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Mattern Capital Management’s Amgen AMGN Stock Holding History

Mattern Capital Management’s Portfolio AMGN Stock Details AMGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$10.1M Buy
28,008
+4,118
+17% +$1.41M 1.18% 36
2026
Q1 		$8.41M Sell
23,890
-10,686
-31% -$3.81M 1.01% 55
2025
Q4 		$11.3M Sell
34,576
-3,728
-10% -$1.18M 1.34% 14
2025
Q3 		$10.8M Buy
38,304
+4,411
+13% +$1.28M 1.27% 21
2025
Q2 		$9.46M Buy
33,893
+852
+3% +$241K 1.14% 38
2025
Q1 		$10.3M Buy
33,041
+364
+1% +$107K 1.31% 16
2024
Q4 		$8.52M Sell
32,677
-908
-3% -$269K 1.11% 49
2024
Q3 		$10.8M Sell
33,585
-296
-0.9% -$96.8K 1.36% 22
2024
Q2 		$10.6M Sell
33,881
-300
-0.9% -$88.1K 1.46% 13
2024
Q1 		$9.72M Buy
34,181
+353
+1% +$103K 1.32% 20
2023
Q4 		$9.74M Buy
33,828
+487
+1% +$133K 1.42% 12
2023
Q3 		$8.96M Buy
33,341
+3,800
+13% +$948K 1.45% 10
2023
Q2 		$6.56M Buy
29,541
+1,668
+6% +$387K 1.06% 53
2023
Q1 		$6.74M Buy
27,873
+2,149
+8% +$528K 1.19% 31
2022
Q4 		$6.76M Sell
25,724
-1,833
-7% -$491K 1.25% 23
2022
Q3 		$6.21M Buy
27,557
+42
+0.2% +$10.2K 1.29% 22
2022
Q2 		$6.69M Sell
27,515
-538
-2% -$132K 1.32% 14
2022
Q1 		$6.78M Buy
28,053
+365
+1% +$83.9K 1.21% 30
2021
Q4 		$6.23M Buy
27,688
+1,338
+5% +$282K 1.09% 49
2021
Q3 		$5.6M Buy
26,350
+1,457
+6% +$335K 1.11% 48
2021
Q2 		$6.07M Buy
24,893
+2,784
+13% +$685K 1.2% 33
2021
Q1 		$5.5M Buy
22,109
+655
+3% +$156K 1.19% 34
2020
Q4 		$4.93M Buy
21,454
+126
+0.6% +$29.1K 1.17% 40
2020
Q3 		$5.42M Buy
21,328
+128
+0.6% +$31.7K 1.42% 8
2020
Q2 		$5M Sell
21,200
-122
-0.6% -$27.8K 1.45% 5
2020
Q1 		$4.32M Sell
21,322
-1,182
-5% -$258K 1.47% 4
2019
Q4 		$5.42M Buy
+22,504
New +$4.96M 1.5% 6

Other funds holding AMGN

Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
Truist Financial
Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return
FFM
Forum Financial Management Lombard, Illinois $7.79B AUM 20.38% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
SP
Sarasin & Partners London, United Kingdom $8.54B AUM 9.6% 1-Year Est. Return
Retirement Systems of Alabama
Retirement Systems of Alabama Montgomery, Alabama $33.2B AUM 38.15% 1-Year Est. Return

Mattern Capital Management's AMGN Position: Q2 2026 in Review

Mattern Capital Management increased its Amgen (AMGN) stake by 17% in Q2 2026, buying an estimated $1.41M and bringing the position to 28,008 shares worth $10.1M. The position accounts for 1.18% of the portfolio, ranked #36.

Mattern Capital Management first reported a position in AMGN in Q4 2019 and has held it in 27 quarters since. The position peaked at $11.3M in Q4 2025. 1,262 funds tracked by Wall St. Rank hold AMGN as of Q2 2026.

  • Mattern Capital Management held 28,008 shares of Amgen worth $10.1M as of Q2 2026.
  • Mattern Capital Management bought 4,118 Amgen shares in Q2 2026, an estimated $1.41M.
  • Amgen made up 1.18% of Mattern Capital Management's portfolio in Q2 2026, its #36 holding.
  • Mattern Capital Management first reported a position in Amgen in Q4 2019 and has held it in 27 quarters since.
  • Mattern Capital Management's Amgen position peaked at $11.3M in Q4 2025.
  • 1,262 funds tracked by Wall St. Rank held Amgen as of Q2 2026.

Based on Mattern Capital Management's 13F filing for Q2 2026, filed 24 Jul 2026.