S&T Bancorp, Inc.
US ˙ NasdaqGS ˙ US7838591011

SecuritySTBA / S&T Bancorp, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership93,642 shares
Latest Disclosed Value $ 3,917,045
Citadel Advisors Llc reports 40.79% increase in ownership of STBA / S&T Bancorp, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 93,642 shares of S&T Bancorp, Inc. (US:STBA) valued at $3,917,045 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 66,510 shares of S&T Bancorp, Inc.. This represents a change in shares of 40.79% during the quarter. The current value of the position is $4,126,803 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F S & T BANCORP COM 783859101 93,642 27,132 40.79 3,917 49.68 0.0006
2026-02-17 2025-12-31 13F S & T BANCORP COM 783859101 66,510 22,858 52.36 2,617 59.57 0.0003
2025-11-14 2025-09-30 13F S & T BANCORP COM 783859101 43,652 5,624 14.79 1,641 14.05 0.0002
2025-08-14 2025-06-30 13F S & T BANCORP COM 783859101 38,028 20,703 119.50 1,438 124.34 0.0002
2025-05-15 2025-03-31 13F S & T BANCORP COM 783859101 17,325 -6,375 -26.90 642 -29.17 0.0001
2025-02-14 2024-12-31 13F S & T BANCORP COM 783859101 23,700 4,809 25.46 906 14.27 0.0002
2024-11-14 2024-09-30 13F S & T BANCORP COM 783859101 18,891 -6,761 -26.36 793 -7.48 0.0002
2024-08-14 2024-06-30 13F S & T BANCORP COM 783859101 25,652 12,104 89.34 857 97.24 0.0002
2024-05-15 2024-03-31 13F S & T BANCORP COM 783859101 13,548 13,548 435 0.0001
2023-11-14 2023-09-30 13F S & T BANCORP COM 783859101 0 -7,769 -100.00 0 -100.00
2023-08-14 2023-06-30 13F S & T BANCORP COM 783859101 7,769 -8,841 -53.23 211 -59.58 0.0000
2023-05-15 2023-03-31 13F S & T BANCORP COM 783859101 16,610 1,085 6.99 522 -1.51 0.0001
2023-02-14 2022-12-31 13F S & T BANCORP COM 783859101 15,525 15,525 531 0.0001
2022-11-14 2022-09-30 13F S & T BANCORP COM 783859101 0 -51,024 -100.00 0 -100.00
2022-08-15 2022-06-30 13F S & T BANCORP COM 783859101 51,024 39,382 338.28 1,399 306.69 0.0004
2022-05-16 2022-03-31 13F S & T BANCORP COM 783859101 11,642 11,642 344 0.0001
2022-02-14 2021-12-31 13F S & T BANCORP Cmn 783859101 0 -40,077 -100.00 0 -100.00
2021-11-15 2021-09-30 13F S & T BANCORP Cmn 783859101 40,077 18,239 83.52 1,181 72.66 0.0002
2021-08-16 2021-06-30 13F S & T BANCORP COM 783859101 21,838 -10,568 -32.61 684 -37.02 0.0002
2021-05-21 2021-03-31 13F/A-1 S & T BANCORP COM 783859101 32,406 3,890 13.64 1,086 53.39 0.0003
2021-05-17 2021-03-31 13F S & T BANCORP COM 783859101 32,406 3,890 1,086 0.0003
2021-02-16 2020-12-31 13F S & T BANCORP COM 783859101 28,516 -61,585 -68.35 708 -55.58 0.0002
2020-11-16 2020-09-30 13F S & T BANCORP COM 783859101 90,101 25,416 39.29 1,594 5.08 0.0005
2020-08-14 2020-06-30 13F S & T BANCORP Cmn 783859101 64,685 12,645 24.30 1,517 6.68 0.0005
2020-05-15 2020-03-31 13F S & T BANCORP Cmn 783859101 52,040 -10,354 -16.59 1,422 -43.44 0.0006
2020-02-14 2019-12-31 13F S & T BANCORP Cmn 783859101 62,394 -16,771 -21.18 2,514 -13.04 0.0011
2019-11-14 2019-09-30 13F S & T BANCORP Cmn 783859101 79,165 25,938 48.73 2,891 44.91 0.0014
2019-08-14 2019-06-30 13F S & T BANCORP Cmn 783859101 53,227 23,603 79.68 1,995 70.37 0.0009
2019-05-15 2019-03-31 13F S & T BANCORP Cmn 783859101 29,624 7,035 31.14 1,171 36.96 0.0006
2019-02-14 2018-12-31 13F S & T BANCORP Cmn 783859101 22,589 3,737 19.82 855 4.65 0.0005
2018-11-13 2018-09-30 13F S & T BANCORP Cmn 783859101 18,852 -1,853 -8.95 817 -8.82 0.0004
2018-08-14 2018-06-30 13F/A-1 S & T BANCORP Cmn 783859101 20,705 5,404 35.32 896 46.64 0.0004
2018-08-10 2018-06-30 13F S & T BANCORP Cmn 783859101 20,705 5,404 896
2018-05-14 2018-03-31 13F/A-1 S & T BANCORP Cmn 783859101 15,301 -11,014 -41.85 611 -41.64 0.0003
2018-05-11 2018-03-31 13F S & T BANCORP Cmn 783859101 15,301 -11,014 611
2018-02-09 2017-12-31 13F S & T BANCORP Cmn 783859101 26,315 -17,440 -39.86 1,047 -39.55 0.0006
2017-11-09 2017-09-30 13F S & T BANCORP Cmn 783859101 43,755 -3,462 -7.33 1,732 2.30 0.0013
2017-08-11 2017-06-30 13F S & T BANCORP Cmn 783859101 47,217 30,907 189.50 1,693 200.18 0.0014
2017-05-12 2017-03-31 13F S & T BANCORP Cmn 783859101 16,310 -11,118 -40.54 564 -47.34 0.0005
2017-02-10 2016-12-31 13F S & T BANCORP Cmn 783859101 27,428 4,717 20.77 1,071 62.77 0.0011
2017-01-31 2016-09-30 13F/A-1 S & T BANCORP Cmn 783859101 22,711 22,711 0.00 658 0.0007
2016-11-10 2016-09-30 13F S & T BANCORP INC CMN STK Cmn 783859101 22,711 658
2017-01-31 2016-06-30 13F/A-1 S & T BANCORP INC CMN STK Cmn 783859101 0 -8,320 -100.00 0 -100.00
2017-01-31 2016-03-31 13F/A-1 S & T BANCORP Cmn 783859101 8,320 -16,224 -66.10 214 -55.51 0.0003
2016-05-13 2016-03-31 13F S & T BANCORP INC CMN STK Cmn 783859101 8,320 214
2013-08-14 2013-06-30 13F S & T BANCORP INC CMN STK Cmn 783859101 24,544 24,544 481 0.0008
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.