Skip to content

AAT AMERICAN ASSETS TR INC

Follow

REIT (common), issuer CIK 1500217

224 managers (229 13F filers) reported a position in AAT shares at 2025-12-31, 57,630,018 shares in all. 21 filers opened a position and 29 filers sold out during the quarter.

Managers
224
13F filers
229
New
21
Added
72
Reduced
102
Sold out
29
Shares held by filers
57,630,018

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.9,315,595$176M<0.01%+189,69713F-HRTimelineGroup
American Assets Investment Management, …group of 2 filers holding8,851,939$168M+2,004Timeline
VANGUARD GROUP INCgroup of 2 filers holding7,677,140$145M+122,882Timeline
Senvest Management, LLC2,929,436$55.5M1.72%+1,125,47413F-HRTimeline
STATE STREET CORPin group STATE STREET CORP2,897,393$54.8M<0.01%-24,91613F-HRTimelineGroup
LSV ASSET MANAGEMENT1,845,156$34.9M0.08%+16,36013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,365,399$25.8M<0.01%-37,26613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,323,969$25.1M<0.01%+27113F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,283,744$23.9M0.01%+119,05913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,082,083$20.5M<0.01%-147,63713F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …1,035,707$19.6M0.01%-149,79313F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY955,303$18.1M<0.01%-53,93213F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP768,287$14.5M<0.01%-44,19913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP717,906$13.6M<0.01%+12,12213F-HRTimelineGroup
Nuveen, LLCin group TIAA653,271$12.4M<0.01%-312,50513F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.649,695$12.3M<0.01%+181,90013F-HRTimelineGroup
ALGERT GLOBAL LLC559,174$10.6M0.17%+152,61213F-HR/ATimeline
KENNEDY CAPITAL MANAGEMENT LLC554,930$10.5M0.22%+83,09413F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC499,845$9.46M<0.01%-48,31513F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp498,042$9.43M<0.01%+43,80313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding467,233$8.84M+211,408Timeline
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC410,729$7.78M0.02%+3,48013F-HRTimeline
WATERFALL ASSET MANAGEMENT, LLC406,033$7.7M4.15%+91,39013F-HRTimeline
FULLER & THALER ASSET MANAGEMENT, INC.404,709$7.66M0.03%+114,77213F-HR/ATimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP399,718$7.57M0.01%+135,42513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc379,363$7.18M<0.01%+36,96613F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC350,794$6.64M<0.01%-230,68413F-HR/ATimelineGroup
PANAGORA ASSET MANAGEMENT INC316,387$5.99M0.02%+13,05813F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding297,145$5.62M+21,029Timeline
Allianz Asset Management GmbHin group Allianz SE289,599$5.48M0.01%-363,70013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding284,735$5.39M+262,735Timeline
STRS OHIO281,600$5.33M0.02%+271,80013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC275,702$5.22M<0.01%-218,13013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC270,362$5.12M<0.01%-8,86713F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC268,733$5.09M0.03%+34,48113F-HRTimeline
FMR LLCin group FMR LLC265,358$5.02M<0.01%+48,17013F-HRTimelineGroup
NORGES BANK257,700$4.88M<0.01%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…218,168$4.13M<0.01%-6,93613F-HRTimelineGroup
Argosy-Lionbridge Management, LLC214,863$4.07M2.57%013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC205,321$3.89M<0.01%+24,18113F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …204,385$3.87M0.01%+2,07213F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/191,469$3.62M<0.01%-18,89713F-HRTimelineGroup
Man Group plcin group Man Group plc172,588$3.27M0.01%+92,71013F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC167,625$3.17M<0.01%+167,29513F-HRTimelineGroup
Public Sector Pension Investment Board163,630$3.1M0.01%-20,54413F-HRTimeline
RHUMBLINE ADVISERS156,691$2.97M<0.01%-4,22113F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC154,735$2.93M<0.01%-3,61213F-HRTimelineGroup
Qube Research & Technologies Ltd146,991$2.78M<0.01%-251,51113F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC139,193$2.63M0.01%-2,33813F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC128,851$2.44M<0.01%+14,69313F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …125,571$2.38M<0.01%+95,44713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co123,017$2.33M<0.01%-18,88113F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P119,397$2.26M0.06%+10,21013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC109,100$2.07M<0.01%+16,40013F-HRTimeline
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding108,540$2.05M+41,400Timeline
FRANKLIN RESOURCES INCin group Franklin Resources99,271$1.88M<0.01%+48,83013F-HRTimelineGroup
Swiss National Bank96,500$1.83M<0.01%+1,70013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/91,767$1.74M<0.01%+35,54313F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd87,474$1.66M0.04%new13F-HRTimeline
IEQ CAPITAL, LLC82,153$1.56M<0.01%-8,62213F-HRTimeline
