How many institutions held CLH - CLEAN HARBORS INC - Common Stock, par value $0.01 per share in Q1 2017?

230 institutional investors reported CLH - CLEAN HARBORS INC - Common Stock, par value $0.01 per share for Q1 2017. Use the holders table for investor-level position and value details.

CLEAN HARBORS INC - Common Stock, par value $0.01 per share (CLH)

Q: What does CUSIP 184496107 represent in this 13F holders report?

CUSIP 184496107 is the security identifier for CLH - CLEAN HARBORS INC - Common Stock, par value $0.01 per share used to aggregate holder disclosures.

CUSIP: 184496107

Q1 2017 13F Holders as of 31 Mar 2017

Security type / class: Equity / Common Stock, par value $0.01 per share
Total 13F shares: 55,202,582
Total 13F value: $3,071,343,453
Share change: +4,530,744
Put/Call ratio: 54%
SEC-reported price per share: $55.62
Number of holders: 230
Value change: +$251,877,684
Number of buys: 112
Number of sells: 99
Shares outstanding: 53,531,240

Security key

184496107

Report period

Q1 2017

Institutions

230

Top holders

CLH full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2017 Previous quarter: Q4 2016 CLEAN HARBORS INC SEC filings CLEAN HARBORS INC company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 184496107

Newer quarter: Q2 2017 Previous quarter: Q4 2016

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top reported holders of CLH - CLEAN HARBORS INC - Common Stock, par value $0.01 per share (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

WELLINGTON MANAGEMENT GRO...

Disclosed value leader

WELLINGTON MANAGEMENT GRO...

Comparable rows

15/15

Latest evidence

31 Dec 2016

13F Lead comparable stake: 11% Showing 1-6 of 15 holder rows.

Quick read

WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 11%.

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 WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.

Comparable ownership Top 5

WELLINGTON MANAGEMENT GROUP LLP 11%

SOUTHERNSUN ASSET MANAGEMENT, LLC 7.4%

VANGUARD GROUP INC 7.2%

ArrowMark Colorado Holdings LLC 4.3%

PRICE T ROWE ASSOCIATES INC /MD/ 4.1%

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
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	11%	$341,715,000 6,140,425 shares	—	31 Dec 2016
SOUTHERNSUN ASSET MANAGEMENT, LLC	13F Company 13F	7.4%	$219,400,000 3,942,503 shares	—	31 Dec 2016
VANGUARD GROUP INC	13F Company 13F	7.2%	$215,778,000 3,877,418 shares	—	31 Dec 2016
ArrowMark Colorado Holdings LLC	13F Company 13F	4.3%	$128,145,000 2,302,689 shares	—	31 Dec 2016
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	4.1%	$121,171,000 2,177,384 shares	—	31 Dec 2016
BlackRock Fund Advisors	13F Company 13F	3.9%	$115,972,000 2,083,951 shares	—	31 Dec 2016

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 2017

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

Institutions

230

55,202,582

Rows available

230

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 2017 vs Q4 2016 Across Filers

Q4 2016 holders

233

Q1 2017 holders

230

Holder diff

-3

Investor	Q4 2016 Shares	Q1 2017 Shares	Share Diff	Share Chg %	Q4 2016 value	Q1 2017 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend