Comparable stake leader
BlackRock, Inc.
SEC ownership of ASTRONICS CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000008063.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- ATRO on Nasdaq, ATROB on OTC
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000008063
- Issuer location
- East Aurora, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ASTRONICS CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
Lead comparable stake: 8.7%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 8.7%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
8.7%
STATE STREET CORP
7.4%
AMERICAN CENTURY INVESTMENT MANAG...
5.6%
VANGUARD CAPITAL MANAGEMENT LLC
5.1%
NEXT CENTURY GROWTH INVESTORS LLC
4.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
8.7%
from 13D/G
|
$188,539,610
2,825,410 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13D/G
13F
STATE STREET CORPORATION · Company
|
7.4%
|
$170,338,089
2,349,815 shares
|
+$37,523,434 | 31 Mar 2026 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC |
13D/G
|
5.6%
|
$95,692,106
1,764,235 shares
|
$0 | 31 Dec 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.1%
|
$107,917,224
1,617,222 shares
|
$0 | 31 Mar 2026 |
| NEXT CENTURY GROWTH INVESTORS LLC |
13F
13D/G
Company
|
4.8%
from 13D/G
|
$52,470,933
786,317 shares
|
— | 31 Mar 2026 |
| Capital International Investors |
13D/G
13F
Company
|
4%
|
$93,435,768
1,288,947 shares
|
-$40,662,468 | 31 Mar 2026 |
| ACK Asset Management LLC |
13D/G
|
4%
|
$56,862,900
1,230,000 shares
|
$0 | 30 Sep 2025 |
| GOLDMAN SACHS GROUP INC |
13F
13D/G
Company · THE GOLDMAN SACHS GROUP, INC.
|
0.7%
from 13D/G
|
$30,365,754
455,054 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$561,315.
Buys
$0
Insiders: 0
Sells
$561,315
Insiders: 1
Net
-$561,315
Shares: -10,863
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 10,863
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 9,734 | $0 | $518,238 | -$518,238 |
| 9-12 | 0 | 1,129 | $0 | $43,077 | -$43,077 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-18 of 18 reporting-owner rows connected to ASTRONICS CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Peter J. Gundermann
Net 12M change
-$561,315
Latest report
15 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Peter J. Gundermann | PRESIDENT/CEO, Director | $73,175,708 | Mixed | 15 Jun 2026 | ||
| BRADY ROBERT T | Director | $23,839,241 | Mixed | 15 Jun 2026 | ||
| Robert Sprague Keane | Director | $21,791,780 | Mixed | 15 Jun 2026 | ||
| Mark Peabody | Executive VP & Pres-Aerospace | $18,597,204 | Mixed | 15 Jun 2026 | ||
| James S. Kramer | VP Luminescent Systems, Inc. | $11,913,272 | Mixed | 30 Sep 2024 | ||
| David C. Burney | Vp Finance, Cfo | $6,998,469 | Mixed | 30 Sep 2024 | ||
| James Mulato | Pres Astronics Test Systems | $2,083,669 | -$561,315 | -21% | Mixed | 15 Jun 2026 |
| Nancy L. Hedges | Principal Accounting Officer | $2,001,283 | Mixed | 15 Jun 2026 | ||
| Neil Y. Kim | Director | $1,295,181 | Mixed | 15 Jun 2026 | ||
