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
15 Sep 2026
- Public ticker
- ACNB on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
FMR LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
FMR LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
15 Sep 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000715579
- Issuer location
- Gettysburg, PA
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 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
15 Sep 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.
Open SEC evidence
Opens FMR LLC's linked filing trail.
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
0.28%
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%
|
$5,263,356
88,639 shares
|
— | 15 Sep 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%
|
$2,158,103
36,344 shares
|
— | 15 Sep 2026 |
| Frank Elsner III |
3/4/5
Director
|
0.28%
|
$1,898,051
29,071 shares
|
+$750 | 15 Sep 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 |
| James J. Lott |
3/4/5
Director
|
0.19%
|
$1,151,732
19,396 shares
|
— | 15 Sep 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: -$590,473.
Buys
$16,590
Insiders: 2
Sells
$607,063
Insiders: 3
Net
-$590,473
Shares: -11,099
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 410
Shares: 11,509
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 3.83 | 1,500 | $250 | $96,525 | -$96,275 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 5.39 | 2,236 | $250 | $110,581 | -$110,331 |
| 9-12 | 401 | 7,773 | $16,090 | $399,957 | -$383,867 |
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
-$590,473
Latest report
15 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Alan J. Stock | Director, Chairman of the Board | $5,263,356 | Median | 15 Sep 2026 | ||
| James P. Helt | President & CEO, Director | $2,426,687 | Mixed | 13 Mar 2026 | ||
| John M. Polli | Director | $2,158,103 | Median | 15 Sep 2026 | ||
| Frank Elsner III | Director | $1,898,051 | +$750 | +0.04% | Filing P/S | 15 Sep 2026 |
| David L. Sites | Director | $1,885,441 | Mixed | 15 Dec 2022 | ||
| Scott L. Kelley | Director | $1,340,341 | +$15,840 | +1.2% | Mixed | 26 May 2026 |
| James J. Lott | Director | $1,151,732 | Median | 15 Sep 2026 | ||
| Douglas A. Seibel | ACNB Bank EVP | $1,146,033 | Mixed | 13 Mar 2026 | ||
| Donald Arthur Seibel Jr. | Director | $1,100,152 | -$351,525 | -24% | Median | 15 Sep 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 | ||
| Eugene J. Draganosky | Director | $811,976 | Median | 15 Sep 2026 | ||
| Todd L. Herring | Director, Vice Chairman of the Board | $806,106 | Median | 15 Sep 2026 | ||
| Elizabeth F. Carson | Director | $790,308 | Median | 15 Sep 2026 | ||
| Donna M. Newell | Director | $766,556 | Median | 15 Sep 2026 | ||
| Tom N. Rasmussen | ACNB Bank EVP | $753,550 | Mixed | 15 Mar 2023 | ||
| Kimberly S. Chaney | Director | $609,171 | Median | 15 Sep 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Donna M. Newell | ACNB | ACNB Corporation Common | Award | 1.66% | 211 | 12,909 | 15 Sep 2026 | Direct | ||
| Elizabeth F. Carson | ACNB | ACNB Corporation Common | Award | 1.2% | 158 | 13,309 | 15 Sep 2026 | Direct | ||
| Alexandra C. Chiaruttini | ACNB | ACNB Corporation Common | Award | 6.5% | 211 | 3,452 | 15 Sep 2026 | Direct | ||
| Alan J. Stock | ACNB | ACNB Corporation Common | Award | 0.24% | 211 | 88,639 | 15 Sep 2026 | Direct | ||
| Frank Elsner III | ACNB | ACNB Corporation Common | Purchase | 0.01% | $250 | $65.29 | 3.83 | 29,071 | 15 Sep 2026 | Direct |
| Frank Elsner III | ACNB | ACNB Corporation Common | Award | 0.55% | 158 | 29,052 | 15 Sep 2026 | Direct | ||
| James J. Lott | ACNB | ACNB Corporation Common | Award | 0.82% | 158 | 19,396 | 15 Sep 2026 | Direct | ||
| Todd L. Herring | ACNB | ACNB Corporation Common | Award | 1.89% | 211 | 11,327 | 15 Sep 2026 | Direct | ||
| Donald Arthur Seibel Jr. | ACNB | ACNB Corporation Common | Award | 3.96% | 211 | 5,525 | 15 Sep 2026 | Direct | ||
| Kimberly S. Chaney | ACNB | ACNB Corporation Common | Award | 3.87% | 158 | 4,236 | 15 Sep 2026 | Direct | ||
| John M. Polli | ACNB | ACNB Corporation Common | Award | 0.58% | 211 | 36,344 | 15 Sep 2026 | Direct | ||
| Eugene J. Draganosky | ACNB | ACNB Corporation Common | Award | 1.17% | 158 | 13,674 | 15 Sep 2026 | Direct | ||
| Donald Arthur Seibel Jr. | ACNB | ACNB Corporation Common | Sale | -22% | $96,525 | $64.35 | -1,500 | 5,312 | 07 Aug 2026 | Direct |
| Elizabeth F. Carson | ACNB | ACNB Corporation Common | Award | 1.41% | 182 | 13,145 | 15 Jun 2026 | Direct | ||
| Donald Arthur Seibel Jr. | ACNB | ACNB Corporation Common | Award | 3.7% | 243 | 6,812 | 15 Jun 2026 | Direct | ||
| Frank Elsner III | ACNB | ACNB Corporation Common | Award | 0.65% | 187 | 28,840 | 15 Jun 2026 | Direct | ||
| Donna M. Newell | ACNB | ACNB Corporation Common | Award | 1.96% | 243 | 12,642 | 15 Jun 2026 | Direct | ||
| Todd L. Herring | ACNB | ACNB Corporation Common | Award | 2.25% | 243 | 11,053 | 15 Jun 2026 | Direct | ||
| James J. Lott | ACNB | ACNB Corporation Common | Award | 0.96% | 182 | 19,180 | 15 Jun 2026 | Direct | ||
| John M. Polli | ACNB | ACNB Corporation Common | Award | 0.68% | 243 | 36,124 | 15 Jun 2026 | Direct | ||
| Alexandra C. Chiaruttini | ACNB | ACNB Corporation Common | Award | 8.15% | 243 | 3,230 | 15 Jun 2026 | Direct | ||
| Kimberly S. Chaney | ACNB | ACNB Corporation Common | Award | 4.71% | 182 | 4,053 | 15 Jun 2026 | Direct | ||
| Eugene J. Draganosky | ACNB | ACNB Corporation Common | Award | 1.37% | 182 | 13,510 | 15 Jun 2026 | Direct | ||
| Alan J. Stock | ACNB | ACNB Corporation Common | Award | 0.28% | 243 | 88,350 | 15 Jun 2026 | Direct | ||
| 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 |
* marks a reported price that did not pass the local price check.