Dimensional Fund Advisors
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Dimensional Fund Advisors’s AC Immune ACIU Stock Holding History

Dimensional Fund Advisors’s Portfolio ACIU Stock Details ACIU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.07M Buy
390,165
+176,701
+83% +$549K ﹤0.01% 2828
2025
Q4 		$670K Buy
213,464
+36,353
+21% +$115K ﹤0.01% 2925
2025
Q3 		$513K Sell
177,111
-21,575
-11% -$48.7K ﹤0.01% 2988
2025
Q2 		$403K Sell
198,686
-38,872
-16% -$67.6K ﹤0.01% 3025
2025
Q1 		$445K Buy
237,558
+106,148
+81% +$267K ﹤0.01% 3018
2024
Q4 		$355K Buy
131,410
+74,358
+130% +$232K ﹤0.01% 3084
2024
Q3 		$216K Sell
57,052
-3,146
-5% -$11K ﹤0.01% 3158
2024
Q2 		$240K Buy
60,198
+446
+0.7% +$1.48K ﹤0.01% 3139
2024
Q1 		$177K Hold
59,752
– – ﹤0.01% 3200
2023
Q4 		$299K Hold
59,752
– – ﹤0.01% 3136
2023
Q3 		$170K Sell
59,752
-1,200
-2% -$3.65K ﹤0.01% 3239
2023
Q2 		$180K Buy
60,952
+14,705
+32% +$32.1K ﹤0.01% 3254
2023
Q1 		$108K Buy
+46,247
New +$107K ﹤0.01% 3291
2022
Q3 		– Sell
-12,707
Closed -$45K – 3487
2022
Q2 		$45K Hold
12,707
– – ﹤0.01% 3397
2022
Q1 		$51K Hold
12,707
– – ﹤0.01% 3460
2021
Q4 		$63K Hold
12,707
– – ﹤0.01% 3470
2021
Q3 		$85K Hold
12,707
– – ﹤0.01% 3444
2021
Q2 		$101K Hold
12,707
– – ﹤0.01% 3407
2021
Q1 		$97K Hold
12,707
– – ﹤0.01% 3354
2020
Q4 		$66K Hold
12,707
– – ﹤0.01% 3303
2020
Q3 		$62K Hold
12,707
– – ﹤0.01% 3292
2020
Q2 		$86K Buy
12,707
+1,415
+13% +$10.3K ﹤0.01% 3287
2020
Q1 		$78K Buy
+11,292
New +$88.3K ﹤0.01% 3292

Other funds holding ACIU

BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
DIG
Dauntless Investment Group Etna, New Hampshire $151M AUM 76.14% 1-Year Est. Return

Dimensional Fund Advisors's ACIU Position: Q1 2026 in Review

Dimensional Fund Advisors increased its AC Immune (ACIU) stake by 83% in Q1 2026, buying an estimated $549K and bringing the position to 390,165 shares worth $1.07M. The position accounts for ﹤0.01% of the portfolio, ranked #2828.

Dimensional Fund Advisors first reported a position in ACIU in Q1 2020 and has held it in 23 quarters since. 46 funds tracked by Wall St. Rank hold ACIU as of Q1 2026.

  • Dimensional Fund Advisors held 390,165 shares of AC Immune worth $1.07M as of Q1 2026.
  • Dimensional Fund Advisors bought 176,701 AC Immune shares in Q1 2026, an estimated $549K.
  • AC Immune made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #2828 holding.
  • Dimensional Fund Advisors first reported a position in AC Immune in Q1 2020 and has held it in 23 quarters since.
  • 46 funds tracked by Wall St. Rank held AC Immune as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.