Vault-13

THE ONCOLOGY INSTITUTE INC STLN

COM · Common Stock · CUSIP 68236X100

117 institutional holders +9 vs Q3 2025
38,483,21638.5m shares reported held*
39.1% of all shares outstanding*
$137.1mreported value*
27 new 47 added 26 reduced 18 sold out net bought ≈ $13.4m (+3.8m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 98.4m as of 2025-11-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $3.56. Options: 6 managers hold calls ($15.8m notional), 5 hold puts ($236.4k).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 39Q4 22: 41Q1 23: 40Q2 23: 39Q3 23: 37Q4 23: 46Q1 24: 48Q2 24: 40Q3 24: 35Q4 24: 32Q1 25: 44Q2 25: 80Q3 25: 108Q4 25: 117117Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 202239
Q4 202241
Q1 202340
Q2 202339
Q3 202337
Q4 202346
Q1 202448
Q2 202440
Q3 202435
Q4 202432
Q1 202544
Q2 202580
Q3 2025108
Q4 2025117

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q1 24: 21 bought or addedQ1 24: 17 cut or sold outQ2 24: 13 bought or addedQ2 24: 25 cut or sold outQ2 24Q3 24: 13 bought or addedQ3 24: 13 cut or sold outQ4 24: 14 bought or addedQ4 24: 11 cut or sold outQ4 24Q1 25: 23 bought or addedQ1 25: 10 cut or sold outQ2 25: 66 bought or addedQ2 25: 10 cut or sold outQ2 25Q3 25: 69 bought or addedQ3 25: 29 cut or sold outQ4 25: 74 bought or addedQ4 25: 44 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 20242117
Q2 20241325
Q3 20241313
Q4 20241411
Q1 20252310
Q2 20256610
Q3 20256929
Q4 20257444

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$5m$10m$15m$20mQ1 25 calls: $0Q1 25 puts: $0Q1 25P/C —Q2 25 calls: $0Q2 25 puts: $0Q2 25P/C —Q3 25 calls: $3.5mQ3 25 puts: $108.2kQ3 25P/C 0.03Q4 25 calls: $15.8mQ4 25 puts: $236.4kQ4 25P/C 0.01
Numbers
QuarterCallsPutsP/C
Q1 2025$0$0—
Q2 2025$0$0—
Q3 2025$3.5m$108.2k0.03
Q4 2025$15.8m$236.4k0.01

Biggest buyers

JOSH ARNOLD INVESTMENT CONSULTANT, LLC Added +2,255,559+2.3m
Kanen Wealth Management LLC Added +1,134,043+1.1m
JANE STREET GROUP, LLC Added +678,427+678.4k
BlackRock, Inc. Added +470,458+470.5k
GatePass Capital, LLC New +360,000+360.0k
JPMORGAN CHASE & CO Added +337,920+337.9k
CenterBook Partners LP Added +324,662+324.7k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +295,150+295.1k
STATE STREET CORP Added +221,599+221.6k
VANGUARD GROUP INC Added +203,390+203.4k

Biggest sellers

UBS Group AG Reduced -768,176-768.2k
MILLENNIUM MANAGEMENT LLC Reduced -757,860-757.9k
TIFF ADVISORY SERVICES, LLC Reduced -661,059-661.1k
Manatuck Hill Partners, LLC Sold out -629,800-629.8k
EHP Funds Inc. Sold out -244,041-244.0k
NKCFO LLC Sold out -190,000-190.0k
BOOTHBAY FUND MANAGEMENT, LLC Reduced -162,654-162.7k
BRC Group Holdings, Inc. Reduced -148,170-148.2k
PANAGORA ASSET MANAGEMENT INC Sold out -126,985-127.0k
GOLDMAN SACHS GROUP INC Reduced -111,219-111.2k

Biggest calls

Balyasny Asset Management L.P. New $8.1m2.3m shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $2.3m642.1k shares
CITADEL ADVISORS LLC Added $1.6m450.3k shares
SIMPLEX TRADING, LLC Reduced $1.4m401.2k shares
GROUP ONE TRADING LLC Added $1.2m345.9k shares
JANE STREET GROUP, LLC Added $1.2m326.0k shares

