Citadel Advisors
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Citadel Advisors’s Sera Prognostics SERA Stock Holding History

Citadel Advisors’s Portfolio SERA Stock Details SERA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$505K Sell
248,909
-458,705
-65% -$1.18M ﹤0.01% 9277
2025
Q4 		$2.09M Buy
707,614
+53,868
+8% +$174K ﹤0.01% 5827
2025
Q3 		$2M Buy
653,746
+24,739
+4% +$70.5K ﹤0.01% 6064
2025
Q2 		$1.74M Buy
629,007
+1,600
+0.3% +$3.96K ﹤0.01% 5969
2025
Q1 		$2.31M Buy
627,407
+627,343
+980,223% +$3.2M ﹤0.01% 5263
2024
Q4 		$521 Buy
+64
New +$470 ﹤0.01% 14315
2024
Q3 		– Sell
-109,157
Closed -$646K – 15134
2024
Q2 		$646K Buy
+109,157
New +$976K ﹤0.01% 7503
2023
Q3 		– Sell
-12,087
Closed -$39.8K – 15020
2023
Q2 		$39.8K Sell
12,087
-8,516
-41% -$29.2K ﹤0.01% 12071
2023
Q1 		$78.9K Buy
+20,603
New +$54.1K ﹤0.01% 11580
2022
Q4 		– Sell
-12,558
Closed -$20K – 15395
2022
Q3 		$20K Buy
+12,558
New +$25.3K ﹤0.01% 12076
2022
Q1 		– Sell
-21,872
Closed -$151K – 14469
2021
Q4 		$151K Sell
21,872
-35,091
-62% -$353K ﹤0.01% 12243
2021
Q3 		$633K Buy
+56,963
New +$591K ﹤0.01% 9300

Other funds holding SERA

BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
WCA
Whetstone Capital Advisors Shawnee Mission, Kansas $288M AUM 44.06% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
PR
PSP Research Newtown Square, Pennsylvania $188M AUM
VC
Vivo Capital Palo Alto, California $1.2B AUM 911.44% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
CAPTRUST Financial Advisors
CAPTRUST Financial Advisors Raleigh, North Carolina $57.3B AUM 18.32% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
SMH
Sanders Morris Harris Houston, Texas $172M AUM 22.54% 1-Year Est. Return
AIC
AWM Investment Company New York $903M AUM 163.47% 1-Year Est. Return

Citadel Advisors's SERA Position: Q1 2026 in Review

Citadel Advisors reduced its Sera Prognostics (SERA) stake by 65% in Q1 2026, selling an estimated $1.18M and leaving 248,909 shares worth $505K. The position accounts for ﹤0.01% of the portfolio, ranked #9277.

Citadel Advisors first reported a position in SERA in Q3 2021 and has held it in 12 quarters since. The position peaked at $2.31M in Q1 2025. 56 funds tracked by Wall St. Rank hold SERA as of Q1 2026.

  • Citadel Advisors held 248,909 shares of Sera Prognostics worth $505K as of Q1 2026.
  • Citadel Advisors sold 458,705 Sera Prognostics shares in Q1 2026, an estimated $1.18M.
  • Sera Prognostics made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #9277 holding.
  • Citadel Advisors first reported a position in Sera Prognostics in Q3 2021 and has held it in 12 quarters since.
  • Citadel Advisors's Sera Prognostics position peaked at $2.31M in Q1 2025.
  • 56 funds tracked by Wall St. Rank held Sera Prognostics as of Q1 2026.

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