Comparable stake leader
FMR LLC
SEC ownership of ACNB CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000715579.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
26 May 2026
- Symbol
- ACNB on Nasdaq
- SEC evidence covered
- 13D/G, 13F, and 3/4/5
- Largest SEC-reported holder
- FMR LLC
- Latest 13D/G holder
- FMR LLC
- Latest parsed evidence date
- 26 May 2026
- CIK
- 0000715579
- Location
- Gettysburg, PA
Ownership snapshot
2 signals
Issuer
2 identity fields
Ownership snapshot
Top shareholders of ACNB 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
FMR LLC
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
26 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 3.5%
13D/G row: FMR LLC
Showing 1-8 of 50 holder rows.
Quick read
FMR LLC leads the comparable SEC ownership view at 3.5%.
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.
Comparable ownership
Top 5
FMR LLC
3.5%
Alan J. Stock
0.85%
James P. Helt
0.45%
John M. Polli
0.35%
Frank Elsner III
0.27%
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 |
|---|---|---|---|---|---|
| FMR LLC |
13D/G
13F
Company
|
3.5%
|
$17,408,573
363,662 shares
|
$0 | 31 Mar 2026 |
| Alan J. Stock |
3/4/5
Director, Chairman of the Board
|
0.85%
|
$4,567,305
87,917 shares
|
— | 13 Mar 2026 |
| James P. Helt |
3/4/5
President & CEO, Director
|
0.45%
|
$2,426,687
46,712 shares
|
— | 13 Mar 2026 |
| John M. Polli |
3/4/5
Director
|
0.35%
|
$1,862,941
35,860 shares
|
— | 13 Mar 2026 |
| Frank Elsner III |
3/4/5
Director
|
0.27%
|
$1,322,210
28,484 shares
|
+$1,008 | 13 Mar 2026 |
| Scott L. Kelley |
3/4/5
Director
|
0.27%
|
$1,340,341
28,000 shares
|
+$15,840 | 26 May 2026 |
| Douglas A. Seibel |
3/4/5
ACNB Bank EVP
|
0.21%
|
$1,146,033
22,060 shares
|
— | 13 Mar 2026 |
| Donald Arthur Seibel Jr. |
3/4/5
Director
|
0.18%
|
$996,274
19,178 shares
|
-$255,000 | 13 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: -$482,440.
Buys
$28,098
Insiders: 3
Sells
$510,538
Insiders: 3
Net
-$482,440
Shares: -9,340
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 669
Shares: 10,009
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 5.39 | 0 | $250 | $0 | +$250 |
| 3-6 | 4.75 | 10,009 | $250 | $510,538 | -$510,288 |
| 6-9 | 653 | 0 | $27,348 | $0 | +$27,348 |
| 9-12 | 6.1 | 0 | $250 | $0 | +$250 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 30 reporting-owner rows connected to ACNB CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
30
Largest Forms 3/4/5 holder
Alan J. Stock
Net 12M change
-$482,440
Latest report
26 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Alan J. Stock | Director, Chairman of the Board | $4,567,305 | Mixed | 13 Mar 2026 | ||
| James P. Helt | President & CEO, Director | $2,426,687 | Mixed | 13 Mar 2026 | ||
| David L. Sites | Director | $1,885,441 | Mixed | 15 Dec 2022 | ||
| John M. Polli | Director | $1,862,941 | Mixed | 13 Mar 2026 | ||
| Scott L. Kelley | Director | $1,340,341 | +$15,840 | +1.2% | Median | 26 May 2026 |
| Frank Elsner III | Director | $1,322,210 | +$1,008 | +0.08% | Filing P/S | 13 Mar 2026 |
| Douglas A. Seibel | ACNB Bank EVP | $1,146,033 | Mixed | 13 Mar 2026 | ||
| Donald Arthur Seibel Jr. | Director | $996,274 | -$255,000 | -20% | Mixed | 13 Mar 2026 |
| James J. Lott | Director | $979,488 | +$11,250 | +1.2% | Mixed | 13 Mar 2026 |
| Laurie A. Laub | ACNB Bank EVP | $919,156 | Mixed | 13 Mar 2026 | ||
