SEI Investments’s Pacific Biosciences PACB Stock Holding History

SEI Investments’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 Q1	$220K	Buy	+166,823	New	+$298K	﹤0.01%	2941
2025 Q1	–	Sell	-28,004	Closed	-$51.2K	–	2818
2024 Q4	$51.2K	Sell	28,004 -91,853	-77%	-$179K	﹤0.01%	2664
2024 Q3	$204K	Sell	119,857 -523,579	-81%	-$860K	﹤0.01%	2470
2024 Q2	$882K	Sell	643,436 -914,278	-59%	-$1.85M	﹤0.01%	1954
2024 Q1	$5.84M	Sell	1,557,714 -282,359	-15%	-$1.65M	0.01%	1136
2023 Q4	$18.1M	Buy	1,840,073 +642,400	+54%	+$5.25M	0.03%	613
2023 Q3	$10M	Sell	1,197,673 -250,019	-17%	-$2.86M	0.02%	859
2023 Q2	$19.3M	Sell	1,447,692 -708,474	-33%	-$8.61M	0.03%	577
2023 Q1	$25M	Sell	2,156,166 -495,421	-19%	-$4.93M	0.05%	444
2022 Q4	$21.7M	Sell	2,651,587 -841,675	-24%	-$7.25M	0.05%	428
2022 Q3	$20.3M	Sell	3,493,262 -356,287	-9%	-$2.04M	0.05%	457
2022 Q2	$17M	Sell	3,849,549 -86,738	-2%	-$527K	0.04%	524
2022 Q1	$35.8M	Buy	3,936,287 +1,261,333	+47%	+$14.5M	0.07%	295
2021 Q4	$54.7M	Buy	2,674,954 +146,263	+6%	+$3.53M	0.1%	207
2021 Q3	$64.6M	Sell	2,528,691 -20,534	-0.8%	-$608K	0.14%	153
2021 Q2	$89.1M	Buy	2,549,225 +436,096	+21%	+$12.7M	0.2%	91
2021 Q1	$70.4M	Sell	2,113,129 -55,907	-3%	-$1.96M	0.18%	100
2020 Q4	$56.3M	Buy	+2,169,036	New	+$36.9M	0.15%	127

Other funds holding PACB

AIM

ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

SoftBank Group Tokyo, Japan $11.4B AUM 27.91% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return

NAMA

Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

SEI Investments's PACB Position: Q1 2026 in Review

SEI Investments opened a new position in Pacific Biosciences (PACB) in Q1 2026: 166,823 shares worth $220K. The stake represents ﹤0.01% of the portfolio and ranks #2941 among its holdings. This is a return to the name: SEI Investments previously reported a position in PACB as recently as Q4 2024.

SEI Investments first reported a position in PACB in Q4 2020 and has held it in 18 quarters since. The position peaked at $89.1M in Q2 2021. 229 funds tracked by Wall St. Rank hold PACB as of Q1 2026.

SEI Investments held 166,823 shares of Pacific Biosciences worth $220K as of Q1 2026.
Pacific Biosciences was a new SEI Investments position in Q1 2026.
Pacific Biosciences made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #2941 holding.
SEI Investments first reported a position in Pacific Biosciences in Q4 2020 and has held it in 18 quarters since.
SEI Investments's Pacific Biosciences position peaked at $89.1M in Q2 2021.
229 funds tracked by Wall St. Rank held Pacific Biosciences as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.