What does CUSIP 125141101 represent in this 13F holders report?

CUSIP 125141101 is the security identifier for CECO - CECO ENVIRONMENTAL CORP - COMMON STOCK used to aggregate holder disclosures.

How many institutions held CECO - CECO ENVIRONMENTAL CORP - COMMON STOCK in Q1 2026?

262 institutional investors reported CECO - CECO ENVIRONMENTAL CORP - COMMON STOCK for Q1 2026. Use the holders table for investor-level position and value details.

CECO ENVIRONMENTAL CORP - COMMON STOCK (CECO)

CUSIP: 125141101

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / COMMON STOCK
Total 13F shares: 31,488,881
Total 13F value: $1,876,022,800
Share change: +1,983,942
Put/Call ratio: 44%
SEC-reported price per share: $59.58
Number of holders: 262
Value change: +$117,338,368
Number of buys: 143
Number of sells: 104
Shares outstanding: 58,214,946

Security key

125141101

Report period

Q1 2026

Institutions

262

Top holders

CECO full security history Ownership snapshot Full 13F holder table CECO ENVIRONMENTAL CORP SEC filings CECO ENVIRONMENTAL CORP company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of CECO - CECO ENVIRONMENTAL CORP - COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Jason DeZwirek

Disclosed value leader

Jason DeZwirek

Comparable rows

15/15

Latest evidence

31 Mar 2026

13D/G 13F 3/4/5 Lead comparable stake: 12% 13D/G row: Jason DeZwirek Showing 1-6 of 15 holder rows.

Quick read

Jason DeZwirek leads the comparable SEC ownership view at 12%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Jason DeZwirek's linked filing trail.

Comparable ownership Top 5

Jason DeZwirek 12%

BlackRock, Inc. 6.3%

VANGUARD GROUP INC 5%

Capital International Investors 4.7%

DIMENSIONAL FUND ADVISORS LP 3.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Jason DeZwirek	13D/G 13D/G	12%	$259,443,260 4,198,111 shares	$0	23 Feb 2026
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	6.3% from 13D/G	$136,778,736 2,285,359 shares	—	31 Dec 2025
VANGUARD GROUP INC	13D/G 13F The Vanguard Group · Company 13D/G 13F	5%	$106,568,849 1,780,596 shares	+$588,925	31 Dec 2025
Capital International Investors	13D/G 13F Company 13D/G 13F	4.7%	$85,777,971 1,675,351 shares	$0	30 Sep 2025
DIMENSIONAL FUND ADVISORS LP	13F 13D/G Company 13F 13D/G	3.6% from 13D/G	$53,598,168 895,540 shares	—	31 Dec 2025
Hood River Capital Management LLC	13D/G 13D/G	1.4%	$25,209,549 492,374 shares	-$73,487,053	30 Sep 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

262

31,488,881

Rows available

262

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

262

Q1 2026 holders

262

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %