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Mattern Capital Management’s Comcast CMCSA Stock Holding History

Mattern Capital Management’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
2025
Q4 		– Sell
-234,941
Closed -$7.38M – 172
2025
Q3 		$7.38M Buy
234,941
+13,457
+6% +$451K 0.87% 68
2025
Q2 		$7.9M Buy
221,484
+7,609
+4% +$263K 0.95% 62
2025
Q1 		$7.89M Buy
213,875
+7,160
+3% +$258K 1% 63
2024
Q4 		$7.76M Buy
206,715
+13,169
+7% +$547K 1.01% 66
2024
Q3 		$8.08M Buy
193,546
+3,883
+2% +$153K 1.02% 64
2024
Q2 		$7.43M Buy
189,663
+3,107
+2% +$122K 1.03% 59
2024
Q1 		$8.09M Buy
186,556
+6,650
+4% +$287K 1.1% 52
2023
Q4 		$7.89M Buy
179,906
+2,987
+2% +$128K 1.15% 47
2023
Q3 		$7.84M Buy
176,919
+6,603
+4% +$295K 1.27% 24
2023
Q2 		$7.08M Buy
170,316
+4,399
+3% +$175K 1.15% 35
2023
Q1 		$6.29M Buy
165,917
+3,941
+2% +$149K 1.11% 46
2022
Q4 		$5.66M Buy
161,976
+19,162
+13% +$634K 1.05% 63
2022
Q3 		$4.19M Buy
142,814
+3,363
+2% +$126K 0.87% 75
2022
Q2 		$5.47M Buy
139,451
+12,149
+10% +$521K 1.08% 60
2022
Q1 		$5.96M Buy
127,302
+6,037
+5% +$291K 1.07% 56
2021
Q4 		$6.1M Buy
121,265
+3,884
+3% +$202K 1.07% 52
2021
Q3 		$6.57M Buy
117,381
+1,413
+1% +$82.4K 1.3% 25
2021
Q2 		$6.61M Buy
115,968
+3,283
+3% +$184K 1.31% 17
2021
Q1 		$6.1M Buy
112,685
+1,275
+1% +$67.4K 1.32% 18
2020
Q4 		$5.84M Buy
111,410
+269
+0.2% +$12.9K 1.38% 13
2020
Q3 		$5.14M Buy
111,141
+1,102
+1% +$47.9K 1.34% 13
2020
Q2 		$4.29M Buy
110,039
+3,069
+3% +$117K 1.24% 36
2020
Q1 		$3.68M Sell
106,970
-1,854
-2% -$78.2K 1.25% 19
2019
Q4 		$4.89M Buy
+108,824
New +$4.84M 1.35% 12

Other funds holding CMCSA

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Mattern Capital Management's CMCSA Position: Q4 2025 in Review

Mattern Capital Management sold out of Comcast (CMCSA) in Q4 2025, closing a stake of 234,941 shares — an estimated $7.38M sold.

Mattern Capital Management first reported a position in CMCSA in Q4 2019 and held it in 24 quarters. The position peaked at $8.09M in Q1 2024. 2,105 funds tracked by Wall St. Rank hold CMCSA as of Q4 2025.

  • Mattern Capital Management reported no remaining Comcast position as of Q4 2025 after selling out during the quarter.
  • Mattern Capital Management sold 234,941 Comcast shares in Q4 2025, an estimated $7.38M.
  • Mattern Capital Management first reported a position in Comcast in Q4 2019 and held it in 24 quarters.
  • Mattern Capital Management's Comcast position peaked at $8.09M in Q1 2024.
  • 2,105 funds tracked by Wall St. Rank held Comcast as of Q4 2025.

Based on Mattern Capital Management's 13F filing for Q4 2025, filed 29 Jan 2026.