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Private company

LOOMIS SAYLES & CO L P

Last updated Oct 21, 2026.

Overview

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Corporate structure

LOOMIS SAYLES & CO L P is part of a group headed by Bpce. 102 entities, 4 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (7 companies); owners and owned firms from Form ADV, the registration investment advisers file with the SEC. Each entity in the chart links to its source.

Investment adviser

LOOMIS SAYLES & CO L P is registered with the SEC as an investment adviser. This is what it reports on Form ADV, the registration every adviser files and keeps current.

  • Assets it manages$386.9B2 24,675 accounts, $355.8B with discretion
  • Employees728 728 in investment advice or research
  • ClientsInvestment companies: 67 ($103.9B); Pension and profit sharing plans (but not the plan participants or: 385 ($68.0B); Pooled investment vehicles (other than investment companies and: 115 ($58.9B); State or municipal government entities (including government pension: 171 ($45.6B); Other: CLIENTS WHERE LOOMIS SAYLES POSSESSED INSUFFICIENT: 68 ($31.3B); Corporations or other businesses not listed above: 672 ($23.1B); Sovereign wealth funds and foreign official institutions: 9 ($20.5B); Insurance companies: 230 ($20.4B); High net worth individuals: 22,662 ($12.8B); Charitable organizations: 293 ($2.2B); Other investment advisers: 3 ($102.3M)
  • How it is paidA percentage of assets under its management; Performance-based fees; Other: MINIMUM ANNUAL FEE AND/OR MINIMUM ACCOUNT SIZE
  • What it doesPortfolio management for individuals and/or small businesses; Portfolio management for investment companies; Portfolio management for pooled investment vehicles (other than investment companies); Portfolio management for businesses (other than small businesses) or institutional clients (other than registered investment companies and other pooled investment vehicles); Other: NON-DISCRETIONARY INVESTMENT ADVICE
  • Holds client assetsYes: cash and securities
  • RegistrationSEC 801-170, CRD 105377 IAPD record

Who owns it

Owners of 5% or more as the firm lists them (Schedule A), and the owners of those owners up the chain (Schedule B).

  • NATIXIS INVESTMENT MANAGERS, LLCowns 75% or more, since 12/1997
  • BPCEowns 75% or more of NATIXIS, since 07/2009
  • NATIXISowns 75% or more of NATIXIS INVESTMENT MANAGERS, since 09/2011
  • NATIXIS INVESTMENT MANAGERSowns 75% or more of NATIXIS INVESTMENT, since 06/2005
  • NATIXIS INVESTMENT MANAGERSowns 75% or more of NATIXIS INVESTMENT MANAGERS PARTICIPATIONS 1, since 08/2004

Disciplinary record

The firm answered yes to 3 of the disciplinary questions on Form ADV (Item 11). A yes can concern the firm itself or an affiliate.

  • In the past ten years, the firm or an advisory affiliate has been convicted of or pled guilty or nolo contendere ("no contest") in a domestic, foreign, or military court to any felony.
  • The SEC or the CFTC has found the firm or an advisory affiliate to have been involved in a violation of SEC or CFTC regulations or statutes.
  • The SEC or the CFTC has imposed a civil money penalty on the firm or an advisory affiliate, or ordered the firm or an advisory affiliate to cease and desist from any activity.

Each event as the firm describes it on its Disclosure Reporting Pages:

COMMODITY FUTURES TRADING COMMISSION · Sep 6, 2022 · fine $2,800,000 · final about NATIXIS SA

