Perma-Fix Environmental Services Inc (PESI) Ownership

5.79 ↑0.05 (0.87%)

As of Market Close on May 19th, 2022.

Institutions
Mutual Funds

Institutional Ownership

Heartland Advisors Inc is the biggest individual institutional holder of Perma-Fix Environmental Services Inc (PESI), owning a total of 1.3 million shares. Combined, the top 86 institutional holders of PESI own 105.09% of the company with a total of 13.3 million shares.

In the latest ownership report, the top 86 institutional holders have increased their combined ownership of PESI by 556 thousand shares, a 4.00% increase from the quarter prior.

Institution Ownership Chart

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Heartland Advisors Inc	11.043%	-0.547%	1,345,130	-7,400	2021-03-31
Heartland Advisors Inc	10.522%	-4.597%	1,283,290	-61,840	2021-06-30
Heartland Advisors Inc	9.023%	-7.090%	1,192,310	-90,980	2021-09-30
Heartland Advisors Inc	8.661%	-4.010%	1,144,500	-47,810	2021-12-31
Punch & Associates Inv Mgmt Inc	3.507%	19.068%	427,750	68,500	2021-06-30
Punch & Associates Inv Mgmt Inc	3.439%	1.394%	454,500	6,250	2021-12-31
Punch & Associates Inv Mgmt Inc	3.392%	4.793%	448,250	20,500	2021-09-30
Vanguard Group Inc	3.331%	8.769%	440,124	35,483	2021-12-31
Vanguard Group Inc	3.322%	3.497%	404,641	13,672	2021-03-31
Vanguard Group Inc	3.318%	0.000%	404,641	0	2021-06-30
Vanguard Group Inc	3.062%	0.000%	404,641	0	2021-09-30
BlackRock Inc	2.996%	2.257%	364,919	8,056	2021-03-31
Punch & Associates Inv Mgmt Inc	2.949%	19.750%	359,250	59,250	2021-03-31
BlackRock Inc	2.303%	0.492%	304,341	1,491	2021-12-31
BlackRock Inc	2.271%	-24.105%	276,954	-87,965	2021-06-30
Morgan Dempsey Capital Management, LLC	1.913%	1,146.700%	253,143	232,838	2022-03-31
Renaissance Technologies Corp	1.771%	-3.056%	215,742	-6,800	2021-03-31
Renaissance Technologies Corp	1.643%	-7.117%	200,388	-15,354	2021-06-30
Potomac Capital Management, Inc.	1.552%	0.835%	205,400	1,700	2022-03-31
Potomac Capital Management, Inc.	1.541%	0.000%	203,700	203,700	2021-12-31
Ancora Advisors LLC	1.333%	17.707%	176,165	26,501	2021-09-30
Renaissance Technologies Corp	1.250%	-17.562%	165,196	-35,192	2021-09-30
Perritt Capital Management Inc.	1.242%	29.111%	164,100	37,000	2021-12-31
Ancora Advisors LLC	1.227%	5.273%	149,664	7,496	2021-06-30
Ancora Advisors LLC	1.182%	-11.347%	156,175	-19,990	2021-12-31
Renaissance Technologies Corp	1.177%	-5.811%	155,596	-9,600	2021-12-31
Ancora Advisors LLC	1.167%	47.306%	142,168	45,656	2021-03-31
Perritt Capital Management Inc.	0.991%	10.965%	120,822	11,939	2021-06-30
Perritt Capital Management Inc.	0.962%	5.196%	127,100	6,278	2021-09-30
Perritt Capital Management Inc.	0.894%	-17.530%	108,883	-23,145	2021-03-31
Schmeidler A R & CO Inc	0.842%	58.853%	111,197	41,197	2021-12-31
Dimensional Fund Advisors, Inc.	0.552%	2.908%	67,230	1,900	2021-03-31
Dimensional Fund Advisors, Inc.	0.551%	0.000%	67,230	0	2021-06-30
Schmeidler A R & CO Inc	0.530%	0.000%	70,000	70,000	2021-09-30
Dimensional Fund Advisors, Inc.	0.509%	0.131%	67,318	88	2021-09-30
Dimensional Fund Advisors, Inc.	0.509%	0.000%	67,318	0	2021-12-31
Dimensional Fund Advisors, Inc.	0.509%	0.000%	67,318	0	2022-03-31
State Street Corporation	0.476%	0.000%	58,035	58,035	2021-06-30
California Public Employees Retrmnt Sys	0.465%	-11.704%	56,688	-7,514	2021-03-31
State Street Corporation	0.439%	0.000%	58,035	0	2021-09-30
