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Institutional Holdings of AIR TRANSPORT SERVICES GROUP, INC (ATSG) on 12/31/2011

1. Company Information

Company/StockAIR TRANSPORT SERVICES GROUP, INC (stock symbol: ATSG)
Funds Ownership102 out of total 3028 funds (3%) own this stock
Funds own total 50,534,378 shares, 78.76% of all outstanding shares
Funds BOUGHT 399,602 more shares (+0.80%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held ATSG in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)RED MOUNTAIN CAPITAL PARTNERS LLC9,552,730Unchanged21.43%14.89%
2.)PRESCOTT GROUP CAPITAL MANAGEMENT LLC5,420,629Unchanged6.12%8.45%
3.)NORTHPOINTE CAPITAL LLC4,823,070Added 6.07%2.32%7.52%
4.)DIMENSIONAL FUND ADVISORS INC2,765,670Added 0.35%0.02%4.31%
5.)VANGUARD GROUP INC2,457,716Added 7.41%0.00%3.83%
6.)KENNEDY CAPITAL MANAGEMENT INC2,140,033Added 2.52%0.29%3.34%
7.)PRIVATE CAPITAL MANAGEMENT1,971,873Added 3.25%0.70%3.07%
8.)ALLIANCEBERNSTEIN LP1,565,055Cut -4.06%0.01%2.44%
9.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA1,493,591Added 3.85%0.00%2.33%
10.)FMR LLC1,279,248Cut -0.24%0.00%1.99%
11.)BLACKROCK FUND ADVISORS1,194,502Added 4.48%0.00%1.86%
12.)LSV ASSET MANAGEMENT1,131,300Added 0.62%0.02%1.76%
13.)STATE STREET CORP1,128,208Added 4.97%0.00%1.76%
14.)ROBECO INVESTMENT MANAGEMENT INC1,044,920Added 45.64%0.02%1.63%
15.)HARRIS FINANCIAL CORP971,675Added 2.47%0.01%1.51%
16.)NORDEA INVESTMENT MANAGEMENT AB861,689Unchanged0.03%1.34%
17.)WELLS FARGO & CO MN808,240Cut -2.06%0.00%1.26%
18.)LOMBARDIA CAPITAL PARTNERS LLC733,264New0.13%1.14%
19.)AQR CAPITAL MANAGEMENT LLC718,000Cut -21.58%0.02%1.12%
20.)NORTHERN TRUST CORP686,214Cut -0.18%0.00%1.07%



3. Top 20 Funds Held ATSG in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)RED MOUNTAIN CAPITAL PARTNERS LLC9,552,730Unchanged21.43%14.89%
2.)PRESCOTT GROUP CAPITAL MANAGEMENT LLC5,420,629Unchanged6.12%8.45%
3.)NORTHPOINTE CAPITAL LLC4,823,070Added 6.07%2.32%7.52%
4.)OMT CAPITAL MANAGEMENT LLC495,410Added 10.54%1.49%0.77%
5.)KEANE CAPITAL MANGEMENT INC400,000New1.43%0.62%
6.)PRIVATE CAPITAL MANAGEMENT1,971,873Added 3.25%0.70%3.07%
7.)TRUE BEARING ASSET MANAGEMENT LP197,386Cut -32.61%0.55%0.31%
8.)HENNESSY ADVISORS INC421,500Cut -4.57%0.35%0.66%
9.)KENNEDY CAPITAL MANAGEMENT INC2,140,033Added 2.52%0.29%3.34%
10.)CORSAIR CAPITAL MANAGEMENT LLC166,971Added 66.97%0.20%0.26%
11.)TECHNICAL FINANCIAL SERVICES LLC626,606Added 15.73%0.17%0.98%
12.)ALGERT COLDIRON INVESTORS LLC96,553New0.15%0.15%
13.)LOMBARDIA CAPITAL PARTNERS LLC733,264New0.13%1.14%
14.)SPARK LP DE101,100Added 96.31%0.12%0.16%
15.)ZEBRA CAPITAL MANAGEMENT LLC18,720Added 41.70%0.05%0.03%
16.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS348,125Cut -3.25%0.04%0.54%
17.)MARTINGALE ASSET MANAGEMENT L P123,740Added 0.00%0.04%0.19%
18.)NORDEA INVESTMENT MANAGEMENT AB861,689Unchanged0.03%1.34%
19.)GREAT OAKS CAPITAL MANAGEMENT LLC19,900Cut -4.78%0.03%0.03%
20.)ZACKS INVESTMENT MANAGEMENT86,985New0.03%0.14%

4. Top 20 Funds BOUGHT NEW ATSG in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)LOMBARDIA CAPITAL PARTNERS LLC733,2640.13%1.14%
2.)KEANE CAPITAL MANGEMENT INC400,0001.43%0.62%
3.)NEW YORK STATE COMMON RETIREMENT FUND109,6220.00%0.17%
4.)ALGERT COLDIRON INVESTORS LLC96,5530.15%0.15%
5.)ZACKS INVESTMENT MANAGEMENT86,9850.03%0.14%
6.)GENERAL MOTORS INVESTMENT MANAGEMENT CORP27,5160.01%0.04%
7.)WEXFORD CAPITAL LLC23,7000.01%0.04%
8.)VIRGINIA RETIREMENT SYSTEMS ET AL23,2000.00%0.04%
9.)JACOBS LEVY EQUITY MANAGEMENT INC22,1000.00%0.03%
10.)SAC CAPITAL ADVISORS LP17,0700.00%0.03%
11.)ANALYTIC INVESTORS INC CA13,7610.00%0.02%
12.)J P MORGAN CHASE & CO13,1070.00%0.02%
13.)FEDERATED INVESTORS INC PA 10,5000.00%0.02%
14.)CLARIVEST ASSET MANAGEMENT LLC5,0000.00%0.01%
15.)FINANCIAL NETWORK GROUP LTD2,0000.01%0.00%
16.)CREATIVE PLANNING1,8530.00%0.00%

5. Top 20 Funds SOLD OUT ATSG in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)TIG ADVISORS LLC346,4000.26%0.54%
2.)BOGLE INVESTMENT MANAGEMENT L P DE 311,7010.34%0.49%
3.)PABRAI MOHNISH134,3470.23%0.21%
4.)PORTOLAN CAPITAL MANAGEMENT LLC102,1710.13%0.16%
5.)BRANDYWINE ASSET MANAGEMENT LLC66,8700.00%0.10%
6.)CITADEL ADVISORS LLC56,8900.00%0.09%
7.)AXA FINANCIAL INC25,5200.00%0.04%
8.)JOHNSON INVESTMENT COUNSEL INC15,9000.00%0.02%
9.)SCHRODER INVESTMENT MANAGEMENT GROUP2,3030.00%0.00%