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Home/Hedge Funds/RTW Investments/Q4 2022

RTW Investments

Period: Q4 2022 Β· Filed: 2023-02-14
View on SEC EDGAR β†—
AUM
$4.90B
Total portfolio value
Positions
77
Reported securities
Top Holding
ALNY
8.2% $400.1M
QoQ Changes
+1 / -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 ( 2023-02-14) shown is the underlying stock price movement β€” not the derivative's P&L.
TickerIssuerNotionalPort %@ FilingNow (EOD)Since FilingAllocation
ALNYALNYLAM PHARMACEUTICALS INC$400.1M8.17%$233.59$312.78+33.9%
8.2%
RXDXPROMETHEUS BIOSCIENCES INC$369.0M7.53%β€”β€”
7.5%
RCKTROCKET PHARMACEUTICALS INC$346.1M7.07%$19.16$3.84-80.0%
7.1%
IMCRIMMUNOCORE HLDGS PLC$317.3M6.48%$55.42$32.50-41.4%
6.5%
TMOTHERMO FISHER SCIENTIFIC INC$239.8M4.90%$547.18$523.44-4.3%
4.9%
AXSMAXSOME THERAPEUTICS INC$229.9M4.69%$73.32$244.31+233.2%
4.7%
MASIMASIMO CORP$222.2M4.53%$146.03β€”
4.5%
PTCTPTC THERAPEUTICS INC$214.3M4.38%$38.16$83.31+118.3%
4.4%
RAREULTRAGENYX PHARMACEUTICAL IN$183.8M3.75%$45.52$33.47-26.5%
3.8%
ARGXARGENX SE$182.7M3.73%$373.80$939.68+151.4%
3.7%
MRTXMIRATI THERAPEUTICS INC$165.1M3.37%β€”β€”
3.4%
ESTAESTABLISHMENT LABS HLDGS INC$155.9M3.18%$62.72$89.25+42.3%
3.2%
PENPENUMBRA INC$155.4M3.17%$221.20$318.57+44.0%
3.2%
CLDXCELLDEX THERAPEUTICS INC NEW$137.5M2.81%$43.39$38.37-11.6%
2.8%
RNAMAVIDITY BIOSCIENCES INC$124.4M2.54%β€”β€”
2.5%
CYTKCYTOKINETICS INC$118.0M2.41%$44.35$86.49+95.0%
2.4%
ILMNILLUMINA INC$114.1M2.33%$195.40$188.68-3.4%
2.3%
NTRANATERA INC$104.8M2.14%$38.49$279.32+625.7%
2.1%
VCELVERICEL CORP$81.7M1.67%$25.13$46.98+87.0%
1.7%
CUTRQCUTERA INC$79.5M1.62%β€”β€”
1.6%
ACADACADIA PHARMACEUTICALS INC$58.4M1.19%$16.32$25.97+59.1%
1.2%
GMEDGLOBUS MED INC$55.5M1.13%$73.16$80.12+9.5%
1.1%
AXNXAXONICS INC$55.3M1.13%β€”β€”
1.1%
VTYXVENTYX BIOSCIENCES INC$50.9M1.04%β€”β€”
1.0%
RGNXREGENXBIO INC$41.9M0.85%$22.25$13.28-40.3%
0.8%
AVDLXXXXAVADEL PHARMACEUTICALS PLC$41.1M0.84%β€”β€”
0.8%
PTGXPROTAGONIST THERAPEUTICS INC$39.2M0.80%$10.78$131.62+1121.0%
0.8%
ACETADICET BIO INC$37.9M0.77%$137.12$9.00-93.4%
0.8%
PMVPPMV PHARMACEUTICALS INC$37.9M0.77%$8.48$1.22-85.6%
0.8%
TARSTARSUS PHARMACEUTICALS INC$37.4M0.76%$14.42$65.44+353.8%
0.8%

Quarter-on-Quarter Activity

Q4 2022 vs. Q3 2022

New Positions (1)

TickerIssuerNotional
TERNTERNS PHARMACEUTICALS INC$10.2M

Exited Positions (8)

TickerIssuerNotional
TSVT2SEVENTY BIO INC$17.9M
TNDMTANDEM DIABETES CARE INC$15.4M
RCORRENOVACOR INC$7.6M
RACBRESEARCH ALLIANCE CORP II$6.3M
BLSABCLS ACQUISITION CORP$6.1M
FVAM5 01 ACQUISITION CORP$3.9M
LABPLANDOS BIOPHARMA INC$2.6M
EPIXESSA PHARMA INC$2.4M

Increased (8)

TickerIssuerNotionalShares Ξ”Since Filing
IMTXIMMATICS N.V$3.9M+141.4%
MRTXMIRATI THERAPEUTICS INC$33.6M+93.5%
RAREULTRAGENYX PHARMACEUTICAL IN$86.1M+68.1%-26.5%
AXSMAXSOME THERAPEUTICS INC$145.9M+58.4%+233.2%
IMUXIMMUNIC INC$-3.3M+39.8%
TXG10X GENOMICS INC$13.6M+36.4%
XGNEXAGEN INC$0.4M+30.1%
TARSTARSUS PHARMACEUTICALS INC$2.7M+25.9%+353.8%

Trimmed (8)

TickerIssuerNotionalShares Ξ”Since Filing
ISEEIVERIC BIO INC$-47.5M-77.3%
GHGUARDANT HEALTH INC$-27.4M-40.6%
SNCESCIENCE 37 HOLDINGS INC$-5.9M-40.3%
LUNGPULMONX CORP$-5.4M-40.3%
RLMDRELMADA THERAPEUTICS INC$-90.7M-21.8%
NYXHNYXOAH S A$-0.8M-21.7%
PTGXPROTAGONIST THERAPEUTICS INC$4.0M-14.0%+1121.0%
DMTKQDERMTECH INC$-7.5M-12.8%
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