State Street Corporation	0.439%	0.000%	58,035	0	2021-12-31
Geode Capital Management, LLC	0.408%	4.958%	49,774	2,351	2021-06-30
Geode Capital Management, LLC	0.389%	0.000%	47,423	0	2020-12-31
Chesley Taft & Associates Llc	0.385%	0.000%	46,875	0	2021-03-31
Chesley Taft & Associates Llc	0.384%	0.000%	46,875	0	2021-06-30
Geode Capital Management, LLC	0.377%	0.000%	49,774	0	2021-12-31
Geode Capital Management, LLC	0.377%	0.000%	49,774	0	2021-09-30
Chesley Taft & Associates Llc	0.355%	0.000%	46,875	0	2021-09-30
Chesley Taft & Associates Llc	0.355%	0.000%	46,875	0	2021-12-31
Northern Trust Corp	0.206%	-3.122%	25,138	-810	2021-03-31
Northern Trust Corp	0.206%	0.000%	25,138	0	2021-06-30
Northern Trust Corp	0.190%	0.000%	25,138	0	2021-09-30
Northern Trust Corp	0.176%	-7.554%	23,239	-1,899	2021-12-31
Clear Harbor Asset Management, LLC	0.159%	-3.014%	19,310	-600	2021-03-31
Clear Harbor Asset Management, LLC	0.155%	-2.382%	18,850	-460	2021-06-30
Morgan Dempsey Capital Management, LLC	0.154%	0.619%	20,305	125	2021-12-31
Morgan Dempsey Capital Management, LLC	0.153%	24.753%	20,180	4,004	2021-09-30
Morgan Dempsey Capital Management, LLC	0.133%	117.800%	16,176	8,749	2021-06-30
Clear Harbor Asset Management, LLC	0.132%	-7.480%	17,440	-1,410	2021-09-30
Clear Harbor Asset Management, LLC	0.132%	-0.229%	17,400	-40	2021-12-31
Annex Advisory Services, LLC	0.117%	48.993%	15,458	5,083	2021-12-31
CWA Asset Management Group, LLC	0.115%	6.474%	13,979	850	2021-03-31
Susquehanna International Group, LLP	0.095%	0.000%	12,613	12,613	2021-12-31
Advisor Group Holdings, Inc.	0.094%	-19.718%	11,400	-2,800	2021-03-31
Royal Alliance Associates Inc	0.094%	-19.718%	11,400	-2,800	2021-03-31
California Public Employees Retrmnt Sys	0.084%	-81.957%	10,228	-46,460	2021-06-30
Morgan Stanley - Brokerage Accounts	0.080%	4,750.000%	9,700	9,500	2021-03-31
Morgan Stanley - Brokerage Accounts	0.080%	0.000%	9,700	0	2021-06-30
Annex Advisory Services, LLC	0.079%	0.000%	10,375	10,375	2021-09-30
Greenhaven Road Investment Management, L.P.	0.078%	0.000%	10,254	10,254	2021-12-31
Advisor Group Holdings, Inc.	0.076%	16.279%	10,000	1,400	2021-09-30
Morgan Stanley - Brokerage Accounts	0.073%	0.010%	9,701	1	2021-09-30
Morgan Stanley - Brokerage Accounts	0.073%	-0.010%	9,700	-1	2021-12-31
Advisor Group Holdings, Inc.	0.071%	-24.561%	8,600	-2,800	2021-06-30
Morgan Dempsey Capital Management, LLC	0.061%	0.000%	7,427	7,427	2021-03-31
First Manhattan Company	0.050%	0.000%	6,150	6,150	2021-06-30
First Manhattan Company	0.047%	0.000%	6,150	0	2021-09-30
Emerald Investment Partners, LLC	0.022%	0.000%	2,683	0	2021-06-30
Emerald Investment Partners, LLC	0.022%	0.000%	2,683	2,683	2021-03-31
UBS Group AG	0.015%	0.000%	1,786	1,786	2021-03-31
Wells Fargo & Co	0.009%	-91.840%	1,074	-12,088	2021-03-31
Wells Fargo & Co	0.008%	-0.372%	1,070	-4	2021-09-30
Wells Fargo & Co	0.008%	0.000%	1,074	0	2021-06-30
Steward Partners Investment Advisory, LLC	0.008%	0.000%	1,000	1,000	2021-09-30
Eagle Bay Advisors LLC	0.002%	0.000%	242	242	2021-06-30
Patriot Financial Group Insurance Agency, LLC	0.001%	0.000%	120	0	2021-03-31

Mutual Fund Ownership

Heartland Value Investor is the biggest individual fund holder of Perma-Fix Environmental Services Inc (PESI), owning a total of 1 million shares. Combined, the top 156 mutual fund holders of PESI own 98.25% of the company with a total of 12.6 million shares.

