ORASURE TECHNOLOGIES INC (OSUR) Top Institutional Shareholders
ORASURE TECHNOLOGIES INC (OSUR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $150.48M in OSUR holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of OSUR tracked by InsiderSet, reporting ownership valued at approximately $19.55M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $29.13M, representing an estimated gain of +49.00% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 64% of the total disclosed OSUR value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Private Management Group Inc, Neuberger Berman Group Llc, and several other long-term asset managers with concentrated positions in ORASURE TECHNOLOGIES INC (OSUR).
This page ranks the largest institutional OSUR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
139
Total Reported Value
$150.48M
Largest Holder
Blackrock, Inc.
Largest Position
$19.55M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
159
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 6,516,216 | $19,548,648 | $29,127,486 | +$9,578,838 | +49.00% | |
| Private Management Group Inc | 0.47% | 5,422,129 | $16,266,387 | $24,236,917 | +$7,970,530 | +49.00% | |
| Neuberger Berman Group Llc | 0.01% | 4,361,901 | $13,068,336 | $19,497,697 | +$6,429,361 | +49.20% | |
| Vanguard Capital Management Llc | 0.00% | 3,030,888 | $9,092,664 | $13,548,069 | +$4,455,405 | +49.00% | |
| Dimensional Fund Advisors Lp | 0.00% | 2,820,830 | $8,462,296 | $12,609,110 | +$4,146,814 | +49.00% | |
| Systematic Financial Management Lp | 0.17% | 2,480,483 | $7,441,450 | $11,087,759 | +$3,646,309 | +49.00% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 2,083,303 | $6,249,909 | $9,312,364 | +$3,062,455 | +49.00% |
| Cannell Capital Llc | 3.90% | 2,003,271 | $6,009,813 | $8,954,621 | +$2,944,808 | +49.00% | |
| Geode Capital Management, Llc | 0.00% | 1,820,019 | $5,461,366 | $8,135,485 | +$2,674,119 | +48.96% | |
| Gagnon Securities Llc | 1.19% | 1,714,391 | $5,143,173 | $7,663,328 | +$2,520,155 | +49.00% | |
| State Street Corp | 0.00% | 1,704,780 | $5,114,340 | $7,620,367 | +$2,506,027 | +49.00% | |
| D. E. Shaw & Co., Inc. | 0.00% | 1,382,388 | $4,147,164 | $6,179,274 | +$2,032,110 | +49.00% | |
| Gagnon Advisors, Llc | 2.66% | 1,207,440 | $3,622,320 | $5,397,257 | +$1,774,937 | +49.00% | |
| Peapod Lane Capital Llc | 2.49% | 1,018,476 | $3,037,311 | $4,552,588 | +$1,515,277 | +49.89% | |
| Jacobs Levy Equity Management, Inc | 0.01% | 999,593 | $2,998,779 | $4,468,181 | +$1,469,402 | +49.00% | |
| Wells Fargo & Company/Mn | 0.00% | 899,841 | $2,699,523 | $4,022,289 | +$1,322,766 | +49.00% | |
| Archon Capital Management Llc | 1.27% | 747,909 | $2,243,727 | $3,343,153 | +$1,099,426 | +49.00% | |
| Yorkville Advisors Global, Lp | 1.30% | 635,000 | $1,905,000 | $2,838,450 | +$933,450 | +49.00% | |
| Northern Trust Corp | 0.00% | 595,172 | $1,785,516 | $2,660,419 | +$874,903 | +49.00% | |
| Vanguard Portfolio Management Llc | 0.00% | 590,198 | $1,770,594 | $2,638,185 | +$867,591 | +49.00% | |
| Charles Schwab Investment Management Inc | 0.00% | 585,837 | $1,757,511 | $2,618,691 | +$861,180 | +49.00% | |
