Marshall Wace’s Amgen AMGN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $36M | Sell |
99,402
-217,515
| -69% | -$74.5M | 0.03% | 489 |
|
|
2026
Q1 | $112M | Buy |
316,917
+218,065
| +221% | +$77.7M | 0.11% | 150 |
|
|
2025
Q4 | $32.4M | Buy |
+98,852
| New | +$31.4M | 0.03% | 471 |
|
|
2025
Q2 | – | Sell |
-178,257
| Closed | -$55.5M | – | 2665 |
|
|
2025
Q1 | $55.5M | Buy |
178,257
+172,186
| +2,836% | +$50.8M | 0.07% | 248 |
|
|
2024
Q4 | $1.58M | Sell |
6,071
-699,040
| -99% | -$207M | ﹤0.01% | 1538 |
|
|
2024
Q3 | $227M | Buy |
705,111
+48,613
| +7% | +$15.9M | 0.28% | 55 |
|
|
2024
Q2 | $205M | Buy |
656,498
+173,058
| +36% | +$50.8M | 0.27% | 56 |
|
|
2024
Q1 | $137M | Buy |
483,440
+346,399
| +253% | +$101M | 0.21% | 89 |
|
|
2023
Q4 | $39.5M | Sell |
137,041
-1,411,187
| -91% | -$385M | 0.07% | 290 |
|
|
2023
Q3 | $416M | Buy |
1,548,228
+1,332,231
| +617% | +$332M | 0.84% | 14 |
|
|
2023
Q2 | $48M | Buy |
215,997
+72,266
| +50% | +$16.8M | 0.09% | 225 |
|
|
2023
Q1 | $34.7M | Buy |
143,731
+84,380
| +142% | +$20.7M | 0.07% | 298 |
|
|
2022
Q4 | $15.6M | Sell |
59,351
-20,213
| -25% | -$5.42M | 0.04% | 571 |
|
|
2022
Q3 | $17.9M | Sell |
79,564
-178,664
| -69% | -$43.3M | 0.04% | 515 |
|
|
2022
Q2 | $62.8M | Sell |
258,228
-61,702
| -19% | -$15.1M | 0.13% | 157 |
|
|
2022
Q1 | $77.4M | Buy |
319,930
+215,015
| +205% | +$49.4M | 0.15% | 148 |
|
|
2021
Q4 | $23.6M | Buy |
104,915
+102,066
| +3,583% | +$21.5M | 0.04% | 434 |
|
|
2021
Q3 | $606K | Sell |
2,849
-40,020
| -93% | -$9.21M | ﹤0.01% | 2300 |
|
|
2021
Q2 | $10.4M | Sell |
42,869
-19,556
| -31% | -$4.81M | 0.05% | 465 |
|
|
2021
Q1 | $15.5M | Buy |
62,425
+51,049
| +449% | +$12.2M | 0.07% | 282 |
|
|
2020
Q4 | $2.62M | Buy |
11,376
+5,686
| +100% | +$1.31M | 0.01% | 840 |
|
|
2020
Q3 | $1.45M | Sell |
5,690
-65,905
| -92% | -$16.3M | 0.01% | 896 |
|
|
2020
Q2 | $16.9M | Buy |
71,595
+66,642
| +1,345% | +$15.2M | 0.12% | 183 |
|
|
2020
Q1 | $1M | Buy |
+4,953
| New | +$1.08M | 0.01% | 802 |
|
|
2019
Q4 | – | Sell |
-723
| Closed | -$140K | – | 1668 |
|
|
2019
Q3 | $140K | Sell |
723
-25,201
| -97% | -$4.84M | ﹤0.01% | 1345 |
|
|
2019
Q2 | $4.78M | Buy |
+25,924
| New | +$4.64M | 0.04% | 502 |
|
|
2017
Q2 | – | Sell |
-5,178
| Closed | -$849K | – | 307 |
|
|
2017
Q1 | $849K | Sell |
5,178
-169,482
| -97% | -$28.2M | 0.04% | 216 |
|
|
2016
Q4 | $25.5M | Buy |
174,660
+136,803
| +361% | +$20.6M | 0.17% | 156 |
|
|
2016
Q3 | $6.32M | Sell |
37,857
-50,885
| -57% | -$8.6M | 0.04% | 364 |
|
|
2016
Q2 | $13.5M | Buy |
88,742
+80,030
| +919% | +$12.4M | 0.11% | 197 |
|
|
2016
Q1 | $1.31M | Sell |
8,712
-403,588
| -98% | -$60M | 0.01% | 652 |
|
|
2015
Q4 | $66.9M | Buy |
412,300
+407,999
| +9,486% | +$64.1M | 0.63% | 29 |
|
|
2015
Q3 | $595K | Sell |
4,301
-50,976
| -92% | -$8.04M | 0.01% | 712 |
|
|
2015
Q2 | $8.49M | Buy |
+55,277
| New | +$8.85M | 0.11% | 205 |
|
|
2015
Q1 | – | Sell |
-62,593
| Closed | -$9.97M | – | 786 |
|
|
2014
Q4 | $9.97M | Sell |
62,593
-199,926
| -76% | -$31.2M | 0.13% | 194 |
|
|
2014
Q3 | $36.9M | Buy |
262,519
+190,553
| +265% | +$24.9M | 0.53% | 41 |
|
|
2014
Q2 | $8.52M | Buy |
+71,966
| New | +$8.33M | 0.13% | 193 |
|
|
2013
Q2 | $217K | Buy |
+2,200
| New | +$228K | 0.01% | 106 |
|
Other funds holding AMGN
Marshall Wace's AMGN Position: Q2 2026 in Review
Marshall Wace reduced its Amgen (AMGN) stake by 69% in Q2 2026, selling an estimated $74.5M and leaving 99,402 shares worth $36M. The position accounts for 0.03% of the portfolio, ranked #489.
Marshall Wace first reported a position in AMGN in Q2 2013 and has held it in 38 quarters since. The position peaked at $416M in Q3 2023. 3,137 funds tracked by Wall St. Rank hold AMGN as of Q2 2026.
- Marshall Wace held 99,402 shares of Amgen worth $36M as of Q2 2026.
- Marshall Wace sold 217,515 Amgen shares in Q2 2026, an estimated $74.5M.
- Amgen made up 0.03% of Marshall Wace's portfolio in Q2 2026, its #489 holding.
- Marshall Wace first reported a position in Amgen in Q2 2013 and has held it in 38 quarters since.
- Marshall Wace's Amgen position peaked at $416M in Q3 2023.
- 3,137 funds tracked by Wall St. Rank held Amgen as of Q2 2026.
Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.