In the latest ownership report, the top 156 mutual funds have decreased their combined ownership of PESI by 91 thousand shares, a 0.72% decrease from the quarter prior.

Mutual Funds Chart

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Heartland Value Investor	8.273%	0.000%	1,007,700	0	2021-03-31
Heartland Value Investor	7.896%	-4.559%	961,760	-45,940	2021-06-30
Heartland Value Investor	6.923%	-5.012%	913,560	-48,200	2021-09-30
Heartland Value Investor	6.531%	-5.534%	863,000	-50,560	2021-12-31
Heartland Value Investor	6.521%	0.000%	863,000	0	2022-03-31
Heartland Sm-Cap Val Strat	2.567%	0.192%	312,680	600	2021-03-31
Heartland Sm-Cap Val Strat	2.486%	-3.166%	302,780	-9,900	2021-06-30
Vanguard Total Stock Mkt Idx Inv	2.461%	12.423%	325,244	35,940	2021-12-31
Vanguard Total Stock Mkt Idx Inv	2.461%	0.000%	325,244	0	2022-01-31
Vanguard Total Stock Mkt Idx Inv	2.461%	0.000%	325,244	0	2022-02-28
Vanguard Total Stock Mkt Idx Inv	2.458%	0.000%	325,244	0	2022-03-31
Vanguard Total Stock Mkt Idx Inv	2.373%	0.000%	289,060	0	2021-06-30
Vanguard Total Stock Mkt Idx Inv	2.372%	0.084%	289,304	244	2021-09-30
Vanguard Total Stock Mkt Idx Inv	2.370%	0.000%	289,060	0	2021-07-31
Vanguard Total Stock Mkt Idx Inv	2.370%	0.000%	289,060	0	2021-08-31
Vanguard Total Stock Mkt Idx Inv	2.192%	0.000%	289,304	0	2021-10-31
Vanguard Total Stock Mkt Idx Inv	2.189%	0.000%	289,304	0	2021-11-30
Heartland Sm-Cap Val Strat	2.030%	1.511%	268,700	4,000	2022-03-31
Heartland Sm-Cap Val Strat	2.003%	0.838%	264,700	2,200	2021-12-31
Heartland Sm-Cap Val Strat	1.989%	-13.303%	262,500	-40,280	2021-09-30
Perritt MicroCap Opportunities Investor	1.018%	34.500%	134,500	34,500	2021-12-31
Perritt MicroCap Opportunities Investor	0.969%	-4.676%	128,211	-6,289	2022-03-31
Vanguard Extended Market Index Investor	0.826%	0.000%	100,598	0	2021-06-30
Vanguard Extended Market Index Investor	0.825%	0.000%	100,598	0	2021-07-31
Vanguard Extended Market Index Investor	0.825%	0.000%	100,598	0	2021-08-31
Vanguard Extended Market Index Investor	0.823%	-0.243%	100,354	-244	2021-09-30
Perritt MicroCap Opportunities Investor	0.774%	14.510%	94,222	11,939	2021-06-30
Vanguard Extended Market Index Investor	0.761%	0.000%	100,354	0	2021-10-31
Vanguard Extended Market Index Investor	0.759%	0.000%	100,354	0	2021-11-30
Perritt MicroCap Opportunities Investor	0.758%	6.132%	100,000	5,778	2021-09-30
Vanguard Extended Market Index Investor	0.756%	-0.455%	99,897	-457	2021-12-31
Vanguard Extended Market Index Investor	0.756%	0.000%	99,897	0	2022-01-31
Vanguard Extended Market Index Investor	0.756%	0.000%	99,897	0	2022-02-28
Vanguard Extended Market Index Investor	0.755%	0.000%	99,897	0	2022-03-31
Perritt MicroCap Opportunities Investor	0.676%	-21.953%	82,283	-23,145	2021-03-31
Ancora MicroCap I	0.402%	18.416%	49,010	7,622	2021-09-30
Ancora MicroCap I	0.371%	0.000%	49,010	0	2021-12-31
Ancora MicroCap I	0.371%	0.000%	49,010	0	2022-03-31
Ancora MicroCap I	0.340%	12.312%	41,388	4,537	2021-06-30
BlackRock Extended Equity Market K	0.223%	0.707%	27,201	191	2021-06-30
BlackRock Extended Equity Market K	0.222%	-0.353%	27,104	-96	2021-09-30
iShares Micro-Cap ETF	0.210%	8.143%	25,552	1,924	2021-09-30
BlackRock Extended Equity Market K	0.209%	1.778%	27,592	482	2022-03-31
iShares Micro-Cap ETF	0.209%	6.717%	27,582	1,736	2022-01-31
iShares Micro-Cap ETF	0.206%	0.000%	27,266	0	2022-02-28
BlackRock Extended Equity Market K	0.205%	0.022%	27,111	6	2021-12-31
iShares Micro-Cap ETF	0.203%	0.000%	26,792	0	2022-03-30
iShares Micro-Cap ETF	0.203%	0.000%	26,792	0	2022-03-31
