Marnell Management LLC — 13F Holdings & Portfolio

CIK 1852314 · latest 13F-HR filed 2026-08-13

Marnell Management LLC manages $260.4M in 13F-reported U.S. long-equity assets across 69 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are QQQ (22.63%), SBLK (4.95%), CNR (3.96%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 6 new positions and exited 5; 42 existing positions rose in reported value and 14 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.

AUM

$260.4M

Long-equity book

Holdings

Distinct positions

Period

2026-06-30

Filed 2026-08-13

Q/Q Activity

+6 / −5 / ↑42 / ↓14

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26

SBLK6.5% · +20%CNR5.2% · +74%DHT4.6% · +618%WULF4.1% · -53%TRMD3.5% · +6%TDW3.3% · +79%HCC3.3% · +42%VNO3.1% · +10%GTX3.0% · -10%FCNCA3.0% · +13%DEI3.0% · +14%JBGS2.8% · -16%TLN2.8% · +10%COMP2.7% · +56%ECO2.5% · +81%NMM2.4% · +17%ALX2.4% · +7%CMBT2.2% · +121%SHW2.2% · +35%BORR1.9% · new NXRT1.9% · -3%RIG1.8% · +118%ECHO1.8% · new EXP1.7% · +26%ASC1.7% · -21%CENX1.7% · +58%HSHP1.5% · +32%TNK1.5% · +88%FRO1.4% · +37%LEN1.2% · +43%INSW1.2% · +30%FBIN1.2% · -8%NVGS0.9% · +99%STNG0.9% · -6%METC0.8% · +4%HPP0.8% · -14%MLM0.8% · +78%GLD0.8% · 0%HUT0.8% · -24%CORZ0.8% · -65%GLXY0.8% · new VAL0.7% · +12%VST0.7% · new AMR0.7% · +154%BTU0.6% · +272%KKR0.6% · +27%CIFR0.6% · -77%NVR0.6% · new SHIP0.5% · +99%GNK0.5% · -56%BLDR0.5% · -48%QXO0.5% · +37%OPI0.4% · new MT0.4% · -5%FRMI0.3% · new OC0.3% · 0%WLK0.3% · +95%NBIS0.2% · -94%WH0.2% · 0%CLF0.2% · 0%

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

3 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 = 39.7%

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

Firm Profile & Key People

Address

30445 NORTHWESTERN HIGHWAY
SUITE 235
FARMINGTON HILLS, MI 48334

Phone

(248) 579-4531

Website

MARNELLMANAGEMENT.COM

Name	Title / Status	Ownership	Type
Kvasnicka, Ann, Crilly Control	CHIEF COMPLIANCE OFFICER & DIRECTOR OF OPERATIONS	Less than 5%	Individual
ROSENBERG, STEVAN, RAFI Control	MANAGING MEMBER	75% or more	Individual
ROSENBERG, HEATHER, PAMELA	MEMBER	10–25%	Individual

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)

DHT HOLDINGS INC$7.6M +549.9%
COMPASS INC$3.2M +162.7%
ECHOSTAR CORP$3.0M +519.8%
STAR BULK CARRIERS CORP.$3.0M +30.3%
GARRETT MOTION INC$2.6M +79.5%

Show all 42 →

Top Trims

NEBIUS GROUP N.V.-$2.0M -83.2%
CLEANSPARK INC-$1.9M -89.0%
TERAWULF INC-$1.9M -19.0%
CIPHER DIGITAL INC-$1.5M -55.9%
ARDMORE SHIPPING CORP-$1.3M -27.5%

Show all 14 →

New Positions

Show all 6 →

Exited Positions

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#	Issuer	Symbol	CUSIP	Value	Δ

