Overbrook Management Corp

Registered adviser

CIK

1269786

Location

NEW YORK, NY

Portfolio Value

Small $643,077,462

Diversification

Diversified

Filing Date

Global Rank

#3,135 / 8,811 ▲ 18 · as of Jun 2026

Top Industry

Semiconductors 29.6%

Period ended 21 days ago

Filed Oct 8, 2026 · 13d

27 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 117884

Roster of Oct 1, 2026

Regulatory AUM

$1,121,106,153

Main clients

Individuals and high net worth (52% of AUM)

Private funds

3 funds · Hedge funds

Focus by fund count, roster of Oct 1, 2026

$195,102,251 gross assets

LEI

5493001I7BXFLHN51S14

Private funds on Schedule D 7.B.(1)

As filed Jul 22, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$1,312,165 gross assets in 2 funds Hedge funds $893,774 (1) Private equity funds $418,391 (1)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$1,121,106,153	Individuals and high net worth (52%)
Dec 2025 to Mar 2026	$1,051,959,375	Individuals and high net worth (58%)
Apr 2025 to Sep 2025	$1,051,959,375	Individuals and high net worth (58%)
Feb 2024 to Mar 2025	$1,228,633,455	Individuals and high net worth (67%)
May 2023 to Jan 2024	$1,069,124,219	Individuals and high net worth (67%)
Apr 2023	$1,069,124,219	Individuals and high net worth (67%)

5 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, the newest measured quarter, never from the firm's own description.

Style

Diversified active

Top 10 weight 57.1%, 22.7 effective positions, active share 57.1% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

Medium turnover

48.2% over the last four quarters (30% to under 100%)

Horizon

Long horizon

Value-weighted holding period 13.3 quarters (12+), a floor since 26.1% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 57.1%; sector active share 23.8% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

53 tracked positions · as of Sep 30, 2026 · Δ vs Jun 30, 2026

Top Position

11.0%

+1.5 pts

Top 5

37.1%

+3.2 pts

Top 10

61.2%

+4.1 pts

HHI

495

Diversified+55

Portfolio Trend

27 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2026

Sector	% Portfolio	Value	Positions
Technology	44.0%	$282,822,222	13
Communication Services	13.3%	$85,335,858	5
Healthcare	12.8%	$82,308,553	6
Consumer Cyclical	11.0%	$70,876,434	5
Industrials	7.1%	$45,609,292	3
Financial Services	5.5%	$35,092,271	5
Unclassified	4.4%	$28,541,315	11
Basic Materials	1.2%	$7,593,678	2
Utilities	0.5%	$2,972,311	1
Energy	0.3%	$1,925,528	2

Last Quarter's Activity

Export CSV

Sep 30, 2026 vs Jun 30, 2026

Added To

Positions the filer increased

14 positions

Ticker	Company	Δ Shares	Shares	Value
MU	Micron Technology Inc	+10,576	24,714	$26,323,128
GLD	Spdr Gold Trust	+9,794	18,218	$6,938,143
AVGO	Broadcom Inc.	+8,919	112,603	$39,545,047
TSM	Taiwan Semiconductor Manufacturing Co Ltd	+7,947	72,053	$32,869,858
PYLD		+7,001	226,546	$5,752,002
JPIE	JPMorgan Income ETF	+3,955	130,215	$5,845,351
NOW	ServiceNow, Inc.	+3,817	39,478	$5,290,446
CRWD	CrowdStrike Holdings, Inc.	+3,056	6,038	$1,598,560
VCIT	VANGUARD INTERMEDIATE-TERM CORPORATE BOND INDEX FUND	+2,286	72,667	$5,690,552
XLE	State Street(R) Energy Select Sector SPDR(R) ETF	+1,284	15,529	$955,033
GEV	GE Vernova Inc.	+954	14,075	$13,378,146
BND	VANGUARD TOTAL BOND MARKET INDEX FUND	+852	27,271	$1,913,060
CAT	Caterpillar Inc	+468	23,655	$19,179,237
VOO	VANGUARD 500 INDEX FUND	+1	569	$398,789
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
AMZN	Amazon Com Inc	−29,337	110,878	$27,625,253
ORLY	O Reilly Automotive Inc	−26,349	376,964	$32,196,495
ARES	Ares Management Corp	−20,507	5,862	$680,988
UBER	Uber Technologies, Inc	−17,344	158,449	$10,855,340
VST	Vistra Corp.	−13,995	21,484	$2,972,311
TMUS	T-Mobile US, Inc.	−11,540	53,580	$8,737,826
DHI	Horton D R Inc /De/	−6,198	77,432	$10,581,082
META	Meta Platforms, Inc.	−5,405	35,178	$25,510,382
NVDA	Nvidia Corp	−5,094	309,939	$70,783,868
AMD	Advanced Micro Devices Inc	−5,027	19,617	$12,000,895
TLG	Touchstone ETF Trust-Touchstone Large Company Growth ETF	−3,984	8,068	$225,717
JPM	Jpmorgan Chase & Co	−3,039	14,590	$4,826,809
HQY	Healthequity, Inc.	−2,409	5,840	$516,606
GOOG	Alphabet Inc.	−2,290	127,895	$43,578,942
CRS	Carpenter Technology Corp	−1,686	33,568	$13,051,909
BRK-B	Berkshire Hathaway Inc	−1,458	11,698	$5,825,019
MSFT	Microsoft Corp	−1,319	87,234	$44,742,318
ABBV	AbbVie Inc.	−1,311	42,968	$11,239,999
AAPL	Apple Inc.	−1,101	84,471	$28,130,532
V	Visa Inc.	−694	63,227	$22,719,357
XOM	ExxonMobil Holdings Corp	−340	3,464	$563,766
MCK	Mckesson Corp	−204	42,106	$35,950,523
APP	AppLovin Corp	−51	12,060	$3,502,585
GLW	Corning Inc /Ny	−51	27,060	$4,160,745
MCD	Mcdonalds Corp	−9	1,100	$254,034
No positions match the current search.

