CIK: 1021258
BALDWIN BROTHERS LLC/MA
Address: 204 Spring Street, Marion, MA 02738
α Alpha 0.7600↭ Flow 0.3200Mixed Active/Passive
253holdings (Q4 2025)
$1.56B13F reported value
+19 NEW+96 INCREASED-100 DECREASED-11 EXITED27 UNCHANGED
Total (Q4 25): $1,563,792,555
Top Holdings by Value
Position Changes (Q4 vs Q3)
Top 15 Positions ($)
Historical AUM (13F Reported)
$1.33B+$0.18B QoQPortfolio Value History (13F Reported)
Quarterly 13F portfolio value. QoQ change reflects value of disclosed long equity positions (new buys, sells, and price movements combined).
| Quarter | Portfolio Value | QoQ Change | QoQ % |
|---|---|---|---|
| Q4 25 | $1.56B | +$0.03B | +1.9% |
| Q3 25 | $1.54B | +$0.06B | +4.3% |
| Q2 25 | $1.47B | +$0.05B | +3.3% |
| Q1 25 | $1.43B | $-0.02B | -1.5% |
| Q4 24 | $1.45B | $-0.02B | -1.3% |
| Q3 24 | $1.47B | +$0.18B | +14.3% |
| Q2 24 | $1.28B | $-0.04B | -3.3% |
| Q1 24 | $1.33B | +$0.05B | +4.3% |
| Q4 23 | $1.27B | +$0.11B | +9.5% |
| Q3 23 | $1.16B | $-0.06B | -4.7% |
| Q2 23 | $1.22B | +$0.07B | +6.3% |
| Q1 23 | $1.15B | — | — |
QoQ = (quarter 13F value − prior quarter value) ÷ prior quarter value. Includes position changes, new buys, and exits. Not investment advice.
Information for Viewing 13F Reports:
- Name: The name of the company.
- CUSIP: A unique 9-character alphanumeric code that identifies a specific stock or security in the U.S.
- Class: The investment company's series name. A registered investment company may have multiple series, each with a separate securities portfolio.
- Value: The monetary value of the holdings in USD.
- Shares: The number of shares held.
- Share Price: The price of shares at the time of filing.
- Investment: The type of investment.
- % of Portfolio: The percentage that this position represents in the total portfolio.
| Quarter | Period of Report | Holdings | Value | Type | Filling Date | Filling ID |
|---|---|---|---|---|---|---|
| Q4 25 | 31-Dec-2025 | 292 | $1,563,792,555 | 13F-HR | 7-Jan-2026 | 0001193125-26-005964 |
| Q3 25 | 30-Sep-2025 | 261 | $1,535,160,959 | 13F-HR | 14-Oct-2025 | 0001193125-25-238383 |
| Q2 25 | 30-Jun-2025 | 248 | $1,472,465,864 | 13F-HR | 24-Jul-2025 | 0000950123-25-006571 |
| Q1 25 | 31-Mar-2025 | 253 | $1,425,475,040 | 13F-HR | 14-Apr-2025 | 0000950123-25-003482 |
| Q4 24 | 31-Dec-2024 | 292 | $1,447,914,099 | 13F-HR | 22-Jan-2025 | 0000950123-25-000483 |
| Q3 24 | 30-Sep-2024 | 1161 | $1,467,253,561 | 13F-HR | 16-Oct-2024 | 0000950123-24-009702 |
| Q2 24 | 30-Jun-2024 | 854 | $1,283,652,411 | 13F-HR | 12-Jul-2024 | 0000950123-24-006490 |
| Q1 24 | 31-Mar-2024 | 767 | $1,327,617,017 | 13F-HR | 12-Apr-2024 | 0000950123-24-003254 |
| Q4 23 | 31-Dec-2023 | 801 | $1,272,878,748 | 13F-HR | 8-Jan-2024 | 0000950123-24-000075 |