| Vanguard Fiduciary Trust Co | 0.00% | 454,775 | $1,364,325 | $2,032,844 | +$668,519 | +49.00% | |
| Sei Investments Co | 0.00% | 417,958 | $1,253,962 | $1,868,272 | +$614,310 | +48.99% | |
| Goldman Sachs Group Inc | 0.00% | 411,526 | $1,234,578 | $1,839,521 | +$604,943 | +49.00% | |
| Morgan Stanley | 0.00% | 373,947 | $1,121,841 | $1,671,543 | +$549,702 | +49.00% | |
| Klp Kapitalforvaltning As | 0.00% | 363,300 | $1,089,900 | $1,623,951 | +$534,051 | +49.00% | |
| Intrinsic Edge Capital Management Llc | 0.19% | 349,064 | $1,047,192 | $1,560,316 | +$513,124 | +49.00% | |
| Aqr Capital Management Llc | 0.00% | 330,901 | $992,703 | $1,479,127 | +$486,424 | +49.00% | |
| Orion Porfolio Solutions, Llc | 0.01% | 324,517 | $973,551 | $1,450,591 | +$477,040 | +49.00% | |
| Bridgeway Capital Management, Llc | 0.02% | 284,563 | $853,689 | $1,271,997 | +$418,308 | +49.00% | |
| Ubs Group Ag | 0.00% | 243,294 | $729,882 | $1,087,524 | +$357,642 | +49.00% | |
| Ameriprise Financial Inc | 0.00% | 218,233 | $654,699 | $975,502 | +$320,803 | +49.00% | |
| Bank Of New York Mellon Corp | 0.00% | 200,377 | $601,131 | $895,685 | +$294,554 | +49.00% | |
| American Century Companies Inc | 0.00% | 199,924 | $599,772 | $893,660 | +$293,888 | +49.00% | |
| Invesco Ltd. | 0.00% | 165,003 | $495,009 | $737,563 | +$242,554 | +49.00% | |
| Nuveen, Llc | 0.00% | 159,359 | $478,077 | $712,335 | +$234,258 | +49.00% | |
| Susquehanna International Group, Llp | 0.00% | 153,610 | $460,830 | $686,637 | +$225,807 | +49.00% | |
| Hsbc Holdings Plc | 0.00% | 141,309 | $421,101 | $631,651 | +$210,550 | +50.00% | |
| Strs Ohio | 0.00% | 137,000 | $411,000 | $612,390 | +$201,390 | +49.00% | |
| Bank Of America Corp | 0.00% | 134,406 | $403,218 | $600,795 | +$197,577 | +49.00% | |
| Odyssean, Llc | 0.15% | 133,937 | $401,811 | $598,698 | +$196,887 | +49.00% | |
| Jane Street Group, Llc | 0.00% | 125,516 | $376,548 | $561,057 | +$184,509 | +49.00% | |
| Simplex Trading, Llc | 0.01% | 118,051 | $354,153 | $527,688 | +$173,535 | +49.00% | |
| Murphy Pohlad Asset Management Llc | 0.12% | 115,867 | $347,601 | $517,925 | +$170,324 | +49.00% | |
| Xtx Topco Ltd | 0.01% | 115,714 | $347,142 | $517,242 | +$170,100 | +49.00% | |
| Barclays Plc | 0.00% | 115,172 | $345,516 | $514,819 | +$169,303 | +49.00% | |
| Deutsche Bank Ag\ | 0.00% | 114,592 | $343,776 | $512,226 | +$168,450 | +49.00% | |
| Tudor Investment Corp Et Al | 0.00% | 112,756 | $338,268 | $504,019 | +$165,751 | +49.00% | |
| Alliancebernstein L.P. | 0.00% | 124,816 | $302,055 | $557,928 | +$255,873 | +84.71% | |
| Fuller & Thaler Asset Management, Inc. | 0.00% | 99,244 | $297,732 | $443,621 | +$145,889 | +49.00% |
Frequently asked questions about OSUR
Who owns the most OSUR stock?
The largest holders of OSUR are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ORASURE TECHNOLOGIES INC (OSUR).
Is OSUR widely held by superinvestors?
Many widely followed stocks like OSUR appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly OSUR is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.