New Positions

Positions the filer opened this quarter

6 positions

Ticker	Company	Shares	Value
STX	Seagate Technology Holdings plc	6,823	$6,293,125
MP	MP Materials Corp. / DE	94,076	$4,448,854
USAR	USA Rare Earth, Inc.	223,354	$3,144,824
BKUI	BNY Mellon Ultra Short Income ETF	10,066	$499,424
XBI	State Street(R) SPDR(R) S&P(R) Biotech ETF	2,050	$323,244
FIVE	Five Below, Inc	1,000	$219,570
No positions match the current search.

Sold Out

Positions the filer fully exited

21 positions

Ticker	Company	Shares	Value
NFLX	Netflix Inc	164,140	$11,719,596
HWM	Howmet Aerospace Inc.	22,178	$5,962,777
COHR	Coherent Corp.	8,284	$3,267,789
RPRX	Royalty Pharma plc	38,208	$2,142,322
LRCX	Lam Research Corp	1,711	$741,427
MA	Mastercard Inc	1,282	$658,435
HOOD	Robinhood Markets, Inc.	5,210	$522,458
EQIX	Equinix Inc	446	$464,905
MDLN	Medline Inc.	10,567	$416,762
NU	Nu Holdings Ltd.	29,061	$388,254
CMG	Chipotle Mexican Grill Inc	11,231	$381,854
ISRG	Intuitive Surgical Inc	903	$359,105
JNJ	Johnson & Johnson	1,407	$357,335
LIN	Linde PLC	680	$352,879
SNDK	Sandisk Corp	155	$352,428
COST	Costco Wholesale Corp /New	366	$342,382
DELL	Dell Technologies Inc.	717	$309,356
GM	General Motors Co	3,586	$276,408
BKNG	Booking Holdings Inc.	1,500	$267,360
PLTR	Palantir Technologies Inc.	1,933	$225,523
DE	Deere & Co	329	$208,694
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