Biggest puts

CITADEL ADVISORS LLC Added $95.4k26.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $90.1k25.3k shares
JANE STREET GROUP, LLC New $46.6k13.1k shares
GROUP ONE TRADING LLC Reduced $2.5k700 shares
SIMPLEX TRADING, LLC Added $1.8k500 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
10010Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24Q3 24: 0 buyingQ3 24: 0 sellingQ4 24: 1 buyingQ4 24: 0 sellingQ4 24Q1 25: 8 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 2 sellingQ2 25Q3 25: 0 buyingQ3 25: 2 sellingQ4 25: 0 buyingQ4 25: 2 sellingQ4 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20240—0——
Q2 20240—0——
Q3 20240—0——
Q4 20241$50.0k0——
Q1 20258$1.6m0——
Q2 20250—2$13.4m—
Q3 20250—2$20.8m—
Q4 20250—2$250.3k—
DateInsiderTradeSharesPrice ValueTheir holding
2025-12-15 Hively Brad Director Sold 13,333 $3.77 $50.3k13.3k shares -2%
2025-11-18 Pacala Mark L Director Sold 50,000 $4.00 $200.0k50.0k shares -22%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 4,748,6354.7m $16.9m $16.9m 0.00% Added +203.4k +203,390
2 BlackRock, Inc. 0.00% of their portfolio New York, NY 3,905,3333.9m $13.9m $13.9m 0.00% Added +470.5k +470,458
3 DEERFIELD MANAGEMENT COMPANY, L.P. 0.15% of their portfolio New York, NY 3,360,0523.4m $12.0m $12.0m 0.15% Unchanged
4 CenterBook Partners LP 0.53% of their portfolio GREENWICH, CT 3,029,3123.0m $10.8m $10.8m 0.53% Added +324.7k +324,662
5 Kanen Wealth Management LLC 3.25% of their portfolio COCONUT CREEK, FL 2,976,1443.0m $10.7m $10.7m 3.25% Added +1.1m +1,134,043
6 Balyasny Asset Management L.P. 0.02% of their portfolio Chicago, IL 2,518,4372.5m $9.0m $9.0m 0.02% Added +100 +100
7 JOSH ARNOLD INVESTMENT CONSULTANT, LLC 6.53% of their portfolio EDINA, MN 2,459,8092.5m $8.8m $8.8m 6.53% Added +2.3m +2,255,559
8 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,570,4541.6m $5.6m $5.6m 0.00% Added +168.5k +168,548
9 WEXFORD CAPITAL LP 1.40% of their portfolio WEST PALM BEACH, FL 1,533,4561.5m $5.5m $5.5m 1.40% Reduced -37.6k -37,613
10 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,351,6241.4m $4.8m $4.8m 0.00% Added +221.6k +221,599
11 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 803,315803.3k $2.9m $2.9m 0.00% Added +678.4k +678,427
12 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 721,900721.9k $2.6m $2.6m 0.00% Reduced -28.6k -28,600
13 BRC Group Holdings, Inc. 1.01% of their portfolio LOS ANGELES, CA 663,376663.4k $2.4m $2.4m 1.01% Reduced -148.2k -148,170
14 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 570,424570.4k $2.0m $2.0m 0.00% Reduced -111.2k -111,219
15 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 499,244499.2k $1.8m $1.8m 0.00% Added +34.6k +34,552
16 Massar Capital Management, LP 0.28% of their portfolio STAMFORD, CT 400,000400.0k $1.4m $1.4m 0.28% Unchanged
17 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 386,778386.8k $1.4m $1.4m 0.00% Added +337.9k +337,920
18 FourWorld Capital Management LLC 1.27% of their portfolio NEW YORK, NY 382,700382.7k $1.4m $1.4m 1.27% Added +24.7k +24,700
19 GatePass Capital, LLC 0.66% of their portfolio INDEPENDENCE, OH 360,000360.0k $1.3m $1.3m 0.66% New
20 FreeGulliver LLC 0.57% of their portfolio NEW ORLEANS, LA 355,672355.7k $1.3m $1.3m 0.57% Added +145.7k +145,672
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 295,150295.1k $1.1m $1.1m 0.00% New
22 UBS Group AG 0.00% of their portfolio ZURICH, V8 287,686287.7k $1.0m $1.0m 0.00% Reduced -768.2k -768,176
23 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 270,885270.9k $964.4k $964.4k 0.00% Added +3.9k +3,900
24 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 262,050262.1k $932.9k $932.9k 0.00% Reduced -16.9k -16,917
25 Maven Securities LTD 0.11% of their portfolio ST HELIER, Y9 251,128251.1k $894.0k $894.0k 0.11% Added +151.1k +151,128
26 Mount Lucas Management LP 0.39% of their portfolio Newtown, PA 250,000250.0k $890.0k $890.0k 0.39% Added +89.5k +89,500
27 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 222,053222.1k $790.5k $790.5k 0.00% Added +131.0k +131,037
