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 		$84.2K Buy
17,500
+5,900
+51% +$24.9K ﹤0.01% 12146
2025
Q4 		$43.4K Buy
+11,600
New +$41.6K ﹤0.01% 12099
2025
Q3 		– Sell
-21,200
Closed -$75.9K – 12636
2025
Q2 		$75.9K Buy
21,200
+18,800
+783% +$64.7K ﹤0.01% 11526
2025
Q1 		$7.68K Sell
2,400
-31,900
-93% -$130K ﹤0.01% 13680
2024
Q4 		$149K Buy
34,300
+33,300
+3,330% +$151K ﹤0.01% 10896
2024
Q3 		$4.66K Buy
1,000
+300
+43% +$1.48K ﹤0.01% 13550
2024
Q2 		$3.51K Sell
700
-38,300
-98% -$198K ﹤0.01% 13591
2024
Q1 		$208K Buy
39,000
+38,500
+7,700% +$161K ﹤0.01% 10247
2023
Q4 		$1.96K Sell
500
-900
-64% -$3.33K ﹤0.01% 13756
2023
Q3 		$5.11K Sell
1,400
-24,300
-95% -$92.9K ﹤0.01% 13421
2023
Q2 		$107K Buy
+25,700
New +$104K ﹤0.01% 10834
2023
Q1 		– Sell
-2,900
Closed -$12.2K – 14631
2022
Q4 		$12.2K Sell
2,900
-12,800
-82% -$50.1K ﹤0.01% 13522
2022
Q3 		$63K Sell
15,700
-6,000
-28% -$27.7K ﹤0.01% 11454
2022
Q2 		$109K Buy
21,700
+3,300
+18% +$15.1K ﹤0.01% 11324
2022
Q1 		$83K Sell
18,400
-13,400
-42% -$56.3K ﹤0.01% 12446
2021
Q4 		$163K Sell
31,800
-20,200
-39% -$109K ﹤0.01% 12153
2021
Q3 		$353K Buy
52,000
+10,800
+26% +$66.1K ﹤0.01% 10698
2021
Q2 		$279K Sell
41,200
-16,200
-28% -$96.4K ﹤0.01% 11440
2021
Q1 		$382K Buy
57,400
+38,400
+202% +$242K ﹤0.01% 10291
2020
Q4 		$75K Sell
19,000
-1,800
-9% -$6.46K ﹤0.01% 10375
2020
Q3 		$72K Buy
20,800
+300
+1% +$1.17K ﹤0.01% 9449
2020
Q2 		$84K Buy
20,500
+8,600
+72% +$24.9K ﹤0.01% 9083
2020
Q1 		$26K Buy
+11,900
New +$29K ﹤0.01% 9227
2018
Q4 		– Sell
-12,300
Closed -$39K – 9011
2018
Q3 		$39K Buy
+12,300
New +$45.7K ﹤0.01% 8855
2017
Q2 		– Sell
-10,200
Closed -$59K – 7404
2017
Q1 		$59K Buy
+10,200
New +$59.5K ﹤0.01% 7008
2016
Q2 		– Sell
-28,800
Closed -$109K – 6762
2016
Q1 		$109K Buy
28,800
+26,400
+1,100% +$96.9K ﹤0.01% 5986
2015
Q4 		$10K Sell
2,400
-5,600
-70% -$37.1K ﹤0.01% 8263
2015
Q3 		$73K Buy
8,000
+3,600
+82% +$32.4K ﹤0.01% 7258
2015
Q2 		$39K Buy
4,400
+1,500
+52% +$15.4K ﹤0.01% 7823
2015
Q1 		$31K Sell
2,900
-32,400
-92% -$423K ﹤0.01% 7673
2014
Q4 		$598K Sell
35,300
-18,500
-34% -$320K ﹤0.01% 4453
2014
Q3 		$833K Buy
53,800
+35,400
+192% +$596K ﹤0.01% 3939
2014
Q2 		$327K Buy
18,400
+4,300
+30% +$69.7K ﹤0.01% 4940
2014
Q1 		$215K Sell
14,100
-3,800
-21% -$55.3K ﹤0.01% 5435
2013
Q4 		$260K Sell
17,900
-19,200
-52% -$303K ﹤0.01% 4747
2013
Q3 		$856K Sell
37,100
-19,700
-35% -$451K ﹤0.01% 3259
2013
Q2 		$1.27M Buy
+56,800
New +$1.43M ﹤0.01% 2941

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.