First Long Island Investors, LLC

Registered adviser

CIK

1490429

Location

JERICHO, NY

Portfolio Value

Mid $1,468,071,861

Diversification

Diversified

Filing Date

Global Rank

#1,902 / 8,807 ▼ 89

Top Industry

Semiconductors 15.2%

Period ended 4 months ago

Filed Aug 13, 2026 · 2mo

26 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 167212

Roster of Oct 1, 2026

Regulatory AUM

$1,861,290,657

Main clients

Individuals and high net worth (63% of AUM)

Private funds

9 funds · Hedge funds

Focus by fund count, roster of Oct 1, 2026

$553,599,788 gross assets

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

As filed Mar 28, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$505,216,998 gross assets in 11 funds Hedge funds $483,556,320 (5) Other private funds $19,619,765 (2) Private equity funds $1,824,870 (2) Real estate funds $216,043 (2)

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	$1,861,290,657	Individuals and high net worth (63%)
Apr 2025 to Mar 2026	$1,708,156,301	Individuals and high net worth (61%)
Apr 2024 to Mar 2025	$1,545,821,993	Individuals and high net worth (60%)
May 2023 to Mar 2024	$1,348,706,257	Individuals and high net worth (59%)
Apr 2023	$1,348,706,257	Individuals and high net worth (59%)
Apr 2022 to Mar 2023	$1,744,558,902	Individuals and high net worth (51%)

4 earlier changes not shown.

Portfolio style

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

Style

Diversified active

Top 10 weight 46.9%, 28.2 effective positions, active share 58.9% against the S&P 500 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

Low turnover

23.2% over the last four quarters (under 30%)

Horizon

Long horizon

Value-weighted holding period 17.5 quarters (12+), a floor since 46.0% of the book was already held when coverage starts

Closest benchmark: the S&P 500 as of 2026-06-30, active share 58.9%; sector active share 19.2% 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

72 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

10.7%

+3.4 pts

Top 5

29.6%

+2.7 pts

Top 10

46.9%

+2.6 pts

HHI

355

Diversified+42

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	39.2%	$575,555,850	17
Industrials	14.4%	$211,097,598	11
Healthcare	13.0%	$190,589,136	11
Financial Services	11.3%	$166,087,862	10
Consumer Cyclical	10.3%	$150,689,264	6
Communication Services	7.6%	$112,245,742	6
Consumer Defensive	2.9%	$43,042,831	2
Utilities	1.1%	$16,448,800	1
Unclassified	0.1%	$1,478,868	5
Basic Materials	0.1%	$835,910	3

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
APH	Amphenol Corp /De/	+84,426	445,193	$156,992,859
SCHW	Schwab Charles Corp	+36,476	42,429	$3,914,923
AAPL	Apple Inc.	+36,111	150,353	$43,506,144
GEV	GE Vernova Inc.	+17,236	27,523	$32,335,671
AMZN	Amazon Com Inc	+15,207	289,993	$69,116,931
ADP	Automatic Data Processing Inc	+11,331	121,048	$27,108,699
ETN	Eaton Corp plc	+10,911	65,924	$28,091,534
TJX	Tjx Companies Inc /De/	+10,693	12,007	$1,819,060
NVDA	Nvidia Corp	+8,786	354,890	$71,009,940
CDNS	Cadence Design Systems Inc	+8,176	24,505	$9,197,216
SNPS	Synopsys Inc	+8,001	29,476	$13,148,359
UNH	Unitedhealth Group Inc	+6,333	58,973	$24,510,947
AVGO	Broadcom Inc.	+4,687	123,999	$46,840,622
VO	VANGUARD MID-CAP INDEX FUND	+2,670	3,560	$286,829
UBER	Uber Technologies, Inc	+2,197	284,137	$20,503,325
LLY	ELI LILLY & Co	+1,839	45,914	$55,070,633
FICO	Fair Isaac Corp	+1,839	17,465	$20,866,832
CNI	Canadian National Railway Co	+540	150,974	$18,002,139
MSFT	Microsoft Corp	+453	160,492	$59,866,725
SYK	Stryker Corp	+337	1,217	$383,160
META	Meta Platforms, Inc.	+270	48,898	$27,543,754
PH	Parker-Hannifin Corp	+244	60,284	$58,964,986
PM	Philip Morris International Inc.	+236	159,442	$28,844,652
MSI	Motorola Solutions, Inc.	+152	640	$265,785
ISRG	Intuitive Surgical Inc	+150	11,750	$4,672,740
No positions match the current search.

