BDRX
Biodexa Pharmaceuticals PlcCompany with tickers: BDRX
CIK
1643918
CUSIP
59564R880
Shares Outstanding
746,114
13F Activity (30d)
4 filings
4 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: 7
Total Value: $228,007
Total Shares: 368,950
Institutional Ownership Trend
3 quarters
Holder Concentration
Across 7 13F filers · Δ vs Dec 31, 2025Top Holder
69.8%
+7.3 pts
Top 5
100.0%
+0.0 pts
Top 10
100.0%
0.0 pts
HHI
5,583
Highly concentrated+596
Quarterly Activity
vs Dec 31, 2025
New
1
Increased
2
Decreased
3
Sold Out
2
Unchanged
1
Holder count:
-1
Institutional value:
-67.1%
Shares held:
+20.9%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Micro SABBY MANAGEMENT, LLC | +66,814 | 257,472 | |
| Mid GAMMA Investing LLC | +12,003 | 13,780 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mid ARMISTICE CAPITAL, LLC | −2,479 | 97,521 | |
| Mega UBS Group AG | −1,973 | 127 | |
| Mega RHUMBLINE ADVISERS | −5 | 19 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Small Caitong International Asset Management Co., Ltd | 1 | $0 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large HRT FINANCIAL LP | 10,583 | $24,023 | |
| Mid SBI Securities Co., Ltd. | 101 | $229 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Micro SABBY MANAGEMENT, LLC | $159,117 | 69.79% | 257,472 | Shares | Defined | 2026-05-15 | ||||
| Mid ARMISTICE CAPITAL, LLC | $60,267 | 26.43% | 97,521 | Shares | Sole | 2026-05-15 | ||||
| Mid GAMMA Investing LLC | $8,516 | 3.73% | 13,780 | Shares | Defined | 2026-04-06 | ||||
| Mega UBS Group AG | $78 | 0.03% | 127 | Shares | Defined | 2026-05-05 | ||||
| Small Hilton Head Capital Partners, LLC | $18 | 0.01% | 30 | Shares | Sole | 2026-04-20 | ||||
| Mega RHUMBLINE ADVISERS | $11 | 0.00% | 19 | Shares | Sole | 2026-05-12 | ||||
| Small Caitong International Asset Management Co., Ltd | $0 | 0.00% | 1 | Shares | Sole | 2026-05-11 | ||||
| No holders match your search. | ||||||||||