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Edenbrook Capital, LLC — 13F Holdings & Portfolio

CIK 1666682 · latest 13F-HR filed 2026-08-13

Backtest portfolio

Edenbrook Capital, LLC manages $496.1M in 13F-reported U.S. long-equity assets across 34 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are FEIM (21.43%), MGNI (11.56%), CGNT (10.85%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 2 new positions and exited 0; 3 existing positions 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.

Loading holdings…
AUM
$496.1M

Long-equity book

Holdings
34

Distinct positions

Period
2026-06-30

Filed 2026-08-13

Q/Q Activity
+2 / −0 / ↑3 / ↓0

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26
FEIM43.5% · 0%MGNI23.6% · +27%CGNT22.3% · +4%MCHX8.3% · 0%DV1.3% · newTHRM1.1% · new

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 30, 2026.

Assets Under Management
$278.3M
Discretionary
$278.3M
Employees
4
Accounts
2
Address
116 RADIO CIRCLE
SUITE 202
MOUNT KISCO, NY 10549
Phone
(914) 239-3117
Name Title / Status Ownership Type
BROLIN, JONATHAN, BARRY ControlMANAGING MEMBER
since Nov 2011
75% or moreIndividual
GARUFI, MEGAN, MARY ControlCHIEF COMPLIANCE OFFICER; CHIEF OPERATING OFFICER
since Mar 2016
Less than 5%Individual
Ownership & leadership changes · 1 filing with changes since Mar 29, 2016

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.

Jun 16, 2020 filing
  • ChangedGARUFI, MEGAN, MARY · title CHIEF OPERATING OFFICER → CHIEF COMPLIANCE OFFICER; CHIEF OPERATING OFFICER
Mar 29, 2016 filing (earliest on record)
  • ListedBROLIN, JONATHAN, BARRY · MANAGING MEMBER · 75% or more · control person
  • ListedGARUFI, MEGAN, MARY · CHIEF OPERATING 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.

Top Adds (vs prior quarter)

Show all 3 →

Top Trims

  • No decreased positions.
Show all 0 →

New Positions

Show all 2 →

Exited Positions

  • No exits this quarter.
Show all 0 →

Edenbrook 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 FREQUENCY ELECTRS INC FEIM 358010106 $106.3M 21.43% 1,602,306 SH
2 MAGNITE INC MGNI 55955D100 $57.3M 11.56% 3,020,543 SH
3 COGNYTE SOFTWARE LTD CGNT M25133105 $53.8M 10.85% 6,128,521 SH
4 STATE STR SPDR S&P 500 ETF T Put SPY 78462F103 $50.8M 10.24% 68,000 SH
5 INVESCO QQQ TR Put QQQ 46090E103 $37.6M 7.57% 51,000 SH
6 ISHARES TR Put IWM 464287655 $25.5M 5.15% 85,000 SH
7 MARCHEX INC MCHX 56624R108 $21.3M 4.30% 13,239,567 SH
8 FREQUENCY ELECTRS INC FEIM 358010106 $18.0M 3.63% 271,504 SH
9 ISHARES TR Put HYG 464288513 $13.5M 2.73% 170,000 SH
10 ISHARES TR Put IEF 464287440 $12.0M 2.42% 127,500 SH
11 ISHARES TR Put TLT 464287432 $11.0M 2.21% 127,500 SH
12 MAGNITE INC MGNI 55955D100 $10.2M 2.05% 535,072 SH
13 COGNYTE SOFTWARE LTD CGNT M25133105 $9.9M 1.99% 1,126,703 SH
14 STATE STR SPDR S&P 500 ETF T Put SPY 78462F103 $9.0M 1.81% 12,000 SH
15 SELECT SECTOR SPDR TR Put XLK 81369Y803 $8.1M 1.63% 42,500 SH
16 ISHARES TR Put EEM 464287234 $7.0M 1.41% 102,000 SH
17 INVESCO QQQ TR Put QQQ 46090E103 $6.6M 1.34% 9,000 SH
18 SPDR INDEX SHS FDS Put FEZ 78463X202 $5.8M 1.18% 85,000 SH
19 SELECT SECTOR SPDR TR Call XLE 81369Y506 $4.5M 0.91% 85,000 SH
20 ISHARES TR Put IWM 464287655 $4.5M 0.91% 15,000 SH
21 DOUBLEVERIFY HLDGS INC DV 25862V105 $3.2M 0.64% 291,717 SH
22 GENTHERM INC THRM 37253A103 $2.8M 0.56% 81,225 SH
23 ISHARES TR Put FXI 464287184 $2.7M 0.54% 85,000 SH
24 ISHARES TR Put HYG 464288513 $2.4M 0.48% 30,000 SH
25 MARCHEX INC MCHX 56624R108 $2.3M 0.46% 1,424,813 SH
26 ISHARES TR Put IEF 464287440 $2.1M 0.43% 22,500 SH
27 ISHARES TR Put TLT 464287432 $1.9M 0.39% 22,500 SH
28 SELECT SECTOR SPDR TR Put XLK 81369Y803 $1.4M 0.29% 7,500 SH
29 ISHARES TR Put EEM 464287234 $1.2M 0.25% 18,000 SH
30 SPDR INDEX SHS FDS Put FEZ 78463X202 $1.0M 0.21% 15,000 SH
31 SELECT SECTOR SPDR TR Call XLE 81369Y506 $796.6K 0.16% 15,000 SH
32 DOUBLEVERIFY HLDGS INC DV 25862V105 $552.9K 0.11% 51,009 SH
33 GENTHERM INC THRM 37253A103 $484.7K 0.10% 14,211 SH
34 ISHARES TR Put FXI 464287184 $473.9K 0.10% 15,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-13 $496.1M 34 0000919574-26-005083
2026-03-31 2026-05-14 $321.1M 28 0000919574-26-003090
2025-12-31 2026-02-13 $536.3M 30 0000919574-26-000926
2025-09-30 2025-11-13 $585.8M 38 0000919574-25-006730
Filer Information
Address
116 RADIO CIRCLE
SUITE 202
MT. KISCO, NY 10549
Phone
(914) 239-3117
Filing Manager
Edenbrook Capital, LLC
Mt. Kisco, NY
Signatory
Megan Garufi
CCO