ALLIANCEBERNSTEIN L.P.81,016$1.53M<0.01%-39,19213F-HRTimeline
CITIGROUP INCin group CITIGROUP INC80,825$1.53M<0.01%+28,23713F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC78,805$1.49M<0.01%-4,94913F-HR/ATimelineGroup
Anson Funds Management LPin group Anson Funds Management LP75,785$1.43M0.19%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\69,253$1.31M<0.01%+47913F-HRTimelineGroup
Asset Management One Co., Ltd.68,165$1.3M<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…67,392$1.28M<0.01%-47913F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC63,846$1.21M<0.01%+9,09013F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC62,802$1.19M<0.01%-8,45013F-HRTimelineGroup
DENALI ADVISORS LLC62,800$1.19M0.13%013F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…62,735$1.19M<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN62,659$1.19M<0.01%+21,63913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…61,206$1.16M<0.01%-8,14413F-HRTimelineGroup
Penserra Capital Management LLCin group Penserra Capital Management L…59,637$1.13M0.01%+3,91713F-HRTimelineGroup
New Age Alpha Advisors, LLC57,551$1.09M0.05%+20,18413F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO55,907$1.06M<0.01%+5,60113F-HRTimelineGroup
Sumitomo Mitsui Trust Group, Inc.in group Sumitomo Mitsui Trust Group, …55,069$1.04M<0.01%-67913F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC54,100$1.02M0.02%-42,00013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC52,812$1000K0.01%-36,72713F-HRTimelineGroup
State of Alaska, Department of Revenue52,626$995K0.01%+48313F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA51,920$982K<0.01%+13,29913F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP48,816$924K0.04%-55,88613F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/45,587$863K<0.01%+1,81813F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC45,471$861K<0.01%+71213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…45,143$855K<0.01%-31113F-HRTimeline
DekaBank Deutsche Girozentrale35,179$837K<0.01%013F-HRTimeline
Summit Global Investmentsin group Summit Global Investments41,855$792K0.05%-5513F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd40,694$770K0.02%new13F-HRTimelineGroup
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…40,974$769K<0.01%+5,93313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND35,012$663K<0.01%-1,87913F-HRTimeline
AlphaCentric Advisors LLC35,000$663K0.66%13F-HRTimeline
Crossingbridge Advisors, LLC35,000$662K0.19%013F-HRTimeline
SG Americas Securities, LLC33,540$635K<0.01%+2,55813F-HRTimeline
Graham Capital Management, L.P.32,870$622K0.02%-1,07913F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…32,495$615K<0.01%-813F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…32,450$614K<0.01%-1,62013F-HRTimelineGroup
Amundiin group Amundi32,162$609K<0.01%-2,49513F-HRTimelineGroup
GLOBEFLEX CAPITAL L P31,861$603K0.09%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…30,665$580K<0.01%-2,86013F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC29,742$563K0.05%+2,66313F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD29,457$558K<0.01%-37,40013F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV28,568$541K<0.01%-11,38613F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…28,363$537K<0.01%-33513F-HRTimeline
Quantinno Capital Management LP27,041$512K<0.01%+6,23213F-HRTimeline
Illinois Municipal Retirement Fund26,557$503K0.01%+1,03913F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…26,544$502K<0.01%-3,91613F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding25,609$485K+373Timeline
AlphaQuest LLC25,511$483K0.03%-44,80313F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC25,497$483K<0.01%-15,90613F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.25,173$477K0.07%+3,53813F-HRTimeline
Engineers Gate Manager LP24,994$473K0.01%+7,59413F-HRTimeline
EVOLVE PRIVATE WEALTH, LLC24,916$472K0.03%13F-HRTimeline
Sterling Capital Management LLC23,917$453K0.01%+85513F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …22,960$435K<0.01%-1,50313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC22,826$432K<0.01%013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD22,751$431K<0.01%-1,92213F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson22,453$425K<0.01%013F-HRTimelineGroup
Odyssean, LLC21,850$414K0.3%13F-HRTimeline
Louisiana State Employees Retirement Sy…21,600$409K0.01%-10013F-HRTimeline
HighTower Advisors, LLC21,560$408K<0.01%+74913F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC21,478$407K<0.01%-2,91713F-HRTimelineGroup
Vert Asset Management LLC21,276$403K0.13%+40713F-HRTimeline
CWM, LLCin group CWM, LLC20,898$396K<0.01%-8,87213F-HRTimelineGroup
ExodusPoint Capital Management, LP20,585$390K<0.01%-43,85213F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al20,493$388K<0.01%-3,20013F-HRTimeline
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…20,190$385K<0.01%-95413F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC19,986$379K<0.01%-4,30213F-HRTimelineGroup
