Wellington Management Group
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Wellington Management Group’s Compass Therapeutics CMPX Stock Holding History

Wellington Management Group’s Portfolio CMPX Stock Details CMPX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$829K Buy
378,687
+18,562
+5% +$54.8K ﹤0.01% 1780
2026
Q1 		$1.91M Buy
360,125
+43,276
+14% +$250K ﹤0.01% 1562
2025
Q4 		$1.7M Sell
316,849
-1,275
-0.4% -$5.89K ﹤0.01% 1631
2025
Q3 		$1.11M Sell
318,124
-29,916
-9% -$94.5K ﹤0.01% 1760
2025
Q2 		$905K Buy
348,040
+125,535
+56% +$259K ﹤0.01% 1736
2025
Q1 		$423K Buy
+222,505
New +$592K ﹤0.01% 1843
2024
Q3 		– Sell
-243,650
Closed -$244K – 1935
2024
Q2 		$244K Sell
243,650
-76,971
-24% -$112K ﹤0.01% 1846
2024
Q1 		$635K Buy
+320,621
New +$554K ﹤0.01% 1777

Other funds holding CMPX

TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
SCM
Suvretta Capital Management New York $5.47B AUM 131.34% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $345M AUM 134.64% 1-Year Est. Return
VC
Vivo Capital Palo Alto, California $1.1B AUM 799.93% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
PAI
Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Wellington Management Group's CMPX Position: Q2 2026 in Review

Wellington Management Group increased its Compass Therapeutics (CMPX) stake by 5.2% in Q2 2026, buying an estimated $54.8K and bringing the position to 378,687 shares worth $829K. The position accounts for ﹤0.01% of the portfolio, ranked #1780.

Wellington Management Group first reported a position in CMPX in Q1 2024 and has held it in 8 quarters since. The position peaked at $1.91M in Q1 2026. 216 funds tracked by Wall St. Rank hold CMPX as of Q2 2026.

  • Wellington Management Group held 378,687 shares of Compass Therapeutics worth $829K as of Q2 2026.
  • Wellington Management Group bought 18,562 Compass Therapeutics shares in Q2 2026, an estimated $54.8K.
  • Compass Therapeutics made up ﹤0.01% of Wellington Management Group's portfolio in Q2 2026, its #1780 holding.
  • Wellington Management Group first reported a position in Compass Therapeutics in Q1 2024 and has held it in 8 quarters since.
  • Wellington Management Group's Compass Therapeutics position peaked at $1.91M in Q1 2026.
  • 216 funds tracked by Wall St. Rank held Compass Therapeutics as of Q2 2026.

Based on Wellington Management Group's 13F filing for Q2 2026, filed 14 Aug 2026.