| Warren C. Johnson | Director | $1,273,085 | Mixed | 15 Jun 2026 | ||
| Jeffry D. Frisby | Director | $1,230,417 | Mixed | 15 Jun 2026 | ||
| Mark J. Moran | Director | $1,116,077 | Mixed | 15 Jun 2026 | ||
| Raymond W. Boushie | Director | $775,520 | Mixed | 23 Feb 2023 | ||
| Michael C. Kuehn | Executive Vice President | $575,273 | Mixed | 10 May 2024 | ||
| Linda O'Brien | Director | $561,708 | Mixed | 15 Jun 2026 | ||
| Tonit M. Calaway | Director | $243,815 | Mixed | 31 May 2022 | ||
| Fay West | Director | $175,062 | Mixed | 15 Jun 2026 | ||
| Julie M. Davis | Secretary | $138,779 | Median | 15 Jun 2026 |
Recent insider transactions for ASTRONICS CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Mark Peabody | ATRO | $.01 PV CL B STK | Other | 26.8% | 49,165 | 232,610 | 15 Jun 2026 | Direct | ||
| Mark Peabody | ATRO | Restricted Stock Unit | Other | 7,745 | 3,180 | 15 Jun 2026 | Direct | |||
| Mark Peabody | ATRO | Option | Other | 23,246 | 5,340 | 15 Jun 2026 | Direct | |||
| Neil Y. Kim | ATRO | $.01 PV CL B STK | Other | 8,811 | 8,811 | 15 Jun 2026 | Direct | |||
| Neil Y. Kim | ATRO | Option | Other | 153.3% | 920 | 1,520 | 15 Jun 2026 | Direct | ||
| Warren C. Johnson | ATRO | $.01 PV CL B STK | Other | 9,951 | 9,951 | 15 Jun 2026 | Direct | |||
| Warren C. Johnson | ATRO | Option | Other | 153.3% | 920 | 1,520 | 15 Jun 2026 | Direct | ||
| Robert Sprague Keane | ATRO | $.01 PV CL B STK | Other | 49.8% | 83,016 | 249,838 | 15 Jun 2026 | Note | ||
| Robert Sprague Keane | ATRO | $.01 PV CL B STK | Other | 2,786 | 2,786 | 15 Jun 2026 | Direct | |||
| Mark J. Moran | ATRO | $.01 PV CL B STK | Other | 8,811 | 8,811 | 15 Jun 2026 | Direct | |||
| Julie M. Davis | ATRO | $.01 PV CL B STK | Other | 254.7% | 1,620 | 2,256 | 15 Jun 2026 | Direct | ||
| Julie M. Davis | ATRO | Restricted Stock Unit | Other | 1,783 | 900 | 15 Jun 2026 | Direct | |||
| Julie M. Davis | ATRO | Option | Other | 160.1% | 570 | 926 | 15 Jun 2026 | Direct | ||
| Nancy L. Hedges | ATRO | $.01 PV CL B STK | Other | 518% | 6,666 | 7,953 | 15 Jun 2026 | Direct | ||
| Nancy L. Hedges | ATRO | Restricted Stock Unit | Other | 6,974 | 3,540 | 15 Jun 2026 | Direct | |||
| Fay West | ATRO | $.01 PV CL B STK | Other | 1,517 | 1,517 | 15 Jun 2026 | Direct | |||
| Jeffry D. Frisby | ATRO | $.01 PV CL B STK | Other | 9,411 | 9,411 | 15 Jun 2026 | Direct | |||
| Jeffry D. Frisby | ATRO | Option | Other | 153.3% | 920 | 1,520 | 15 Jun 2026 | Direct | ||
| Peter J. Gundermann | ATRO | $.01 PV CL B STK | Other | 22.5% | 168,375 | 916,286 | 15 Jun 2026 | Direct | ||
| Peter J. Gundermann | ATRO | Restricted Stock Unit | Other | 12,770 | 5,290 | 15 Jun 2026 | Direct | |||
| Peter J. Gundermann | ATRO | Option | Other | 134,402 | 25,000 | 15 Jun 2026 | Direct | |||
| Linda O'Brien | ATRO | $.01 PV CL B STK | Other | 240 | 240 | 15 Jun 2026 | Spouse | |||
| Linda O'Brien | ATRO | $.01 PV CL B STK | Other | 4,274 | 4,274 | 15 Jun 2026 | Direct | |||
