Mariner
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Mariner’s Ceco Environmental CECO Stock Holding History

Mariner’s Portfolio CECO Stock Details CECO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$311K Buy
+4,459
New +$332K ﹤0.01% 2807
2025
Q1 		– Sell
-11,550
Closed -$349K – 3462
2024
Q4 		$349K Buy
11,550
+53
+0.5% +$1.51K ﹤0.01% 2492
2024
Q3 		$324K Sell
11,497
-25
-0.2% -$703 ﹤0.01% 2508
2024
Q2 		$332K Sell
11,522
-20
-0.2% -$484 ﹤0.01% 2368
2024
Q1 		$266K Buy
11,542
+179
+2% +$3.69K ﹤0.01% 2547
2023
Q4 		$230K Buy
11,363
+1
+0% +$18 ﹤0.01% 2576
2023
Q3 		$181K Sell
11,362
-3,717
-25% -$50.9K ﹤0.01% 2542
2023
Q2 		$201K Buy
15,079
+5
+0% +$62 ﹤0.01% 2460
2023
Q1 		$211K Sell
15,074
-1,000
-6% -$14.1K ﹤0.01% 2380
2022
Q4 		$188K Sell
16,074
-282
-2% -$3.19K ﹤0.01% 2372
2022
Q3 		$145K Buy
+16,356
New +$140K ﹤0.01% 2120

Other funds holding CECO

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
American Century Companies
American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Thrivent Financial for Lutherans
Thrivent Financial for Lutherans Minneapolis, Minnesota $61B AUM 26.91% 1-Year Est. Return
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return

Mariner's CECO Position: Q3 2026 in Review

Mariner opened a new position in Ceco Environmental (CECO) in Q3 2026: 4,459 shares worth $311K. The stake represents ﹤0.01% of the portfolio and ranks #2807 among its holdings. This is a return to the name: Mariner previously reported a position in CECO as recently as Q4 2024.

Mariner first reported a position in CECO in Q3 2022 and has held it in 11 quarters since. The position peaked at $349K in Q4 2024. 262 funds tracked by Wall St. Rank hold CECO as of Q3 2026.

  • Mariner held 4,459 shares of Ceco Environmental worth $311K as of Q3 2026.
  • Ceco Environmental was a new Mariner position in Q3 2026.
  • Ceco Environmental made up ﹤0.01% of Mariner's portfolio in Q3 2026, its #2807 holding.
  • Mariner first reported a position in Ceco Environmental in Q3 2022 and has held it in 11 quarters since.
  • Mariner's Ceco Environmental position peaked at $349K in Q4 2024.
  • 262 funds tracked by Wall St. Rank held Ceco Environmental as of Q3 2026.

Based on Mariner's 13F filing for Q3 2026, filed 12 Nov 2026.