Top Institutional Investors

GROESBECK INVESTMENT MANAGEMENT CORP /NJ/ — 13F Holdings & Portfolio

CIK 923116 · latest 13F-HR filed 2026-10-26

Backtest portfolio

GROESBECK INVESTMENT MANAGEMENT CORP /NJ/ manages $60.4M in 13F-reported U.S. long-equity assets across 94 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are LRCX (11.25%), AVGO (7.99%), URI (5.98%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 1 new position and exited 7; 29 existing positions rose in reported value and 44 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
$60.4M

Long-equity book

Holdings
94

Distinct positions

Period
2026-09-30

Filed 2026-10-26

Q/Q Activity
+1 / −7 / ↑29 / ↓44

vs 2026-06-30

Portfolio charts

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

Portfolio map

Q3 26
LRCX11.2% · -7%AVGO8.0% · -5%URI6.0% · -0%ANET5.1% · -6%FTNT4.3% · -2%NVDA4.2% · -1%MSFT3.5% · +0%AAPL3.2% · 0%GS3.1% · -2%GOOG2.6% · -2%PANW2.3% · -0%ORLY2.3% · 0%V2.2% · +11%TMO1.9% · +9%GOOGL1.9% · -3%CI1.8% · +6%SHW1.6% · 0%META1.5% · -4%FIVE1.5% · +0%NXST1.5% · -1%ABBV1.4% · 0%TROW1.3% · -1%ESNT1.3% · +23%VRTX1.3% · 0%CFR1.3% · +16%SSNC1.2% · +27%ULTA1.1% · 0%AMGN1.1% · -2%TSCO0.9% · -3%AMZN0.9% · +2%THO0.8% · -1%OZK0.8% · +4%MRK0.8% · -4%EW0.8% · -4%MCK0.7% · +1%ABT0.7% · 0%SNX0.7% · -6%UNH0.6% · 0%MS0.6% · 0%CPRT0.6% · -2%PWR0.6% · 0%IRM0.6% · -8%LHX0.5% · 0%ICE0.5% · -3%BLK0.5% · -5%GWW0.4% · +4%CLS0.4% · +8%CARR0.4% · -5%EBAY0.4% · -9%KR0.4% · -6%DKS0.4% · 0%PH0.4% · 0%OC0.4% · -4%ALLE0.4% · -6%WSO0.3% · 0%AMAT0.3% · 0%PINS0.3% · 0%DBX0.3% · -16%HD0.3% · -5%LMT0.3% · -9%

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

Q2 26 → Q3 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 = 51.3%

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

Firm Profile & Key People

As of the firm’s regulatory filing dated Sep 9, 2026.

Assets Under Management
$54.7M
Discretionary
$54.7M
Employees
1
Accounts
30
Address
139 HARRISTOWN RD
SUITE 101C
GLEN ROCK, NJ 07452
Phone
(201) 291-7888
Website
Name Title / Status Ownership Type
GROESBECK, THEODORE, M ControlPRESIDENT/ CHIEF COMPLIANCE OFFICER
since Jan 2025
75% or moreIndividual
Ownership & leadership changes · 10 filings with changes since Mar 29, 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.

