Simplex Trading
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Simplex Trading’s Rhythm Pharmaceuticals RYTM Stock Holding History

Simplex Trading’s Portfolio RYTM Stock Details RYTM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$699K Buy
6,300
+6,100
+3,050% +$552K ﹤0.01% 3200
2026
Q1 		$17.4K Sell
200
-4,700
-96% -$457K ﹤0.01% 6885
2025
Q4 		$524K Buy
4,900
+4,600
+1,533% +$488K ﹤0.01% 3261
2025
Q3 		$30K Sell
300
-5,800
-95% -$538K ﹤0.01% 6989
2025
Q2 		$385K Buy
6,100
+5,000
+455% +$306K ﹤0.01% 3788
2025
Q1 		$58K Sell
1,100
-3,800
-78% -$211K ﹤0.01% 5613
2024
Q4 		$274K Sell
4,900
-1,100
-18% -$60.8K ﹤0.01% 4164
2024
Q3 		$314K Buy
6,000
+3,800
+173% +$182K ﹤0.01% 4077
2024
Q2 		$90K Sell
2,200
-1,400
-39% -$55.9K ﹤0.01% 5489
2024
Q1 		$155K Sell
3,600
-2,500
-41% -$109K ﹤0.01% 5115
2023
Q4 		$280K Buy
6,100
+2,900
+91% +$91.5K ﹤0.01% 4301
2023
Q3 		$73K Buy
3,200
+500
+19% +$11.2K ﹤0.01% 5432
2023
Q2 		$44K Sell
2,700
-5,100
-65% -$92.1K ﹤0.01% 5969
2023
Q1 		$139K Buy
7,800
+2,600
+50% +$65.3K ﹤0.01% 4771
2022
Q4 		$151K Sell
5,200
-19,500
-79% -$501K ﹤0.01% 4579
2022
Q3 		$605K Sell
24,700
-2,000
-7% -$37.2K ﹤0.01% 3249
2022
Q2 		$110K Buy
26,700
+21,800
+445% +$119K ﹤0.01% 5458
2022
Q1 		$56K Sell
4,900
-900
-16% -$7.9K ﹤0.01% 6988
2021
Q4 		$57K Sell
5,800
-5,100
-47% -$57.3K ﹤0.01% 7088
2021
Q3 		$225K Hold
10,900
– – ﹤0.01% 5412
2021
Q2 		$213K Buy
10,900
+10,798
+10,586% +$224K ﹤0.01% 5578
2021
Q1 		$216K Sell
102
-168
-62% -$4.87K ﹤0.01% 4627
2020
Q4 		$802K Buy
270
+267
+8,900% +$6.79K ﹤0.01% 2831
2020
Q3 		$6K Buy
+3
New +$69 ﹤0.01% 7045
2020
Q2 		– Sell
-13
Closed -$19K – 8259
2020
Q1 		$19K Buy
+13
New +$233 ﹤0.01% 6005

Other funds holding RYTM

RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Simplex Trading's RYTM Position: Q2 2026 in Review

Simplex Trading opened a new position in Rhythm Pharmaceuticals (RYTM) in Q2 2026: 3,435 shares worth $381K. The stake represents ﹤0.01% of the portfolio and ranks #3950 among its holdings. This is a return to the name: Simplex Trading previously reported a position in RYTM as recently as Q4 2024.

Simplex Trading first reported a position in RYTM in Q1 2020 and has held it in 12 quarters since. 304 funds tracked by Wall St. Rank hold RYTM as of Q2 2026.

  • Simplex Trading held 3,435 shares of Rhythm Pharmaceuticals worth $381K as of Q2 2026.
  • Rhythm Pharmaceuticals was a new Simplex Trading position in Q2 2026.
  • Rhythm Pharmaceuticals made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #3950 holding.
  • Simplex Trading first reported a position in Rhythm Pharmaceuticals in Q1 2020 and has held it in 12 quarters since.
  • 304 funds tracked by Wall St. Rank held Rhythm Pharmaceuticals as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.