Group One Trading
RARE icon

Group One Trading’s Ultragenyx Pharmaceutical RARE Stock Holding History

Group One Trading’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 		$350K Sell
16,700
-62,500
-79% -$1.41M ﹤0.01% 3664
2025
Q4 		$1.82M Buy
79,200
+33,500
+73% +$1.1M ﹤0.01% 2363
2025
Q3 		$1.37M Buy
45,700
+33,700
+281% +$1.01M ﹤0.01% 2693
2025
Q2 		$436K Buy
12,000
+6,000
+100% +$216K ﹤0.01% 3560
2025
Q1 		$217K Sell
6,000
-8,800
-59% -$366K ﹤0.01% 3938
2024
Q4 		$623K Buy
14,800
+8,400
+131% +$417K ﹤0.01% 2987
2024
Q3 		$356K Buy
6,400
+6,300
+6,300% +$321K ﹤0.01% 3114
2024
Q2 		$4.11K Sell
100
-1,100
-92% -$47K ﹤0.01% 6025
2024
Q1 		$56K Buy
1,200
+400
+50% +$18.9K ﹤0.01% 4627
2023
Q4 		$38.3K Sell
800
-800
-50% -$31K ﹤0.01% 5271
2023
Q3 		$57K Sell
1,600
-3,100
-66% -$123K ﹤0.01% 4971
2023
Q2 		$217K Buy
+4,700
New +$218K ﹤0.01% 3840
2023
Q1 		– Sell
-9,100
Closed -$422K – 7820
2022
Q4 		$422K Buy
9,100
+7,400
+435% +$291K ﹤0.01% 3202
2022
Q3 		$70K Buy
1,700
+1,100
+183% +$56.5K ﹤0.01% 5119
2022
Q2 		$36K Buy
+600
New +$36.9K ﹤0.01% 5847
2022
Q1 		– Sell
-100
Closed -$8K – 8562
2021
Q4 		$8K Buy
+100
New +$8.14K ﹤0.01% 7469
2021
Q3 		– Sell
-100
Closed -$10K – 8679
2021
Q2 		$10K Buy
+100
New +$10.4K ﹤0.01% 7527
2021
Q1 		– Sell
-100
Closed -$14K – 7942
2020
Q4 		$14K Buy
+100
New +$11.9K ﹤0.01% 5671
2020
Q3 		– Sell
-300
Closed -$23K – 6473
2020
Q2 		$23K Buy
+300
New +$19.9K ﹤0.01% 4767
2019
Q2 		– Sell
-2,500
Closed -$173K – 5312
2019
Q1 		$173K Buy
+2,500
New +$143K ﹤0.01% 2804
2018
Q4 		– Sell
-12,300
Closed -$939K – 5312
2018
Q3 		$939K Buy
12,300
+10,600
+624% +$862K 0.01% 1759
2018
Q2 		$131K Buy
1,700
+1,600
+1,600% +$103K ﹤0.01% 3378
2018
Q1 		$5K Hold
100
– – ﹤0.01% 4507
2017
Q4 		$5K Buy
+100
New +$4.9K ﹤0.01% 4572
2017
Q3 		– Sell
-1,500
Closed -$93K – 5093
2017
Q2 		$93K Sell
1,500
-1,500
-50% -$90.4K ﹤0.01% 3165
2017
Q1 		$203K Sell
3,000
-6,600
-69% -$503K ﹤0.01% 2510
2016
Q4 		$675K Buy
9,600
+5,700
+146% +$404K 0.01% 1580
2016
Q3 		$277K Buy
3,900
+3,800
+3,800% +$243K ﹤0.01% 2251
2016
Q2 		$5K Hold
100
– – ﹤0.01% 4278
2016
Q1 		$6K Sell
100
-4,600
-98% -$301K ﹤0.01% 4167
2015
Q4 		$527K Buy
4,700
+1,400
+42% +$140K 0.01% 1782
2015
Q3 		$318K Buy
3,300
+400
+14% +$45.8K ﹤0.01% 2151
2015
Q2 		$297K Sell
2,900
-5,700
-66% -$443K ﹤0.01% 2232
2015
Q1 		$534K Buy
8,600
+7,000
+438% +$389K 0.01% 1538
2014
Q4 		$70K Sell
1,600
-1,000
-38% -$45.8K ﹤0.01% 3125
2014
Q3 		$147K Buy
+2,600
New +$131K ﹤0.01% 2650

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

Group One Trading's RARE Position: Q1 2026 in Review

Group One Trading increased its Ultragenyx Pharmaceutical (RARE) stake by 504% in Q1 2026, buying an estimated $2.63M and bringing the position to 140,166 shares worth $2.94M. The position accounts for 0.01% of the portfolio, ranked #1721.

Group One Trading first reported a position in RARE in Q2 2014 and has held it in 28 quarters since. 295 funds tracked by Wall St. Rank hold RARE as of Q1 2026.

  • Group One Trading held 140,166 shares of Ultragenyx Pharmaceutical worth $2.94M as of Q1 2026.
  • Group One Trading bought 116,958 Ultragenyx Pharmaceutical shares in Q1 2026, an estimated $2.63M.
  • Ultragenyx Pharmaceutical made up 0.01% of Group One Trading's portfolio in Q1 2026, its #1721 holding.
  • Group One Trading first reported a position in Ultragenyx Pharmaceutical in Q2 2014 and has held it in 28 quarters since.
  • 295 funds tracked by Wall St. Rank held Ultragenyx Pharmaceutical as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.