ONCOLOGY INSTITUTE INC/THE (TOI) Institutional Shareholders
ONCOLOGY INSTITUTE INC/THE (TOI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $217.88M in TOI holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of TOI tracked by InsiderSet, reporting ownership valued at approximately $25.79M in its June 30, 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 $24.36M, representing an estimated loss of -5.52% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 59% of the total disclosed TOI value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Deerfield Management Company, L.P., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ONCOLOGY INSTITUTE INC/THE (TOI).
This page ranks the largest institutional TOI 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
116
Total Reported Value
$217.88M
Largest Holder
Blackrock, Inc.
Largest Position
$25.79M
Insider Transactions (90d)
14
Latest Filing Quarter
Q2 2026
New Institutional Positions
145
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% | 4,749,030 | $25,787,233 | $24,362,524 | -$1,424,709 | -5.52% | |
| Deerfield Management Company, L.P. | 0.19% | 3,360,052 | $18,245,082 | $17,237,067 | -$1,008,015 | -5.52% | |
| Vanguard Capital Management Llc | 0.00% | 3,265,531 | $17,731,833 | $16,752,174 | -$979,659 | -5.52% | |
| Josh Arnold Investment Consultant, Llc | 8.42% | 2,464,359 | $13,381,469 | $12,642,162 | -$739,307 | -5.52% | |
| Geode Capital Management, Llc | 0.00% | 1,899,998 | $10,319,334 | $9,746,990 | -$572,344 | -5.55% | |
| Goldman Sachs Group Inc | 0.00% | 1,735,337 | $9,422,880 | $8,902,279 | -$520,601 | -5.52% | |
| Wexford Capital Lp | 1.27% | 1,711,323 | $9,292,484 | $8,779,087 | -$513,397 | -5.52% | |
| State Street Corp | 0.00% | 1,552,917 | $8,432,339 | $7,966,464 | -$465,875 | -5.52% | |
| Nuveen, Llc | 0.00% | 1,408,720 | $7,649,350 | $7,226,734 | -$422,616 | -5.52% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 1,365,913 | $7,416,908 | $7,007,134 | -$409,774 | -5.52% |
| Centerbook Partners Lp | 0.33% | 1,241,660 | $6,742,214 | $6,369,716 | -$372,498 | -5.52% | |
| Marshall Wace, Llp | 0.01% | 1,222,498 | $6,638,164 | $6,271,415 | -$366,749 | -5.52% | |
| Vanguard Portfolio Management Llc | 0.00% | 1,007,037 | $5,468,211 | $5,166,100 | -$302,111 | -5.52% | |
| Citadel Advisors Llc | 0.00% | 894,101 | $4,854,968 | $4,586,738 | -$268,230 | -5.52% | |
| Jane Street Group, Llc | 0.00% | 852,163 | $4,627,245 | $4,371,596 | -$255,649 | -5.52% | |
| Brc Group Holdings, Inc. | 0.93% | 742,593 | $4,032,280 | $3,809,502 | -$222,778 | -5.52% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 710,888 | $3,860,122 | $3,646,855 | -$213,267 | -5.52% | |
| Two Sigma Investments, Lp | 0.00% | 668,839 | $3,631,796 | $3,431,144 | -$200,652 | -5.52% | |
| Northern Trust Corp | 0.00% | 591,534 | $3,212,030 | $3,034,569 | -$177,461 | -5.52% | |
| Acadian Asset Management Llc | 0.00% | 567,001 | $3,072,000 | $2,908,715 | -$163,285 | -5.32% | |
| Vanguard Fiduciary Trust Co | 0.00% | 502,049 | $2,726,126 | $2,575,511 | -$150,615 | -5.52% | |
