Oncology Institute Ownership | Who Owns Oncology Institute?

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Oncology Institute Ownership Summary

Oncology Institute is owned by 1.63% institutional investors, 18.11% insiders, and 80.26% 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

Type	Name	% Inst	% Insiders	% Retail
Stock	Oncology Institute	1.63%	18.11%	80.26%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Medical Care Facilities Stocks	38.65%	13.46%	47.90%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Kent lake capital	1.75M	2.36%	$805.00K
Triatomic management lp	802.97K	1.08%	$369.36K
Vanguard group	4.75M	0.49%	$16.91M
Blackrock funding, inc. /de	4.42M	0.48%	$13.56M
Deerfield management company, l.p. (series c)	3.36M	0.36%	$10.32M
Blackrock	204.81K	0.28%	$94.22K
Josh arnold investment consultant	2.46M	0.27%	$7.57M
Balyasny asset management	1.83M	0.20%	$5.61M
Kanen wealth management	1.84M	0.20%	$6.42M
Geode capital management	1.76M	0.19%	$5.40M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Triatomic management lp	802.97K	10.89%	$369.36K
Josh arnold investment consultant	2.46M	6.47%	$7.57M
Kanen wealth management	1.84M	2.15%	$6.42M
Dauntless investment group	462.06K	0.94%	$1.42M
Fourworld capital management	499.20K	0.78%	$1.53M
Wexford capital lp	1.71M	0.76%	$5.25M
Manatuck hill partners	629.80K	0.73%	$2.20M
B. riley financial	929.73K	0.63%	$2.85M
Kent lake capital	1.75M	0.36%	$805.00K
Mount lucas management lp	250.00K	0.28%	$767.50K

Top Buyers

Holder	Shares	% Assets	Change
Kanen wealth management	1.84M	2.15%	1.84M
Goldman sachs group	1.35M	0.00%	781.48K
Ensign peak advisors	626.85K	0.00%	626.85K
Citadel advisors	608.27K	0.00%	608.27K
Kent lake capital	1.75M	0.36%	563.29K

Top Sellers

Holder	Shares	% Assets	Change
Centerbook partners lp	1.57M	0.26%	-1.46M
Cincinnati insurance	-	-	-1.24M
Balyasny asset management	1.83M	0.01%	-692.07K
Massar capital management, lp	-	-	-400.00K
Jane street group	424.89K	0.00%	-378.42K

New Positions

Holder	Shares	% Assets	Change	Value
Kanen wealth management	1.84M	2.15%	1.84M	$6.42M
Ensign peak advisors	626.85K	0.00%	626.85K	$1.92M
Vanguard fiduciary trust	483.06K	0.00%	483.06K	$1.48M
Dauntless investment group	462.06K	0.94%	462.06K	$1.42M
Centiva capital, lp	224.25K	0.01%	224.25K	$688.43K

Sold Out

Holder	Change
Rothschild investment	-1.00
Northwestern mutual wealth management	-8.00
Parallel advisors	-39.00
Signaturefd	-186.00
C m bidwell & associates	-265.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	61	-50.00%	15,059,909	-60.87%	1	10.46%	36	-52.00%	15	-42.31%
Dec 31, 2025	74	-35.09%	22,126,511	-36.18%	2	16.40%	47	-33.80%	13	-43.48%
Sep 30, 2025	106	43.24%	33,706,659	8.37%	3	32.47%	63	3.28%	23	475.00%
Jun 30, 2025	78	85.71%	29,319,382	73.47%	3	65.45%	64	178.26%	5	-28.57%
Mar 31, 2025	42	40.00%	16,901,932	14.88%	2	0.58%	23	76.92%	7	133.33%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Fidelity Growth Compy Commingled Pl S	2.05M	2.72%	2.05M
Vanguard Total Stock Mkt Idx Inv	2.62M	2.62%	-
Fidelity Growth Company Fund	1.80M	2.38%	1.80M
iShares Russell 2000 ETF	1.84M	1.84%	15.51K
Philotimo Focused Growth and Income	878.23K	0.89%	-181.65K
Vanguard Institutional Extnd Mkt Idx Tr	768.49K	0.77%	-
Fidelity Small Cap Index	665.28K	0.67%	3.48K
iShares Russell 2000 Growth ETF	644.86K	0.65%	1.66K
Fidelity Growth Company K6	431.19K	0.57%	431.19K
State St Russell Sm/Mid Cp® Indx SL Cl I	514.81K	0.51%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 08, 2026	Podnos Yale	Chief Medical Officer	Sell	$126.09K
Jun 04, 2026	Chernett Jorey	-	Buy	$57.00K
May 20, 2026	Chernett Jorey	-	Buy	$136.34K
May 19, 2026	Chernett Jorey	-	Buy	$20.25K
May 19, 2026	Chernett Jorey	-	Buy	$122.70K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	5	3
2026 Q1	7	1
2025 Q4	-	4
2025 Q3	-	3
2025 Q2	-	6

TOI Ownership FAQ

Who Owns Oncology Institute?

Oncology Institute shareholders are primarily institutional investors at 1.63%, followed by 18.11% insiders and 80.26% retail investors. The average institutional ownership in Oncology Institute's industry, Medical Care Facilities Stocks, is 38.65%, 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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