WOODSTOCK CORP

CIK

1008877

Location

BOSTON, MA

Portfolio Value

Mid $1,022,708,404

Diversification

Diversified

Filing Date

Global Rank

#1,727 / 8,603 ▲ 18 · as of Mar 2026

Top Industry

Semiconductors 10.9%

3Y Alpha vs SPY

-5.1%

Period ended 3 months ago

Filed Apr 8, 2026 · 3mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+54.5%

SPY

+76.0%

Annualised alpha

-5.1%

Max drawdown

−18.3%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

139 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

9.3%

−0.8 pts

Top 5

27.9%

−3.0 pts

Top 10

39.9%

−3.0 pts

HHI

267

Diversified−36

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	29.3%	$299,927,575	23
Healthcare	18.9%	$193,393,703	29
Consumer Cyclical	9.6%	$97,879,591	10
Industrials	9.5%	$96,876,724	19
Financial Services	8.2%	$83,424,945	14
Consumer Defensive	7.8%	$80,264,667	10
Energy	5.1%	$52,491,491	12
Communication Services	4.8%	$49,293,065	8
Basic Materials	2.6%	$27,077,382	5
Utilities	2.0%	$20,339,675	3
Unclassified	1.4%	$14,684,828	3
Real Estate	0.7%	$7,054,758	3

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
APA	APA Corp	+25,117	352,679	$14,967,696
FISV	Fiserv Inc	+14,573	90,361	$5,042,143
OXY	Occidental Petroleum Corp /De/	+14,074	22,932	$1,490,580
AMZN	Amazon Com Inc	+12,063	49,146	$10,235,637
ZS	Zscaler, Inc.	+10,249	60,923	$8,546,887
DXCM	Dexcom Inc	+9,546	64,034	$4,021,335
SHEL	Shell plc	+7,050	152,733	$14,204,169
HSY	Hershey Co	+5,282	24,093	$5,008,693
CVX	Chevron Corp	+4,599	52,197	$10,799,559
SHW	Sherwin Williams Co	+2,451	10,182	$3,263,840
IRM	Iron Mountain Inc	+1,780	65,497	$6,689,863
DIS	Walt Disney Co	+1,575	79,526	$7,664,715
ABT	Abbott Laboratories	+1,513	137,037	$14,069,588
REGN	Regeneron Pharmaceuticals, Inc.	+1,209	19,855	$15,340,767
SO	Southern Co	+1,135	66,195	$6,389,141
MRK	Merck & Co., Inc.	+814	124,502	$14,976,345
ROP	Roper Technologies Inc	+770	12,556	$4,443,066
BRK-B	Berkshire Hathaway Inc	+540	21,477	$10,291,778
FCX	Freeport-Mcmoran Inc	+500	12,204	$717,351
V	Visa Inc.	+453	38,733	$11,706,661
MCD	Mcdonalds Corp	+365	14,698	$4,567,991
ITW	Illinois Tool Works Inc	+304	46,207	$12,027,220
SYY	Sysco Corp	+296	79,510	$5,671,448
MKC	Mccormick & Co Inc	+284	5,020	$253,208
TMO	Thermo Fisher Scientific Inc.	+272	14,525	$7,139,473
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
NVDA	Nvidia Corp	−32,917	546,483	$95,306,635
FTNT	Fortinet, Inc.	−18,873	234,494	$19,162,849
VZ	Verizon Communications Inc	−13,487	36,384	$1,826,476
PFE	Pfizer Inc	−6,005	92,722	$2,603,633
GE	General Electric Co	−4,391	9,865	$2,799,391
ORCL	Oracle Corp	−4,107	105,515	$15,522,311
RTX	RTX Corp	−3,557	145,287	$28,025,862
ENB	Enbridge Inc	−3,161	43,956	$2,379,777
CVS	CVS HEALTH Corp	−2,860	27,359	$1,964,923
WMT	Walmart Inc.	−2,857	140,085	$17,409,763
PG	PROCTER & GAMBLE Co	−2,131	72,627	$10,490,243
QCOM	Qualcomm Inc/De	−2,068	42,562	$5,481,134
KO	Coca Cola Co	−2,001	47,060	$3,578,913
UPS	United Parcel Service Inc	−1,757	33,464	$3,292,188
ORLY	O Reilly Automotive Inc	−1,744	556,467	$51,367,468
APD	Air Products & Chemicals, Inc.	−1,718	34,418	$9,998,084
PEP	Pepsico Inc	−1,328	85,926	$13,343,448
ISRG	Intuitive Surgical Inc	−1,280	81,029	$37,353,558
NEE	Nextera Energy Inc	−1,271	137,564	$12,776,944
AAPL	Apple Inc.	−1,232	167,486	$42,506,271
GOOGL	Alphabet Inc.	−1,059	112,266	$32,283,210
BMY	Bristol Myers Squibb Co	−1,010	37,696	$2,286,262
FLS	Flowserve Corp	−960	68,194	$5,012,940
OTIS	Otis Worldwide Corp	−902	9,057	$698,113
LGND	Ligand Pharmaceuticals Inc	−885	19,120	$3,817,308
No positions match the current search.

