Group One Trading
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Group One Trading’s Pacific Biosciences PACB Stock Holding History

Group One Trading’s Portfolio PACB Stock Details PACB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$489K Sell
290,860
-74,161
-20% -$108K ﹤0.01% 3521
2026
Q1 		$482K Sell
365,021
-95,229
-21% -$170K ﹤0.01% 3382
2025
Q4 		$861K Buy
460,250
+5,382
+1% +$10.3K ﹤0.01% 3031
2025
Q3 		$582K Buy
454,868
+352,426
+344% +$477K ﹤0.01% 3543
2025
Q2 		$127K Buy
+102,442
New +$118K ﹤0.01% 4753
2025
Q1 		– Sell
-557,333
Closed -$855K – 8167
2024
Q4 		$1.02M Sell
557,333
-475,098
-46% -$927K ﹤0.01% 2556
2024
Q3 		$1.76M Buy
1,032,431
+132,287
+15% +$217K 0.01% 1819
2024
Q2 		$1.23M Buy
900,144
+706,229
+364% +$1.43M ﹤0.01% 1818
2024
Q1 		$727K Sell
193,915
-210,072
-52% -$1.23M ﹤0.01% 2379
2023
Q4 		$3.96M Buy
403,987
+122,327
+43% +$1M 0.01% 1318
2023
Q3 		$2.35M Buy
281,660
+43,218
+18% +$494K 0.01% 1512
2023
Q2 		$3.17M Sell
238,442
-8,058
-3% -$97.9K 0.01% 1321
2023
Q1 		$2.85M Buy
246,500
+14,950
+6% +$149K 0.01% 1243
2022
Q4 		$1.89M Buy
+231,550
New +$2M ﹤0.01% 1873
2021
Q1 		– Sell
-283,842
Closed -$9.93M – 7908
2020
Q4 		$7.36M Buy
283,842
+269,134
+1,830% +$4.57M 0.01% 1007
2020
Q3 		$145K Sell
14,708
-15,782
-52% -$90.9K ﹤0.01% 3903
2020
Q2 		$105K Sell
30,490
-185,297
-86% -$631K ﹤0.01% 3869
2020
Q1 		$660K Buy
215,787
+153,404
+246% +$628K 0.01% 1849
2019
Q4 		$321K Sell
62,383
-20,923
-25% -$106K ﹤0.01% 2804
2019
Q3 		$430K Buy
+83,306
New +$466K ﹤0.01% 2461
2019
Q2 		– Sell
-39,530
Closed -$277K – 5281
2019
Q1 		$286K Sell
39,530
-24,723
-38% -$179K ﹤0.01% 2421
2018
Q4 		$475K Buy
64,253
+39,980
+165% +$253K ﹤0.01% 2018
2018
Q3 		$131K Sell
24,273
-47,615
-66% -$204K ﹤0.01% 3332
2018
Q2 		$255K Sell
71,888
-58,100
-45% -$161K ﹤0.01% 2857
2018
Q1 		$266K Sell
129,988
-75,349
-37% -$196K ﹤0.01% 2567
2017
Q4 		$542K Buy
205,337
+116,968
+132% +$410K ﹤0.01% 2192
2017
Q3 		$464K Buy
88,369
+51,230
+138% +$220K ﹤0.01% 2138
2017
Q2 		$132K Sell
37,139
-161,776
-81% -$652K ﹤0.01% 2940
2017
Q1 		$1.03M Buy
198,915
+6,065
+3% +$29.7K 0.01% 1326
2016
Q4 		$733K Buy
192,850
+72,810
+61% +$529K 0.01% 1529
2016
Q3 		$1.08M Sell
120,040
-20,061
-14% -$168K 0.01% 1234
2016
Q2 		$986K Sell
140,101
-20,612
-13% -$188K 0.01% 1272
2016
Q1 		$1.37M Buy
160,713
+83,294
+108% +$819K 0.02% 971
2015
Q4 		$1.02M Buy
+77,419
New +$695K 0.01% 1313
2015
Q3 		– Sell
-22
Closed -$108 – 5100
2015
Q2 		$0 Sell
22
-1,300
-98% -$7.52K ﹤0.01% 5077
2015
Q1 		$8K Sell
1,322
-8,680
-87% -$59.9K ﹤0.01% 4229
2014
Q4 		$78K Sell
10,002
-11,948
-54% -$76.5K ﹤0.01% 3044
2014
Q3 		$108K Sell
21,950
-12,746
-37% -$66.6K ﹤0.01% 2907
2014
Q2 		$214K Buy
34,696
+20,568
+146% +$103K ﹤0.01% 2346
2014
Q1 		$76K Buy
14,128
+2,332
+20% +$14.7K ﹤0.01% 3302
2013
Q4 		$62K Sell
11,796
-3,956
-25% -$18.2K ﹤0.01% 3432
2013
Q3 		$87K Buy
15,752
+8,318
+112% +$28.9K ﹤0.01% 3141
2013
Q2 		$19K Buy
+7,434
New +$18.5K ﹤0.01% 4109

Other funds holding PACB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
SoftBank Group
SoftBank Group Tokyo, Japan $18.2B AUM 177.65% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Group One Trading's PACB Position: Q2 2026 in Review

Group One Trading reduced its Pacific Biosciences (PACB) stake by 20% in Q2 2026, selling an estimated $108K and leaving 290,860 shares worth $489K. The position accounts for ﹤0.01% of the portfolio, ranked #3521.

Group One Trading first reported a position in PACB in Q2 2013 and has held it in 43 quarters since. The position peaked at $7.36M in Q4 2020. 223 funds tracked by Wall St. Rank hold PACB as of Q2 2026.

  • Group One Trading held 290,860 shares of Pacific Biosciences worth $489K as of Q2 2026.
  • Group One Trading sold 74,161 Pacific Biosciences shares in Q2 2026, an estimated $108K.
  • Pacific Biosciences made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #3521 holding.
  • Group One Trading first reported a position in Pacific Biosciences in Q2 2013 and has held it in 43 quarters since.
  • Group One Trading's Pacific Biosciences position peaked at $7.36M in Q4 2020.
  • 223 funds tracked by Wall St. Rank held Pacific Biosciences as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.