| David W. Cathell | EVP, Treasurer & CFO | $863,270 | Mixed | 15 Mar 2022 | ||
| Tom N. Rasmussen | ACNB Bank EVP | $753,550 | Mixed | 15 Mar 2023 | ||
| Eugene J. Draganosky | Director | $691,609 | Mixed | 13 Mar 2026 | ||
| Elizabeth F. Carson | Director | $672,652 | Mixed | 13 Mar 2026 | ||
| Todd L. Herring | Director, Vice Chairman of the Board | $669,080 | Mixed | 13 Mar 2026 | ||
| Donna M. Newell | Director | $636,902 | Mixed | 13 Mar 2026 | ||
| Jason H. Weber | EVP, Treasurer & CFO | $582,182 | Mixed | 13 Mar 2026 | ||
| James Eugene Williams | Director | $575,245 | Mixed | 15 Mar 2022 | ||
| Lynda L. Glass | EVP, Secretary & CGO | $552,475 | Mixed | 15 Mar 2023 | ||
| Marian B. Schultz | Director | $531,747 | Mixed | 15 Mar 2022 |
Recent insider transactions for ACNB 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Donald Arthur Seibel Jr. | ACNB | ACNB Corporation Common | Award | 4.8% | 296 | 6,465 | 13 Mar 2026 | Direct | ||
| Scott L. Kelley | ACNB | ACNB Corporation Common | Award | 0.8% | 222 | 28,000 | 13 Mar 2026 | Direct | ||
| Eugene J. Draganosky | ACNB | ACNB Corporation Common | Award | 1.69% | 222 | 13,313 | 13 Mar 2026 | Direct | ||
| Brett D. Fulk | ACNB | ACNB Corporation Common | Tax liability | -7.35% | -315 | 3,972 | 13 Mar 2026 | Direct | ||
| Brett D. Fulk | ACNB | ACNB Corporation Common | Award | 309.2% | 3,239 | 4,287 | 13 Mar 2026 | Direct | ||
| Frank Elsner III | ACNB | ACNB Corporation Common | Purchase | 0.02% | $250 | $46.42 | 5.39 | 28,484 | 13 Mar 2026 | Direct |
| Frank Elsner III | ACNB | ACNB Corporation Common | Award | 0.79% | 222 | 28,460 | 13 Mar 2026 | Direct | ||
| Daniel W. Potts | ACNB | ACNB Corporation Common | Award | 2.26% | 222 | 10,044 | 13 Mar 2026 | Direct | ||
| Emily E. Berwager | ACNB | ACNB Corporation Common | Tax liability | -2.92% | -181 | 6,026 | 13 Mar 2026 | Direct | ||
| Emily E. Berwager | ACNB | ACNB Corporation Common | Award | 38.8% | 1,734 | 6,207 | 13 Mar 2026 | Direct | ||
| James J. Lott | ACNB | ACNB Corporation Common | Award | 1.19% | 222 | 18,854 | 13 Mar 2026 | Direct | ||
| Kimberly S. Chaney | ACNB | ACNB Corporation Common | Award | 6.19% | 222 | 3,808 | 13 Mar 2026 | Direct | ||
| Todd L. Herring | ACNB | ACNB Corporation Common | Award | 2.86% | 296 | 10,657 | 13 Mar 2026 | Direct | ||
| Donna M. Newell | ACNB | ACNB Corporation Common | Award | 2.48% | 296 | 12,260 | 13 Mar 2026 | Direct | ||
| John M. Polli | ACNB | ACNB Corporation Common | Award | 0.83% | 296 | 35,860 | 13 Mar 2026 | Direct | ||
| Alexandra C. Chiaruttini | ACNB | ACNB Corporation Common | Award | 11.1% | 296 | 2,963 | 13 Mar 2026 | Direct | ||
| Elizabeth F. Carson | ACNB | ACNB Corporation Common | Award | 1.74% | 222 | 12,948 | 13 Mar 2026 | Direct | ||
| Kevin J. Hayes | ACNB | ACNB Corporation Common | Tax liability | -4.44% | -192 | 4,134 | 13 Mar 2026 | Direct | ||
| Kevin J. Hayes | ACNB | ACNB Corporation Common | Award | 64.4% | 1,694 | 4,326 | 13 Mar 2026 | Direct | ||
| Alan J. Stock | ACNB | ACNB Corporation Common | Award | 0.34% | 296 | 87,917 | 13 Mar 2026 | Direct | ||
| Andrew A. Bradley | ACNB | ACNB Corporation Common | Tax liability | -6.66% | -192 | 2,696 | 13 Mar 2026 | Direct | ||
| Andrew A. Bradley | ACNB | ACNB Corporation Common | Award | 137.5% | 1,672 | 2,888 | 13 Mar 2026 | Direct | ||
