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Martin Marietta Materials Inc

MLM

Martin Marietta Materials Inc

Martin Marietta Materials Inc historical holders

total: 4

Egerton Capital Martin Marietta Materials Inc transactions over time

Total transactions:
26
New positions:
4
Sold out:
4
Added:
5
Reduced:
13
Held since:
2024 Q3
Held for:
3 quarters
Latest activity:
2025 Q2
John Armitage has been an institutional investor in Martin Marietta Materials Inc (MLM) since 2015 Q2. According to 2026 Q2 report, John Armitage doesn't hold any shares. The fund/company first acquired MLM in 2015 Q2, initially purchasing about 1.90M shares. John Armitage later completely sold out the position and reinvested in MLM again in 2024 Q3. Since the initial investment, Egerton Capital has made 25 more transactions in this position.

When did John Armitage exit their MLM position?

John Armitage no longer holds Martin Marietta Materials Inc (MLM). They sold off their entire position in 2025 Q2, closing out an investment that began in 2015 Q2.

When did John Armitage first invest in MLM?

John Armitage first invested in Martin Marietta Materials Inc (MLM) in 2015 Q2 at the reported quarter-end price of $141.51 per share, acquiring 1,898,157 shares in their initial purchase.

What is John Armitage's average cost basis for MLM?

Based on historical transaction data, John Armitage's estimated cost basis for Martin Marietta Materials Inc (MLM) is approximately $520.90 per share. This represents their average reported price* across all buy transactions.

Has John Armitage reinvested in MLM after selling?

Yes, John Armitage has shown renewed interest in Martin Marietta Materials Inc (MLM). After completely selling their position, they reinitiated an investment in 2024 Q3, demonstrating continued conviction in this ticker.

Estimated cost basis*

Weighted AVG buy price:
$520.90
Weighted AVG sell price:
$494.45

MLM transactions history by Egerton Capital

26 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2025 Q2
0.00%
0
$478.13
-100% (-165,338)
-0.91%
2025 Q1
0.91%
165,338
$478.13
$79,053,058
+100.96% (+83,062)
+0.46%
2024 Q4
0.49%
82,276
$516.50
$42,495,554
-59.80% (-122,398)
-0.64%
2024 Q3
1.11%
204,674
$538.25
$110,165,781
new
+1.11%
2021 Q2
0.00%
0
$335.82
-100% (-180,271)
-0.32%
2021 Q1
0.32%
180,271
$335.82
$60,539,000
-51.70% (-192,929)
-0.37%
2020 Q4
0.60%
$283.97
-59.46% (-547,300)
2020 Q3
1.34%
$235.36
new
2020 Q1
0.00%
$279.64
-100% (-1,241,056)
2019 Q4
2.48%
$279.64
-28.47% (-493,917)
2019 Q3
3.41%
$274.10
-19.14% (-410,792)
2019 Q2
3.61%
$230.11
-2.67% (-58,937)
2019 Q1
3.13%
$201.18
+40.57% (+636,338)
2018 Q4
2.24%
$171.87
new
2018 Q1
0.00%
$221.04
-100% (-916,019)
2017 Q4
1.77%
$221.04
-47.67% (-834,361)
2017 Q3
3.23%
$206.23
-11.05% (-217,485)
2017 Q2
4.39%
$222.58
+329.10% (+1,509,258)
2017 Q1
1.08%
$218.25
-39.62% (-300,946)
2016 Q4
2.05%
$221.53
-24.45% (-245,817)
2016 Q3
2.04%
$179.11
-31.74% (-467,582)
2016 Q2
3.17%
$192.00
+53.37% (+512,574)
2016 Q1
1.46%
$159.51
-31.45% (-440,587)
2015 Q4
1.98%
$136.58
-46.85% (-1,234,755)
2015 Q3
4.53%
$151.95
+38.86% (+737,563)
2015 Q2
3.40%
$141.51
new
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.