Allegations: THE COMMODITY FUTURES TRADING COMMISSION ISSUED AN ORDER FILING AND SETTLING CHARGES AGAINST NATIXIS, A GLOBAL BANK AND SWAP DEALER, FOR FAILURE TO DILIGENTLY SUPERVISE TWO TRADERS ON THE BANK'S NEW YORK-BASED INTEREST RATE DERIVATIVES DESK (IRD DESK) AND ITS EQUITY DERIVATIVES FLOW AND SOLUTION TRADING DESK (FAST DESK). THE TRADERS ON THE IRD DESK AND FAST DESK SEPARATELY ENGAGED IN MISCONDUCT BY MISMARKING THEIR POSITIONS FOR THE PURPOSE OF EITHER INFLATING PROFITS AND MINIMIZING LOSSES, OR TO "SMOOTH" OUT RETURNS, RESPECTIVELY. THE ORDER REQUIRES NATIXIS TO PAY A $2.8 MILLION CIVIL MONETARY PENALTY, CEASE AND DESIST FROM VIOLATING APPLICABLE PROVISIONS OF THE COMMODITY EXCHANGE ACT (CEA) AND CFTC REGULATIONS, AND COMPLY WITH CERTAIN CONDITIONS AND UNDERTAKINGS. CASE BACKGROUND: BETWEEN JANUARY 2015 AND AT LEAST APRIL 2018, A TRADER ON THE BANK'S IRD DESK SUBMITTED FALSE OR MISLEADING ENTRIES IN THE BANK'S INTERNAL RECORDKEEPING AND ACCOUNTING SYSTEM RELATING TO THE MARKING OF THE END-OF-DAY USD LIBOR FORWARD CURVE (CLOSING CURVE), FOR THE PURPOSE OF INFLATING THE UNREALIZED PROFIT AND LOSS (P&L) OF THE DESK HE MANAGED AND DISGUISING SIGNIFICANT TRADING LOSSES. SPECIFICALLY, THE TRADER ENGAGED IN A PATTERN OF MARKING THE CLOSING CURVE IN A MANNER THAT VARIED FROM OBSERVED BROKER MID PRICES AND IN A MANNER THAT ALIGNED WITH THE RISK POSITIONS OF THE IRD DESK, WHILE GENERALLY STAYING WITHIN THE LIMITS OF INTERNAL CONTROLS DESIGNED TO DETECT MISMARKING. ALTHOUGH NATIXIS MAINTAINED CERTAIN CONTROLS RELATING TO THE MARKING OF THE CLOSING CURVE, THOSE CONTROLS WERE INSUFFICIENT TO DETECT THE TRADER'S MISCONDUCT FOR OVER THREE YEARS. AT ITS PEAK IN EARLY 2018, THE TRADER'S MISMARKING OF THE CLOSING CURVE OVERSTATED THE P&L OF THE IRD DESK BY APPROXIMATELY $25 MILLION. IN ADDITION, THE ORDER FURTHER FINDS THAT NATIXIS FAILED TO DILIGENTLY SUPERVISE THE ACTIVITIES OF ITS FAST DESK. SPECIFICALLY, BETWEEN FEBRUARY 2017 AND NOVEMBER 2019, TRADERS ON THE FAST DESK MADE CERTAIN MANUAL ADJUSTMENTS TO THE BANK'S INTERNAL TRADE BOOKING SYSTEMS FOR THE PURPOSE OF "SMOOTHING" OR HIDING THE FAST DESK'S P&L AND LATER RELEASING THE P&L DURING DIFFICULT MARKET CONDITIONS. AT ITS PEAK, THE P&L SMOOTHING UNDERSTATED THE UNREALIZED P&L OF THE FAST DESK BY OVER $6 MILLION. THIS MISCONDUCT RENDERED THE BANK'S BOOKS AND RECORDS INACCURATE. IN ACCEPTING THE BANK'S OFFER OF SETTLEMENT, THE CFTC RECOGNIZED ITS SUBSTANTIAL COOPERATION DURING THE DIVISION OF ENFORCEMENT'S INVESTIGATION OF THIS MATTER. THE CFTC NOTED THAT THE BANK'S SUBSTANTIAL COOPERATION AND REMEDIATION ARE RECOGNIZED IN THE FORM OF A REDUCED CIVIL MONETARY PENALTY.

Sanction: Civil and Administrative Penalt(ies) /Fine(s)

How it ended: Settled

Detail: N/A

Summary: SEE RESPONSE TO QUESTION 7. ALSO SEE: HTTPS://WWW.CFTC.GOV/PRESSROOM/PRESSRELEASES/8581-22 No Information Filed

Resolved: Sep 6, 2022

Another 1 record concern NATIXIS (1), which reports the details on its own Form ADV.

Filings

25 filings to the SEC since October 2021: 25 other. The latest 20:

  1. Aug 14, 202613F-HR EDGAR
  2. Aug 6, 2026N-PX EDGAR
  3. May 14, 202613F-HR EDGAR
  4. Feb 12, 202613F-HR EDGAR
  5. Dec 23, 202540-APP/A LOOMIS SAYLES CREDIT INCOME OPPORTUNITIES FUND EDGAR
  6. Nov 13, 202513F-HR EDGAR
  7. Aug 13, 202513F-HR EDGAR
  8. Aug 5, 2025N-PX EDGAR
  9. May 14, 202513F-HR EDGAR
  10. Feb 12, 202513F-HR EDGAR
  11. Nov 13, 202413F-HR EDGAR
  12. Aug 26, 2024N-PX EDGAR
  13. Aug 13, 202413F-HR EDGAR
  14. May 14, 202413F-HR EDGAR
  15. Feb 13, 202413F-HR EDGAR
  16. Nov 9, 202313F-HR EDGAR
  17. Aug 11, 202313F-HR EDGAR
  18. May 15, 202313F-HR/A EDGAR
  19. May 11, 202313F-HR EDGAR
  20. Feb 10, 202313F-HR EDGAR

The 25 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Stakes it holds

LOOMIS SAYLES & CO L P has told the SEC it owns more than 5% of 7 companies, latest first (Schedules 13D and 13G).

Sources

The numbers on this page point here. Each one links to the record it came from.

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