Trimmed

Positions the filer reduced

20 positions

Ticker	Company	Δ Shares	Shares	Value
ABT	Abbott Laboratories	−147,468	234,505	$21,278,983
BX	Blackstone Inc.	−100,727	63,585	$7,482,046
LOW	Lowes Companies Inc	−60,923	95,106	$20,969,921
TSM	Taiwan Semiconductor Manufacturing Co Ltd	−18,953	98,125	$46,861,556
NFLX	Netflix Inc	−12,152	84,008	$5,998,171
GOOGL	Alphabet Inc.	−8,805	165,391	$59,105,781
V	Visa Inc.	−7,305	135,745	$46,572,752
MA	Mastercard Inc	−5,048	60,309	$30,974,702
GOOG	Alphabet Inc.	−4,402	53,293	$18,830,015
USB	US Bancorp De	−554	318,034	$19,209,253
QCOM	Qualcomm Inc/De	−239	132,517	$24,487,816
JNJ	Johnson & Johnson	−183	112,030	$28,452,259
FAST	Fastenal Co	−127	500,113	$24,020,427
ABBV	AbbVie Inc.	−125	118,244	$29,754,920
ITW	Illinois Tool Works Inc	−122	54,901	$14,849,073
WSM	Williams Sonoma Inc	−83	130,525	$30,425,377
AMGN	Amgen Inc	−83	69,904	$25,313,636
MCD	Mcdonalds Corp	−51	50,947	$13,771,483
TMO	Thermo Fisher Scientific Inc.	−4	888	$445,207
HD	Home Depot, Inc.	−2	41,359	$14,586,492
No positions match the current search.

New Positions

Positions the filer opened this quarter

11 positions

Ticker	Company	Shares	Value
MU	Micron Technology Inc	29,207	$33,713,348
LSEGY	London Stock Exchange Group plc	698,230	$18,894,103
LMT	Lockheed Martin Corp	24,948	$12,710,008
HON	Honeywell International Inc	48,156	$10,782,128
HONA	Honeywell Aerospace Inc.	48,057	$10,624,441
MSGS	Madison Square Garden Sports Corp.	1,156	$464,527
SPHR	Sphere Entertainment Co.	1,754	$303,494
DELL	Dell Technologies Inc.	650	$280,449
ECL	Ecolab Inc.	851	$237,097
CTAS	Cintas Corp	1,249	$212,429
IJT	iShares S&P Small-Cap 600 Growth ETF	1,340	$0
No positions match the current search.

Sold Out

Positions the filer fully exited

7 positions

Ticker	Company	Shares	Value
INTU	Intuit Inc.	31,873	$13,781,247
ZTS	Zoetis Inc.	108,517	$12,827,794
SPOT	Spotify Technology S.A.	25,616	$12,421,454
PAYX	Paychex Inc	127,152	$11,713,242
COF	Capital One Financial Corp	58,666	$10,702,438
IQV	Iqvia Holdings Inc.	1,422	$242,507
COO	Cooper Companies, Inc.	2,818	$201,487
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

72 tracked positions · $1,468,071,861 total · filing declares 73 positions · $1,410,440,356 · as of Jun 30, 2026

