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Siren LLC’s Kymera Therapeutics KYMR Stock Holding History

Siren LLC’s Portfolio KYMR Stock Details KYMR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$337M Sell
2,935,830
-251,000
-8% -$21.6M 6.81% 2
2026
Q1 		$265M Sell
3,186,830
-100,000
-3% -$7.92M 7.36% 2
2025
Q4 		$256M Sell
3,286,830
-141,320
-4% -$9.54M 7.63% 2
2025
Q3 		$194M Hold
3,428,150
– – 7.59% 2
2025
Q2 		$150M Buy
3,428,150
+187,837
+6% +$6.47M 7.74% 2
2025
Q1 		$88.7M Buy
3,240,313
+270,580
+9% +$9.86M 5% 3
2024
Q4 		$119M Hold
2,969,733
– – 5.28% 3
2024
Q3 		$141M Buy
+2,969,733
New +$131M 7.03% 1

Other funds holding KYMR

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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

Siren LLC's KYMR Position: Q2 2026 in Review

Siren LLC reduced its Kymera Therapeutics (KYMR) stake by 7.9% in Q2 2026, selling an estimated $21.6M and leaving 2,935,830 shares worth $337M. The position accounts for 6.81% of the portfolio, ranked #2.

Siren LLC first reported a position in KYMR in Q3 2024 and has held it in 8 quarters since. 275 funds tracked by Wall St. Rank hold KYMR as of Q2 2026.

  • Siren LLC held 2,935,830 shares of Kymera Therapeutics worth $337M as of Q2 2026.
  • Siren LLC sold 251,000 Kymera Therapeutics shares in Q2 2026, an estimated $21.6M.
  • Kymera Therapeutics made up 6.81% of Siren LLC's portfolio in Q2 2026, its #2 holding.
  • Siren LLC first reported a position in Kymera Therapeutics in Q3 2024 and has held it in 8 quarters since.
  • 275 funds tracked by Wall St. Rank held Kymera Therapeutics as of Q2 2026.

Based on Siren LLC's 13F filing for Q2 2026, filed 13 Aug 2026.