| James Mulato | ATRO | $.01 PV CL B STK | Other | 311.7% | 7,645 | 10,098 | 15 Jun 2026 | Direct | ||
| James Mulato | ATRO | Restricted Stock Unit | Other | 8,785 | 3,710 | 15 Jun 2026 | Direct | |||
| James Mulato | ATRO | Option | Other | 30,000 | 7,120 | 15 Jun 2026 | Direct | |||
| Brady Robert T | ATRO | $.01 PV CL B STK | Other | 30.1% | 53,085 | 229,451 | 15 Jun 2026 | Direct | ||
| Brady Robert T | ATRO | Option | Other | 153.3% | 920 | 1,520 | 15 Jun 2026 | Direct | ||
| Julie M. Davis | ATRO | $.01 PV Com Stk | Tax liability | -16.5% | -1,472 | 7,466 | 03 Mar 2026 | Direct | ||
| Julie M. Davis | ATRO | $.01 PV Com Stk | Options Exercise | 50.5% | 3,000 | 8,938 | 03 Mar 2026 | Direct | ||
| Julie M. Davis | ATRO | Restricted Stock Unit | Options Exercise | -100% | -3,000 | 0 | 03 Mar 2026 | Direct | ||
| Mark Peabody | ATRO | $.01 PV Com Stk | Tax liability | -4.06% | -2,642 | 62,383 | 03 Mar 2026 | Direct | ||
| Mark Peabody | ATRO | $.01 PV Com Stk | Options Exercise | 20% | 10,850 | 65,025 | 03 Mar 2026 | Direct | ||
| Mark Peabody | ATRO | Restricted Stock Unit | Options Exercise | -100% | -10,850 | 0 | 03 Mar 2026 | Direct | ||
| Nancy L. Hedges | ATRO | $.01 PV Com Stk | Tax liability | -5.38% | -1,821 | 32,049 | 03 Mar 2026 | Direct | ||
| Nancy L. Hedges | ATRO | $.01 PV Com Stk | Options Exercise | 17.5% | 5,050 | 33,870 | 03 Mar 2026 | Direct | ||
| Nancy L. Hedges | ATRO | Restricted Stock Unit | Options Exercise | -100% | -5,050 | 0 | 03 Mar 2026 | Direct | ||
| James Mulato | ATRO | $.01 PV Com Stk | Tax liability | -7.26% | -2,801 | 35,777 | 03 Mar 2026 | Direct | ||
| James Mulato | ATRO | $.01 PV Com Stk | Options Exercise | 42.5% | 11,500 | 38,578 | 03 Mar 2026 | Direct | ||
| James Mulato | ATRO | Restricted Stock Unit | Options Exercise | -100% | -11,500 | 0 | 03 Mar 2026 | Direct | ||
| Peter J. Gundermann | ATRO | $.01 PV Com Stk | Tax liability | -3.58% | -3,489 | 93,968 | 03 Mar 2026 | Direct | ||
| Peter J. Gundermann | ATRO | $.01 PV Com Stk | Options Exercise | 16.2% | 13,550 | 97,457 | 03 Mar 2026 | Direct | ||
| Peter J. Gundermann | ATRO | Restricted Stock Unit | Options Exercise | -100% | -13,550 | 0 | 03 Mar 2026 | Direct | ||
| Brady Robert T | ATRO | $.01 PV CL B STK | Options Exercise | 0.74% | 1,290 | 176,366 | 26 Feb 2026 | Direct | ||
| Brady Robert T | ATRO | $.01 PV Com Stk | Tax liability | -1.7% | -1,539 | 89,063 | 26 Feb 2026 | Direct | ||
| Brady Robert T | ATRO | $.01 PV Com Stk | Options Exercise | 4.62% | 4,000 | 90,602 | 26 Feb 2026 | Direct | ||
| Brady Robert T | ATRO | Option | Options Exercise | -100% | -5,290 | 0 | 26 Feb 2026 | Direct | ||
| Peter J. Gundermann | ATRO | Restricted Stock Unit | Award | 12,150 | 12,150 | 19 Feb 2026 | Direct | |||
| Brady Robert T | ATRO | $.01 PV Com Stk | Award | 1.8% | 1,533 | 86,602 | 19 Feb 2026 | Direct | ||
| Neil Y. Kim | ATRO | $.01 PV Com Stk | Award | 3.61% | 1,533 | 44,056 | 19 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.