| Q3 23 | 30-Sep-2023 | 833 | $1,162,129,147 | 13F-HR | 10-Oct-2023 | 0000950123-23-008737 |
| Q2 23 | 30-Jun-2023 | 842 | $1,219,137,091 | 13F-HR | 14-Jul-2023 | 0000950123-23-006100 |
| Q1 23 | 31-Mar-2023 | 883 | $1,147,367,995 | 13F-HR | 21-Apr-2023 | 0000950123-23-003335 |
| Q4 22 | 31-Dec-2022 | 968 | $1,102,617,356 | 13F-HR | 27-Jan-2023 | 0000950123-23-000402 |
| Q3 22 | 30-Sep-2022 | 773 | $723,340,000 | 13F-HR | 14-Oct-2022 | 0000950123-22-010266 |
| Q2 22 | 30-Jun-2022 | 798 | $771,243,000 | 13F-HR | 18-Jul-2022 | 0000950123-22-007244 |
| Q1 22 | 31-Mar-2022 | 776 | $943,529,000 | 13F-HR | 13-Apr-2022 | 0000950123-22-003965 |
| Q4 21 | 31-Dec-2021 | 728 | $999,715,000 | 13F-HR | 14-Jan-2022 | 0000950123-22-000242 |
| Q3 21 | 30-Sep-2021 | 745 | $901,104,000 | 13F-HR | 27-Oct-2021 | 0000950123-21-013573 |
| Q2 21 | 30-Jun-2021 | 763 | $915,143,000 | 13F-HR | 30-Jul-2021 | 0000950123-21-009393 |
| Q1 21 | 31-Mar-2021 | 722 | $841,904,000 | 13F-HR | 8-Apr-2021 | 0000950123-21-004349 |
| Q4 20 | 31-Dec-2020 | 637 | $795,358,000 | 13F-HR | 12-Jan-2021 | 0000950123-21-000276 |
| Q3 20 | 30-Sep-2020 | 628 | $731,196,000 | 13F-HR | 16-Oct-2020 | 0000950123-20-010290 |
| Q2 20 | 30-Jun-2020 | 621 | $681,825,000 | 13F-HR | 21-Jul-2020 | 0000950123-20-007071 |
| Q1 20 | 31-Mar-2020 | 637 | $571,384,000 | 13F-HR | 15-Apr-2020 | 0000950123-20-003351 |
| Q4 19 | 31-Dec-2019 | 627 | $715,277,000 | 13F-HR | 29-Jan-2020 | 0000950123-20-000611 |
| Q3 19 | 30-Sep-2019 | 609 | $664,283,000 | 13F-HR | 10-Oct-2019 | 0000950123-19-009432 |
| Q2 19 | 30-Jun-2019 | 602 | $678,622,000 | 13F-HR | 19-Jul-2019 | 0000950123-19-006473 |
| Q1 19 | 31-Mar-2019 | 603 | $671,391,000 | 13F-HR | 24-Apr-2019 | 0000950123-19-003567 |
| Q4 18 | 31-Dec-2018 | 603 | $596,331,000 | 13F-HR | 1-Feb-2019 | 0000950123-19-000550 |
| Q3 18 | 30-Sep-2018 | 618 | $714,140,000 | 13F-HR | 26-Oct-2018 | 0000950123-18-010223 |
| Q2 18 | 30-Jun-2018 | 518 | $643,401,000 | 13F-HR | 24-Jul-2018 | 0000950123-18-006954 |
| Q1 18 | 31-Mar-2018 | 497 | $618,185,000 | 13F-HR | 16-Apr-2018 | 0000950123-18-003550 |
| Q4 17 | 31-Dec-2017 | 480 | $642,087,000 | 13F-HR | 24-Jan-2018 | 0000950123-18-000366 |
| Q1 17 | 31-Mar-2017 | 500 | $606,437 | 13F-HR | 17-Apr-2017 | 0000950123-17-003478 |
| Q4 16 | 31-Dec-2016 | 520 | $553,602 | 13F-HR | 10-Jan-2017 | 0000950123-17-000126 |
| Q3 16 | 30-Sep-2016 | 539 | $551,141 | 13F-HR | 8-Nov-2016 | 0000950123-16-021368 |
| Q2 16 | 30-Jun-2016 | 522 | $485,984 | 13F-HR | 11-Aug-2016 | 0000950123-16-019433 |
| Q1 16 | 31-Mar-2016 | 501 | $557,097 | 13F-HR | 12-May-2016 | 0000950123-16-016774 |
| Q4 15 | 31-Dec-2015 | 236 | $614,158 | 13F-HR | 11-Feb-2016 | 0000950123-16-014054 |