1st Source Corporation
US ˙ NasdaqGS ˙ US3369011032

SecuritySRCE / 1st Source Corporation
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership122,814 shares
Latest Disclosed Value $ 8,499,957
Renaissance Technologies Llc reports 17.64% decrease in ownership of SRCE / 1st Source Corporation

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 122,814 shares of 1st Source Corporation (US:SRCE) valued at $8,499,957 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 149,127 shares of 1st Source Corporation. This represents a change in shares of -17.64% during the quarter. The current value of the position is $9,168,065 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)
2026-05-14 2026-03-31 13F 1ST SOURCE COM 336901103 122,814 -26,313 -17.64 8,500 -8.79 0.0133
2026-02-12 2025-12-31 13F 1ST SOURCE COM 336901103 149,127 -26,517 -15.10 9,319 -13.82 0.0145
2025-11-13 2025-09-30 13F 1ST SOURCE COM 336901103 175,644 11,730 7.16 10,813 6.27 0.0143
2025-08-13 2025-06-30 13F 1ST SOURCE COM 336901103 163,914 -700 -0.43 10,174 3.34 0.0135
2025-05-14 2025-03-31 13F 1ST SOURCE COM 336901103 164,614 22,600 15.91 9,846 18.76 0.0149
2025-02-13 2024-12-31 13F 1ST SOURCE COM 336901103 142,014 -6,300 -4.25 8,291 -6.65 0.0123
2024-11-13 2024-09-30 13F 1ST SOURCE COM 336901103 148,314 2,600 1.78 8,881 13.67 0.0134
2024-08-09 2024-06-30 13F 1ST SOURCE COM 336901103 145,714 12,774 9.61 7,813 130,116.67 0.0133
2024-05-13 2024-03-31 13F 1ST SOURCE COM 336901103 132,940 -400 -0.30 7 -14.29 0.0110
2024-02-13 2023-12-31 13F 1ST SOURCE COM 336901103 133,340 -4,574 -3.32 7 40.00 0.0113
2023-11-14 2023-09-30 13F 1ST SOURCE COM 336901103 137,914 -15,500 -10.10 6 -16.67 0.0099
2023-08-11 2023-06-30 13F 1ST SOURCE COM 336901103 153,414 13,574 9.71 6 0.00 0.0093
2023-05-12 2023-03-31 13F 1ST SOURCE COM 336901103 139,840 -2,200 -1.55 6 -14.29 0.0080
2023-02-13 2022-12-31 13F 1ST SOURCE COM 336901103 142,040 -11,800 -7.67 8 -99.90 0.0103
2022-11-14 2022-09-30 13F 1ST SOURCE COM 336901103 153,840 -15,400 -9.10 7,123 -7.29 0.0101
2022-08-12 2022-06-30 13F 1ST SOURCE COM 336901103 169,240 9,026 5.63 7,683 3.68 0.0091
2022-05-13 2022-03-31 13F 1ST SOURCE COM 336901103 160,214 -3,926 -2.39 7,410 -8.98 0.0087
2022-02-11 2021-12-31 13F 1ST SOURCE COM 336901103 164,140 -12,700 -7.18 8,141 -2.55 0.0101
2021-11-12 2021-09-30 13F 1ST SOURCE COM 336901103 176,840 -18,400 -9.42 8,354 -7.90 0.0108
2021-08-13 2021-06-30 13F 1ST SOURCE COM 336901103 195,240 -54,600 -21.85 9,071 -23.69 0.0113
2021-05-13 2021-03-31 13F 1ST SOURCE COM 336901103 249,840 -71,400 -22.23 11,887 -8.18 0.0148
2021-02-10 2020-12-31 13F 1ST SOURCE COM 336901103 321,240 -47,074 -12.78 12,946 13.97 0.0141
2020-11-13 2020-09-30 13F 1ST SOURCE COM 336901103 368,314 -29,800 -7.49 11,359 -19.81 0.0113
2020-08-13 2020-06-30 13F 1ST SOURCE COM 336901103 398,114 -51,300 -11.41 14,165 -2.81 0.0122
2020-05-14 2020-03-31 13F 1ST SOURCE COM 336901103 449,414 94,900 26.77 14,574 -20.76 0.0142
2020-02-13 2019-12-31 13F 1ST SOURCE COM 336901103 354,514 19,500 5.82 18,392 20.05 0.0141
2019-11-13 2019-09-30 13F 1ST SOURCE COM 336901103 335,014 15,800 4.95 15,320 3.43 0.0130
2019-08-12 2019-06-30 13F 1ST SOURCE COM 336901103 319,214 33,500 11.73 14,812 15.44 0.0130
2019-05-14 2019-03-31 13F 1ST SOURCE COM 336901103 285,714 34,029 13.52 12,831 26.38 0.0117
2019-02-12 2018-12-31 13F 1ST SOURCE COM 336901103 251,685 26,671 11.85 10,153 -14.25 0.0111
2018-11-13 2018-09-30 13F 1ST SOURCE COM 336901103 225,014 -7,800 -3.35 11,840 -4.82 0.0122
2018-08-13 2018-06-30 13F/A-1 1ST SOURCE COM 336901103 232,814 38,100 19.57 12,439 26.21 0.0136
2018-08-13 2018-06-30 13F 1ST SOURCE COM 336901103 194,714 9,856
2018-05-14 2018-03-31 13F 1ST SOURCE COM 336901103 194,714 75,574 63.43 9,856 67.31 0.0108
2018-02-13 2017-12-31 13F 1ST SOURCE COM 336901103 119,140 700 0.59 5,891 -2.09 0.0065
2017-11-13 2017-09-30 13F 1ST SOURCE COM 336901103 118,440 9,400 8.62 6,017 15.11 0.0071
2017-08-11 2017-06-30 13F 1ST SOURCE COM 336901103 109,040 13,600 14.25 5,227 16.65 0.0067
2017-05-12 2017-03-31 13F 1ST SOURCE COM 336901103 95,440 -1,900 -1.95 4,481 3.08 0.0063
2017-02-13 2016-12-31 13F 1ST SOURCE COM 336901103 97,340 800 0.83 4,347 26.15 0.0069
2016-11-14 2016-09-30 13F 1ST SOURCE COM 336901103 96,540 1,800 1.90 3,446 12.28 0.0061
2016-08-12 2016-06-30 13F 1ST SOURCE COM 336901103 94,740 -2,200 -2.27 3,069 -0.58 0.0058
2016-05-13 2016-03-31 13F 1ST SOURCE COM 336901103 96,940 18,232 23.16 3,087 27.04 0.0059
2016-02-11 2015-12-31 13F 1ST SOURCE COM 336901103 78,708 12,294 18.51 2,430 18.77 0.0053
2015-11-12 2015-09-30 13F 1ST SOURCE COM 336901103 66,414 34,214 106.25 2,046 86.17 0.0049
2015-08-14 2015-06-30 13F 1ST SOURCE COM 336901103 32,200 13,500 72.19 1,099 82.86 0.0025
2015-05-13 2015-03-31 13F 1ST SOURCE COM 336901103 18,700 9,400 101.08 601 88.40 0.0013
2015-02-13 2014-12-31 13F 1ST SOURCE COM 336901103 9,300 9,300 319 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.