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Primecap Management

Primecap Management Portfolio holdings

AUM $169B Turnover 4.85%
1-Year Est. Return 114.72%
This Fund
S&P 500
This Quarter Est. Return
+66.83%
1 Year Est. Return
+114.72%
3 Year Est. Return
+234.44%
5 Year Est. Return
+291.25%
10 Year Est. Return
+1,263.36%
AUM
$169B
AUM Growth
+$42.1B
Cap. Flow
-$1.64B
Cap. Flow %
-0.97%
Top 10 Hldgs %
42.55%
Holding
330
New
10
Increased
82
Reduced
180
Closed
6
Avg Time Held
7.4 years
Top 10 Avg Time Held
2.4 years
Top 20 Avg Time Held
6.1 years

Top Buys

Rank Stock Value
1
BSX icon
Boston Scientific
BSX
+$977M
2
FDXF icon
FedEx Freight
FDXF
+$663M
3
AAL icon
American Airlines Group
AAL
+$291M
4
SPCX icon
SpaceX
SPCX
+$239M
5
MRSH icon
Marsh
MRSH
+$239M

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.99B
2
KLAC icon
KLA
KLAC
+$762M
3
AMGN icon
Amgen
AMGN
+$725M
4
TXN icon
Texas Instruments
TXN
+$316M
5
FLEX icon
Flex
FLEX
+$246M

Sector Composition

Rank Sector Weight
1 Technology 42.77%
2 Healthcare 21.12%
3 Industrials 11.72%
4 Consumer Discretionary 8.17%
5 Financials 6.77%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
PRM icon
201
Perimeter Solutions
PRM
$4.47B
$53.4M 0.03%
1,496,851
-137,949
-8% -$4.31M
2021 Q4
18 quarters
BRKR icon
202
Bruker
BRKR
$8.61B
$53.1M 0.03%
883,100
+25,500
+3% +$1.19M
2025 Q4
2 quarters
PINS icon
203
Pinterest
PINS
$12.9B
$52.1M 0.03%
2,477,400
– –
2019 Q2
28 quarters
DSGX icon
204
Descartes Systems
DSGX
$7.58B
$50.5M 0.03%
728,775
-449,665
-38% -$32.1M
2013 Q2
52 quarters
DE icon
205
Deere & Co
DE
$175B
$46.1M 0.03%
72,670
– –
2013 Q2
52 quarters
QCOM icon
206
Qualcomm
QCOM
$191B
$44.2M 0.03%
239,250
-466,337
-66% -$87.2M
2013 Q2
52 quarters
RGEN icon
207
Repligen
RGEN
$11.7B
$44.1M 0.03%
323,268
+88,200
+38% +$10.8M
2021 Q2
20 quarters
LHX icon
208
L3Harris
LHX
$44.8B
$41.6M 0.02%
143,000
– –
2026 Q1
1 quarter
CRM icon
209
Salesforce
CRM
$203B
$40.6M 0.02%
259,450
– –
2013 Q2
52 quarters
GFF icon
210
Griffon
GFF
$4.22B
$40.2M 0.02%
411,947
-5,150
-1% -$449K
2023 Q2
12 quarters
XEL icon
211
Xcel Energy
XEL
$46.9B
$39.9M 0.02%
496,300
+429,300
+641% +$34.3M
2026 Q1
1 quarter
KEY icon
212
KeyCorp
KEY
$21.3B
$39.2M 0.02%
1,699,430
– –
2023 Q3
11 quarters
BIRK icon
213
Birkenstock
BIRK
$5.93B
$39.2M 0.02%
910,100
+312,900
+52% +$12.6M
2025 Q4
2 quarters
PVLA icon
214
Palvella Therapeutics
PVLA
$1.83B
$39.1M 0.02%
256,182
+61,152
+31% +$7.42M
2026 Q1
1 quarter
SEPN icon
215
Septerna Inc
SEPN
$1.75B
$39.1M 0.02%
1,167,382
+118,548
+11% +$3.36M
2025 Q4
2 quarters
THG icon
216
Hanover Insurance
THG
$7.95B
$37.8M 0.02%
176,740
+700
+0.4% +$133K
2025 Q4
2 quarters
BB icon
217
BlackBerry
BB
$5.11B
$36.4M 0.02%
2,874,476
– –
2013 Q2
52 quarters
NWL icon
218
Newell Brands
NWL
$2.46B
$36M 0.02%
5,863,700
-1,661,690
-22% -$7.03M
2014 Q1
49 quarters
TROX icon
219
Tronox
TROX
$565M
$34.5M 0.02%
5,468,402
-10,000
-0.2% -$84.8K
2023 Q3
11 quarters
KEX icon
220
Kirby Corp
KEX
$7.24B
$34.4M 0.02%
253,353
-10,450
-4% -$1.49M
2020 Q4
22 quarters
XOM icon
221
ExxonMobil
XOM
$718B
$34.1M 0.02%
249,726
– –
2024 Q2
8 quarters
GFL icon
222
GFL Environmental
GFL
$19B
$33.5M 0.02%
911,000
+243,200
+36% +$9.19M
2022 Q4
14 quarters
MBLY icon
223
Mobileye
MBLY
$6.32B
$33.1M 0.02%
3,417,080
+219,900
+7% +$1.96M
2022 Q4
14 quarters
IE icon
224
Ivanhoe Electric
IE
$1.39B
$32.9M 0.02%
3,428,284
+188,700
+6% +$2.38M
2023 Q3
11 quarters
NCLH icon
225
Norwegian Cruise Line
NCLH
$7.07B
$32.7M 0.02%
1,548,464
-52,140
-3% -$973K
2014 Q1
49 quarters
7 8
9
10 11

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Primecap Management's Q2 2026 Portfolio in Review

As of Q2 2026, Primecap Management held 330 positions worth $169B, up 33% from $127B the previous quarter. Its ten largest holdings account for 43% of the portfolio.

Trading was light in Q2 2026: portfolio turnover was 4.8%. Primecap Management opened 10 new positions and exited 6, leaving the 330-position portfolio largely intact.

By sector, the portfolio is most concentrated in Technology at 43% of assets, up from 31% a quarter earlier, followed by Healthcare and Industrials.

  • Primecap Management's largest Q2 2026 buy was FedEx Freight: 4,048,660 shares worth $611M.
  • Primecap Management added most to Boston Scientific in Q2 2026, an estimated $977M increase.
  • Primecap Management's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.99B.
  • Primecap Management fully exited Coterra Energy in Q2 2026, selling an estimated $80.5M.
  • Primecap Management's ten largest holdings make up 43% of its $169B portfolio in Q2 2026.
  • Primecap Management opened 10 new positions and closed 6 in Q2 2026.
  • Primecap Management's portfolio value rose 33% quarter-over-quarter to $169B.

Based on Primecap Management's 13F filing for Q2 2026, filed 14 Aug 2026.