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Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.
Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.
About 36% of BIOR shares are held by financial institutions. BARCLAYS PLC is the top corporate investor, holding 6.01K shares valued at $3.02K. A 0.16% stake in Biora Therapeutics, Inc. is owned by the company. STEWARD PARTNERS INVESTMENT ADVISORY, LLC owns 0 shares valued at -, which translates its holding of 0% of the stake in the company.
| Date | Holder | % Stake | Shares Held | Total Value ($) | Shares | % Change in Portfolio |
|---|---|---|---|---|---|---|
| Sep 30, 2025 | BARCLAYS PLC | 0.16% | 6.01K | 3.02K | 6.01K | +100.00% |
| Dec 31, 2024 | STEWARD PARTNERS INVESTMENT ADVISORY, LLC | 0% | 0 | - | -32 | -100.00% |
| Dec 31, 2024 | CITADEL ADVISORS LLC | 0% | 0 | - | -300 | -100.00% |
| Dec 31, 2024 | XTX TOPCO LTD | 0% | 0 | - | -21.17K | -100.00% |
| Dec 31, 2024 | TUCKER ASSET MANAGEMENT LLC | 0% | 0 | - | -2 | -100.00% |
| Dec 31, 2024 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0% | 0 | - | -93.5K | -100.00% |
| Dec 31, 2024 | TWO SIGMA SECURITIES, LLC | 0% | 0 | - | -16.79K | -100.00% |
| Dec 31, 2024 | ADVISOR GROUP HOLDINGS, INC. | 0.02% | 647 | 323 | 0 | 0 |
| Dec 31, 2024 | JPMORGAN CHASE & CO | 0% | 0 | - | -22 | -100.00% |
| Dec 31, 2024 | BANK OF AMERICA CORP /DE/ | 0% | 0 | - | -1.59K | -100.00% |
| Dec 31, 2024 | WELLS FARGO & COMPANY/MN | 0% | 0 | - | -4K | -100.00% |
| Dec 31, 2024 | NORTHERN TRUST CORP | 0% | 0 | - | -68.57K | -100.00% |
| Dec 31, 2024 | STATE STREET CORP | 0% | 0 | - | -51.57K | -100.00% |
| Dec 31, 2024 | VANGUARD GROUP INC | 0% | 0 | - | -697.33K | -100.00% |
| Dec 31, 2024 | GEODE CAPITAL MANAGEMENT, LLC | 0% | 0 | - | -156.3K | -100.00% |
| Dec 31, 2024 | LPL FINANCIAL LLC | 0% | 0 | - | -20.7K | -100.00% |
| Dec 31, 2024 | BARCLAYS PLC | 0% | 0 | - | -6.01K | -100.00% |
| Dec 31, 2024 | MORGAN STANLEY | 0% | 0 | - | -145.03K | -100.00% |
| Dec 31, 2024 | RIGGS ASSET MANAGMENT CO. INC. | 0% | 0 | - | -400 | -100.00% |
| Dec 31, 2024 | TD WATERHOUSE CANADA INC. | 0% | 0 | - | -1.12K | -100.00% |
| Dec 31, 2024 | HRT FINANCIAL LP | 0% | 0 | - | -33.8K | -100.00% |
| Dec 31, 2024 | BLACKROCK, INC. | 0% | 0 | - | -61.61K | -100.00% |
| Mar 31, 2023 | HRT FINANCIAL LP | 0% | 0 | - | -73.6K | -100.00% |
| Mar 31, 2023 | HAP TRADING, LLC | 0% | 0 | - | -46.3K | -100.00% |
| Mar 31, 2023 | SIMPLEX TRADING, LLC | 0% | 0 | - | -32.83K | -100.00% |
| Mar 31, 2023 | TOWER RESEARCH CAPITAL LLC (TRC) | 0% | 0 | - | -61K | -100.00% |
| Mar 31, 2023 | CUTLER GROUP LLC / CA | 0% | 0 | - | -4.6K | -100.00% |
| Mar 31, 2023 | SABBY MANAGEMENT, LLC | 0% | 0 | - | -98.99K | -100.00% |
| Mar 31, 2023 | JANE STREET GROUP, LLC | 0% | 0 | - | -10.72K | -100.00% |
| Mar 31, 2023 | ARMISTICE CAPITAL, LLC | 0% | 0 | - | -8.37M | -100.00% |
| Mar 31, 2023 | RIGGS ASSET MANAGMENT CO. INC. | 0% | 0 | - | -550 | -100.00% |
| Mar 31, 2023 | UBS GROUP AG | 0% | 0 | - | -1 | -100.00% |
| Mar 31, 2023 | NEWEDGE ADVISORS, LLC | 0% | 0 | - | -462 | -100.00% |