New Positions

Positions the filer opened this quarter

4 positions

Ticker	Company	Shares	Value
NFLX	Netflix Inc	22,270	$2,141,260
OUST	Ouster, Inc.	16,970	$311,738
META	Meta Platforms, Inc.	470	$268,901
DRTS	Alpha Tau Medical Ltd.	20,609	$145,705
No positions match the current search.

Sold Out

Positions the filer fully exited

3 positions

Ticker	Company	Shares	Value
DHR	Danaher Corp /De/	1,373	$314,307
ADBE	Adobe Inc.	888	$310,791
CTSH	Cognizant Technology Solutions Corp	3,641	$302,203
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

139 positions · $1,022,708,404 total · as of Mar 31, 2026

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

Showing 1–50 of 139 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Reduced	546,483	-32,917	$95,306,635	−11.8%	9.32%
MSFT	Microsoft Corp Technology	Reduced	158,252	-158	$58,580,142	−23.5%	5.73%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Reduced	556,467	-1,744	$51,367,468	+0.9%	5.02%
AAPL	Apple Inc. Technology	Reduced	167,486	-1,232	$42,506,271	−7.3%	4.16%
ISRG	Intuitive Surgical Inc Healthcare	Reduced	81,029	-1,280	$37,353,558	−19.9%	3.65%
GOOGL	Alphabet Inc. Communication Services	Reduced	112,266	-1,059	$32,283,210	−9.0%	3.16%
RTX	RTX Corp Industrials	Reduced	145,287	-3,557	$28,025,862	+2.7%	2.74%
COST	Costco Wholesale Corp /New Consumer Defensive	Reduced	21,931	-234	$21,852,706	+14.3%	2.14%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	68,883	-9	$20,262,623	−8.7%	1.98%
ABBV	AbbVie Inc. Healthcare	Reduced	93,086	-48	$20,245,274	−4.9%	1.98%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	60,079	-195	$19,759,382	−4.7%	1.93%
JNJ	Johnson & Johnson Healthcare	Reduced	80,398	-406	$19,652,487	+17.5%	1.92%
FTNT	Fortinet, Inc. Technology	Reduced	234,494	-18,873	$19,162,849	−4.8%	1.87%
WMT	Walmart Inc. Consumer Defensive	Reduced	140,085	-2,857	$17,409,763	+9.3%	1.70%
ORCL	Oracle Corp Technology	Reduced	105,515	-4,107	$15,522,311	−27.4%	1.52%
REGN	Regeneron Pharmaceuticals, Inc. Healthcare	Added	19,855	+1,209	$15,340,767	+6.6%	1.50%
MRK	Merck & Co., Inc. Healthcare	Added	124,502	+814	$14,976,345	+15.0%	1.46%
APA	APA Corp Energy	Added	352,679	+25,117	$14,967,696	+86.8%	1.46%
SHEL	Shell plc Energy	Added	152,733	+7,050	$14,204,169	+32.7%	1.39%
ABT	Abbott Laboratories Healthcare	Added	137,037	+1,513	$14,069,588	−17.1%	1.38%