Mar 24, 2026 filing
  • No longer listedGROESBECK, ROBERT, PAUL · PRESIDENT/ CHIEF COMPLIANCE OFFICER · 75% or more · control person · listed since Jan 2025
  • ChangedGROESBECK, THEODORE, M · title PRESIDENT EMERITUS → PRESIDENT/ CHIEF COMPLIANCE OFFICER; ownership Less than 5% → 75% or more; now a control person
May 27, 2025 filing
  • ChangedGROESBECK, ROBERT, PAUL · title PRESIDENT → PRESIDENT/ CHIEF COMPLIANCE OFFICER
  • ChangedGROESBECK, THEODORE, M · title VICE PRESIDENT/ CHIEF COMPLIANCE OFFICER → PRESIDENT EMERITUS
Mar 28, 2025 filing
  • ChangedGROESBECK, ROBERT, PAUL · title PRESIDENT/ CHIEF COMPLIANCE OFFICER → PRESIDENT
  • ChangedGROESBECK, THEODORE, M · title VICE PRESIDENT → VICE PRESIDENT/ CHIEF COMPLIANCE OFFICER
Mar 20, 2023 filing
  • Listed againGROESBECK, THEODORE, M · VICE PRESIDENT · Less than 5%
Mar 30, 2022 filing
  • No longer listedGROESBECK, THEODORE, M · VICE PRESIDENT/ CHIEF COMPLIANCE OFFICER · 25–50% · control person · listed since Jan 2005
  • ChangedGROESBECK, ROBERT, PAUL · title PRESIDENT → PRESIDENT/ CHIEF COMPLIANCE OFFICER
Mar 31, 2021 filing
  • ChangedGROESBECK, ROBERT, PAUL · ownership 50–75% → 75% or more
Nov 30, 2020 filing
  • No longer listedDAINESI, ROBERT, PETER · EXECUTIVE VICE PRESIDENT · 5–10% · listed since Nov 1993
Mar 22, 2017 filing
  • ChangedGROESBECK, ROBERT, PAUL · title PRESIDENT/CHIEF COMPLIANCE OFFICER → PRESIDENT
  • ChangedGROESBECK, THEODORE, M · title VICE PRESIDENT → VICE PRESIDENT/ CHIEF COMPLIANCE OFFICER; now a control person
Mar 23, 2016 filing
  • ChangedGROESBECK, ROBERT, PAUL · ownership 75% or more → 50–75%
  • ChangedGROESBECK, THEODORE, M · ownership 10–25% → 25–50%
Mar 20, 2014 filing
  • No longer listedWALLACE, NANCY · SECRETARY/TREASURER · Less than 5% · listed since Jul 1993
Older changes (1 more filing)
Mar 29, 2012 filing (earliest on record)
  • ListedDAINESI, ROBERT, PETER · EXECUTIVE VICE PRESIDENT · 5–10%
  • ListedGROESBECK, ROBERT, PAUL · PRESIDENT/CHIEF COMPLIANCE OFFICER · 75% or more · control person
  • ListedGROESBECK, THEODORE, M · VICE PRESIDENT · 5–10%
  • ListedWALLACE, NANCY · SECRETARY/TREASURER · Less than 5%
  • ChangedGROESBECK, THEODORE, M · ownership 5–10% → 10–25%

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

GROESBECK INVESTMENT MANAGEMENT CORP /NJ/ Holdings (2026-09-30)

