Air Transport Services Group, Inc.
Air Transport Services Group, Inc. (ATSG) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ATSG · as of Mar 31, 2025
Ownership Breakdown
198
Institutional Holders
▼ 3 vs Q4
$1.63B
Total Inst. Value
▲ $254.85M vs Q4
65.89M
Shares Outstanding
freeFloat 70.88%
68.27M
13F Shares Held
▲ 5.69M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ATSG largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
AMAZON COM INC air courier services | 12.74M | 19.59% | 19.59% | $285.92B | May 6, 2025 | — held |
VANGUARD GROUP INC air courier services | 5.80M | 8.92% | 8.92% | $130.17B | May 9, 2025 | ▼ 60.3K |
GLAZER CAPITAL, LLC air courier services | 4.23M | 6.51% | 6.51% | $94.95B | May 15, 2025 | ▲ 1.75M |
BLACKROCK, INC. air courier services | 3.89M | 5.98% | 5.98% | $87.22B | May 2, 2025 | ▼ 290.7K |
FIL LTD air courier services | 2.64M | 4.05% | 4.05% | $59.14B | May 12, 2025 | ▲ 1.22M |
UBS GROUP AG air courier services | 2.35M | 3.61% | 3.61% | $52.63B | May 13, 2025 | ▲ 2.02M |
AMERICAN CENTURY COMPANIES INC air courier services | 2.28M | 3.51% | 3.51% | $51.21B | May 13, 2025 | ▼ 1.9K |
TIG ADVISORS, LLC air courier services | 2.13M | 3.27% | 3.27% | $47.77B | May 15, 2025 | ▲ 796.4K |
DIMENSIONAL FUND ADVISORS LP air courier services | 1.65M | 2.54% | 2.54% | $37.04B | May 13, 2025 | ▼ 1.92M |
FIRST TRUST CAPITAL MANAGEMENT L.P. air courier services | 1.62M | 2.49% | 2.49% | $36.30B | Jul 25, 2025 | ▲ 376.1K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
28
Increased
+12.70M shares5
New Positions
first time holders15
Decreased
−4.03M shares0
Sold Out
fully exitedNet shares change (top 50)
+8.67M
+12.70M / −4.03M
Net new holders
+18
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ATSG insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
3
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
HETE JOSEPH C Executive Chairman | Apr 11, 2025 | Award | 115,375 | — | — | 115.4K | Form 4 ↗ |
HETE JOSEPH C Executive Chairman | Apr 11, 2025 | D-Return | 596,622 | $22.50 | $13.42M | 101.0K | Form 4 ↗ |
HETE JOSEPH C Executive Chairman | Apr 11, 2025 | D-Return | 5,293 | $22.50 | $119.1K | 0 | Form 4 ↗ |
Rademacher Randy D director | Apr 11, 2025 | D-Return | 84,955 | $22.50 | $1.91M | 0 | Form 4 ↗ |
Berger Michael L Chief Executive Officer | Apr 11, 2025 | Award | 81,480 | — | — | 81.5K | Form 4 ↗ |
Berger Michael L Chief Executive Officer | Apr 11, 2025 | D-Return | 105,172 | $22.50 | $2.37M | 47.5K | Form 4 ↗ |
Berger Michael L Chief Executive Officer | Apr 11, 2025 | D-Return | 81,480 | $22.50 | $1.83M | 0 | Form 4 ↗ |
Teets John Christopher director | Apr 11, 2025 | D-Return | 120,571 | $22.50 | $2.71M | 0 | Form 4 ↗ |
VORHOLT JEFFREY J director | Apr 11, 2025 | D-Return | 97,355 | $22.50 | $2.19M | 0 | Form 4 ↗ |
CAMPBELL PHYLLIS J director | Apr 11, 2025 | D-Return | 14,150 | $22.50 | $318.4K | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Air Transport Services Group, Inc. (ATSG) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 29.12%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Air Transport Services Group, Inc. is AMAZON COM INC, holding approximately 12.74 million shares — equal to 19.59% of outstanding shares — as of March 31, 2025.
A total of 198 institutional investors currently hold ATSG stock, with a combined institutional value of approximately $1.63 billion as of the most recent 13F filing period.
Frequently asked questions
ATSG ownershipAir Transport Services Group, Inc. (ATSG) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is AMAZON COM INC with a 19.59% stake. Company insiders hold 29.12%. Data sourced from SEC Form 13F as of March 31, 2025.