| Mar 31, 2023 | HORAN SECURITIES, INC. | 0% | 0 | - | -20 | -100.00% |
| Mar 31, 2023 | ADVISOR GROUP HOLDINGS, INC. | 0% | 0 | - | -17.19K | -100.00% |
| Mar 31, 2023 | ATHYRIUM CAPITAL MANAGEMENT, LP | 0% | 0 | - | -42.36M | -100.00% |
| Mar 31, 2023 | LEONARD RICKEY INVESTMENT ADVISORS P.L.L.C. | 0% | 0 | - | -32.63K | -100.00% |
| Mar 31, 2023 | CNB BANK | 0% | 0 | - | -975 | -100.00% |
| Mar 31, 2023 | ROCKEFELLER CAPITAL MANAGEMENT L.P. | 0% | 0 | - | -180 | -100.00% |
| Mar 31, 2023 | STATE STREET CORP | 0% | 0 | - | -439.35K | -100.00% |
| Mar 31, 2023 | VANGUARD GROUP INC | 0% | 0 | - | -5.9M | -100.00% |
| Mar 31, 2023 | WELLS FARGO & COMPANY/MN | 0% | 0 | - | -38.5K | -100.00% |
| Mar 31, 2023 | NORTHERN TRUST CORP | 0% | 0 | - | -217.15K | -100.00% |
| Mar 31, 2023 | VICTORY CAPITAL MANAGEMENT INC | 0% | 0 | - | -18.85K | -100.00% |
| Mar 31, 2023 | ADVISORNET FINANCIAL, INC | 0% | 0 | - | -3.86K | -100.00% |
| Mar 31, 2023 | INDEPENDENT ADVISOR ALLIANCE | 0% | 0 | - | -78.36K | -100.00% |
| Mar 31, 2023 | STEWARD PARTNERS INVESTMENT ADVISORY, LLC | 0% | 0 | - | -800 | -100.00% |
| Mar 31, 2023 | RENAISSANCE TECHNOLOGIES LLC | 0% | 0 | - | -55.5K | -100.00% |
| Mar 31, 2023 | BARCLAYS PLC | 0% | 0 | - | -144.93K | -100.00% |
| Mar 31, 2023 | FMR LLC | 0% | 0 | - | -8 | -100.00% |
| Mar 31, 2023 | MONEY CONCEPTS CAPITAL CORP | 0% | 0 | - | -92 | -100.00% |
| Mar 31, 2023 | CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0% | 0 | - | 0 | 0 |
| Mar 31, 2023 | MORGAN STANLEY | 0% | 0 | - | -15.28K | -100.00% |
| Mar 31, 2023 | GROUP ONE TRADING, L.P. | 0% | 0 | - | -35.88K | -100.00% |
| Mar 31, 2023 | ROYAL BANK OF CANADA | 0% | 0 | - | -18 | -100.00% |
| Mar 31, 2023 | GSA CAPITAL PARTNERS LLP | 0% | 0 | - | -2.09M | -100.00% |
| Mar 31, 2023 | BLACKROCK INC. | 0% | 0 | - | -1.63M | -100.00% |
| Mar 31, 2023 | BANK OF NEW YORK MELLON CORP | 0% | 0 | - | -56.46K | -100.00% |
| Mar 31, 2023 | LPL FINANCIAL LLC | 0% | 0 | - | -22.98K | -100.00% |
| Mar 31, 2023 | US BANCORP \DE\ | 0% | 0 | - | -387 | -100.00% |
| Mar 31, 2023 | BANK OF AMERICA CORP /DE/ | 0% | 0 | - | -366 | -100.00% |
| Mar 31, 2023 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0% | 0 | - | -432K | -100.00% |
| Mar 31, 2023 | BLUEFIN CAPITAL MANAGEMENT, LLC | 0% | 0 | - | -33.82K | -100.00% |
| Mar 31, 2023 | GEODE CAPITAL MANAGEMENT, LLC | 0% | 0 | - | -1.1M | -100.00% |
| Mar 31, 2023 | MILLENNIUM MANAGEMENT LLC | 0% | 0 | - | -1.85M | -100.00% |
| Mar 31, 2023 | CITADEL ADVISORS LLC | 0% | 0 | - | -161.64K | -100.00% |
| Mar 31, 2023 | WEALTHTRUST AXIOM LLC | 0% | 0 | - | -10K | -100.00% |
| Mar 31, 2023 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0% | 0 | - | -56.1K | -100.00% |
| Mar 31, 2023 | TWO SIGMA SECURITIES, LLC | 0% | 0 | - | -89.08K | -100.00% |
Among the BIOR insiders holding of 0.1% of the stake in company, HERSCHKOWITZ SAMUEL, 10 percent owner, holds the largest shares of 46.6M. STYLLI HARRY, Chairman & CEO, is the second largest BIOR insider with ownership of 14.62M shares. ATHYRIUM OPPORTUNITIES III CO-INVEST 1 LP, 10 percent owner, stands third with possession of 12.51M shares of that stake.
