Magnitude Capital, LLC — 13F Holdings & Portfolio
CIK 1556278 · latest 13F-HR filed 2026-08-14
Magnitude Capital, LLC manages $512.4M in 13F-reported U.S. long-equity assets across 1 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are HG (100.00%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions and exited 0; 1 existing position rose in reported value and 0 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 100%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Jul 9, 2026.
56TH FLOOR
NEW YORK, NY 10166
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| APPEN, BENJAMIN, SHERIDAN Control | CHIEF EXECUTIVE OFFICER, MANAGING MEMBER since Aug 2003 | 25–50% | Individual |
| BOSTIC, HENRY, HAWES Control | CHIEF INVESTMENT OFFICER, MEMBER since Jan 2025 | 5–10% | Individual |
| COHEN, MATTHEW, SCOTT Control | CHIEF FINANCIAL OFFICER, MEMBER since Jan 2025 | Less than 5% | Individual |
| D'AMBROSIO, NICHOLAS, MARTIN Control | CHIEF COMPLIANCE OFFICER since Jan 2025 | Less than 5% | Individual |
| DAYKIN, GRAEME, EDWARD Control | PRESIDENT, MEMBER since Jan 2017 | 5–10% | Individual |
| HALL, JAMES, MICHAEL Control | MANAGING MEMBER since Aug 2003 | 10–25% | Individual |
| LODEWICK, RICHARD, OSBORNE Control | MEMBER since Jan 2016 | Less than 5% | Individual |
| Messinger, Andrew, Howard Control | GENERAL COUNSEL since Jan 2016 | Less than 5% | Individual |
| YUAN, ELISHEVA, BELLA Control | CHIEF OPERATING OFFICER, MEMBER since Oct 2021 | Less than 5% | Individual |
| APPEN-CHANG 2012 TRUST | MEMBER since Dec 2020 | 5–10% | Domestic Entity |
| CHANG, DEREK, NMN | TRUSTEE since Dec 2020 | 5–10% | Individual |
| CHANG, LESLIE, NMN | TRUSTEE since Dec 2020 | 5–10% | Individual |
| JJHF DELAWARE TRUST HOLDINGS LLC | MEMBER since Sep 2024 | 10–25% | Domestic Entity |
| JLHF 2020 DELAWARE TRUST HOLDINGS LLC | MEMBER since Jan 2025 | 5–10% | Domestic Entity |
| BRYN MAWR TRUST COMPANY OF DELAWARE Control Indirect owner via JJHF DELAWARE TRUST | TRUSTEE since Sep 2024 | General partner, trustee or manager | Domestic Entity |
| BRYN MAWR TRUST COMPANY OF DELAWARE Control Indirect owner via JLHF 2020 DELAWARE TRUST | TRUSTEE since Jan 2025 | General partner, trustee or manager | Domestic Entity |
| HALL, JAMES, MICHAEL Control Indirect owner via JJHF DELAWARE TRUST HOLDINGS LLC | ELECTED MANAGER since Sep 2024 | General partner, trustee or manager | Individual |
| HALL, JAMES, MICHAEL Control Indirect owner via JLHF 2020 DELAWARE TRUST HOLDINGS LLC | ELECTED MANAGER since Jan 2025 | General partner, trustee or manager | Individual |
| JJHF DELAWARE TRUST Control Indirect owner via JJHF DELAWARE TRUST HOLDINGS LLC | MEMBER since Sep 2024 | 75% or more | Domestic Entity |
| JLHF 2020 DELAWARE TRUST Control Indirect owner via JLHF 2020 DELAWARE TRUST HOLDINGS LLC | MEMBER since Jan 2025 | 75% or more | Domestic Entity |
Ownership & leadership changes · 16 filings with changes since Mar 30, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- AddedBRYN MAWR TRUST COMPANY OF DELAWARE · TRUSTEE · General partner, trustee or manager · indirect via JLHF 2020 DELAWARE TRUST · control person
- AddedD'AMBROSIO, NICHOLAS, MARTIN · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- AddedHALL, JAMES, MICHAEL · ELECTED MANAGER · General partner, trustee or manager · indirect via JLHF 2020 DELAWARE TRUST HOLDINGS LLC · control person
- AddedJLHF 2020 DELAWARE TRUST · MEMBER · 75% or more · indirect via JLHF 2020 DELAWARE TRUST HOLDINGS LLC · control person
- AddedJLHF 2020 DELAWARE TRUST HOLDINGS LLC · MEMBER · 5–10%
- ChangedAPPEN-CHANG 2012 TRUST · title TRUST → MEMBER
- ChangedBOSTIC, HENRY, HAWES · title MEMBER → CHIEF INVESTMENT OFFICER, MEMBER
- ChangedCOHEN, MATTHEW, SCOTT · title CHIEF FINANCIAL OFFICER, MANAGING DIRECTOR → CHIEF FINANCIAL OFFICER, MEMBER
- ChangedJJHF DELAWARE TRUST · indirect via JJHF DELAWARE TRUST HOLDINGS LLC: ownership 25–50% → 75% or more
- ChangedMessinger, Andrew, Howard · title GENERAL COUNSEL & CHIEF COMPLIANCE OFFICER, MANAGING DIRECTOR → GENERAL COUNSEL
- No longer listedHall, Robert, D · TRUSTEE · 10–25% · listed since Dec 2020
- No longer listedJJHF TRUST · TRUST · 10–25% · listed since Dec 2020
