Helix Partners Management LP — 13F Holdings & Portfolio

CIK 1995612 · latest 13F-HR filed 2026-08-13

Helix Partners Management LP manages $744.1M in 13F-reported U.S. long-equity assets across 15 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SPY (32.11%), CORZ (15.65%), OPI (12.68%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions and exited 5; 4 existing positions rose in reported value and 1 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.

Loading holdings…
AUM
$744.1M

Long-equity book

Holdings
15

Distinct positions

Period
2026-06-30

Filed 2026-08-13

Q/Q Activity
+4 / −5 / ↑4 / ↓1

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26

Box 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 value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated 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 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 100%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 26, 2026.

Assets Under Management
$1.83B
Discretionary
$1.83B
Employees
14
Accounts
2
Address
545 MADISON AVENUE
8TH FLOOR
NEW YORK, NY 10022
Phone
(212) 379-4949
Name Title / Status Ownership Type
FOUR STARS INVESTMENT TRUST ControlLIMITED PARTNER
since Feb 2024
25–50%Domestic Entity
HELIX PARTNERS MANAGEMENT GP LLC ControlGENERAL PARTNER
since Dec 2022
Less than 5%Domestic Entity
HELLER, JONATHAN, MICHAEL ControlCEO, LIMITED PARTNER
since Dec 2022
50–75%Individual
RUBIN, SAMUEL, JED ControlCCO
since Jul 2023
Less than 5%Individual
Tuminello, Matt, M. ControlCFO
since Oct 2024
Less than 5%Individual
HELLER, JONATHAN, MICHAEL Control
Indirect owner via HELIX PARTNERS MANAGEMENT GP LLC
MANAGING MEMBER
since Dec 2022
75% or moreIndividual
Heller, Laura, Miriam
Indirect owner via FOUR STARS INVESTMENT TRUST
TRUSTEE
since Feb 2024
General partner, trustee or managerIndividual
Ownership & leadership changes · 5 filings with changes since Nov 15, 2023

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.

Mar 26, 2026 filing
  • AddedTuminello, Matt, M. · CFO · Less than 5% · control person
Mar 17, 2025 filing
  • ChangedFOUR STARS INVESTMENT TRUST · title OWNER → LIMITED PARTNER
  • ChangedHELIX PARTNERS MANAGEMENT GP LLC · title GENERAL PARTNER OF HELIX PARTNERS MANAGEMENT LP → GENERAL PARTNER
May 1, 2024 filing
  • AddedHeller, Laura, Miriam · TRUSTEE · General partner, trustee or manager · indirect via FOUR STARS INVESTMENT TRUST
Apr 30, 2024 filing
  • AddedFOUR STARS INVESTMENT TRUST · OWNER · 25–50% · control person
  • ChangedHELLER, JONATHAN, MICHAEL · ownership 75% or more → 50–75%
Jan 5, 2024 filing
  • AddedHELIX PARTNERS MANAGEMENT GP LLC · GENERAL PARTNER OF HELIX PARTNERS MANAGEMENT LP · Less than 5% · control person
  • AddedHELLER, JONATHAN, MICHAEL · MANAGING MEMBER · 75% or more · indirect via HELIX PARTNERS MANAGEMENT GP LLC · control person
  • ChangedHELLER, JONATHAN, MICHAEL · title CEO → CEO, LIMITED PARTNER
Nov 15, 2023 filing (earliest on record)
  • ListedHELLER, JONATHAN, MICHAEL · CEO · 75% or more · control person
  • ListedRUBIN, SAMUEL, JED · CCO · 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.

Helix Partners Management LP 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 STATE STR SPDR S&P 500 ETF T Put SPY 78462F103 $239.0M 32.11% 320,000 SH
2 CORE SCIENTIFIC INC NEW CORZ 21874A106 $116.4M 15.65% 4,550,000 SH
3 OFFICE PPTYS INCOME TR OPI 67623C307 $94.4M 12.68% 5,551,715 SH
4 SERVICE PPTYS TR SVC 81761L102 $92.4M 12.42% 54,700,000 SH
5 CORE SCIENTIFIC INC NEW Put CORZ 21874A106 $64.0M 8.60% 2,500,000 SH
6 ISHARES TR Put IWM 464287655 $34.6M 4.64% 115,000 SH
7 GLOBAL NET LEASE INC GNL 379378201 $27.0M 3.63% 3,021,832 SH
8 CORE SCIENTIFIC INC NEW Call CORZ 21874A106 $25.6M 3.44% 1,000,000 SH
9 CAPITAL ONE FINL CORP COF 14040H105 $15.5M 2.08% 77,100 SH
10 ECHOSTAR CORP ECHO 278768106 $15.1M 2.04% 149,258 SH
11 ECHOSTAR CORP Put ECHO 278768106 $10.2M 1.36% 100,000 SH
12 WARNER BROS DISCOVERY INC WBD 934423104 $4.0M 0.54% 150,000 SH
13 OPTIMUM COMMUNICATIONS INC OPTU 02156K103 $3.7M 0.49% 2,520,000 SH
14 COMMUNITY HEALTH SYS INC NEW CYH 203668108 $1.3M 0.18% 400,000 SH
15 M3BRIGADE ACQUISITION V CORP VLOS G63212107 $1000.0K 0.13% 300,300 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-13 $744.1M 15 0001995612-26-000007
2026-03-31 2026-05-14 $373.8M 13 0001995612-26-000005
2025-12-31 2026-02-13 $297.4M 12 0001995612-26-000003
2025-09-30 2025-11-13 $238.8M 9 0001995612-25-000009
Filer Information
Address
545 MADISON AVENUE
8TH FLOOR
NEW YORK, NY 10022
Phone
(212) 708-4520
Filing Manager
Helix Partners Management LP
NEW YORK, NY
Signatory
Jed Rubin
Chief Compliance Officer