| Insiders | Designation | Shares Held |
|---|---|---|
| HERSCHKOWITZ SAMUEL | 10 percent owner | 46.6M |
| STYLLI HARRY | Chairman & CEO | 14.62M |
| ATHYRIUM OPPORTUNITIES III CO-INVEST 1 LP | 10 percent owner | 12.51M |
| ATHYRIUM CAPITAL MANAGEMENT, LP | 10 percent owner | 8.1M |
| ATHYRIUM OPPORTUNITIES FUND (A) LP | 10 percent owner | 8.1M |
| CARON PARTNERS LP | 10 percent owner | 6.16M |
| ROI PARTNERS L P | 10 percent owner | 302.57K |
| SILVESTRY DAMON | Chief Operating Officer | 197.48K |
| SARNA SURBHI | 148.77K | |
| MORGENS EDWIN H | director | 136.86K |
| COOPER MATTHEW T | Chief Scientific Officer | 53.43K |
| ALTER JEFFREY D. | director | 38.34K |
| WILLETT WILLIAM H | director | 10K |
| LARGIADER JEFF | VP Sales & Marketing | 2.5K |
| SIGHT JAMES W | director | 0 |
| WEINGARTEN ALLAN D | director | 0 |
| Date | Insider | Type | Cost | Shares | Value ($) | Shares Total |
|---|---|---|---|---|---|---|
| Nov 09, 2022 | ATHYRIUM OPPORTUNITIES III CO-INVEST 1 LP | PURCHASE | 0.33 | 12.51M | 4.13M | 12.51M |
| Jul 05, 2022 | SARNA SURBHI | SALE | 0.61 | 7.52K | 4.59K | 148.77K |
| Jun 14, 2021 | ATHYRIUM OPPORTUNITIES FUND (A) LP | PURCHASE | 2.84 | 8.1M | 23M | 8.1M |
| Jun 14, 2021 | ATHYRIUM CAPITAL MANAGEMENT, LP | PURCHASE | 2.84 | 8.1M | 23M | 8.1M |
| Jun 01, 2021 | ATHYRIUM CAPITAL MANAGEMENT, LP | PURCHASE | 2.86 | 961.81K | 2.75M | 28.3M |
| Jun 01, 2021 | ATHYRIUM OPPORTUNITIES FUND (A) LP | PURCHASE | 2.86 | 961.81K | 2.75M | 28.3M |
| Dec 16, 2020 | SILVESTRY DAMON | PURCHASE | 4.70 | 34.34K | 161.37K | 197.48K |
| Dec 15, 2020 | SILVESTRY DAMON | PURCHASE | 4.07 | 63.87K | 259.95K | 163.15K |
| Dec 14, 2020 | ALTER JEFFREY D. | PURCHASE | 4.85 | 20K | 97K | 38.34K |
| Dec 07, 2020 | ATHYRIUM CAPITAL MANAGEMENT, LP | PURCHASE | 0.00 | 25M | - | 25M |
| Dec 07, 2020 | ATHYRIUM OPPORTUNITIES FUND (A) LP | PURCHASE | 0.00 | 25M | - | 25M |
| Dec 02, 2020 | STYLLI HARRY | PURCHASE | 3.27 | 152.91K | 500K | 14.62M |
| Sep 03, 2020 | COOPER MATTHEW T | PURCHASE | 8.55 | 9.15K | 78.24K | 53.43K |
| Sep 02, 2020 | COOPER MATTHEW T | PURCHASE | 8.55 | 99 | 846.45 | 44.28K |
| Aug 19, 2020 | STYLLI HARRY | PURCHASE | 8.94 | 10K | 89.4K | 14.46M |
| Jun 23, 2020 | ATHYRIUM OPPORTUNITIES FUND (A) LP | PURCHASE | 15.00 | 3.33M | 50M | 23.3M |
| Jun 23, 2020 | ATHYRIUM CAPITAL MANAGEMENT, LP | PURCHASE | 15.00 | 3.33M | 50M | 23.3M |
| Jun 19, 2020 | STYLLI HARRY | PURCHASE | 15.00 | 33.33K | 500K | 1.04M |
| Jul 15, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.14 | 5K | 700 | 46.6M |