CSCO	Cisco Systems, Inc. Technology	Reduced	174,325	-650	$13,525,876	+0.4%	1.32%
PEP	Pepsico Inc Consumer Defensive	Reduced	85,926	-1,328	$13,343,448	+6.6%	1.30%
IDXX	Idexx Laboratories Inc /De Healthcare	Reduced	23,658	-510	$13,293,193	−18.7%	1.30%
ECL	Ecolab Inc. Basic Materials	Reduced	48,039	-371	$12,779,334	+0.6%	1.25%
NEE	Nextera Energy Inc Utilities	Reduced	137,564	-1,271	$12,776,944	+14.6%	1.25%
EMR	Emerson Electric Co Industrials	Added	95,967	+59	$12,573,596	−1.2%	1.23%
STT	State Street Corp Financial Services	Reduced	96,894	-855	$12,262,904	−2.8%	1.20%
ITW	Illinois Tool Works Inc Industrials	Added	46,207	+304	$12,027,220	+6.4%	1.18%
V	Visa Inc. Financial Services	Added	38,733	+453	$11,706,661	−12.8%	1.14%
ADP	Automatic Data Processing Inc Technology	Reduced	55,915	-213	$11,360,809	−21.3%	1.11%
LLY	ELI LILLY & Co Healthcare	Added	12,057	+112	$11,089,666	−13.6%	1.08%
AMAT	Applied Materials Inc /De Technology	Reduced	32,204	-330	$11,007,005	+31.6%	1.08%
CVX	Chevron Corp Energy	Added	52,197	+4,599	$10,799,559	+48.9%	1.06%
MDT	Medtronic plc Healthcare	Reduced	122,060	-750	$10,576,499	−10.3%	1.03%
PG	PROCTER & GAMBLE Co Consumer Defensive	Reduced	72,627	-2,131	$10,490,243	−2.1%	1.03%
BRK-B	Berkshire Hathaway Inc Financial Services	Added	21,477	+540	$10,291,778	−2.2%	1.01%
AMZN	Amazon Com Inc Consumer Cyclical	Added	49,146	+12,063	$10,235,637	+19.6%	1.00%
APD	Air Products & Chemicals, Inc. Basic Materials	Reduced	34,418	-1,718	$9,998,084	+12.0%	0.98%
FDX	Fedex Corp Industrials	Added	34,006	+50	$9,760,079	+23.5%	0.95%
CB	Chubb Ltd Financial Services	Reduced	26,610	-70	$8,672,997	+4.2%	0.85%
ZS	Zscaler, Inc. Technology	Added	60,923	+10,249	$8,546,887	−25.0%	0.84%
ADI	Analog Devices Inc Technology	Added	24,683	+69	$7,852,649	+17.6%	0.77%
BAC	Bank Of America Corp /De/ Financial Services	Reduced	158,646	-525	$7,733,992	−11.7%	0.76%
DIS	Walt Disney Co Communication Services	Added	79,526	+1,575	$7,664,715	−13.6%	0.75%
TMO	Thermo Fisher Scientific Inc. Healthcare	Added	14,525	+272	$7,139,473	−13.6%	0.70%
IRM	Iron Mountain Inc Real Estate	Added	65,497	+1,780	$6,689,863	+26.6%	0.65%
TSCO	Tractor Supply Co /De/ Consumer Cyclical	Reduced	145,185	-540	$6,576,880	−9.8%	0.64%
MMM	3M Co Industrials	Reduced	45,191	-255	$6,563,088	−9.8%	0.64%
SO	Southern Co Utilities	Added	66,195	+1,135	$6,389,141	+12.6%	0.62%
SPY	Spdr S&P 500 ETF Trust	Added	9,081	+195	$5,905,737	−2.5%	0.58%