BRNS
Barinthus Biotherapeutics plc.Company with tickers: BRNS
CIK
1828185
CUSIP
91864C107
Shares Outstanding
40,848,893
13F Activity (30d)
14 filings
13 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 14
Total Value: $5,290,091
Total Shares: 9,297,185
Institutional Ownership Trend
20 quarters
Holder Concentration
Across 14 13F filers · Δ vs Dec 31, 2025Top Holder
55.9%
−2.3 pts
Top 5
93.2%
−4.2 pts
Top 10
99.3%
−0.7 pts
HHI
3,596
Highly concentrated−547
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
1
Decreased
0
Sold Out
1
Unchanged
7
Holder count:
+5
Institutional value:
+209.8%
Shares held:
+281.2%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small Rangeley Capital, LLC | +75,024 | 159,465 |
Top Sellers
vs Dec 31, 2025No qualifying movers this quarter.
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Large M&G PLC | 5,197,349 | $2,957,291 | |
| Micro GLR Partners, LLC | 1,243,377 | $707,481 | |
| Large RENAISSANCE TECHNOLOGIES LLC | 151,000 | $85,919 | |
| Mega CITADEL ADVISORS LLC | 118,996 | $67,708 | |
| Mid GTS SECURITIES LLC | 73,210 | $41,656 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega UBS Group AG | 3,152 | $2,206 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Large M&G PLC | $2,957,291 | 55.90% | 5,197,349 | Shares | Defined | 2026-05-13 | ||||
| Mid HSG Holding Ltd | $808,249 | 15.28% | 1,420,473 | Shares | Defined | 2026-05-15 | ||||
| Micro GLR Partners, LLC | $707,481 | 13.37% | 1,243,377 | Shares | Sole | 2026-05-13 | ||||
| Micro DC Funds, LP | $365,414 | 6.91% | 642,204 | Shares | Sole | 2026-05-14 | ||||
| Small Rangeley Capital, LLC | $90,735 | 1.72% | 159,465 | Shares | Sole | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $85,919 | 1.62% | 151,000 | Shares | Sole | 2026-05-14 | ||||
| Small Johns Hopkins University Endowment | $69,552 | 1.31% | 122,237 | Shares | Sole | 2026-05-14 | ||||
| Mega CITADEL ADVISORS LLC | $67,708 | 1.28% | 118,996 | Shares | Defined | 2026-05-15 | ||||
| Large Baird Financial Group, Inc. | $60,291 | 1.14% | 105,961 | Shares | Defined | 2026-05-14 | ||||
| Mid GTS SECURITIES LLC Broker-Dealer | $41,656 | 0.79% | 73,210 | Shares | Defined | 2026-05-15 | ||||
| Large HighTower Advisors, LLC | $21,309 | 0.40% | 37,450 | Shares | Sole | 2026-05-05 | ||||
| Mega RHUMBLINE ADVISERS | $6,648 | 0.13% | 11,685 | Shares | Sole | 2026-05-12 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $6,582 | 0.12% | 11,568 | Shares | Defined | 2026-05-15 | ||||
| Mega MORGAN STANLEY | $1,256 | 0.02% | 2,210 | Shares | Defined | 2026-05-15 | ||||
| No holders match your search. | ||||||||||