| Jul 12, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.13 | 1.93K | 251.29 | 46.59M |
| Jul 09, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.14 | 37K | 5.18K | 46.59M |
| Jun 26, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.15 | 25K | 3.75K | 46.55M |
| May 23, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.17 | 25K | 4.25K | 46.5M |
| May 15, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.18 | 100K | 18K | 46.5M |
| May 10, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.18 | 30K | 5.4K | 46.4M |
| May 07, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.17 | 30K | 5.1K | 46.37M |
| May 03, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.19 | 85K | 16.15K | 45.99M |
| Apr 10, 2013 | HERSCHKOWITZ SAMUEL | PURCHASE | 0.15 | 51.94K | 7.79K | 45.9M |
| Jun 25, 2012 | CARON PARTNERS LP | PURCHASE | 0.07 | 357.14K | 25K | 6.16M |
| Aug 16, 2006 | WILLETT WILLIAM H | SALE | 13.49 | 11.92K | 160.79K | 10K |
| Aug 15, 2006 | WILLETT WILLIAM H | SALE | 13.75 | 405 | 5.57K | 10K |
| Aug 14, 2006 | WILLETT WILLIAM H | SALE | 13.76 | 1.5K | 20.64K | 10K |
| Aug 10, 2006 | LARGIADER JEFF | SALE | 14.00 | 500 | 7K | 2.5K |
| Aug 09, 2006 | WILLETT WILLIAM H | SALE | 14.10 | 125 | 1.76K | 10K |
| Aug 08, 2006 | LARGIADER JEFF | SALE | 14.10 | 500 | 7.05K | 2.5K |
| Aug 08, 2006 | WILLETT WILLIAM H | SALE | 14.10 | 4.8K | 67.68K | 10.13K |
| Aug 07, 2006 | WILLETT WILLIAM H | SALE | 14.13 | 3.84K | 54.22K | 10K |
| Aug 04, 2006 | WILLETT WILLIAM H | SALE | 14.12 | 6.16K | 86.99K | 13.84K |
| Aug 03, 2006 | WILLETT WILLIAM H | SALE | 14.13 | 2.9K | 40.97K | 10K |
| Aug 02, 2006 | WILLETT WILLIAM H | SALE | 14.12 | 1.6K | 22.64K | 12.9K |
| May 19, 2006 | WILLETT WILLIAM H | SALE | 12.98 | 4.43K | 57.44K | 10K |
| May 18, 2006 | WILLETT WILLIAM H | SALE | 13.01 | 4.89K | 63.66K | 10.11K |
| May 10, 2006 | LARGIADER JEFF | SALE | 13.00 | 4K | 52K | 2.5K |
| May 10, 2006 | WILLETT WILLIAM H | SALE | 12.98 | 5.34K | 69.34K | 10K |
| May 09, 2006 | WILLETT WILLIAM H | SALE | 12.98 | 4.99K | 64.73K | 11.34K |
| May 08, 2006 | WILLETT WILLIAM H | SALE | 13.00 | 8.67K | 112.74K | 11.33K |
| Feb 15, 2006 | WILLETT WILLIAM H | SALE | 11.40 | 4.44K | 50.65K | 10K |
| Feb 14, 2006 | WILLETT WILLIAM H | SALE | 11.40 | 26.44K | 301.37K | 14.44K |
| Feb 13, 2006 | WILLETT WILLIAM H | SALE | 11.75 | 2.2K | 25.85K | 17.8K |
| Feb 09, 2006 | WEINGARTEN ALLAN D | SALE | 11.50 | 17K | 195.5K | 0 |
