Form D · Hedge Fund

Diameter Onshore Fund LP

New York, NY · CIK 0001715020

Offering snapshot reported Nov 14, 2025 · SEC filing

Reported sold: $2.13B
Investors reported: 269
Minimum accepted: $0
First sale: Sep 1, 2017

Fundraising history

Reported sold

Dates are filing dates, not cash receipt dates. Decreases are reported revisions, not evidence of withdrawals. Separate offering histories are not added together.

What changed?

Latest filing versus its linked predecessor, where available.

Reported sold$2,043,701,386 → $2,131,696,387
Reported investors260 → 269

Filing history

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Filed	Filing type	Reported sold	Change vs linked filing	Investors	Source
Nov 14, 2025	Amendment	$2,131,696,387	$87,995,001vs Nov 15, 2024	269	SEC filing
Nov 15, 2024	Amendment	$2,043,701,386	$120,522,993vs Nov 16, 2023	260	SEC filing
Nov 16, 2023	Amendment	$1,923,178,393	$39,402,467vs Nov 16, 2022	248	SEC filing
Nov 16, 2022	Amendment	$1,883,775,926	$150,105,386vs Nov 16, 2021	243	SEC filing
Nov 16, 2021	Amendment	$1,733,670,540	$0vs Oct 26, 2021	203	SEC filing
Oct 26, 2021	Amendment	$1,733,670,540	$254,168,888vs Oct 26, 2020	203	SEC filing
Oct 26, 2020	Amendment	$1,479,501,652	$485,403,711vs Sep 19, 2019	183	SEC filing
Sep 19, 2019	Amendment	$994,097,941	$293,019,250vs Aug 29, 2018	109	SEC filing
Aug 29, 2018	Amendment	$701,078,691	No comparison	82	SEC filing
Aug 29, 2017	Amendment	Yet to sell	No comparison	0	SEC filing
Aug 28, 2017	Initial	Yet to sell	No comparison	0	SEC filing

Offering details

Securities: Equity, Pooled investment fund
Exemptions: 06b, 3C, 3C.7
Duration over one year: Yes
Business combination: No

Sales commissions: $0 (estimated)
Finders' fees: $0 (estimated)
Form D file number: 021-293587

Source: Form D, filed Nov 14, 2025. Minimum accepted may differ from a standard advertised minimum.

Fund connections

Each card uses that adviser's latest imported filing. Filing dates can differ; these disclosures do not confirm a current relationship.

Matched by reported Form D file number

DIAMETER MASTER FUND LP

Investment adviser: DIAMETER CAPITAL PARTNERS LP

Gross asset value: $13B
Beneficial owners: 441
ADV minimum commitment: $5M

Reported in Form ADV on Aug 27, 2026. Fund assets and beneficial owners measure different things from Form D sales and investors.

Service providers

Fund administrator HEDGESERV (CAYMAN) LTD. GEORGETOWN, GRAND CAYMAN, Cayman Islands Investor statements: Yes (provided to all investors) Related to adviser: No Other funds reporting this name →

Auditor ERNST AND YOUNG LTD. NEW YORK, New York, United States Other funds reporting this name →

Custodian BARCLAYS CAPITAL INC. NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

Custodian BNP PARIBAS SECURITIES CORP. NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

Custodian GOLDMAN SACHS & CO. LLC NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

Custodian J.P. MORGAN CLEARING CORP. NEW YORK, New York, United States Related to adviser: No Other funds reporting this name →

See filing for more → Showing the first 6 providers by role and name. IAPD may show a newer filing.

Provider details

Annual audit: Yes
Prime brokers: Yes
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

ERNST AND YOUNG LTD.
PCAOB 42

BARCLAYS CAPITAL INC.
SEC 8-41342

BNP PARIBAS SECURITIES CORP.
SEC 8-32682

GOLDMAN SACHS & CO. LLC
SEC 8-129

J.P. MORGAN CLEARING CORP.
SEC 8-43724

Fund asset history · 5 annual observations

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Fiscal year	Gross assets	Beneficial owners	ADV filed
2021	$9,895,265,809	366	Mar 31, 2022
2022	$9,932,765,148	419	Mar 31, 2023
2023	$10,061,281,763	419	Mar 29, 2024
2024	$12,125,634,778	433	Mar 31, 2025
2025	$13,007,490,246	441	Mar 31, 2026

Filing source

Form ADV 2127415 · Aug 27, 2026 · Schedule D 7.B.(1), fund 805-5034426706

Reported by DIAMETER CAPITAL PARTNERS LP (CRD 289307).

Other-Than Anual Amendment For Registered Adviser.

Official IAPD profile (latest public filing). Historical values on this page come from the SEC/IAPD filing archive; the public profile may show a newer filing.

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
Name	Reported role
Diameter Associates Llc	Executive
Diameter Capital Partners Lp	Executive
Scott Goodwin	Executive
Jonathan Lewinsohn	Executive

Issuer details

Industry: Pooled Investment Fund (See others in industry)

Address:

50 Hudson Yards Suite 6600 A
New York, NY, 10001