iShares Micro-Cap ETF	0.201%	0.000%	26,634	0	2022-04-28
iShares Micro-Cap ETF	0.201%	0.000%	26,634	0	2022-04-29
iShares Micro-Cap ETF	0.199%	0.000%	26,287	0	2021-12-29
iShares Micro-Cap ETF	0.199%	0.000%	26,287	0	2021-12-31
iShares Micro-Cap ETF	0.198%	0.000%	26,140	0	2021-11-30
iShares Micro-Cap ETF	0.197%	0.000%	25,993	0	2021-10-29
Fidelity® Extended Market Index	0.196%	0.000%	23,883	0	2021-05-31
Fidelity® Extended Market Index	0.196%	0.000%	23,883	0	2021-06-30
Fidelity® Extended Market Index	0.196%	0.000%	23,883	0	2021-07-31
Fidelity® Extended Market Index	0.196%	0.000%	23,883	0	2021-08-31
Fidelity® Extended Market Index	0.181%	0.000%	23,883	0	2021-09-30
Fidelity® Extended Market Index	0.181%	0.000%	23,883	0	2021-10-31
Fidelity® Extended Market Index	0.180%	-0.255%	23,822	-61	2021-11-30
Fidelity® Extended Market Index	0.180%	0.000%	23,822	0	2021-12-31
Fidelity® Extended Market Index	0.180%	0.000%	23,822	0	2022-01-31
Fidelity® Extended Market Index	0.180%	0.000%	23,822	0	2022-02-28
Fidelity® Extended Market Index	0.180%	0.000%	23,822	0	2022-03-31
DFA US Core Equity 2 I	0.170%	0.000%	20,738	0	2021-05-31
DFA US Core Equity 2 I	0.170%	0.000%	20,738	0	2021-06-30
DFA US Core Equity 2 I	0.170%	0.000%	20,738	0	2021-07-31
DFA US Core Equity 2 I	0.170%	0.000%	20,738	0	2021-08-31
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2021-09-30
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2021-10-31
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2021-11-30
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2021-12-31
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2022-01-31
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2022-02-28
DFA US Core Equity 2 I	0.157%	0.000%	20,738	0	2022-03-31
Morgan Dempsey Micro Cap	0.137%	9.056%	18,052	1,499	2022-03-31
Morgan Dempsey Small/Micro-Cap Value	0.136%	25.525%	16,553	3,366	2021-09-30
DFA US Targeted Value I	0.127%	0.000%	15,435	0	2021-05-31
DFA US Targeted Value I	0.127%	0.000%	15,435	0	2021-06-30
DFA US Targeted Value I	0.127%	0.000%	15,435	0	2021-07-31
DFA US Targeted Value I	0.127%	0.000%	15,435	0	2021-08-31
Morgan Dempsey Micro Cap	0.125%	25.525%	16,553	3,366	2021-09-30
Morgan Dempsey Micro Cap	0.125%	0.000%	16,553	0	2021-12-31
BlackRock U.S. Equity Market F	0.121%	0.510%	14,794	75	2021-09-30
BlackRock U.S. Equity Market F	0.121%	0.602%	14,719	88	2021-06-30
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2021-09-30
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2021-10-31
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2021-11-30
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2021-12-31
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2022-01-31
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2022-02-28
DFA US Targeted Value I	0.117%	0.000%	15,435	0	2022-03-31
BlackRock U.S. Equity Market F	0.112%	0.352%	14,846	52	2021-12-31
BlackRock U.S. Equity Market F	0.112%	-0.256%	14,808	-38	2022-03-31
Morgan Dempsey Small/Micro-Cap Value	0.108%	117.931%	13,187	7,136	2021-06-30
NT Ext Equity Mkt Idx Fd - NL	0.089%	0.000%	10,806	0	2021-06-30
NT Ext Equity Mkt Idx Fd - NL	0.089%	0.000%	10,806	0	2021-09-30
Northern Trust Extended Eq Market Idx	0.085%	0.000%	10,345	0	2021-06-30
NT Ext Equity Mkt Idx Fd - L	0.085%	0.000%	10,345	0	2021-06-30
Northern Trust Extended Eq Market Idx	0.085%	0.000%	10,345	0	2021-09-30
NT Ext Equity Mkt Idx Fd - L	0.085%	0.000%	10,345	0	2021-09-30
Fidelity® NASDAQ Composite Index®	0.082%	0.000%	9,998	0	2021-05-31
Fidelity® NASDAQ Composite Index®	0.082%	0.000%	9,998	0	2021-06-30
