13F
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Hemenway Trust Co LLC

13F equity value
$1.2B
Positions
135
Top 10 concentration
43.1%
Quarters / total new picks
28 / 104
13F equity value over time
$0M$654M$1B2017201820192020202120222023202420252026

"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.

Not significant Verdict

13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.

We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 28 quarters, returned +8.3% per quarter — versus +4.0% per quarter from simply owning every 13F stock. It beat that baseline in only 57.1% of quarters (excess t = 1.60, not statistically significant). Its filings tell you what it bought — not what you should buy.

Avg 2Q excess
+7.3%
t-stat
1.60
Quarterly win rate
57%
Annualized excess
+18.0%
$1 → follow vs universe
$7.32 vs $2.65
Cumulative return: $1 invested in new picks vs universe
1.00 20180331: universe 1.04120180930: universe 1.08920190331: universe 1.07020190630: universe 1.15020190930: universe 1.23620191231: universe 0.99820200331: universe 1.20320200630: universe 1.32820200930: universe 1.62920201231: universe 1.70420210331: universe 1.71920210630: universe 1.85620210930: universe 1.66620211231: universe 1.41820220331: universe 1.52220220930: universe 1.63520221231: universe 1.51920230331: universe 1.60020230630: universe 1.54320230930: universe 1.75120231231: universe 1.83020240331: universe 1.87120240630: universe 2.04120240930: universe 2.02320250331: universe 2.20620250630: universe 2.27520250930: universe 2.55820251231: universe 2.647 20180331: follow 1.05420180930: follow 1.05420190331: follow 1.02020190630: follow 1.05220190930: follow 1.09420191231: follow 1.02820200331: follow 1.23520200630: follow 1.38020200930: follow 1.44620201231: follow 1.49920210331: follow 1.59120210630: follow 1.63320210930: follow 1.59220211231: follow 1.49820220331: follow 2.40720220930: follow 2.46520221231: follow 2.43820230331: follow 2.63020230630: follow 2.75420230930: follow 2.69120231231: follow 2.87520240331: follow 2.90520240630: follow 3.19120240930: follow 3.57220250331: follow 3.64620250630: follow 4.03720250930: follow 4.62720251231: follow 7.321 0.92 4.41 7.91 20182019202020212022202320242025 Follow Universe

Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)

Listed as facts. See the verdict above before treating this as signal.

Top 20 holdings of 135 · 2026 Q1

Ticker Value Weight QoQ
GOOGL $75M
6.1%
TRIM
NVDA $67M
5.4%
HOLD
AAPL $65M
5.2%
HOLD
ADI $52M
4.2%
TRIM
MSFT $52M
4.2%
HOLD
TJX $49M
4.0%
HOLD
AMZN $49M
3.9%
HOLD
MA $44M
3.5%
HOLD
RTX $42M
3.4%
TRIM
JNJ $41M
3.3%
TRIM
AMD $40M
3.2%
TRIM
ABT $35M
2.8%
HOLD
HD $34M
2.8%
HOLD
SBGSY $34M
2.7%
HOLD
ROK $32M
2.6%
TRIM
PG $31M
2.5%
HOLD
DHR $31M
2.5%
HOLD
CVX $31M
2.5%
HOLD
ADP $28M
2.2%
TRIM
ATR $27M
2.2%
TRIM

QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.

Listed as facts. See the verdict above before treating this as signal.

New positions in 2026 Q1

Method & Limitations

Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.