28 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 208,265208.3k $741.4k $741.4k 0.00% Added +20.7k +20,731
29 T3 Companies, LLC 0.92% of their portfolio NEW YORK, NY 201,100201.1k $715.9k $715.9k 0.92% First filing
30 TIFF ADVISORY SERVICES, LLC 0.12% of their portfolio RADNOR, PA 195,569195.6k $696.2k $696.2k 0.12% Reduced -661.1k -661,059
31 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 193,141193.1k $687.6k $687.6k 0.00% Reduced -757.9k -757,860
32 Informed Momentum Co LLC 0.07% of their portfolio SOLANA BEACH, CA 182,509182.5k $649.7k $649.7k 0.07% Unchanged
33 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 180,300180.3k $641.9k $641.9k 0.00% Added +155.1k +155,136
34 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 155,724155.7k $554.4k $554.4k 0.00% New
35 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 138,838138.8k $494.3k $494.3k 0.00% Added +6.9k +6,941
36 ExodusPoint Capital Management, LP 0.00% of their portfolio NEW YORK, NY 117,326117.3k $417.7k $417.7k 0.00% Added +2.1k +2,083
37 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 111,553111.6k $397.1k $397.1k 0.00% New
38 State of Wyoming 0.04% of their portfolio CHEYENNE, WY 106,673106.7k $379.8k $379.8k 0.04% Added +43.7k +43,688
39 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 106,452106.5k $379.0k $379.0k 0.00% Added +20.6k +20,605
40 KINGSWOOD WEALTH ADVISORS, LLC 0.02% of their portfolio SAN DIEGO, CA 98,70098.7k $351.4k $351.4k 0.02% Added +21.1k +21,100
41 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 85,85185.9k $305.6k $305.6k 0.00% Added +4.5k +4,489
42 BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 85,23085.2k $303.4k $303.4k 0.01% Reduced -162.7k -162,654
43 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 83,60183.6k $297.6k $297.6k 0.00% Added +45.2k +45,234
44 Lee Financial Co 0.04% of their portfolio Dallas, TX 81,36281.4k $289.6k $289.6k 0.04% Unchanged
45 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 78,63378.6k $279.9k $279.9k 0.00% New
46 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 76,67276.7k $273.0k $273.0k 0.00% Unchanged
47 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 74,58574.6k $265.5k $265.5k 0.00% Reduced -8.8k -8,794
48 GSA CAPITAL PARTNERS LLP 0.02% of their portfolio LONDON, X0 70,65470.7k $252.0k $252.0k 0.02% New
49 Fielder Capital Group LLC 0.05% of their portfolio NASHVILLE, TN 70,19270.2k $249.9k $249.9k 0.05% Unchanged
50 WealthShield Partners, LLC 0.03% of their portfolio CARY, NC 70,15470.2k $249.7k $249.7k 0.03% Unchanged
51 Point72 Asset Management, L.P. 0.00% of their portfolio STAMFORD, CT 69,27569.3k $246.6k $246.6k 0.00% New
52 Private Advisor Group, LLC 0.00% of their portfolio MORRISTOWN, NJ 62,22262.2k $221.5k $221.5k 0.00% Reduced -6.7k -6,700
53 GROUP ONE TRADING LLC 0.01% of their portfolio CHICAGO, IL 62,14062.1k $221.2k $221.2k 0.01% New
54 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 61,76461.8k $219.9k $219.9k 0.00% Reduced -80.8k -80,790
55 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 61,60061.6k $219.3k $219.3k 0.00% Unchanged
56 Caption Management, LLC 0.01% of their portfolio OKLAHOMA CITY, OK 50,10050.1k $178.4k $178.4k 0.01% New
57 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 48,07248.1k $171.1k $171.1k 0.00% Added +4.0k +4,007
58 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 47,84847.8k $170.3k $170.3k 0.00% Reduced -40.6k -40,633
59 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 47,01247.0k $167.4k $167.4k 0.00% Added +8.4k +8,425
60 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 46,52246.5k $165.6k $165.6k 0.00% New
61 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 46,44846.4k $165.4k $165.4k 0.00% Reduced -5.3k -5,276
62 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 40,45540.5k $144.0k $144.0k 0.00% Added +18.8k +18,819
63 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 38,00238.0k $136.0k $136.0k 0.00% Added +8.2k +8,238