Marnell Management 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	INVESCO QQQ TR Put	QQQ	46090E103	$58.9M	22.63%	80,000	SH
2	STAR BULK CARRIERS CORP.	SBLK	Y8162K204	$12.9M	4.95%	515,698	SH
3	CORE NATURAL RESOURCES INC	CNR	218937100	$10.3M	3.96%	128,778	SH
4	DHT HOLDINGS INC	DHT	Y2065G121	$9.0M	3.44%	541,871	SH
5	TERAWULF INC	WULF	88080T104	$8.0M	3.08%	324,991	SH
6	TORM PLC	TRMD	G89479102	$6.9M	2.63%	262,876	SH
7	TIDEWATER INC NEW	TDW	88642R109	$6.6M	2.52%	98,490	SH
8	WARRIOR MET COAL INC	HCC	93627C101	$6.5M	2.48%	79,511	SH
9	VORNADO RLTY TR	VNO	929042109	$6.1M	2.36%	156,292	SH
10	GARRETT MOTION INC	GTX	366505105	$5.9M	2.28%	163,713	SH
11	FIRST CTZNS BANCSHARES INC D	FCNCA	31946M103	$5.9M	2.26%	2,829	SH
12	DOUGLAS EMMETT INC	DEI	25960P109	$5.9M	2.25%	497,133	SH
13	JBG SMITH PPTYS	JBGS	46590V100	$5.6M	2.15%	381,619	SH
14	TALEN ENERGY CORP	TLN	87422Q109	$5.6M	2.15%	14,551	SH
15	COMPASS INC	COMP	20464U100	$5.2M	2.00%	423,302	SH
16	OKEANIS ECO TANKERS COR	ECO	Y64177101	$4.8M	1.85%	96,294	SH
17	NAVIOS MARITIME PARTNERS LP	NMM	Y62267409	$4.7M	1.82%	67,593	SH
18	ALEXANDERS INC	ALX	014752109	$4.7M	1.80%	16,991	SH
19	CMB.TECH NV	CMBT	B38564108	$4.4M	1.67%	311,109	SH
20	SHERWIN WILLIAMS CO	SHW	824348106	$4.3M	1.67%	12,593	SH
21	BORR DRILLING LTD	BORR	G1466R173	$3.8M	1.46%	922,914	SH
22	NEXPOINT RESIDENTIAL TR INC	NXRT	65341D102	$3.7M	1.41%	131,406	SH
23	TRANSOCEAN LTD	RIG	H8817H100	$3.6M	1.39%	740,270	SH
24	ECHOSTAR CORP	ECHO	278768106	$3.6M	1.38%	35,359	SH
25	EAGLE MATLS INC	EXP	26969P108	$3.4M	1.30%	15,039	SH
26	ARDMORE SHIPPING CORP	ASC	Y0207T100	$3.3M	1.27%	236,122	SH
27	CENTURY ALUM CO	CENX	156431108	$3.3M	1.26%	71,516	SH
28	HIMALAYA SHIPPING LTD	HSHP	G4660A103	$2.9M	1.11%	217,162	SH
29	TEEKAY TANKERS LTD	TNK	G8726X106	$2.9M	1.11%	44,391	SH
30	FRONTLINE PLC	FRO	M46528101	$2.8M	1.08%	81,081	SH
31	LENNAR CORP	LEN	526057104	$2.5M	0.94%	27,100	SH
32	INTERNATIONAL SEAWAYS INC	INSW	Y41053102	$2.4M	0.94%	31,939	SH
33	FORTUNE BRANDS INNOVATIONS I	FBIN	34964C106	$2.4M	0.94%	44,500	SH
34	NAVIGATOR HLDGS LTD	NVGS	Y62132108	$1.9M	0.71%	99,545	SH
35	BORGWARNER INC Call	BWA	099724106	$1.8M	0.71%	27,800	SH
36	SCORPIO TANKERS INC	STNG	Y7542C130	$1.7M	0.66%	24,726	SH
37	RAMACO RES INC	METC	75134P600	$1.6M	0.62%	122,165	SH
38	HUDSON PACIFIC PROPERTIES IN	HPP	444097406	$1.6M	0.60%	102,186	SH
39	MARTIN MARIETTA MATLS INC	MLM	573284106	$1.5M	0.59%	2,651	SH
40	ECHOSTAR CORP Call	ECHO	278768106	$1.5M	0.58%	15,000	SH
41	SPDR GOLD TR	GLD	78463V107	$1.5M	0.58%	4,121	SH
42	HUT 8 CORP	HUT	44812J104	$1.5M	0.58%	13,084	SH
43	CORE SCIENTIFIC INC NEW	CORZ	21874A106	$1.5M	0.58%	58,944	SH
44	GALAXY DIGITAL INC.	GLXY	36317J209	$1.5M	0.57%	54,342	SH
45	HAFNIA LTD Call	HAFN	Y2990R101	$1.4M	0.55%	214,200	SH
46	VALARIS LTD	VAL	G9460G101	$1.4M	0.53%	19,075	SH
47	VISTRA CORP	VST	92840M102	$1.4M	0.52%	8,542	SH
48	ALPHA METALLURGICAL RESOUR I	AMR	020764106	$1.3M	0.50%	7,817	SH
49	PEABODY ENGR CORP	BTU	704551100	$1.2M	0.47%	53,212	SH
50	KKR & CO INC	KKR	48251W104	$1.2M	0.46%	13,019	SH