Jim Simons’s BioMarin Pharmaceuticals BMRN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$57.9M Sell
1,024,871
-300,100
-23% -$17.5M 0.09% 281
2025
Q4
$78.7M Sell
1,324,971
-568,600
-30% -$31M 0.12% 189
2025
Q3
$103M Buy
1,893,571
+86,800
+5% +$4.96M 0.14% 160
2025
Q2
$99.3M Buy
1,806,771
+911,000
+102% +$53.6M 0.13% 159
2025
Q1
$63.3M Buy
895,771
+459,900
+106% +$30.9M 0.1% 252
2024
Q4
$28.6M Buy
435,871
+17,000
+4% +$1.14M 0.04% 502
2024
Q3
$29.4M Buy
418,871
+302,671
+260% +$25.3M 0.04% 501
2024
Q2
$9.57M Sell
116,200
-425,871
-79% -$35.5M 0.02% 952
2024
Q1
$47.3M Buy
542,071
+155,400
+40% +$13.9M 0.07% 320
2023
Q4
$37.3M Sell
386,671
-195,100
-34% -$17.3M 0.06% 383
2023
Q3
$51.5M Sell
581,771
-150,867
-21% -$13.4M 0.09% 252
2023
Q2
$63.5M Sell
732,638
-48,433
-6% -$4.56M 0.09% 246
2023
Q1
$76M Buy
781,071
+150,800
+24% +$15.6M 0.1% 239
2022
Q4
$65.2M Sell
630,271
-114,200
-15% -$10.7M 0.09% 254
2022
Q3
$63.1M Buy
744,471
+9,708
+1% +$864K 0.09% 267
2022
Q2
$60.9M Buy
734,763
+243,592
+50% +$19.4M 0.07% 314
2022
Q1
$37.9M Sell
491,171
-159,889
-25% -$13.4M 0.04% 443
2021
Q4
$57.5M Buy
651,060
+269,589
+71% +$22.2M 0.07% 293
2021
Q3
$29.5M Buy
381,471
+91,500
+32% +$7.22M 0.04% 493
2021
Q2
$24.2M Sell
289,971
-75,600
-21% -$5.99M 0.03% 647
2021
Q1
$27.6M Buy
+365,571
New +$29.9M 0.03% 604
2020
Q2
Sell
-19,100
Closed -$1.61M 3445
2020
Q1
$1.61M Sell
19,100
-183,371
-91% -$15.8M ﹤0.01% 2171
2019
Q4
$17.1M Sell
202,471
-353,600
-64% -$26.7M 0.01% 1091
2019
Q3
$37.5M Buy
556,071
+18,700
+3% +$1.44M 0.03% 613
2019
Q2
$46M Buy
537,371
+215,400
+67% +$18.4M 0.04% 529
2019
Q1
$28.6M Buy
321,971
+278,400
+639% +$25.8M 0.03% 781
2018
Q4
$3.71M Sell
43,571
-163,400
-79% -$15.5M ﹤0.01% 1909
2018
Q3
$20.1M Buy
206,971
+178,500
+627% +$17.8M 0.02% 927
2018
Q2
$2.68M Sell
28,471
-100,100
-78% -$8.77M ﹤0.01% 2124
2018
Q1
$10.4M Sell
128,571
-132,800
-51% -$11.4M 0.01% 1339
2017
Q4
$23.3M Sell
261,371
-58,900
-18% -$5.12M 0.03% 845
2017
Q3
$29.8M Buy
320,271
+193,400
+152% +$17.1M 0.04% 666
2017
Q2
$11.5M Buy
+126,871
New +$11.5M 0.01% 1190
2017
Q1
Sell
-39,371
Closed -$3.26M 3230
2016
Q4
$3.26M Buy
+39,371
New +$3.39M 0.01% 1949
2016
Q2
Sell
-132,071
Closed -$10.9M 3333
2016
Q1
$10.9M Sell
132,071
-61,500
-32% -$5M 0.02% 1082
2015
Q4
$20.3M Sell
193,571
-69,000
-26% -$7.21M 0.04% 538
2015
Q3
$27.7M Buy
262,571
+138,900
+112% +$18.6M 0.07% 368
2015
Q2
$16.9M Buy
+123,671
New +$15.3M 0.04% 638
2014
Q1
Sell
-280,071
Closed -$19.7M 2828
2013
Q4
$19.7M Buy
+280,071
New +$19M 0.05% 472

Other funds holding BMRN

Jim Simons's BMRN Position: Q1 2026 in Review

Jim Simons reduced its BioMarin Pharmaceuticals (BMRN) stake by 23% in Q1 2026, selling an estimated $17.5M and leaving 1,024,871 shares worth $57.9M. The position accounts for 0.09% of the portfolio, ranked #281.

Jim Simons first reported a position in BMRN in Q4 2013 and has held it in 39 quarters since. The position peaked at $103M in Q3 2025. 556 funds tracked by Wall St. Rank hold BMRN as of Q1 2026.

  • Jim Simons held 1,024,871 shares of BioMarin Pharmaceuticals worth $57.9M as of Q1 2026.
  • Jim Simons sold 300,100 BioMarin Pharmaceuticals shares in Q1 2026, an estimated $17.5M.
  • BioMarin Pharmaceuticals made up 0.09% of Jim Simons's portfolio in Q1 2026, its #281 holding.
  • Jim Simons first reported a position in BioMarin Pharmaceuticals in Q4 2013 and has held it in 39 quarters since.
  • Jim Simons's BioMarin Pharmaceuticals position peaked at $103M in Q3 2025.
  • 556 funds tracked by Wall St. Rank held BioMarin Pharmaceuticals as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.