| Feb 08, 2006 | WEINGARTEN ALLAN D | SALE | 11.50 | 5K | 57.5K | 0 |
| Feb 07, 2006 | WILLETT WILLIAM H | SALE | 11.31 | 298 | 3.37K | 10K |
| Feb 07, 2006 | WEINGARTEN ALLAN D | SALE | 11.50 | 1K | 11.5K | 0 |
| Feb 06, 2006 | WILLETT WILLIAM H | SALE | 11.17 | 48.5K | 541.57K | 10.3K |
| Feb 02, 2006 | WILLETT WILLIAM H | SALE | 11.36 | 5.3K | 60.22K | 19.7K |
| Feb 01, 2006 | WEINGARTEN ALLAN D | SALE | 11.66 | 10.75K | 125.35K | 0 |
| Jan 31, 2006 | WILLETT WILLIAM H | SALE | 11.79 | 16.61K | 195.83K | 25K |
| Jan 30, 2006 | LARGIADER JEFF | SALE | 11.88 | 7.5K | 89.1K | 2.5K |
| Aug 03, 2005 | LARGIADER JEFF | SALE | 11.20 | 2K | 22.4K | 7K |
| Aug 02, 2005 | LARGIADER JEFF | SALE | 11.20 | 2K | 22.4K | 9K |
| Mar 03, 2005 | ROI PARTNERS L P | SALE | 15.04 | 500 | 7.52K | 302.57K |
| Mar 02, 2005 | ROI PARTNERS L P | SALE | 15.17 | 50.9K | 772.08K | 343.07K |
| Feb 23, 2005 | WILLETT WILLIAM H | SALE | 14.00 | 5.5K | 77K | 10K |
| Feb 22, 2005 | WILLETT WILLIAM H | SALE | 14.00 | 1.5K | 21K | 15.5K |
| Feb 15, 2005 | WILLETT WILLIAM H | SALE | 13.90 | 5K | 69.5K | 10K |
| Feb 11, 2005 | WILLETT WILLIAM H | SALE | 13.70 | 5K | 68.5K | 10K |
| Feb 10, 2005 | WILLETT WILLIAM H | SALE | 13.56 | 10K | 135.6K | 15K |
| Feb 10, 2005 | LARGIADER JEFF | SALE | 13.56 | 900 | 12.2K | 15.5K |
| Feb 09, 2005 | LARGIADER JEFF | SALE | 13.50 | 1.6K | 21.6K | 16.4K |
| Feb 08, 2005 | WILLETT WILLIAM H | SALE | 13.65 | 3K | 40.95K | 10K |
| Feb 07, 2005 | MORGENS EDWIN H | SALE | 13.40 | 4.37K | 58.52K | 136.86K |
| Feb 04, 2005 | MORGENS EDWIN H | SALE | 13.50 | 4.07K | 54.97K | 141.23K |
| Feb 03, 2005 | MORGENS EDWIN H | SALE | 13.46 | 8K | 107.68K | 145.3K |
| Nov 10, 2004 | WILLETT WILLIAM H | SALE | 10.14 | 18.65K | 189.24K | 0 |
| Nov 09, 2004 | LARGIADER JEFF | SALE | 10.75 | 4K | 43K | 18K |
| Sep 28, 2004 | ROI PARTNERS L P | SALE | 10.01 | 15.93K | 159.55K | 418.97K |
| Sep 24, 2004 | ROI PARTNERS L P | SALE | 9.81 | 5K | 49.05K | 434.9K |
| Sep 23, 2004 | ROI PARTNERS L P | SALE | 9.66 | 2K | 19.33K | 439.9K |
| Aug 24, 2004 | LARGIADER JEFF | SALE | 8.40 | 2K | 16.8K | 73K |
| Jun 07, 2004 | ROI PARTNERS L P | SALE | 8.05 | 22K | 177.16K | 441.9K |
| Feb 11, 2004 | LARGIADER JEFF | SALE | 7.70 | 2.5K | 19.25K | 75K |
| Feb 03, 2004 | SIGHT JAMES W | SALE | 8.03 | 11.16K | 89.57K | 0 |
| Nov 06, 2003 | LARGIADER JEFF | SALE | 6.94 | 2.5K | 17.35K | 77.5K |
| Sep 08, 2003 | SIGHT JAMES W | SALE | 3.85 | 20K | 77K | 8.44K |
| Aug 26, 2003 | LARGIADER JEFF | PURCHASE | 0.67 | 7.5K | 5.03K | 80K |