
+24,029 (+1.54%)
Dec 31, 2024

Current Ownership Distribution

  • Institutions269.9M (83.86%)
  • Mutual Funds44.4M (13.78%)
  • Insiders7.6M (2.36%)
  • Other0 (0.00%)

Insider Transactions

  • 2.36% (7.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 9
    Number of InsiderSelling (last 12 months)
  • $18.1M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Inglis Tiffany Eul Davis
Chief Medical Officer
Sell
Oct 12, 2026
$16,288.72
8,024
$2.03
83,565
Inglis Tiffany Eul Davis
Chief Medical Officer
Sell
Sep 10, 2026
$972.00
486
$2.00
91,589
Jackson Benjamin
General Counsel
Sell
Sep 10, 2026
$4,380.00
2,190
$2.00
159,566
Lindgardt Zhenya
Chief Executive Officer
Sell
Sep 10, 2026
$14,044.00
7,022
$2.00
837,848
Anderson Dyaarl Lee Jr.
Chief Commercial Officer
Sell
Sep 10, 2026
$3,600.00
1,800
$2.00
76,198
Lindgardt Zhenya
Chief Executive Officer
Sell
Sep 08, 2026
$40,278.00
20,139
$2.00
844,870
Kamdar Kim P.
Award
Jul 10, 2026
$0.00
34,494
$0.00
34,494
Kamdar Kim P.
Award
Jul 10, 2026
$0.00
5,263
$0.00
5,263
Kamdar Kim P.
Award
Jul 10, 2026
$0.00
22,426
$0.00
54,999
Kamdar Kim P.
Award
Jul 10, 2026
$0.00
3,421
$0.00
58,420
Inglis Tiffany Eul Davis
Chief Medical Officer
Sell
Jun 11, 2026
$727.62
362
$2.01
92,075
Jackson Benjamin
General Counsel
Sell
Jun 11, 2026
$4,379.79
2,179
$2.01
161,756
Anderson Dyaarl Lee Jr.
Chief Commercial Officer
Sell
Jun 11, 2026
$9,525.39
4,739
$2.01
77,998
Aerts Austin
Chief Financial Officer
Sell
Jun 11, 2026
$4,094.37
2,037
$2.01
301,190
Lindgardt Zhenya
Chief Executive Officer
Sell
Jun 11, 2026
$14,049.90
6,990
$2.01
865,009
Aerts Austin
Chief Financial Officer
Sell
Jun 09, 2026
$11,315.20
5,440
$2.08
303,227
Inglis Tiffany Eul Davis
Chief Medical Officer
Award
Mar 12, 2026
$0.00
27,034
$0.00
27,034
Aerts Austin
Chief Financial Officer
Award
Mar 12, 2026
$0.00
68,550
$0.00
68,550
Anderson Dyaarl Lee Jr.
Chief Commercial Officer
Award
Mar 12, 2026
$0.00
19,310
$0.00
19,310
Jackson Benjamin
General Counsel
Award
Mar 12, 2026
$0.00
68,550
$0.00
68,550
Inglis Tiffany Eul Davis
Chief Medical Officer
Award
Mar 12, 2026
$0.00
17,437
$0.00
92,437
Aerts Austin
Chief Financial Officer
Award
Mar 12, 2026
$0.00
44,215
$0.00
308,667
Anderson Dyaarl Lee Jr.
Chief Commercial Officer
Award
Mar 12, 2026
$0.00
12,455
$0.00
79,569
Jackson Benjamin
General Counsel
Award
Mar 12, 2026
$0.00
44,215
$0.00
158,935
Aerts Austin
Chief Financial Officer
Sell
Mar 11, 2026
$2,078.76
1,019
$2.04
264,452
Jackson Benjamin
General Counsel
Sell
Mar 11, 2026
$2,095.08
1,027
$2.04
114,720
Lindgardt Zhenya
Chief Executive Officer
Sell
Mar 11, 2026
$6,064.92
2,973
$2.04
738,314
Aerts Austin
Chief Financial Officer
Sell
Mar 10, 2026
$11,531.10
6,069
$1.90
265,471
Lindgardt Zhenya
Chief Executive Officer
Sell
Mar 10, 2026
$43,014.10
22,639
$1.90
741,287
Aerts Austin
Chief Financial Officer
Sell
Mar 09, 2026
$1,321.04
674
$1.96
271,540