- AddedBRYN MAWR TRUST COMPANY OF DELAWARE · TRUSTEE · General partner, trustee or manager · indirect via JJHF DELAWARE TRUST · control person
- AddedHALL, JAMES, MICHAEL · ELECTED MANAGER · General partner, trustee or manager · indirect via JJHF DELAWARE TRUST HOLDINGS LLC · control person
- AddedJJHF DELAWARE TRUST · MEMBER · 25–50% · indirect via JJHF DELAWARE TRUST HOLDINGS LLC · control person
- AddedJJHF DELAWARE TRUST HOLDINGS LLC · MEMBER · 10–25%
- ChangedDAYKIN, GRAEME, EDWARD · ownership Less than 5% → 5–10%
- No longer listedPATEL, BIRAL, ATUL · CHIEF FINANCIAL OFFICER, MANAGING DIRECTOR · Less than 5% · control person · listed since Jan 2019
- AddedCOHEN, MATTHEW, SCOTT · CHIEF FINANCIAL OFFICER, MANAGING DIRECTOR · Less than 5% · control person
- ChangedYUAN, ELISHEVA, BELLA · title CHIEF ADMINISTRATIVE OFFICER, MEMBER → CHIEF OPERATING OFFICER, MEMBER
- No longer listedSTILES, ERIC, DUTTON · MEMBER · 5–10% · control person · listed since Jan 2011
- AddedAPPEN-CHANG 2012 TRUST · TRUST · 5–10%
- AddedCHANG, DEREK, NMN · TRUSTEE · 5–10%
- AddedCHANG, LESLIE, NMN · TRUSTEE · 5–10%
- AddedHall, Robert, D · TRUSTEE · 10–25%
- AddedJJHF TRUST · TRUST · 10–25%
- ChangedHALL, JAMES, MICHAEL · ownership 25–50% → 10–25%
- ChangedBOSTIC, HENRY, HAWES · ownership Less than 5% → 5–10%
- ChangedSTILES, ERIC, DUTTON · ownership Less than 5% → 5–10%
- ChangedBOSTIC, HENRY, HAWES · ownership 5–10% → Less than 5%
- ChangedSTILES, ERIC, DUTTON · ownership 5–10% → Less than 5%
- AddedPATEL, BIRAL, ATUL · CHIEF FINANCIAL OFFICER, MANAGING DIRECTOR · Less than 5% · control person
- AddedYUAN, ELISHEVA, BELLA · CHIEF ADMINISTRATIVE OFFICER, MEMBER · Less than 5% · control person
- ChangedMessinger, Andrew, Howard · title CHIEF COMPLIANCE OFFICER → GENERAL COUNSEL & CHIEF COMPLIANCE OFFICER, MANAGING DIRECTOR
- ChangedAPPEN, BENJAMIN, SHERIDAN · title CHIEF EXECUTIVE OFFICER, MEMBER → CHIEF EXECUTIVE OFFICER, MANAGING MEMBER
- ChangedBOSTIC, HENRY, HAWES · ownership Less than 5% → 5–10%
- ChangedHALL, JAMES, MICHAEL · title MEMBER → MANAGING MEMBER
- ChangedSTILES, ERIC, DUTTON · ownership Less than 5% → 5–10%
Older changes (7 more filings)
- No longer listedMORGAN, CHARLES, MILLEGE · GENERAL COUNSEL, MEMBER · Less than 5% · control person · listed since Apr 2015
- ChangedDAYKIN, GRAEME, EDWARD · title MEMBER → PRESIDENT, MEMBER
- No longer listedWATERHOUSE, RAYMOND, ALBERT · DIRECTOR OF OPERATIONS, CHIEF COMPLIANCE OFFICER · Less than 5% · control person · listed since May 2004
- AddedLODEWICK, RICHARD, OSBORNE · MEMBER · Less than 5% · control person
- AddedMessinger, Andrew, Howard · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ChangedAPPEN, BENJAMIN, SHERIDAN · title CHIEF EXECUTIVE OFFICER, PRESIDENT, MEMBER → CHIEF EXECUTIVE OFFICER, MEMBER
- AddedMORGAN, CHARLES, MILLEGE · GENERAL COUNSEL, MEMBER · Less than 5% · control person
- No longer listedENGLISH, CHRISTOPHER · MEMBER · Less than 5% · control person · listed since Jan 2008
- No longer listedNELSON, STEPHEN, ROBERT · GENERAL COUNSEL, MEMBER · Less than 5% · control person · listed since Apr 2007
- AddedDAYKIN, GRAEME, EDWARD · MEMBER · Less than 5% · control person
- ChangedAPPEN, BENJAMIN, SHERIDAN · title PRESIDENT, MEMBER → CHIEF EXECUTIVE OFFICER, PRESIDENT, MEMBER
- ListedAPPEN, BENJAMIN, SHERIDAN · PRESIDENT, MEMBER · 25–50% · control person
- ListedBOSTIC, HENRY, HAWES · MEMBER · Less than 5% · control person
- ListedENGLISH, CHRISTOPHER · MEMBER · Less than 5% · control person
- ListedHALL, JAMES, MICHAEL · MEMBER · 25–50% · control person
- ListedNELSON, STEPHEN, ROBERT · GENERAL COUNSEL, MEMBER · Less than 5% · control person
- ListedSTILES, ERIC, DUTTON · MEMBER · Less than 5% · control person
- ListedWATERHOUSE, RAYMOND, ALBERT · DIRECTOR OF OPERATIONS, CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Magnitude Capital, LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | HAMILTON INSURANCE GROUP LTD | HG | G42706104 | $512.4M | 100.00% | 15,096,940 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $512.4M | 1 | 0001172661-26-003530 |
| 2026-03-31 | 2026-05-12 | $450.3M | 1 | 0001172661-26-001693 |
| 2025-12-31 | 2026-02-13 | $421.2M | 1 | 0001172661-26-000734 |
| 2025-09-30 | 2025-11-14 | $374.4M | 1 | 0001172661-25-004925 |
56TH FLOOR
NEW YORK, NY 10166