Oncology Institute Ownership | Who Owns Oncology Institute?


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Oncology Institute Ownership Summary


Oncology Institute is owned by 2.27% institutional investors, 8.88% insiders, and 88.85% retail investors. Kent lake capital is the largest institutional shareholder, holding 2.36% of TOI shares. Fidelity Growth Compy Commingled Pl S is the top mutual fund, with 2.72% of its assets in Oncology Institute shares.

TOI Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockOncology Institute2.27%8.88%88.85%
SectorHealthcare Stocks 232.01%10.74%-142.75%
IndustryMedical Care Facilities Stocks33.52%12.46%54.02%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Kent lake capital1.75M2.36%$805.00K
Triatomic management lp802.97K1.08%$369.36K
Vanguard group4.75M0.49%$16.91M
Blackrock funding, inc. /de3.91M0.40%$13.90M
Citadel advisors269.70K0.36%$124.06K
Deerfield management company, l.p. (series c)3.36M0.36%$11.73M
Centerbook partners lp3.03M0.31%$10.78M
Blackrock204.81K0.28%$94.22K
Balyasny asset management2.52M0.27%$5.16M
Kanen wealth management1.84M0.20%$6.42M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Triatomic management lp802.97K10.89%$369.36K
Kanen wealth management1.84M2.15%$6.42M
Fourworld capital management358.00K1.97%$1.25M
B. riley financial663.38K1.01%$2.36M
Wexford capital lp1.57M0.79%$5.48M
Manatuck hill partners629.80K0.73%$2.20M
Josh arnold investment consultant204.25K0.57%$712.83K
Centerbook partners lp3.03M0.53%$10.78M
Freegulliver355.67K0.47%$1.27M
Kent lake capital1.75M0.36%$805.00K

Top Buyers

HolderShares% AssetsChange
Kanen wealth management1.84M2.15%1.84M
Jane street group803.32K0.00%678.43K
Kent lake capital1.75M0.36%563.29K
State street1.13M0.00%483.77K
Blackrock funding, inc. /de3.91M0.00%470.46K

Top Sellers

HolderShares% AssetsChange
Josh arnold investment consultant204.25K0.57%-2.24M
Marshall wace, llp25.16K0.00%-1.45M
Cincinnati insurance---1.24M
Ubs group287.69K0.00%-768.18K
Tiff advisory services195.57K0.12%-661.06K

New Positions

HolderShares% AssetsChangeValue
Kanen wealth management1.84M2.15%1.84M$6.42M
Boothbay fund management247.88K0.01%247.88K$865.12K
Squarepoint ops142.55K0.00%142.55K$497.51K
Exoduspoint capital management, lp115.24K0.00%115.24K$402.20K
Sei investments111.55K0.00%111.55K$397.13K

Sold Out

HolderChange
Srs capital advisors-14.00
C m bidwell & associates-265.00
Capital advisors-1.22K
Boston financial mangement-2.68K
Kirr marbach & co llc /in/-2.73K

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202574-35.09%22,126,511-36.18%216.40%47-33.80%13-43.48%
Sep 30, 202510643.24%33,706,6598.37%332.47%633.28%23475.00%
Jun 30, 20257885.71%29,319,38273.47%365.45%64178.26%5-28.57%
Mar 31, 20254240.00%16,901,93214.88%20.58%2376.92%7133.33%
Dec 31, 202418-47.06%8,865,387-56.94%111.58%8-46.67%3-57.14%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Fidelity Growth Compy Commingled Pl S2.05M2.72%2.05M
Vanguard Total Stock Mkt Idx Inv2.62M2.66%-
Fidelity Growth Company Fund1.80M2.38%1.80M
iShares Russell 2000 ETF1.67M1.70%1.34M
Philotimo Focused Growth and Income1.06M1.08%227.78K
Vanguard Institutional Extnd Mkt Idx Tr737.36K0.75%-
Fidelity Small Cap Index599.82K0.61%-713.00
iShares Russell 2000 Growth ETF568.89K0.58%568.89K
Fidelity Growth Company K6431.19K0.57%431.19K
Fidelity Series Growth Company377.38K0.50%377.38K

Recent Insider Transactions


DateNameRoleActivityValue
Jan 02, 2026Carter Robert Ross Chief Financial OfficerSell$879.32
Dec 15, 2025Hively Brad-Sell$50.29K
Nov 18, 2025Pacala Mark L-Sell$8.64K
Nov 18, 2025Pacala Mark L-Sell$186.52K
Nov 18, 2025Pacala Mark L-Sell$4.84K

Insider Transactions Trends


DateBuySell
2025 Q4-4
2025 Q3-3
2025 Q2-6
2025 Q118-
2024 Q42-

TOI Ownership FAQ


Who Owns Oncology Institute?

Oncology Institute shareholders are primarily institutional investors at 2.27%, followed by 8.88% insiders and 88.85% retail investors. The average institutional ownership in Oncology Institute's industry, Medical Care Facilities Stocks, is 33.52%, which Oncology Institute falls below.

Who owns the most shares of Oncology Institute?

Oncology Institute’s largest shareholders are Kent lake capital (1.75M shares, 2.36%), Triatomic management lp (802.96K shares, 1.08%), and Vanguard group (4.75M shares, 0.49%). Together, they hold 3.93% of Oncology Institute’s total shares outstanding.

Does Blackrock own Oncology Institute?

Yes, BlackRock owns 0.28% of Oncology Institute, totaling 204.81K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 94.22K$. In the last quarter, BlackRock increased its holdings by 55.38K shares, a 37.06% change.

Who is Oncology Institute’s biggest shareholder by percentage of total assets invested?

Triatomic management lp is Oncology Institute’s biggest shareholder by percentage of total assets invested, with 10.89% of its assets in 802.96K Oncology Institute shares, valued at 369.36K$.

Who is the top mutual fund holder of Oncology Institute shares?

Fidelity Growth Compy Commingled Pl S is the top mutual fund holder of Oncology Institute shares, with 2.72% of its total shares outstanding invested in 2.05M Oncology Institute shares.

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