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Atom Investors’s Comcast CMCSA Stock Holding History

Atom Investors’s Portfolio CMCSA Stock Details CMCSA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-9,668
Closed -$289K – 684
2025
Q4 		$289K Sell
9,668
-134,408
-93% -$3.84M 0.02% 446
2025
Q3 		$4.53M Buy
144,076
+31,562
+28% +$1.06M 0.34% 87
2025
Q2 		$4.02M Buy
112,514
+104,159
+1,247% +$3.6M 0.36% 71
2025
Q1 		$308K Buy
+8,355
New +$301K 0.04% 360
2024
Q3 		– Sell
-92,922
Closed -$3.64M – 486
2024
Q2 		$3.64M Buy
+92,922
New +$3.64M 0.36% 85
2020
Q4 		– Sell
-29,259
Closed -$1.35M – 407
2020
Q3 		$1.35M Sell
29,259
-14,597
-33% -$635K 0.13% 159
2020
Q2 		$1.71M Sell
43,856
-436,919
-91% -$16.6M 0.11% 158
2020
Q1 		$16.5M Sell
480,775
-244,871
-34% -$10.3M 1.45% 14
2019
Q4 		$32.6M Buy
725,646
+140,711
+24% +$6.26M 2.67% 4
2019
Q3 		$26.4M Sell
584,935
-65,193
-10% -$2.89M 1.8% 10
2019
Q2 		$27.5M Buy
650,128
+12,124
+2% +$511K 1.79% 3
2019
Q1 		$25.5M Buy
638,004
+167,048
+35% +$6.29M 2.16% 3
2018
Q4 		$16M Buy
+470,956
New +$17.2M 1.58% 2

Other funds holding CMCSA

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Atom Investors's CMCSA Position: Q1 2026 in Review

Atom Investors sold out of Comcast (CMCSA) in Q1 2026, closing a stake of 9,668 shares — an estimated $289K sold.

Atom Investors first reported a position in CMCSA in Q4 2018 and held it in 13 quarters. The position peaked at $32.6M in Q4 2019. 2,045 funds tracked by Wall St. Rank hold CMCSA as of Q1 2026.

  • Atom Investors reported no remaining Comcast position as of Q1 2026 after selling out during the quarter.
  • Atom Investors sold 9,668 Comcast shares in Q1 2026, an estimated $289K.
  • Atom Investors first reported a position in Comcast in Q4 2018 and held it in 13 quarters.
  • Atom Investors's Comcast position peaked at $32.6M in Q4 2019.
  • 2,045 funds tracked by Wall St. Rank held Comcast as of Q1 2026.

Based on Atom Investors's 13F filing for Q1 2026, filed 15 May 2026.