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RYTMRYTM
Showing 8 of 28 quarters

Position history for PRIMECAP MANAGEMENT CO/CA/PRIMECAP MANAGEMENT CO/CA/'s holdings in RHYTHM PHARMACEUTICALS INC

Yes. Primecap holds 3,168,853 shares of RYTM (Rhythm Pharmaceuticals), worth $351.8M, as of its Q2 2026 13F filing. It reduced the position by 248,656 shares (-7.3%) from Q1 2026. Primecap has held RYTM since Q3 2019, across 28 quarterly 13F filings. RYTM is 0.2% of Primecap's reported 13F portfolio.

Current Value

$351.8M

Current Shares

3.2M

Total Value Change

-$26.3M

Total Shares Change

-4M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
3.2M
-7.3%
$351.8M0.2%$111.03
0
2026-Q1
Decreased
3.4M
-1.8%
$297.2M0.2%$86.97
0
2025-Q4
Decreased
3.5M
-18.4%
$372.4M0.3%$107.04
0
2025-Q3
Decreased
4.3M
-12.6%
$430.5M0.3%$100.99
0
2025-Q2
Decreased
4.9M
-15.7%
$308.2M0.2%$63.19
0
2025-Q1
Decreased
5.8M
-11.9%
$306.6M0.3%$52.97
0
2024-Q4
Decreased
6.6M
-8.9%
$367.9M0.3%$55.98
0
2024-Q3
Decreased
7.2M
-1.3%
$378.1M0.3%$52.39
0

Other major holders of RYTM: RA CAPITAL MANAGEMENT, L.P., BlackRock, Inc., VANGUARD GROUP INC

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