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
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 $1.97B AUM 125.1% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
SCM
Suvretta Capital Management New York $3.92B AUM 86.67% 1-Year Est. Return
VC
Vivo Capital Palo Alto, California $1.2B AUM 911.44% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Wellington Management Group's CMPX Position: Q1 2026 in Review

Wellington Management Group increased its Compass Therapeutics (CMPX) stake by 14% in Q1 2026, buying an estimated $250K and bringing the position to 360,125 shares worth $1.91M. The position accounts for ﹤0.01% of the portfolio, ranked #1562.

Wellington Management Group first reported a position in CMPX in Q1 2024 and has held it in 7 quarters since. 201 funds tracked by Wall St. Rank hold CMPX as of Q1 2026.

  • Wellington Management Group held 360,125 shares of Compass Therapeutics worth $1.91M as of Q1 2026.
  • Wellington Management Group bought 43,276 Compass Therapeutics shares in Q1 2026, an estimated $250K.
  • Compass Therapeutics made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #1562 holding.
  • Wellington Management Group first reported a position in Compass Therapeutics in Q1 2024 and has held it in 7 quarters since.
  • 201 funds tracked by Wall St. Rank held Compass Therapeutics as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.