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SERA PROGNSTCS-A (SERA)
NASDAQ
$1.85+$0.005 (+0.27%)
Price as of Jun 23, 2026 4:10 PM EDT- $70.7MMarket Cap
- -9.36%1-Year Change
- Medical DevicesIndustry
SERA PROGNSTCS-A (SERA)
$1.85+$0.005 (+0.27%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BAKER BROS. ADVISORS LP | 14.40% | 5.5M | 0 (0.00%) | Mar 31, 2026 |
WHETSTONE CAPITAL ADVISORS, LLC | 8.66% | 3.3M | -152,824 (-4.62%) | Mar 31, 2026 |
ABRDN PLC | 6.68% | 2.6M | +271,076 (+10.63%) | Mar 31, 2026 |
INTERWEST VENTURE MANAGEMENT CO | 6.33% | 2.4M | 0 (0.00%) | Sep 30, 2023 |
N/A | 6.28% | 2.4M | +2.4M (+100.00%) | Mar 31, 2026 |
VIVO CAPITAL, LLC | 4.32% | 1.7M | 0 (0.00%) | Mar 31, 2026 |
BLACKROCK FUNDING, INC. /DE | 4.10% | 1.6M | +24,029 (+1.54%) | Dec 31, 2024 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
TEKLA HEALTHCARE INVESTORS | 3.39% | 1.3M | +150,071 (+11.58%) | Mar 31, 2026 |
Tekla Healthcare Opportunities Fund | 3.29% | 1.3M | +121,005 (+9.64%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 3.12% | 1.2M | +144,700 (+12.14%) | Mar 31, 2026 |
Invesco Exchange-Traded Fund Trust II | 1.56% | 594,042 | 0 (0.00%) | Jan 31, 2026 |
FIDELITY SALEM STREET TRUST | 0.77% | 295,104 | 0 (0.00%) | Mar 31, 2026 |
JPMorgan Trust I | 0.74% | 282,251 | 0 (0.00%) | Jan 31, 2026 |
FIDELITY CONCORD STREET TRUST | 0.72% | 276,375 | +1,696 (+0.61%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions250.1M (85.51%)
- Mutual Funds34.7M (11.87%)
- Insiders7.6M (2.61%)
- Other0 (0.00%)
Insider Transactions
- 2.61% (7.6M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 9Number of InsiderSelling (last 12 months)
- $28.8MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
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 |
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 |
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 |
Jackson Benjamin General Counsel | 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 |
Aerts Austin Chief Financial Officer | 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 |
Jackson Benjamin General Counsel | Award | Mar 12, 2026 | $0.00 | 44,215 | $0.00 | 158,935 |
Anderson Dyaarl Lee Jr. Chief Commercial Officer | Award | Mar 12, 2026 | $0.00 | 12,455 | $0.00 | 79,569 |
Aerts Austin Chief Financial Officer | Award | Mar 12, 2026 | $0.00 | 44,215 | $0.00 | 308,667 |
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 |
Harrison Robert Gardner Chief Information Officer | Sell | Mar 09, 2026 | $6,585.60 | 3,360 | $1.96 | 77,428 |
Boniface John J. Chief Scientific Officer | Sell | Mar 09, 2026 | $5,954.48 | 3,038 | $1.96 | 147,359 |
Jackson Benjamin General Counsel | Sell | Mar 09, 2026 | $6,113.24 | 3,119 | $1.96 | 115,747 |
Kearney Paul Chief Data Officer | Sell | Mar 09, 2026 | $3,970.96 | 2,026 | $1.96 | 165,357 |
Harrison Robert Gardner Chief Information Officer | Sell | Feb 24, 2026 | $4,680.00 | 2,000 | $2.34 | 80,788 |
Kamdar Kim P. | Other | Feb 04, 2026 | $0.00 | 30,920 | $0.00 | 0 |
Kamdar Kim P. | Other | Feb 04, 2026 | $0.00 | 3,231 | $0.00 | 32,573 |
Harrison Robert Gardner Chief Information Officer | Sell | Jan 27, 2026 | $5,940.00 | 2,000 | $2.97 | 82,788 |
Harrison Robert Gardner Chief Information Officer | Sell | Dec 30, 2025 | $6,000.00 | 2,000 | $3.00 | 84,788 |
Kearney Paul Chief Data Officer | Exempt | Nov 26, 2025 | $0.00 | 1,986 | $0.00 | 32,203 |