Fidelity® NASDAQ Composite Index®	0.082%	0.000%	9,998	0	2021-07-31
Fidelity® NASDAQ Composite Index®	0.082%	0.000%	9,998	0	2021-08-31
NT Ext Equity Mkt Idx Fd - NL	0.082%	0.000%	10,806	0	2021-12-31
NT Ext Equity Mkt Idx Fd - NL	0.082%	0.000%	10,806	0	2022-03-31
Schwab Total Stock Market Index	0.079%	0.000%	10,441	10,441	2022-03-31
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2021-09-30
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2021-10-31
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2021-11-30
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2021-12-31
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2022-01-31
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2022-02-28
DFA US Core Equity 1 I	0.076%	0.000%	9,203	0	2021-05-31
DFA US Core Equity 1 I	0.076%	0.000%	9,203	0	2021-06-30
DFA US Core Equity 1 I	0.076%	0.000%	9,203	0	2021-07-31
DFA US Core Equity 1 I	0.076%	0.000%	9,203	0	2021-08-31
Fidelity® NASDAQ Composite Index®	0.076%	0.000%	9,998	0	2022-03-31
iShares Core S&P Total US Stock Mkt ETF	0.075%	0.000%	9,177	0	2021-09-30
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.075%	0.000%	9,152	0	2021-06-30
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.075%	0.000%	9,152	0	2021-07-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.075%	0.000%	9,152	0	2021-08-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.075%	0.000%	9,152	0	2021-09-30
iShares Core S&P Total US Stock Mkt ETF	0.075%	0.000%	9,090	0	2021-07-28
iShares Core S&P Total US Stock Mkt ETF	0.075%	0.000%	9,090	0	2021-07-30
iShares Core S&P Total US Stock Mkt ETF	0.074%	0.000%	9,075	0	2021-08-31
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.045%	8,858	4	2021-06-30
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.125%	9,611	12	2022-03-30
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.000%	9,611	0	2022-03-31
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.000%	9,617	0	2022-04-28
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.052%	9,622	5	2022-04-29
iShares Core S&P Total US Stock Mkt ETF	0.073%	0.000%	9,594	0	2022-01-31
iShares Core S&P Total US Stock Mkt ETF	0.072%	-0.739%	9,534	-71	2022-02-28
iShares Core S&P Total US Stock Mkt ETF	0.072%	0.116%	9,474	11	2021-12-29
iShares Core S&P Total US Stock Mkt ETF	0.072%	0.021%	9,476	2	2021-12-31
iShares Core S&P Total US Stock Mkt ETF	0.071%	0.000%	9,327	0	2021-10-29
iShares Core S&P Total US Stock Mkt ETF	0.071%	0.000%	9,341	0	2021-11-30
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2021-09-30
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2021-10-31
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2021-11-30
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2021-12-31
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2022-01-31
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2022-02-28
DFA US Core Equity 1 I	0.070%	0.000%	9,203	0	2022-03-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2021-10-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2021-11-30
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2021-12-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2022-01-31
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2022-02-28
Vanguard Instl Ttl Stk Mkt Idx InstlPls	0.069%	0.000%	9,152	0	2022-03-31
NT Ext Equity Mkt Idx Fd - DC - NL - T2	0.066%	8.154%	8,078	609	2021-03-31
Fidelity® Series Total Market Index	0.065%	0.000%	7,911	0	2021-05-31
Northern Trust Extended Eq Market Idx	0.064%	-18.357%	8,446	-1,899	2021-12-31
NT Ext Equity Mkt Idx Fd - L	0.064%	-18.357%	8,446	-1,899	2021-12-31