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Home/Hedge Funds/RTW Investments/Q4 2023

RTW Investments

Period: Q4 2023 Β· Filed: 2024-02-14
View on SEC EDGAR β†—
AUM
$6.40B
Total portfolio value
Positions
64
Reported securities
Top Holding
RCKT
8.3% $530.1M
QoQ Changes
+8 / -8
new Β· exited
⚠️13F Filing Disclosure

AUM figures shown are calculated by summing the reported market value of all positions in SEC 13F-HR filings β€” not the fund's actual assets under management.

  • Excludes cash, bonds, private equity, short positions, and foreign-listed stocks not required to be reported.
  • For PUT and CALL options, the reported Value is the notional value of the underlying shares β€” not the option premium paid. This significantly overstates the actual capital at risk.
  • Actual fund AUM is typically higher and includes strategies, instruments, and positions that never appear in a 13F.
  • 13F filings cover institutional managers with β‰₯$100M in 13F securities. Positions reflect end-of-quarter holdings, disclosed up to 45 days after the period ends.

Data sourced from SEC EDGAR. This tracker is for informational purposes only and does not constitute investment advice.

Portfolio Holdings

Top 30 positions

⚠️ Performance % calculated from filing date ( 2024-02-14) shown is the underlying stock price movement β€” not the derivative's P&L.
TickerIssuerNotionalPort %@ FilingNow (EOD)Since FilingAllocation
RCKTROCKET PHARMACEUTICALS INC$530.1M8.28%$29.50$3.84-87.0%
8.3%
IMCRIMMUNOCORE HLDGS PLC$416.5M6.51%$71.64$32.50-54.6%
6.5%
MRTXMIRATI THERAPEUTICS INC$397.6M6.21%β€”β€”
6.2%
AXSMAXSOME THERAPEUTICS INC$357.3M5.58%$77.06$244.31+217.0%
5.6%
ACADACADIA PHARMACEUTICALS INC$352.4M5.50%$30.86$25.97-15.8%
5.5%
RAREULTRAGENYX PHARMACEUTICAL IN$329.3M5.14%$48.17$33.47-30.5%
5.1%
ALNYALNYLAM PHARMACEUTICALS INC$314.0M4.91%$194.93$312.78+60.5%
4.9%
ARGXARGENX SE$253.8M3.96%$381.00$939.68+146.6%
4.0%
BRKRBRUKER CORP$245.7M3.84%$71.56$61.64-13.9%
3.8%
CYTKCYTOKINETICS INC$210.8M3.29%$84.12$86.49+2.8%
3.3%
PTCTPTC THERAPEUTICS INC$204.6M3.20%$28.04$83.31+197.1%
3.2%
MDGLMADRIGAL PHARMACEUTICALS INC$188.6M2.95%$226.86$528.10+132.8%
3.0%
ARVNARVINAS INC$173.4M2.71%$41.50$8.39-79.8%
2.7%
MASIMASIMO CORP$171.4M2.68%$114.61β€”
2.7%
PENPENUMBRA INC$166.7M2.60%$244.77$318.57+30.1%
2.6%
NTRANATERA INC$162.4M2.54%$61.92$279.32+351.1%
2.5%
CLDXCELLDEX THERAPEUTICS INC NEW$137.3M2.15%$40.41$38.37-5.0%
2.1%
PTGXPROTAGONIST THERAPEUTICS INC$121.9M1.90%$23.42$131.62+462.0%
1.9%
CRGXCARGO THERAPEUTICS INC$119.8M1.87%β€”β€”
1.9%
VCELVERICEL CORP$114.4M1.79%$34.88$46.98+34.7%
1.8%
SAGESAGE THERAPEUTICS INC$112.6M1.76%β€”β€”
1.8%
ALKSALKERMES PLC$108.2M1.69%$28.62$54.58+90.7%
1.7%
AVDLXXXXAVADEL PHARMACEUTICALS PLC$98.1M1.53%β€”β€”
1.5%
TXG10X GENOMICS INC$86.7M1.35%$54.30$39.01-28.2%
1.4%
AKROAKERO THERAPEUTICS INC$83.9M1.31%β€”β€”
1.3%
MRUSMERUS N V$65.3M1.02%β€”β€”
1.0%
ESTAESTABLISHMENT LABS HLDGS INC$64.6M1.01%$26.59$89.25+235.7%
1.0%
TARSTARSUS PHARMACEUTICALS INC$63.8M1.00%$20.16$65.44+224.6%
1.0%
ETNB89BIO INC$62.3M0.97%β€”β€”
1.0%
RNAMAVIDITY BIOSCIENCES INC$60.5M0.95%β€”β€”
0.9%

Quarter-on-Quarter Activity

Q4 2023 vs. Q3 2023

New Positions (8)

TickerIssuerNotionalSince Filing
ARVNARVINAS INC$173.4M-79.8%
CRGXCARGO THERAPEUTICS INC$119.8M
AKROAKERO THERAPEUTICS INC$83.9M
ETNB89BIO INC$62.3M
SYRESPYRE THERAPEUTICS INC$48.0M
DHRDANAHER CORPORATION$27.4M
RDNTRADNET INC$23.1M
SWTXSPRINGWORKS THERAPEUTICS INC$22.8M

Exited Positions (8)

TickerIssuerNotional
MLTXMOONLAKE IMMUNOTHERAPEUTICS$28.5M
ILMNILLUMINA INC$25.8M
AXNXAXONICS INC$24.8M
SCPHSCPHARMACEUTICALS INC$23.5M
PMVPPMV PHARMACEUTICALS INC$14.6M
OMOUTSET MED INC$8.8M
MLYSMINERALYS THERAPEUTICS INC$8.8M
SYKSTRYKER CORPORATION$7.7M

Increased (8)

TickerIssuerNotionalShares Ξ”Since Filing
ALKSALKERMES PLC$83.3M+338.8%+90.7%
MDGLMADRIGAL PHARMACEUTICALS INC$143.4M+163.4%+132.8%
URGNUROGEN PHARMA LTD$13.9M+101.4%
IMTXIMMATICS N.V$5.8M+75.7%
ARGXARGENX SE$4.5M+31.5%+146.6%
RAREULTRAGENYX PHARMACEUTICAL IN$136.7M+27.4%-30.5%
MRUSMERUS N V$18.2M+18.9%
TARSTARSUS PHARMACEUTICALS INC$12.6M+9.4%+224.6%

Trimmed (8)

TickerIssuerNotionalShares Ξ”Since Filing
TMOTHERMO FISHER SCIENTIFIC INC$-120.4M-82.8%
SIENQSIENTRA INC$-0.8M-73.4%
SWAVSHOCKWAVE MED INC$-12.3M-47.5%
APYXAPYX MEDICAL CORPORATION$-3.0M-42.3%
ROIVROIVANT SCIENCES LTD$-1.8M-6.3%
FULCFULCRUM THERAPEUTICS INC$11.1M-6.0%
STOKSTOKE THERAPEUTICS INC$4.4M-5.9%
ACADACADIA PHARMACEUTICALS INC$111.1M-2.8%-15.8%
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