DXR
Daxor CorpCompany with tickers: DXR
CIK
27367
CUSIP
239467103
Shares Outstanding
5,838,224
13F Activity (30d)
14 filings
12 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: 15
Total Value: $4,062,361
Total Shares: 420,100
Institutional Ownership Trend
Holder Concentration
Across 15 13F filers · Δ vs Dec 31, 2025Top Holder
55.3%
+4.6 pts
Top 5
89.3%
−10.1 pts
Top 10
99.6%
−0.4 pts
HHI
3,391
Highly concentrated
−220
Quarterly Activity
vs Dec 31, 2025
New
8
Increased
0
Decreased
3
Sold Out
2
Unchanged
4
Holder count:
+6
Institutional value:
+184.8%
Shares held:
+334.4%
Top Buyers
vs Dec 31, 2025No qualifying movers this quarter.
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | −210 | 28,011 | |
| Mega MORGAN STANLEY | −150 | 3,087 | |
| Mega JPMORGAN CHASE & CO | −4 | 1 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid THOMPSON SIEGEL & WALMSLEY LLC | 232,120 | $2,244,600 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 48,280 | $466,867 | |
| Small Aristides Capital LLC | 41,692 | $403,161 | |
| Mid Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 25,192 | $243,606 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 13,720 | $132,672 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 49,028 | $723,163 | |
| Mega UBS Group AG | 90 | $1,327 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid THOMPSON SIEGEL & WALMSLEY LLC | $2,244,600 | 55.25% | 232,120 | Shares | Defined | 2026-05-11 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $466,867 | 11.49% | 48,280 | Shares | Defined | 2026-05-15 | ||||
| Small Aristides Capital LLC | $403,161 | 9.92% | 41,692 | Shares | Sole | 2026-05-14 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $270,866 | 6.67% | 28,011 | Shares | Sole | 2026-05-14 | ||||
| Mid Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | $243,606 | 6.00% | 25,192 | Shares | Sole | 2026-05-04 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $132,672 | 3.27% | 13,720 | Shares | Other | 2026-05-15 | ||||
| Micro NANO CAP NEW MILLENNIUM GROWTH FUND L P | $120,875 | 2.98% | 12,500 | Shares | Sole | 2026-05-15 | ||||
| Small Crescent Grove Advisors, LLC | $103,691 | 2.55% | 10,723 | Shares | Sole | 2026-05-06 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $30,247 | 0.74% | 3,128 | Shares | Defined | 2026-04-28 | ||||
| Mega MORGAN STANLEY | $29,851 | 0.73% | 3,087 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $10,027 | 0.25% | 1,037 | Shares | Defined | 2026-05-08 | ||||
| Large OSAIC HOLDINGS, INC. | $4,835 | 0.12% | 500 | Shares | Defined | 2026-05-15 | ||||
| Mid Tower Research Capital LLC (TRC) | $1,054 | 0.03% | 109 | Shares | Defined | 2026-05-15 | ||||
| Mega JPMORGAN CHASE & CO | $9 | 0.00% | 1 | Shares | Defined | 2026-05-13 | ||||
| Mega WELLS FARGO & COMPANY/MN | $0 | 0.00% | 0 | Shares | Defined | 2026-05-11 | ||||
| No holders match your search. | ||||||||||