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Of the 14 tracked institutions holding ATRO, 7 have a 3-year clone track record — 7 of them beat the S&P. Average holder's clone alpha: +6.3pt. It's a gauge of who owns the name, not just how many.
Among the 14 tracked institutional investors we monitor, ATRO (ASTRONICS CORP) is held with a combined value of $573.23M across 9,035,523 shares. The largest holder is BlackRock, Inc. with a position worth $188.54M. Magnetar Financial LLC opened a new position in the most recent quarter. 8 funds increased their holdings. 5 funds reduced their position.
Total Institutional Value
$573.23M
Total Shares Held
9,035,523
Institutional Holders
14
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $188.54M | 0.00% | +1.0% |
| 2 | STATE STREET CORP | $156.80M | 0.01% | +28.3% |
| 3 | VANGUARD GROUP INC | $107.16M | 0.00% | +2.0% |
| 4 | Point72 Asset Management, L.P. | $37.85M | 0.07% | +14.1% |
| 5 | Fisher Asset Management, LLC | $23.28M | 0.01% | +475.3% |
| 6 | AQR CAPITAL MANAGEMENT LLC | $16.50M | 0.01% | -4.2% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $14.88M | 0.02% | +320.4% |
| 8 | MILLENNIUM MANAGEMENT LLC | $14.68M | 0.01% | -39.0% |
| 9 | CITADEL ADVISORS LLC | $6.43M | 0.00% | -69.5% |
| 10 | Magnetar Financial LLC | $2.46M | 0.02% | New |
| Member | Type | Date |
|---|---|---|
| Thomas R Tillis | Sell | Feb 13, 2015 |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ATRO with a position worth $188.54M, representing 0.00% of their portfolio. In total, 14 institutional investors hold ATRO with a combined value of $573.23M.
In the most recent quarter, 1 fund opened a new position in ATRO. Additionally, 8 increased their holdings and 5 reduced their positions.
Institutional investors hold $573.23M worth of ATRO stock across 14 positions. The largest institutional holder is BlackRock, Inc. with $188.54M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ATRO, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ATRO positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$69.85
2026-07-24
YTD
+45.1%
72% of 52-week range