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 LAM RESEARCH CORP COM NEW LRCX 512807306 $6.8M 11.25% 20,673 SH
2 BROADCOM INC COM AVGO 11135F101 $4.8M 7.99% 13,731 SH
3 UNITED RENTALS INC COM URI 911363109 $3.6M 5.98% 3,605 SH
4 ARISTA NETWORKS INC COM SHS ANET 040413205 $3.0M 5.05% 14,980 SH
5 FORTINET INC COM FTNT 34959E109 $2.6M 4.35% 14,685 SH
6 NVIDIA CORPORATION COM NVDA 67066G104 $2.6M 4.23% 11,195 SH
7 MICROSOFT CORP COM MSFT 594918104 $2.1M 3.51% 4,137 SH
8 APPLE INC COM AAPL 037833100 $1.9M 3.22% 5,830 SH
9 GOLDMAN SACHS GROUP INC COM GS 38141G104 $1.8M 3.06% 2,052 SH
10 ALPHABET INC CAP STK CL C GOOG 02079K107 $1.6M 2.64% 4,670 SH
11 PALO ALTO NETWORKS INC COM PANW 697435105 $1.4M 2.29% 3,475 SH
12 OREILLY AUTOMOTIVE INC COM ORLY 67103H107 $1.4M 2.27% 16,020 SH
13 VISA INC COM CL A V 92826C839 $1.4M 2.25% 3,774 SH
14 THERMO FISHER SCIENTIFIC INC COM TMO 883556102 $1.2M 1.95% 1,742 SH
15 ALPHABET INC CAP STK CL A GOOGL 02079K305 $1.2M 1.91% 3,355 SH
16 THE CIGNA GROUP COM CI 125523100 $1.1M 1.81% 4,030 SH
17 SHERWIN WILLIAMS CO COM SHW 824348106 $975.0K 1.61% 3,015 SH
18 META PLATFORMS INC CL A META 30303M102 $928.0K 1.54% 1,280 SH
19 FIVE BELOW INC COM FIVE 33829M101 $904.0K 1.50% 4,115 SH
20 NEXSTAR MEDIA GROUP INC COMMON STOCK NXST 65336K103 $902.0K 1.49% 5,584 SH
21 ABBVIE INC COM ABBV 00287Y109 $825.0K 1.37% 3,155 SH
22 PRICE T ROWE GROUP INC COM TROW 74144T108 $802.0K 1.33% 7,712 SH
23 ESSENT GROUP LTD COM ESNT G3198U102 $790.0K 1.31% 13,640 SH
24 VERTEX PHARMACEUTICALS INC COM VRTX 92532F100 $769.0K 1.27% 1,470 SH
25 CULLEN FROST BANKERS INC COM CFR 229899109 $761.0K 1.26% 4,984 SH
26 SS&C TECH HLDGS COM SSNC 78467J100 $730.0K 1.21% 9,473 SH
27 ULTA BEAUTY INC COM ULTA 90384S303 $658.0K 1.09% 1,205 SH
28 AMGEN INC COM AMGN 031162100 $636.0K 1.05% 1,510 SH
29 TRACTOR SUPPLY CO COM TSCO 892356106 $547.0K 0.91% 17,470 SH
30 AMAZON COM INC COM AMZN 023135106 $546.0K 0.90% 2,191 SH
31 THOR INDS INC COM THO 885160101 $495.0K 0.82% 7,160 SH
32 BANK OZK LITTLE ROCK ARK COM OZK 06417N103 $487.0K 0.81% 10,607 SH
33 MERCK & CO INC COM MRK 58933Y105 $474.0K 0.79% 3,260 SH
34 EDWARDS LIFESCIENCES CORP COM EW 28176E108 $461.0K 0.76% 5,338 SH
35 MCKESSON CORP COM MCK 58155Q103 $435.0K 0.72% 510 SH
36 ABBOTT LABORATORIES COM ABT 002824100 $428.0K 0.71% 4,329 SH
37 TD SYNNEX CORPORATION COM SNX 87162W100 $413.0K 0.68% 1,608 SH
38 UNITEDHEALTH GROUP INC COM UNH 91324P102 $385.0K 0.64% 1,050 SH
39 MORGAN STANLEY COM NEW MS 617446448 $357.0K 0.59% 1,900 SH
40 COPART INC COM CPRT 217204106 $356.0K 0.59% 13,060 SH
41 QUANTA SVCS INC COM PWR 74762E102 $344.0K 0.57% 536 SH
42 IRON MTN INC DEL COM IRM 46284V101 $334.0K 0.55% 3,008 SH
43 L3HARRIS TECHNOLOGIES INC COM LHX 502431109 $331.0K 0.55% 1,400 SH
44 INTERCONTINENTAL EXCHANGE INC COM ICE 45866F104 $328.0K 0.54% 2,158 SH
45 BLACKROCK INC COM BLK 09290D101 $315.0K 0.52% 298 SH
46 WW GRAINGER INC COM GWW 384802104 $259.0K 0.43% 208 SH
47 CELESTICA INC COM CLS 15101Q207 $257.0K 0.43% 710 SH
48 CARRIER GLOBAL CORPORATION COM CARR 14448C104 $241.0K 0.40% 4,389 SH
49 EBAY INC. COM EBAY 278642103 $239.0K 0.40% 2,258 SH
50 KROGER CO COM KR 501044101 $235.0K 0.39% 4,012 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-10-26 $60.4M 94 0000923116-26-000005
2026-06-30 2026-07-15 $62.8M 100 0000923116-26-000003
2026-03-31 2026-04-22 $51.3M 94 0000923116-26-000002
2025-12-31 2026-01-21 $53.0M 94 0000923116-26-000001
Filer Information
Address
12 ROUTE 17 NORTH
SUITE 130
PARAMUS, NJ 07652
Phone
(201) 291-7888
Filing Manager
GROESBECK INVESTMENT MANAGEMENT CORP /NJ/
GLEN ROCK, NJ
Signatory
Anetta Matias
AVP