State of Tennessee, Department of Treas…20,172$364K<0.01%-2,00413F-HRTimeline
Creative Planningin group Creative Planning18,739$355K<0.01%-92813F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc18,421$349K<0.01%+85313F-HRTimelineGroup
Handelsbanken Fonder AB18,102$343K<0.01%+3,30013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.17,959$340K<0.01%+1,01613F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC16,693$316K<0.01%-1,90413F-HRTimelineGroup
One Wealth Advisors, LLC16,612$314K0.04%+14813F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP16,472$311K<0.01%+1,64113F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,371$291K0.01%new13F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD15,200$288K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS15,147$287K<0.01%-48313F-HRTimelineGroup
DIVERSIFIED TRUST CO14,988$284K0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…14,859$276K<0.01%-3,74213F-HRTimeline
Police & Firemen's Retirement System of…14,415$273K<0.01%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC14,221$269K<0.01%-13,97913F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…13,937$264K<0.01%013F-HRTimeline
AMALGAMATED BANK13,871$263K<0.01%-14513F-HRTimeline
Mystic Asset Management, Inc.13,760$260K0.06%+1,20013F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT13,694$259K<0.01%-6,95013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM13,639$258K<0.01%-83313F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC12,831$232K<0.01%-1,86413F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…12,035$228K<0.01%-1,55913F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC11,419$216K<0.01%new13F-HRTimelineGroup
LPL Financial LLC11,318$214K<0.01%new13F-HRTimeline
Coppell Advisory Solutions LLC8,309$206K0.02%-5,00213F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND10,806$205K<0.01%+17213F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.10,752$204K<0.01%-49,21413F-HRTimelineGroup
Metis Global Partners, LLC10,649$202K<0.01%013F-HRTimeline
VARCOV Co.10,451$198K0.08%13F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…10,429$197K<0.01%013F-HRTimelineGroup
KLP KAPITALFORVALTNING AS10,400$197K<0.01%-1,30013F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC10,394$197K<0.01%-1,68013F-HRTimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC10,369$196K<0.01%-53813F-HRTimeline
UniSuper Management Pty Ltd10,300$195K<0.01%-3,40013F-HRTimeline
ProShare Advisors LLC10,058$190K<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC9,269$175K0.01%-50613F-HRTimeline
NISA INVESTMENT ADVISORS, LLC8,362$158K<0.01%-2,83913F-HRTimeline
EMC Capital Management7,421$140K0.06%-1,31013F-HRTimeline
CHILTON CAPITAL MANAGEMENT LLC6,300$119K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…5,758$109K<0.01%+83313F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,346$82.3K<0.01%013F-HRTimelineGroup
Federation des caisses Desjardins du Qu…4,154$78.6K<0.01%+89313F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,201$60.6K<0.01%-93413F-HRTimelineGroup
Ensign Peak Advisors, Inc2,557$48.4K<0.01%-8,25013F-HR/ATimeline
US BANCORP \DE\in group US BANCORP \DE\2,309$43.7K<0.01%-2013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,576$29.8K<0.01%-71313F-HRTimelineGroup
Covestor Ltd1,320$25K0.01%-3013F-HRTimeline
Smartleaf Asset Management LLC1,312$25K<0.01%-11513F-HRTimeline
Versant Capital Management, Inc1,139$21.6K<0.01%+33813F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.1,101$21K<0.01%-69413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Essential Partners LLC1,070$20.3K0.01%-1,06713F-HRTimeline
Brookfield Corp /ON/in group Brookfield Corp /ON/981$18.6K<0.01%013F-HRTimelineGroup
SIGNATUREFD, LLC849$16.1K<0.01%-2113F-HRTimeline
GF FUND MANAGEMENT CO. LTD.801$15.2K<0.01%-413F-HRTimeline
GAMMA Investing LLC692$13.1K<0.01%-26913F-HRTimeline
Pinnacle Wealth Planning Services, Inc.658$12.5K<0.01%new13F-HRTimeline
Aster Capital Management (DIFC) Ltd498$9.43K<0.01%+38713F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…453$8.57K<0.01%-21313F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.420$8K<0.01%-713F-HRTimeline
Farther Finance Advisors, LLC405$7.67K<0.01%+27213F-HRTimeline
Allworth Financial LP338$6.4K<0.01%-28213F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK327$6.19K<0.01%013F-HRTimelineGroup
Salomon & Ludwin, LLC323$5.98K<0.01%-6413F-HRTimeline
IFP Advisors, Inc315$5.96K<0.01%-2213F-HRTimeline
UMB Bank, n.a.302$5.72K<0.01%+9913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
SageView Advisory Group, LLC259$4.9K<0.01%new13F-HRTimeline
ROTHSCHILD INVESTMENT LLC256$4.85K<0.01%-13313F-HRTimeline
Quarry LP255$4.83K<0.01%-41213F-HRTimeline
Sound Income Strategies, LLC262$4.7K<0.01%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC228$4.36K<0.01%new13F-HRTimeline
Parallel Advisors, LLC203$3.84K<0.01%-8413F-HRTimeline
MassMutual Private Wealth & Trust, FSB199$3.77K<0.01%-15413F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.176$3.34K<0.01%-11713F-HRTimelineGroup