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

Showing 1–50 of 72 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
APH	Amphenol Corp /De/ Technology	Added	445,193	+84,426	$156,992,859	+72.2%	8	unpriced	10.69%
NVDA	Nvidia Corp Technology	Added	354,890	+8,786	$71,009,940	+17.6%	25	before history	4.84%
AMZN	Amazon Com Inc Consumer Cyclical	Added	289,993	+15,207	$69,116,931	+20.8%	26+	before history	4.71%
MSFT	Microsoft Corp Technology	Added	160,492	+453	$59,866,725	+1.1%	26+	before history	4.08%
GOOGL	Alphabet Inc. Communication Services	Reduced	165,391	-8,805	$59,105,781	+18.0%	26+	before history	4.03%
PH	Parker-Hannifin Corp Industrials	Added	60,284	+244	$58,964,986	+9.7%	14	$339.91	4.02%
LLY	ELI LILLY & Co Healthcare	Added	45,914	+1,839	$55,070,633	+35.8%	13	$679.15	3.75%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Reduced	98,125	-18,953	$46,861,556	+18.4%	10	$145.98	3.19%
AVGO	Broadcom Inc. Technology	Added	123,999	+4,687	$46,840,622	+26.8%	7	$225.36	3.19%
V	Visa Inc. Financial Services	Reduced	135,745	-7,305	$46,572,752	+7.7%	26+	before history	3.17%
AAPL	Apple Inc. Technology	Added	150,353	+36,111	$43,506,144	+50.1%	26+	before history	2.96%
JPM	Jpmorgan Chase & Co Financial Services	Added	116,356	+48	$38,086,809	+11.3%	22	$143.52	2.59%
MU	Micron Technology Inc Technology	NEW	29,207	NEW	$33,713,348	NEW	1	$749.89	2.30%
GEV	GE Vernova Inc. Industrials	Added	27,523	+17,236	$32,335,671	+260.1%	2	$930.79	2.20%
MA	Mastercard Inc Financial Services	Reduced	60,309	-5,048	$30,974,702	−5.1%	26+	before history	2.11%
WSM	Williams Sonoma Inc Consumer Cyclical	Reduced	130,525	-83	$30,425,377	+27.8%	26+	before history	2.07%
ABBV	AbbVie Inc. Healthcare	Reduced	118,244	-125	$29,754,920	+15.6%	26+	before history	2.03%
PM	Philip Morris International Inc. Consumer Defensive	Added	159,442	+236	$28,844,652	+9.6%	26+	before history	1.96%
JNJ	Johnson & Johnson Healthcare	Reduced	112,030	-183	$28,452,259	+3.7%	26+	before history	1.94%
ETN	Eaton Corp plc Industrials	Added	65,924	+10,911	$28,091,534	+42.8%	8	$327.21	1.91%
META	Meta Platforms, Inc. Communication Services	Added	48,898	+270	$27,543,754	−1.0%	9	$530.21	1.88%
ADP	Automatic Data Processing Inc Technology	Added	121,048	+11,331	$27,108,699	+21.6%	26+	before history	1.85%
AMGN	Amgen Inc Healthcare	Reduced	69,904	-83	$25,313,636	+2.8%	26+	before history	1.72%
UNH	Unitedhealth Group Inc Healthcare	Added	58,973	+6,333	$24,510,947	+72.1%	26+	before history	1.67%
QCOM	Qualcomm Inc/De Technology	Reduced	132,517	-239	$24,487,816	+43.2%	26+	before history	1.67%
FAST	Fastenal Co Industrials	Reduced	500,113	-127	$24,020,427	+3.5%	26+	before history	1.64%
ABT	Abbott Laboratories Healthcare	Reduced	234,505	-147,468	$21,278,983	−45.7%	26+	before history	1.45%
LOW	Lowes Companies Inc Consumer Cyclical	Reduced	95,106	-60,923	$20,969,921	−43.1%	26+	before history	1.43%
FICO	Fair Isaac Corp Technology	Added	17,465	+1,839	$20,866,832	+25.1%	3	$1,450.09	1.42%
UBER	Uber Technologies, Inc Technology	Added	284,137	+2,197	$20,503,325	+1.1%	10	$75.29	1.40%
USB	US Bancorp De Financial Services	Reduced	318,034	-554	$19,209,253	+15.9%	22	$50.26	1.31%
LSEGY	London Stock Exchange Group plc Financial Services	NEW	698,230	NEW	$18,894,103	NEW	1	$30.73	1.29%
GOOG	Alphabet Inc. Communication Services	Reduced	53,293	-4,402	$18,830,015	+13.8%	26+	before history	1.28%
CNI	Canadian National Railway Co Industrials	Added	150,974	+540	$18,002,139	+16.4%	8	$112.33	1.23%
NEE	Nextera Energy Inc Utilities	Added	187,408	+93	$16,448,800	−5.5%	4	$73.09	1.12%
ITW	Illinois Tool Works Inc Industrials	Reduced	54,901	-122	$14,849,073	+3.7%	26+	before history	1.01%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	41,359	-2	$14,586,492	+7.2%	26+	before history	0.99%
PEP	Pepsico Inc Consumer Defensive	Added	104,861	+127	$14,198,179	−12.7%	26+	before history	0.97%
MCD	Mcdonalds Corp Consumer Cyclical	Reduced	50,947	-51	$13,771,483	−13.1%	26+	before history	0.94%
SNPS	Synopsys Inc Technology	Added	29,476	+8,001	$13,148,359	+54.4%	2	$456.99	0.90%
LMT	Lockheed Martin Corp Industrials	NEW	24,948	NEW	$12,710,008	NEW	1	$540.63	0.87%
HON	Honeywell International Inc Industrials	NEW	48,156	NEW	$10,782,128	NEW	1	unpriced	0.73%
HONA	Honeywell Aerospace Inc. Industrials	NEW	48,057	NEW	$10,624,441	NEW	1	unpriced	0.72%
CDNS	Cadence Design Systems Inc Technology	Added	24,505	+8,176	$9,197,216	+102.7%	8	$314.86	0.63%
BX	Blackstone Inc. Financial Services	Reduced	63,585	-100,727	$7,482,046	−60.4%	17	$101.19	0.51%
NFLX	Netflix Inc Communication Services	Reduced	84,008	-12,152	$5,998,171	−35.1%	15	$69.27	0.41%
ISRG	Intuitive Surgical Inc Healthcare	Added	11,750	+150	$4,672,740	−12.6%	26+	before history	0.32%
SCHW	Schwab Charles Corp Financial Services	Added	42,429	+36,476	$3,914,923	+599.8%	5	$91.16	0.27%
TJX	Tjx Companies Inc /De/ Consumer Cyclical	Added	12,007	+10,693	$1,819,060	+766.9%	3	$156.99	0.12%
QQQ	Invesco Qqq Trust, Series 1	Held	875	0	$644,350	+27.6%	25	before history	0.04%

Showing the top 50 of 72 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.