New Positions
5 managers initiated
Top five by reported value
Co-Diagnostics Inc NASDAQ NMS - GLOBAL MARKET:CODX
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
5 new8 added16 reduced9 exited
Total Institutional Holders
29
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$322.6K
Largest QoQ Increase
VANGUARD GROUP INC
+203,170 sh
Largest QoQ Decrease
HRT FINANCIAL LP
-149,291 sh
New Positions(5)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Summit Financial Wealth Advisors, LLC | 40,000 | +40,000 | $6.7K | +$6.7K | — |
| TWO SIGMA SECURITIES, LLC | 30,784 | +30,784 | $5.2K | +$5.2K | — |
| Baader Bank Aktiengesellschaft | 10,285 | +10,285 | $1.1K | +$1.1K | — |
| Smartleaf Asset Management LLC | 4,000 | +4,000 | $723 | +$723 | — |
| Advocate Investing Services LLC | 78 | +78 | $13 | +$13 | — |
Added To(8)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 1,909,122 | +203,170 | $322.6K | -$264.2K | 11.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 449,148 | +129,158 | $81.2K | -$28.9K | 40.4% |
| JANE STREET GROUP, LLC | 274,819 | +195,768 | $46.3K | +$19.1K | 247.6% |
| CITADEL ADVISORS LLC | 181,700 | +129,911 | $30.6K | +$12.8K | 250.8% |
| Tower Research Capital LLC (TRC) | 13,038 | +11,537 | $2.2K | +$1.7K | 768.6% |
| Regal Investment Advisors LLC | 25,000 | +9,000 | $4.2K | -$1.3K | 56.3% |
| WELLS FARGO & COMPANY/MN | 2,460 | +2,185 | $414 | +$319 | 794.5% |
| BANK OF AMERICA CORP /DE/ | 504 | +183 | $85 | -$25 | 57.0% |
Reduced(16)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Private Advisory Group LLC | 1,181,633 | 0 | $199.2K | -$207.3K | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 730,323 | -137,199 | $123.1K | -$175.3K | -15.8% |
| BlackRock, Inc. | 427,440 | 0 | $72.1K | -$75.0K | 0.0% |
| UBS Group AG | 31,454 | -86,790 | $5.3K | -$35.4K | -73.4% |
| Kestra Advisory Services, LLC | 88,199 | -46,495 | $14.9K | -$31.5K | -34.5% |
| Bank of New York Mellon Corp | 137,068 | 0 | $23.1K | -$24.0K | 0.0% |
| STATE STREET CORP | 100,647 | 0 | $17.0K | -$17.7K | 0.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 62,458 | -14,478 | $10.5K | -$15.8K | -18.8% |
| NORTHERN TRUST CORP | 54,977 | 0 | $9.3K | -$9.6K | 0.0% |
| SIMPLEX TRADING, LLC | 9,745 | -9,185 | $1.6K | +$1.6K | -48.5% |
| MORGAN STANLEY | 2,200 | -3,593 | $371 | -$1.6K | -62.0% |
| ADVISOR GROUP HOLDINGS, INC. | 300 | -1,640 | $51 | -$581 | -84.5% |
| Global Retirement Partners, LLC | 3,000 | 0 | $506 | -$526 | 0.0% |
| JPMORGAN CHASE & CO | 663 | -304 | $112 | -$220 | -31.4% |
| NewEdge Advisors, LLC | 200 | 0 | $34 | -$35 | 0.0% |
| BNP PARIBAS ARBITRAGE, SNC | 60 | 0 | $10 | -$11 | 0.0% |
Sold Out(9)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| GROUP ONE TRADING, L.P. | 0 | -54,298 | $0 | -$18.7K | — |
| SMI Advisory Services, LLC | 0 | -28,000 | $0 | -$10.8K | — |
| ENVESTNET ASSET MANAGEMENT INC | 0 | -30,840 | $0 | -$10.6K | — |
| Ground Swell Capital, LLC | 0 | -11,517 | $0 | -$4.0K | — |
| CITIGROUP INC | 0 | -1,456 | $0 | -$501 | — |
| SBI Securities Co., Ltd. | 0 | -1,397 | $0 | -$481 | — |
| Heritage Wealth Advisors | 0 | -525 | $0 | -$181 | — |
| HRT FINANCIAL LP | 0 | -149,291 | $0 | -$51 | — |
| Virtu Financial LLC | 0 | -126,524 | $0 | -$44 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 1,909,122 | $322.6K | +203,170 | 11.9% |
| Private Advisory Group LLC | 1,181,633 | $199.2K | 0 | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 730,323 | $123.1K | -137,199 | -15.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 449,148 | $81.2K | +129,158 | 40.4% |
| BlackRock, Inc. | 427,440 | $72.1K | 0 | 0.0% |
| JANE STREET GROUP, LLC | 274,819 | $46.3K | +195,768 | 247.6% |
| CITADEL ADVISORS LLC | 181,700 | $30.6K | +129,911 | 250.8% |
| Bank of New York Mellon Corp | 137,068 | $23.1K | 0 | 0.0% |
| STATE STREET CORP | 100,647 | $17.0K | 0 | 0.0% |
| Kestra Advisory Services, LLC | 88,199 | $14.9K | -46,495 | -34.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 62,458 | $10.5K | -14,478 | -18.8% |
| NORTHERN TRUST CORP | 54,977 | $9.3K | 0 | 0.0% |
| Summit Financial Wealth Advisors, LLC | 40,000 | $6.7K | +40,000 | — |
| UBS Group AG | 31,454 | $5.3K | -86,790 | -73.4% |
| TWO SIGMA SECURITIES, LLC | 30,784 | $5.2K | +30,784 | — |
| Regal Investment Advisors LLC | 25,000 | $4.2K | +9,000 | 56.3% |
| Tower Research Capital LLC (TRC) | 13,038 | $2.2K | +11,537 | 768.6% |
| SIMPLEX TRADING, LLC | 9,745 | $1.6K | -9,185 | -48.5% |
| Baader Bank Aktiengesellschaft | 10,285 | $1.1K | +10,285 | — |
| Smartleaf Asset Management LLC | 4,000 | $723 | +4,000 | — |
New & Closed Positions this quarter
Closed Positions
9 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for CODX against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.