Institutional Manager · CIK 0002027176

Rockingstone Advisors LLC

GREAT BARRINGTON, MA · File #028-24217

Latest AUM

$219.5M

Positions

112

Top-10 Concentration

32.3%

Filings

Portfolio Value Over Time

2024-06

2024-09

2024-12

2025-03

2025-06

2025-09

2025-12

Biggest QoQ Changes

Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.

Action	Issuer	Ticker / CUSIP	Δ Shares	Flow ($)	Price Effect
NEW	TOWER SEMICONDUCTOR LTD	TSEM	+45,100	+$5.3M	$0
REDUCE	CELESTICA INC	CLS	-11,737	-$3.5M	+$1.3M
NEW	TEVA PHARMACEUTICAL INDS LTD	881624209	+88,325	+$2.8M	$0
ADD	SELECT SECTOR SPDR TR	81369Y803	+18,906	+$2.7M	-$2.5M
EXITED	NEW MTN FIN CORP	647551100	-186,932	-$1.8M	$0
REDUCE	NVIDIA CORPORATION	NVDA	-7,341	-$1.4M	-$3,224
NEW	FLUTTER ENTMT PLC	G3643J108	+4,955	+$1.1M	$0
ADD	VANGUARD INDEX FDS	922908629	+2,221	+$644,579	-$50,966
REDUCE	J P MORGAN EXCHANGE TRADED F	46641Q837	-11,725	-$593,168	-$25,591
ADD	LIVE NATION ENTERTAINMENT IN	LYV	+3,628	+$516,990	-$193,304

Sector Allocation

Technology

14.4%$31.6M

Financials

6.0%$13.3M

Communication Services

5.4%$11.9M

Healthcare

5.1%$11.2M

Materials

3.3%$7.2M

Consumer Discretionary

3.0%$6.7M

Industrials

2.0%$4.4M

Energy

1.1%$2.4M

Consumer Staples

0.3%$724,813

Filing History

Jan 28, 202613F HOLDINGS REPORTQ/E Dec 2025112 pos · $219.5M
Oct 9, 202513F HOLDINGS REPORTQ/E Sep 2025107 pos · $202.7M
Jul 22, 202513F HOLDINGS REPORTQ/E Jun 2025105 pos · $190.2M
Apr 15, 202513F HOLDINGS REPORTQ/E Mar 2025101 pos · $222.2M
Jan 14, 202513F HOLDINGS REPORTQ/E Dec 2024103 pos · $226.4M
Oct 8, 202413F HOLDINGS REPORTQ/E Sep 202499 pos · $203.6M
Jul 17, 202413F HOLDINGS REPORTQ/E Jun 2024105 pos · $194.8M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024107 pos · $177.2M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024100 pos · $133.9M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024115 pos · $180.9M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024107 pos · $178.4M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024103 pos · $193.7M
Jul 9, 202413F HOLDINGS REPORTQ/E Jun 2024107 pos · $164.2M

Top 20 Holdings — Dec 2025

#	Issuer	Ticker	Shares	Value	% of Portfolio
1	J P MORGAN EXCHANGE TRADED F	46641Q837	171,070	$8.7M	4.76%
2	NVIDIA CORPORATION	NVDA	32,971	$6.1M	3.38%
3	ALPHABET INC	GOOG	19,282	$6.0M	3.32%
4	VANGUARD SCOTTSDALE FDS	92206C102	101,260	$5.9M	3.27%
5	VANGUARD INDEX FDS	922908769	16,990	$5.7M	3.13%
6	ISHARES TR	464287655	22,219	$5.5M	3.01%
7	SELECT SECTOR SPDR TR	81369Y803	36,914	$5.3M	2.92%
8	TOWER SEMICONDUCTOR LTD	TSEM	45,100	$5.3M	2.91%
9	APPLE INC	AAPL	19,424	$5.3M	2.90%
10	SPDR S&P 500 ETF TR	SPY	7,244	$4.9M	2.72%
11	VANGUARD INDEX FDS	922908629	16,700	$4.8M	2.67%
12	VANGUARD INTL EQUITY INDEX F	922042874	57,702	$4.8M	2.65%
13	MICROSOFT CORP	MSFT	9,796	$4.7M	2.61%
14	VANGUARD TAX-MANAGED FDS	921943858	70,974	$4.4M	2.44%
15	AMAZON COM INC	AMZN	18,690	$4.3M	2.37%
16	CELESTICA INC	CLS	14,353	$4.2M	2.33%
17	CONSTELLIUM SE	CSTM	219,227	$4.1M	2.27%
18	NATERA INC	NTRA	17,018	$3.9M	2.14%
19	CROWDSTRIKE HLDGS INC	CRWD	8,064	$3.8M	2.08%
20	ELI LILLY & CO	LLY	3,502	$3.8M	2.07%