Tudor Investment Corp
RARE icon

Tudor Investment Corp’s Ultragenyx Pharmaceutical RARE Stock Holding History

Tudor Investment Corp’s Portfolio RARE Stock Details RARE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.12M Buy
53,517
+40,101
+299% +$903K ﹤0.01% 2284
2025
Q4 		$309K Sell
13,416
-45,862
-77% -$1.51M ﹤0.01% 3029
2025
Q3 		$1.78M Buy
59,278
+6,139
+12% +$184K ﹤0.01% 1877
2025
Q2 		$1.93M Buy
53,139
+30,665
+136% +$1.11M ﹤0.01% 1688
2025
Q1 		$814K Buy
+22,474
New +$935K ﹤0.01% 1949
2024
Q4 		– Sell
-54,496
Closed -$3.03M – 3418
2024
Q3 		$3.03M Buy
54,496
+19,933
+58% +$1.02M 0.01% 969
2024
Q2 		$1.42M Buy
+34,563
New +$1.48M 0.01% 1269
2023
Q3 		– Sell
-36,919
Closed -$1.7M – 2760
2023
Q2 		$1.7M Sell
36,919
-548
-1% -$25.4K 0.02% 979
2023
Q1 		$1.5M Buy
+37,467
New +$1.61M 0.02% 955
2022
Q4 		– Sell
-35,729
Closed -$1.48M – 2773
2022
Q3 		$1.48M Buy
35,729
+19,338
+118% +$994K 0.03% 674
2022
Q2 		$978K Buy
+16,391
New +$1.01M 0.03% 898
2022
Q1 		– Sell
-4,430
Closed -$373K – 2554
2021
Q4 		$373K Sell
4,430
-31,359
-88% -$2.55M 0.01% 1685
2021
Q3 		$3.23M Buy
35,789
+19,932
+126% +$1.8M 0.05% 444
2021
Q2 		$1.51M Buy
+15,857
New +$1.65M 0.03% 677
2021
Q1 		– Sell
-17,712
Closed -$2.45M – 1800
2020
Q4 		$2.45M Buy
17,712
+1,727
+11% +$205K 0.07% 342
2020
Q3 		$1.31M Buy
15,985
+5,318
+50% +$441K 0.06% 471
2020
Q2 		$834K Buy
+10,667
New +$706K 0.04% 534
2019
Q4 		– Sell
-14,214
Closed -$608K – 1342
2019
Q3 		$608K Buy
+14,214
New +$772K 0.02% 654
2017
Q2 		– Sell
-6,343
Closed -$430K – 1314
2017
Q1 		$430K Buy
+6,343
New +$483K 0.01% 768
2015
Q4 		– Sell
-2,441
Closed -$235K – 1797
2015
Q3 		$235K Buy
+2,441
New +$279K 0.01% 1244

Other funds holding RARE

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
SI
Sofinnova Investments Menlo Park, California $2.63B AUM 117.41% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BG
Bellevue Group Kuesnacht, Switzerland $4.2B AUM 54.85% 1-Year Est. Return

Tudor Investment Corp's RARE Position: Q1 2026 in Review

Tudor Investment Corp increased its Ultragenyx Pharmaceutical (RARE) stake by 299% in Q1 2026, buying an estimated $903K and bringing the position to 53,517 shares worth $1.12M. The position accounts for ﹤0.01% of the portfolio, ranked #2284.

Tudor Investment Corp first reported a position in RARE in Q3 2015 and has held it in 20 quarters since. The position peaked at $3.23M in Q3 2021. 295 funds tracked by Wall St. Rank hold RARE as of Q1 2026.

  • Tudor Investment Corp held 53,517 shares of Ultragenyx Pharmaceutical worth $1.12M as of Q1 2026.
  • Tudor Investment Corp bought 40,101 Ultragenyx Pharmaceutical shares in Q1 2026, an estimated $903K.
  • Ultragenyx Pharmaceutical made up ﹤0.01% of Tudor Investment Corp's portfolio in Q1 2026, its #2284 holding.
  • Tudor Investment Corp first reported a position in Ultragenyx Pharmaceutical in Q3 2015 and has held it in 20 quarters since.
  • Tudor Investment Corp's Ultragenyx Pharmaceutical position peaked at $3.23M in Q3 2021.
  • 295 funds tracked by Wall St. Rank held Ultragenyx Pharmaceutical as of Q1 2026.

Based on Tudor Investment Corp's 13F filing for Q1 2026, filed 15 May 2026.