53 tracked positions · $643,077,462 total · filing declares 53 positions · $643,299,245 · as of Sep 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Energy Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 53 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Reduced	309,939	-5,094	$70,783,868	+12.3%	11.01%
MSFT	Microsoft Corp Technology	Reduced	87,234	-1,319	$44,742,318	+35.5%	6.96%
GOOG	Alphabet Inc. Communication Services	Reduced	127,895	-2,290	$43,578,942	−5.3%	6.78%
AVGO	Broadcom Inc. Technology	Added	112,603	+8,919	$39,545,047	+1.0%	6.15%
MCK	Mckesson Corp Healthcare	Reduced	42,106	-204	$35,950,523	+12.5%	5.59%
LLY	ELI LILLY & Co Healthcare	Reduced	29,359	-7	$33,970,711	−3.6%	5.28%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Added	72,053	+7,947	$32,869,858	+7.4%	5.11%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Reduced	376,964	-26,349	$32,196,495	−13.3%	5.01%
AAPL	Apple Inc. Technology	Reduced	84,471	-1,101	$28,130,532	+13.6%	4.37%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	110,878	-29,337	$27,625,253	−17.3%	4.30%
MU	Micron Technology Inc Technology	Added	24,714	+10,576	$26,323,128	+61.3%	4.09%
META	Meta Platforms, Inc. Communication Services	Reduced	35,178	-5,405	$25,510,382	+11.6%	3.97%
V	Visa Inc. Financial Services	Reduced	63,227	-694	$22,719,357	+3.6%	3.53%
CAT	Caterpillar Inc Industrials	Added	23,655	+468	$19,179,237	−22.3%	2.98%
GEV	GE Vernova Inc. Industrials	Added	14,075	+954	$13,378,146	−13.2%	2.08%
CRS	Carpenter Technology Corp Industrials	Reduced	33,568	-1,686	$13,051,909	−40.0%	2.03%
AMD	Advanced Micro Devices Inc Technology	Reduced	19,617	-5,027	$12,000,895	−16.2%	1.87%
ABBV	AbbVie Inc. Healthcare	Reduced	42,968	-1,311	$11,239,999	+0.9%	1.75%
UBER	Uber Technologies, Inc Technology	Reduced	158,449	-17,344	$10,855,340	−14.4%	1.69%
DHI	Horton D R Inc /De/ Consumer Cyclical	Reduced	77,432	-6,198	$10,581,082	−22.3%	1.65%
TMUS	T-Mobile US, Inc. Communication Services	Reduced	53,580	-11,540	$8,737,826	−20.0%	1.36%
GLD	Spdr Gold Trust	Added	18,218	+9,794	$6,938,143	+123.6%	1.08%
STX	Seagate Technology Holdings plc Technology	NEW	6,823	NEW	$6,293,125	NEW	0.98%
JPIE	JPMorgan Income ETF	Added	130,215	+3,955	$5,845,351	+0.5%	0.91%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	11,698	-1,458	$5,825,019	−11.5%	0.91%
PYLD		Added	226,546	+7,001	$5,752,002	−1.2%	0.89%
VCIT	VANGUARD INTERMEDIATE-TERM CORPORATE BOND INDEX FUND	Added	72,667	+2,286	$5,690,552	−2.2%	0.88%
NOW	ServiceNow, Inc. Technology	Added	39,478	+3,817	$5,290,446	+49.4%	0.82%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	14,590	-3,039	$4,826,809	−16.4%	0.75%
MP	MP Materials Corp. / DE Basic Materials	NEW	94,076	NEW	$4,448,854	NEW	0.69%
GLW	Corning Inc /Ny Technology	Reduced	27,060	-51	$4,160,745	−39.9%	0.65%
GOOGL	Alphabet Inc. Communication Services	Held	11,643	0	$4,006,123	−3.7%	0.62%
APP	AppLovin Corp Communication Services	Reduced	12,060	-51	$3,502,585	−43.9%	0.54%
USAR	USA Rare Earth, Inc. Basic Materials	NEW	223,354	NEW	$3,144,824	NEW	0.49%
VST	Vistra Corp. Utilities	Reduced	21,484	-13,995	$2,972,311	−47.2%	0.46%
BND	VANGUARD TOTAL BOND MARKET INDEX FUND	Added	27,271	+852	$1,913,060	−1.4%	0.30%
CRWD	CrowdStrike Holdings, Inc. Technology	Added	6,038	+3,056	$1,598,560	−29.8%	0.25%
EPD	Enterprise Products Partners L.P. Energy	Held	38,241	0	$1,361,762	−3.1%	0.21%
GAM	General American Investors Co Inc Financial Services	Held	16,395	0	$1,040,098	−0.5%	0.16%
XLE	State Street(R) Energy Select Sector SPDR(R) ETF	Added	15,529	+1,284	$955,033	+26.2%	0.15%
ARES	Ares Management Corp Financial Services	Reduced	5,862	-20,507	$680,988	−76.8%	0.11%
XOM	ExxonMobil Holdings Corp Energy	Reduced	3,464	-340	$563,766	+8.4%	0.09%
HQY	Healthequity, Inc. Healthcare	Reduced	5,840	-2,409	$516,606	−30.7%	0.08%
BKUI	BNY Mellon Ultra Short Income ETF	NEW	10,066	NEW	$499,424	NEW	0.08%
VOO	VANGUARD 500 INDEX FUND	Added	569	+1	$398,789	+2.2%	0.06%
CLDX	Celldex Therapeutics, Inc. Healthcare	Held	11,537	0	$373,914	−12.9%	0.06%
XBI	State Street(R) SPDR(R) S&P(R) Biotech ETF	NEW	2,050	NEW	$323,244	NEW	0.05%
PGEN	Precigen, Inc. Healthcare	Held	30,000	0	$256,800	+50.2%	0.04%
MCD	Mcdonalds Corp Consumer Cyclical	Reduced	1,100	-9	$254,034	−15.3%	0.04%
AOSL	ALPHA & OMEGA SEMICONDUCTOR Ltd Technology	Held	8,304	0	$228,360	−41.9%	0.04%

Showing the top 50 of 53 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.