64 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 31,66631.7k $112.7k $112.7k 0.00% Added +4.5k +4,514
65 nVerses Capital, LLC 0.25% of their portfolio WELLINGTON, FL 31,59531.6k $112.5k $112.5k 0.25% New
66 Larson Financial Group LLC 0.00% of their portfolio ST LOUIS, MO 31,46831.5k $112.0k $112.0k 0.00% Added +5.2k +5,181
67 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 31,18031.2k $111.0k $111.0k 0.00% Reduced -11.7k -11,745
68 MANGROVE PARTNERS IM, LLC 0.01% of their portfolio Greenwich, CT 30,58130.6k $108.9k $108.9k 0.01% New
69 Aquatic Capital Management LLC 0.00% of their portfolio CHICAGO, IL 29,58829.6k $105.3k $105.3k 0.00% New
70 Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P. 0.01% of their portfolio FORT WORTH, TX 29,53429.5k $105.1k $105.1k 0.01% New
71 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 25,27925.3k $90.0k $90.0k 0.00% Reduced -58.1k -58,121
72 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 24,28724.3k $86.5k $86.5k 0.00% Reduced -21.0k -20,958
73 Caitong International Asset Management Co., Ltd 0.02% of their portfolio HONG KONG, K3 22,46622.5k $80.0k $80.0k 0.02% Added +19.2k +19,190
74 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 21,83121.8k $77.7k $77.7k 0.00% Added +1.0k +1,037
75 EntryPoint Capital, LLC 0.03% of their portfolio NEW YORK, NY 18,45618.5k $65.7k $65.7k 0.03% New
76 NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio MONTREAL, A8 17,73317.7k $63.0k $63.0k 0.00% Reduced -73.7k -73,708
77 INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio WEST PALM BEACH, FL 17,72217.7k $63.1k $63.1k 0.00% Reduced -1.9k -1,887
78 SG Americas Securities, LLC 0.00% of their portfolio NEW YORK, NY 16,13716.1k $57.0k $57.0k 0.00% Reduced -12.2k -12,208
79 RWA WEALTH PARTNERS, LLC 0.00% of their portfolio BOSTON, MA 15,63315.6k $55.7k $55.7k 0.00% New
80 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 15,42915.4k $54.9k $54.9k 0.00% New
81 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 15,38615.4k $54.8k $54.8k 0.00% Unchanged
82 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 14,97815.0k $53.3k $53.3k 0.00% Added +2.9k +2,859
83 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 14,76514.8k $52.6k $52.6k 0.00% Reduced -3.0k -2,970
84 ProShare Advisors LLC 0.00% of their portfolio BETHESDA, MD 12,46912.5k $44.4k $44.4k 0.00% Added +2.2k +2,208
85 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 11,84611.8k $42.2k $42.2k 0.00% Added +928 +928
86 Intrua Financial, LLC 0.00% of their portfolio Houston, TX 11,67611.7k $41.6k $41.6k 0.00% Reduced -5.7k -5,738
87 R Squared Ltd 0.02% of their portfolio HONG KONG, K3 11,46211.5k $40.8k $40.8k 0.02% New
88 Pekin Hardy Strauss, Inc. 0.00% of their portfolio CHICAGO, IL 10,00010.0k $35.6k $35.6k 0.00% New
89 AMG National Trust Bank 0.00% of their portfolio GREENWOOD VILLAGE, CO 10,00010.0k $35.6k $35.6k 0.00% Unchanged
90 Kestra Advisory Services, LLC 0.00% of their portfolio AUSTIN, TX 8,6808.7k $30.9k $30.9k 0.00% New
91 Legal & General Group Plc 0.00% of their portfolio London, X0 7,7247.7k $27.5k $27.5k 0.00% Added +1.1k +1,148
92 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 7,0027.0k $24.9k $24.9k 0.00% Added +4.8k +4,785
93 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 6,0266.0k $21.5k $21.5k 0.00% Unchanged
94 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 5,6005.6k $19.9k $19.9k 0.00% Unchanged
95 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 5,3475.3k $19.0k $19.0k 0.00% Reduced -8.3k -8,286
96 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 5,1065.1k $18.0k $18.0k 0.00% Added +3.6k +3,568
97 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 4,9314.9k $17.6k $17.6k 0.00% Added +42 +42
98 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 4,2024.2k $15.0k $15.0k 0.00% Added +517 +517
99 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 3,5003.5k $12.5k $12.5k 0.00% Unchanged
100 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 2,1442.1k $8.0k $8.0k 0.00% Added +128 +128