Citadel Advisors
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Citadel Advisors’s Acacia Research ACTG Stock Holding History

Citadel Advisors’s Portfolio ACTG Stock Details ACTG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$85.6K Buy
17,800
+6,300
+55% +$26.5K ﹤0.01% 12133
2025
Q4 		$43K Buy
+11,500
New +$41.3K ﹤0.01% 12104
2025
Q2 		– Sell
-6,300
Closed -$20.2K – 12327
2025
Q1 		$20.2K Buy
6,300
+2,600
+70% +$10.6K ﹤0.01% 13137
2024
Q4 		$16.1K Sell
3,700
-9,100
-71% -$41.2K ﹤0.01% 13327
2024
Q3 		$59.6K Buy
12,800
+1,400
+12% +$6.92K ﹤0.01% 11714
2024
Q2 		$57.1K Sell
11,400
-3,200
-22% -$16.6K ﹤0.01% 11610
2024
Q1 		$77.8K Buy
14,600
+12,600
+630% +$52.6K ﹤0.01% 11691
2023
Q4 		$7.84K Buy
2,000
+1,400
+233% +$5.18K ﹤0.01% 13266
2023
Q3 		$2.19K Sell
600
-300
-33% -$1.15K ﹤0.01% 13751
2023
Q2 		$3.74K Buy
900
+800
+800% +$3.23K ﹤0.01% 13662
2023
Q1 		$386 Sell
100
-100
-50% -$423 ﹤0.01% 14505
2022
Q4 		$842 Buy
+200
New +$783 ﹤0.01% 14574
2022
Q2 		– Sell
-35,800
Closed -$161K – 12769
2022
Q1 		$161K Sell
35,800
-41,500
-54% -$174K ﹤0.01% 11776
2021
Q4 		$397K Buy
77,300
+42,600
+123% +$230K ﹤0.01% 10242
2021
Q3 		$236K Sell
34,700
-23,900
-41% -$146K ﹤0.01% 11599
2021
Q2 		$396K Sell
58,600
-9,600
-14% -$57.2K ﹤0.01% 10588
2021
Q1 		$454K Buy
+68,200
New +$430K ﹤0.01% 9878
2020
Q3 		– Sell
-13,400
Closed -$55K – 9996
2020
Q2 		$55K Sell
13,400
-6,400
-32% -$18.6K ﹤0.01% 9256
2020
Q1 		$44K Buy
+19,800
New +$48.3K ﹤0.01% 9084
2019
Q2 		– Sell
-45,600
Closed -$149K – 9090
2019
Q1 		$149K Buy
45,600
+13,200
+41% +$41K ﹤0.01% 8385
2018
Q4 		$97K Buy
32,400
+22,400
+224% +$69.3K ﹤0.01% 8249
2018
Q3 		$32K Sell
10,000
-13,600
-58% -$50.6K ﹤0.01% 8906
2018
Q2 		$98K Sell
23,600
-10,000
-30% -$38.4K ﹤0.01% 8248
2018
Q1 		$118K Buy
33,600
+5,200
+18% +$19.1K ﹤0.01% 7657
2017
Q4 		$115K Buy
28,400
+2,500
+10% +$10.6K ﹤0.01% 7380
2017
Q3 		$118K Buy
+25,900
New +$96.9K ﹤0.01% 6973
2016
Q2 		– Sell
-37,800
Closed -$143K – 6763
2016
Q1 		$143K Sell
37,800
-39,700
-51% -$146K ﹤0.01% 5856
2015
Q4 		$332K Buy
77,500
+69,800
+906% +$462K ﹤0.01% 5078
2015
Q3 		$70K Sell
7,700
-12,300
-62% -$111K ﹤0.01% 7295
2015
Q2 		$175K Buy
20,000
+8,900
+80% +$91.4K ﹤0.01% 6486
2015
Q1 		$119K Buy
11,100
+5,700
+106% +$74.4K ﹤0.01% 6696
2014
Q4 		$91K Sell
5,400
-5,700
-51% -$98.7K ﹤0.01% 6716
2014
Q3 		$172K Sell
11,100
-14,400
-56% -$242K ﹤0.01% 5881
2014
Q2 		$453K Sell
25,500
-1,100
-4% -$17.8K ﹤0.01% 4526
2014
Q1 		$406K Buy
26,600
+300
+1% +$4.36K ﹤0.01% 4644
2013
Q4 		$382K Buy
26,300
+7,500
+40% +$118K ﹤0.01% 4329
2013
Q3 		$434K Sell
18,800
-28,200
-60% -$645K ﹤0.01% 3949
2013
Q2 		$1.05M Buy
+47,000
New +$1.18M ﹤0.01% 3142

Other funds holding ACTG

SV
Starboard Value New York $4.57B AUM 4.97% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
KF
Krilogy Financial St. Louis, Missouri $3.11B AUM 20.67% 1-Year Est. Return
PLC
Peapod Lane Capital Bedford Hills, New York $122M AUM 67.29% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
PRCP
Pacific Ridge Capital Partners Lake Oswego, Oregon $462M AUM 40.76% 1-Year Est. Return

Citadel Advisors's ACTG Position: Q1 2026 in Review

Citadel Advisors reduced its Acacia Research (ACTG) stake by 40% in Q1 2026, selling an estimated $563K and leaving 197,571 shares worth $950K. The position accounts for ﹤0.01% of the portfolio, ranked #7774.

Citadel Advisors first reported a position in ACTG in Q2 2013 and has held it in 44 quarters since. The position peaked at $3.56M in Q1 2015. 118 funds tracked by Wall St. Rank hold ACTG as of Q1 2026.

  • Citadel Advisors held 197,571 shares of Acacia Research worth $950K as of Q1 2026.
  • Citadel Advisors sold 133,556 Acacia Research shares in Q1 2026, an estimated $563K.
  • Acacia Research made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7774 holding.
  • Citadel Advisors first reported a position in Acacia Research in Q2 2013 and has held it in 44 quarters since.
  • Citadel Advisors's Acacia Research position peaked at $3.56M in Q1 2015.
  • 118 funds tracked by Wall St. Rank held Acacia Research as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.