| Fourworld Capital Management Llc | 3.13% | 499,196 | $2,710,634 | $2,560,875 | -$149,759 | -5.52% | |
| Manatuck Hill Partners, Llc | 0.81% | 450,000 | $2,443,500 | $2,308,500 | -$135,000 | -5.52% | |
| Walleye Capital Llc | 0.01% | 445,832 | $2,420,868 | $2,287,118 | -$133,750 | -5.52% | |
| Inspire Investing, Llc | 0.09% | 424,008 | $2,302,363 | $2,175,161 | -$127,202 | -5.52% | |
| Jpmorgan Chase & Co | 0.00% | 409,348 | $2,292,349 | $2,099,955 | -$192,394 | -8.39% | |
| Bank Of America Corp | 0.00% | 391,997 | $2,128,543 | $2,010,945 | -$117,598 | -5.52% | |
| Ensign Peak Advisors, Inc | 0.00% | 626,852 | $1,924,436 | $3,215,751 | +$1,291,315 | +67.10% | |
| Invesco Ltd. | 0.00% | 342,166 | $1,857,962 | $1,755,312 | -$102,650 | -5.52% | |
| Formula Growth Ltd | 0.57% | 300,000 | $1,629,000 | $1,539,000 | -$90,000 | -5.52% | |
| Sg Americas Securities, Llc | 0.00% | 263,147 | $1,429,000 | $1,349,944 | -$79,056 | -5.53% | |
| Mount Lucas Management Lp | 0.48% | 250,000 | $1,357,500 | $1,282,500 | -$75,000 | -5.52% | |
| Boothbay Fund Management, Llc | 0.02% | 233,379 | $1,267,248 | $1,197,234 | -$70,014 | -5.52% | |
| Charles Schwab Investment Management Inc | 0.00% | 226,007 | $1,227,218 | $1,159,416 | -$67,802 | -5.52% | |
| Informed Momentum Co Llc | 0.09% | 188,467 | $1,023,376 | $966,836 | -$56,540 | -5.52% | |
| Bank Of New York Mellon Corp | 0.00% | 176,949 | $960,832 | $907,748 | -$53,084 | -5.52% | |
| Dauntless Investment Group, Llc | 1.54% | 163,570 | $888,185 | $839,114 | -$49,071 | -5.52% | |
| Ubs Group Ag | 0.00% | 153,273 | $832,272 | $786,290 | -$45,982 | -5.52% | |
| Morgan Stanley | 0.00% | 135,085 | $733,511 | $692,986 | -$40,525 | -5.52% | |
| Kingswood Wealth Advisors, Llc | 0.03% | 121,900 | $661,917 | $625,347 | -$36,570 | -5.52% | |
| Panoramic Capital, Llc | 0.23% | 100,000 | $543,000 | $513,000 | -$30,000 | -5.52% | |
| Gsa Capital Partners Llp | 0.03% | 98,727 | $536,000 | $506,470 | -$29,530 | -5.51% | |
| Millennium Management Llc | 0.00% | 96,875 | $526,031 | $496,969 | -$29,062 | -5.52% | |
| Cetera Investment Advisers | 0.00% | 89,415 | $485,523 | $458,699 | -$26,824 | -5.52% | |
| T3 Companies, Llc | 0.50% | 80,000 | $434,400 | $410,400 | -$24,000 | -5.52% | |
| Wells Fargo & Company/Mn | 0.00% | 78,510 | $426,309 | $402,756 | -$23,553 | -5.52% | |
| Fmr Llc | 0.00% | 78,107 | $424,121 | $400,689 | -$23,432 | -5.52% | |
| Deutsche Bank Ag\ | 0.00% | 75,937 | $412,337 | $389,557 | -$22,780 | -5.52% | |
| State Of Wyoming | 0.04% | 72,882 | $395,749 | $373,885 | -$21,864 | -5.52% | |
| Squarepoint Ops Llc | 0.00% | 72,862 | $395,641 | $373,782 | -$21,859 | -5.52% |
Frequently asked questions about TOI
Who owns the most TOI stock?
The largest holders of TOI 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 ONCOLOGY INSTITUTE INC/THE (TOI).
Is TOI widely held by superinvestors?
Many widely followed stocks like TOI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly TOI 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.