| Douglas A. Seibel | ACNB | ACNB Corporation Common | Tax liability | -1.33% | -297 | 22,060 | 13 Mar 2026 | Direct | ||
| Douglas A. Seibel | ACNB | ACNB Corporation Common | Award | 16.3% | 3,132 | 22,358 | 13 Mar 2026 | Direct | ||
| Laurie A. Laub | ACNB | ACNB Corporation Common | Tax liability | -2.07% | -374 | 17,693 | 13 Mar 2026 | Direct | ||
| Laurie A. Laub | ACNB | ACNB Corporation Common | Award | 22.2% | 3,278 | 18,067 | 13 Mar 2026 | Direct | ||
| Jason H. Weber | ACNB | ACNB Corporation Common | Tax liability | -2.86% | -330 | 11,207 | 13 Mar 2026 | Direct | ||
| Jason H. Weber | ACNB | ACNB Corporation Common | Award | 42.5% | 3,442 | 11,536 | 13 Mar 2026 | Direct | ||
| James P. Helt | ACNB | ACNB Corporation Common | Tax liability | -1.68% | -800 | 46,712 | 13 Mar 2026 | Direct | ||
| James P. Helt | ACNB | ACNB Corporation Common | Award | 21.5% | 8,419 | 47,512 | 13 Mar 2026 | Direct | ||
| Kevin J. Hayes | ACNB | ACNB Corporation Common | Sale | -22.2% | $38,477 | $51.30 | -750 | 2,632 | 03 Feb 2026 | Direct |
| Brett D. Fulk | ACNB | ACNB Corporation Common | Sale | -58.7% | $72,104 | $48.52 | -1,486 | 1,048 | 26 Jan 2026 | Direct |
| James P. Helt | ACNB | ACNB Corporation Common | Tax liability | -4.3% | -1,717 | 38,236 | 01 Jan 2026 | Direct | ||
| Jason H. Weber | ACNB | ACNB Corporation Common | Tax liability | -9.16% | -800 | 7,936 | 01 Jan 2026 | Direct | ||
| Kevin J. Hayes | ACNB | ACNB Corporation Common | Tax liability | -9% | -334 | 3,382 | 01 Jan 2026 | Direct | ||
| Andrew A. Bradley | ACNB | ACNB Corporation Common | Tax liability | -13% | -180 | 1,208 | 01 Jan 2026 | Direct | ||
| Douglas A. Seibel | ACNB | ACNB Corporation Common | Tax liability | -3.72% | -724 | 18,750 | 01 Jan 2026 | Direct | ||
| Emily E. Berwager | ACNB | ACNB Corporation Common | Tax liability | -7.83% | -372 | 4,378 | 01 Jan 2026 | Direct | ||
| Laurie A. Laub | ACNB | ACNB Corporation Common | Tax liability | -5.78% | -885 | 14,420 | 01 Jan 2026 | Direct | ||
| Brett D. Fulk | ACNB | ACNB Corporation Common | Tax liability | -23.4% | -772 | 2,534 | 01 Jan 2026 | Direct | ||
| Scott L. Kelley | ACNB | ACNB Corporation Common | Award | 0.55% | 150 | 27,579 | 15 Dec 2025 | Direct | ||
| Elizabeth F. Carson | ACNB | ACNB Corporation Common | Award | 1.19% | 150 | 12,721 | 15 Dec 2025 | Direct | ||
| John M. Polli | ACNB | ACNB Corporation Common | Award | 0.6% | 214 | 35,556 | 15 Dec 2025 | Direct | ||
| Todd L. Herring | ACNB | ACNB Corporation Common | Award | 2.12% | 214 | 10,287 | 15 Dec 2025 | Direct | ||
| Daniel W. Potts | ACNB | ACNB Corporation Common | Award | 1.56% | 150 | 9,755 | 15 Dec 2025 | Direct | ||
| Alexandra C. Chiaruttini | ACNB | ACNB Corporation Common | Award | 5.96% | 150 | 2,658 | 15 Dec 2025 | Direct | ||
| Alan J. Stock | ACNB | ACNB Corporation Common | Award | 0.24% | 214 | 87,529 | 15 Dec 2025 | Direct | ||
| Eugene J. Draganosky | ACNB | ACNB Corporation Common | Award | 1.16% | 150 | 13,087 | 15 Dec 2025 | Direct | ||
| Brett D. Fulk | ACNB | ACNB Corporation Common | Sale | -45.6% | $144,957 | $52.27 | -2,773 | 3,306 | 15 Dec 2025 | Direct |
| Frank Elsner III | ACNB | ACNB Corporation Common | Purchase | 0.02% | $250 | $52.64 | 4.75 | 28,174 | 15 Dec 2025 | Direct |
* marks a reported price that did not pass the local price check.