BlackRock’s Rhythm Pharmaceuticals RYTM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$542M Sell
6,237,151
-60,183
-1% -$5.85M 0.01% 1047
2025
Q4
$674M Sell
6,297,334
-4,881
-0.1% -$518K 0.01% 904
2025
Q3
$636M Buy
6,302,215
+34,677
+0.6% +$3.22M 0.01% 928
2025
Q2
$396M Sell
6,267,538
-587,217
-9% -$36M 0.01% 1203
2025
Q1
$363M Sell
6,854,755
-95,960
-1% -$5.32M 0.01% 1228
2024
Q4
$389M Buy
6,950,715
+61,457
+0.9% +$3.39M 0.01% 1242
2024
Q3
$361M Buy
6,889,258
+147,335
+2% +$7.06M 0.01% 1300
2024
Q2
$277M Buy
6,741,923
+212,277
+3% +$8.47M 0.01% 1404
2024
Q1
$283M Buy
6,529,646
+177,896
+3% +$7.79M 0.01% 1416
2023
Q4
$292M Buy
6,351,750
+151,868
+2% +$4.79M 0.01% 1386
2023
Q3
$142M Sell
6,199,882
-65,123
-1% -$1.46M ﹤0.01% 1776
2023
Q2
$103M Buy
6,265,005
+2,484,406
+66% +$44.8M ﹤0.01% 2030
2023
Q1
$67.4M Buy
3,780,599
+56,885
+2% +$1.43M ﹤0.01% 2265
2022
Q4
$108M Buy
3,723,714
+186,215
+5% +$4.79M ﹤0.01% 1932
2022
Q3
$86.7M Buy
3,537,499
+2,359,924
+200% +$43.9M ﹤0.01% 2063
2022
Q2
$4.89M Sell
1,177,575
-2,106,530
-64% -$11.5M ﹤0.01% 3828
2022
Q1
$37.8M Sell
3,284,105
-43,956
-1% -$386K ﹤0.01% 2745
2021
Q4
$33.2M Sell
3,328,061
-33,925
-1% -$381K ﹤0.01% 2956
2021
Q3
$43.9M Buy
3,361,986
+26,325
+0.8% +$402K ﹤0.01% 2750
2021
Q2
$65.3M Buy
3,335,661
+190,301
+6% +$3.95M ﹤0.01% 2522
2021
Q1
$66.9M Buy
3,145,360
+414,254
+15% +$12M ﹤0.01% 2431
2020
Q4
$81.2M Buy
2,731,106
+91,754
+3% +$2.33M ﹤0.01% 2200
2020
Q3
$57.2M Sell
2,639,352
-156,489
-6% -$3.59M ﹤0.01% 2213
2020
Q2
$62.3M Buy
2,795,841
+298,715
+12% +$5.82M ﹤0.01% 2126
2020
Q1
$38M Sell
2,497,126
-57,640
-2% -$1.03M ﹤0.01% 2236
2019
Q4
$58.7M Buy
2,554,766
+615,615
+32% +$13.7M ﹤0.01% 2259
2019
Q3
$41.9M Buy
1,939,151
+31,093
+2% +$667K ﹤0.01% 2402
2019
Q2
$42M Buy
1,908,058
+380,085
+25% +$9.6M ﹤0.01% 2427
2019
Q1
$41.9M Sell
1,527,973
-26,733
-2% -$768K ﹤0.01% 2373
2018
Q4
$41.8M Buy
1,554,706
+413,203
+36% +$11.4M ﹤0.01% 2342
2018
Q3
$33.3M Buy
1,141,503
+393,834
+53% +$12.4M ﹤0.01% 2595
2018
Q2
$23.4M Buy
747,669
+361,867
+94% +$9.89M ﹤0.01% 2768
2018
Q1
$7.68M Buy
385,802
+25,731
+7% +$683K ﹤0.01% 3248
2017
Q4
$10.5M Buy
+360,071
New +$9.52M ﹤0.01% 3122

Other funds holding RYTM

BlackRock's RYTM Position: Q1 2026 in Review

BlackRock reduced its Rhythm Pharmaceuticals (RYTM) stake by 0.96% in Q1 2026, selling an estimated $5.85M and leaving 6,237,151 shares worth $542M. The position accounts for 0.01% of the portfolio, ranked #1047.

BlackRock first reported a position in RYTM in Q4 2017 and has held it in 34 quarters since. The position peaked at $674M in Q4 2025. 285 funds tracked by Wall St. Rank hold RYTM as of Q1 2026.

  • BlackRock held 6,237,151 shares of Rhythm Pharmaceuticals worth $542M as of Q1 2026.
  • BlackRock sold 60,183 Rhythm Pharmaceuticals shares in Q1 2026, an estimated $5.85M.
  • Rhythm Pharmaceuticals made up 0.01% of BlackRock's portfolio in Q1 2026, its #1047 holding.
  • BlackRock first reported a position in Rhythm Pharmaceuticals in Q4 2017 and has held it in 34 quarters since.
  • BlackRock's Rhythm Pharmaceuticals position peaked at $674M in Q4 2025.
  • 285 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.