CIK: 312348
LOOMIS SAYLES & CO L P
Address: ONE FINANCIAL CENTER, 5TH FLOOR, BOSTON, MA 02111
α Alpha 0.73↭ Flow 0.74Mixed Active/Passive
781holdings (Q4 2025)
$82.95B13F reported value
+69 NEW+290 INCREASED-278 DECREASED-86 EXITED58 UNCHANGED
Total (Q4 25): $82,951,227,562
Top Holdings by Value
Position Changes (Q4 vs Q3)
Top 15 Positions ($)
Historical AUM (13F Reported)
$0.07B+$0.01B 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 | $82.95B | $-1.12B | -1.3% |
| Q3 25 | $84.08B | +$4.28B | +5.4% |
| Q2 25 | $79.80B | +$79.73B | +115,220.3% |
| Q1 25 | $0.07B | $-0.01B | -12.7% |
| Q4 24 | $0.08B | +$0.00B | +4.0% |
| Q3 24 | $0.08B | +$0.00B | +5.0% |
| Q2 24 | $0.07B | +$0.00B | +3.2% |
| Q1 24 | $0.07B | +$0.01B | +7.7% |
| Q4 23 | $0.07B | +$0.01B | +12.2% |
| Q3 23 | $0.06B | $0.00B | -6.2% |
| Q2 23 | $0.06B | +$0.00B | +7.6% |
| Q1 23 | $0.06B | — | — |
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 | 1124 | $82,951,227,562 | 13F-HR | 12-Feb-2026 | 0000312348-26-000014 |
| Q3 25 | 30-Sep-2025 | 1132 | $84,075,470,214 | 13F-HR | 13-Nov-2025 | 0000312348-25-000035 |
| Q2 25 | 30-Jun-2025 | 1145 | $79,798,430,447 | 13F-HR | 13-Aug-2025 | 0000312348-25-000028 |
| Q1 25 | 31-Mar-2025 | 1086 | $69,197,207 | 13F-HR | 14-May-2025 | 0000312348-25-000021 |
| Q4 24 | 31-Dec-2024 | 1079 | $79,227,034 | 13F-HR | 12-Feb-2025 | 0000312348-25-000014 |
| Q3 24 | 30-Sep-2024 | 1044 | $76,159,174 | 13F-HR | 13-Nov-2024 | 0000312348-24-000037 |
| Q2 24 | 30-Jun-2024 | 1079 | $72,554,232 | 13F-HR | 13-Aug-2024 | 0000312348-24-000023 |
| Q1 24 | 31-Mar-2024 | 1058 | $70,314,804 | 13F-HR | 14-May-2024 | 0000312348-24-000008 |
| Q4 23 | 31-Dec-2023 | 1326 | $65,302,820 | 13F-HR | 13-Feb-2024 | 0000312348-24-000004 |
| Q3 23 | 30-Sep-2023 | 1277 | $58,207,443 | 13F-HR | 9-Nov-2023 | 0000312348-23-000020 |
| Q2 23 | 30-Jun-2023 | 1343 | $62,031,911 | 13F-HR | 11-Aug-2023 | 0000312348-23-000017 |
| Q1 23 | 31-Mar-2023 | 1258 | $56,734,819 | 13F-HR | 11-May-2023 | 0000312348-23-000012 |
| Q1 23 | 31-Mar-2023 | 1340 | $57,639,478 | 13F-HR/A | 15-May-2023 | 0000312348-23-000014 |
| Q4 22 | 31-Dec-2022 | 1195 | $49,949,372 | 13F-HR | 10-Feb-2023 | 0000312348-23-000006 |
| Q3 22 | 30-Sep-2022 | 1297 | $49,364,398,000 | 13F-HR | 14-Nov-2022 | 0000312348-22-000018 |
| Q2 22 | 30-Jun-2022 | 1328 | $53,886,398,000 | 13F-HR | 5-Aug-2022 | 0000312348-22-000016 |
| Q1 22 | 31-Mar-2022 | 1409 | $74,830,717,000 | 13F-HR | 13-May-2022 | 0000312348-22-000014 |
| Q4 21 | 31-Dec-2021 | 1168 | $82,661,155,000 | 13F-HR | 14-Feb-2022 | 0000312348-22-000007 |
| Q3 21 | 30-Sep-2021 | 1290 | $81,326,759,000 | 13F-HR | 12-Nov-2021 | 0000312348-21-000040 |
| Q2 21 | 30-Jun-2021 | 1223 | $82,503,176,000 | 13F-HR | 13-Aug-2021 | 0000312348-21-000031 |
| Q1 21 | 31-Mar-2021 | 1216 | $77,246,291,000 | 13F-HR | 17-May-2021 | 0000312348-21-000027 |
| Q4 20 | 31-Dec-2020 | 1174 | $75,652,365,000 | 13F-HR | 12-Feb-2021 | 0000312348-21-000010 |
| Q3 20 | 30-Sep-2020 | 1004 | $68,715,928,000 | 13F-HR | 12-Nov-2020 | 0000312348-20-000025 |
| Q2 20 | 30-Jun-2020 | 1045 | $62,300,383,000 | 13F-HR | 14-Aug-2020 | 0000312348-20-000023 |
| Q1 20 | 31-Mar-2020 | 1090 | $48,539,216,000 | 13F-HR | 15-May-2020 | 0000312348-20-000021 |
| Q4 19 | 31-Dec-2019 | 1125 | $58,816,848,000 | 13F-HR | 14-Feb-2020 | 0000312348-20-000012 |
| Q3 19 | 30-Sep-2019 | 1056 | $51,954,123,000 | 13F-HR | 13-Nov-2019 | 0000312348-19-000029 |
| Q2 19 | 30-Jun-2019 | 856 | $53,564,553,000 | 13F-HR | 14-Aug-2019 | 0001435066-19-000007 |
| Q1 19 | 31-Mar-2019 | 1064 | $50,907,991,000 | 13F-HR | 15-May-2019 | 0000312348-19-000022 |
| Q4 18 | 31-Dec-2018 | 1131 | $42,376,255,000 | 13F-HR | 14-Feb-2019 | 0000312348-19-000011 |
| Q3 18 | 30-Sep-2018 | 1192 | $51,036,800,000 | 13F-HR | 13-Nov-2018 | 0000312348-18-000027 |
| Q2 18 | 30-Jun-2018 | 1173 | $49,450,349,000 | 13F-HR | 14-Aug-2018 | 0000312348-18-000024 |
| Q1 18 | 31-Mar-2018 | 1195 | $47,149,808,000 | 13F-HR | 11-May-2018 | 0000312348-18-000022 |
| Q4 17 | 31-Dec-2017 | 1156 | $48,048,359,000 | 13F-HR | 14-Feb-2018 | 0000312348-18-000012 |
| Q4 16 | 31-Dec-2016 | 1350 | $40,721,043 | 13F-HR | 14-Feb-2017 | 0000312348-17-000010 |
| Q2 16 | 30-Jun-2016 | 1335 | $36,799,349 | 13F-HR | 12-Aug-2016 | 0000312348-16-000065 |
| Q1 16 | 31-Mar-2016 | 1406 | $35,211,637 | 13F-HR | 13-May-2016 | 0000312348-16-000061 |
| Q4 15 | 31-Dec-2015 | 1398 | $35,481,848 | 13F-HR | 12-Feb-2016 | 0000312348-16-000034 |