ACNB CORP (ACNB) Institutional Shareholders
ACNB CORP (ACNB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $244.76M in ACNB holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ACNB tracked by InsiderSet, reporting ownership valued at approximately $41.87M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $45.52M, representing an estimated gain of +8.71% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 72% of the total disclosed ACNB value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Private Capital Management, Llc, and several other long-term asset managers with concentrated positions in ACNB CORP (ACNB).
This page ranks the largest institutional ACNB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
115
Total Reported Value
$244.76M
Largest Holder
Blackrock, Inc.
Largest Position
$41.87M
Insider Transactions (90d)
13
Latest Filing Quarter
Q2 2026
New Institutional Positions
132
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 705,130 | $41,870,620 | $45,516,142 | +$3,645,522 | +8.71% | |
| Vanguard Capital Management Llc | 0.00% | 434,952 | $25,827,450 | $28,076,152 | +$2,248,702 | +8.71% | |
| Private Capital Management, Llc | 1.95% | 361,337 | $21,456,191 | $23,324,303 | +$1,868,112 | +8.71% | |
| Dimensional Fund Advisors Lp | 0.00% | 353,663 | $21,001,184 | $22,828,947 | +$1,827,763 | +8.70% | |
| Geode Capital Management, Llc | 0.00% | 271,775 | $16,141,277 | $17,543,076 | +$1,401,799 | +8.68% | |
| American Century Companies Inc | 0.01% | 263,329 | $15,636,476 | $16,997,887 | +$1,361,411 | +8.71% | |
| State Street Corp | 0.00% | 225,755 | $13,405,332 | $14,572,485 | +$1,167,153 | +8.71% | |
| Manufacturers Life Insurance Company, The | 0.01% | 161,818 | $9,608,753 | $10,445,352 | +$836,599 | +8.71% | |
| Bridgeway Capital Management, Llc | 0.11% | 106,511 | $6,324,623 | $6,875,285 | +$550,662 | +8.71% | |
| Two Sigma Investments, Lp | 0.00% | 98,822 | $5,868,050 | $6,378,960 | +$510,910 | +8.71% | |
| Northern Trust Corp | 0.00% | 97,997 | $5,819,062 | $6,325,706 | +$506,644 | +8.71% | |
| Vanguard Portfolio Management Llc | 0.00% | 68,788 | $4,084,631 | $4,440,265 | +$355,634 | +8.71% | |
| Vanguard Fiduciary Trust Co | 0.00% | 67,267 | $3,994,314 | $4,342,085 | +$347,771 | +8.71% | |
| Maltese Capital Management Llc | 0.70% | 65,000 | $3,859,700 | $4,195,750 | +$336,050 | +8.71% | |
| Empowered Funds, Llc | 0.02% | 64,319 | $3,819,262 | $4,151,791 | +$332,529 | +8.71% | |
| Citadel Advisors Llc | 0.00% | 42,927 | $2,549,005 | $2,770,938 | +$221,933 | +8.71% | |
| Bank Of New York Mellon Corp | 0.00% | 41,447 | $2,461,152 | $2,675,404 | +$214,252 | +8.71% | |
| Goldman Sachs Group Inc | 0.00% | 41,050 | $2,437,549 | $2,649,778 | +$212,229 | +8.71% | |
| Morgan Stanley | 0.00% | 39,846 | $2,366,112 | $2,572,059 | +$205,947 | +8.70% | |
| Aqr Capital Management Llc | 0.00% | 37,941 | $2,252,937 | $2,449,092 | +$196,155 | +8.71% | |
| Fisher Asset Management, Llc | 0.00% | 31,250 | $1,855,625 | $2,017,188 | +$161,563 | +8.71% | |
| Bank Of America Corp | 0.00% | 31,104 | $1,846,955 | $2,007,763 | +$160,808 | +8.71% | |
| Charles Schwab Investment Management Inc | 0.00% | 29,964 | $1,779,262 | $1,934,176 | +$154,914 | +8.71% | |
| Millennium Management Llc | 0.00% | 24,512 | $1,455,523 | $1,582,250 | +$126,727 | +8.71% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 24,356 | $1,446,259 | $1,572,180 | +$125,921 | +8.71% |
| Kestra Advisory Services, Llc | 0.00% | 24,340 | $1,445,332 | $1,571,147 | +$125,815 | +8.70% | |
| Quantinno Capital Management Lp | 0.00% | 17,304 | $1,027,512 | $1,116,973 | +$89,461 | +8.71% | |
| Acadian Asset Management Llc | 0.00% | 16,708 | $988,000 | $1,078,501 | +$90,501 | +9.16% | |
| Xtx Topco Ltd | 0.01% | 16,591 | $985,174 | $1,070,949 | +$85,775 | +8.71% | |
| Nuveen, Llc | 0.00% | 15,156 | $899,963 | $978,320 | +$78,357 | +8.71% | |
| Commonwealth Equity Services, Llc | 0.00% | 14,678 | $871,552 | $947,465 | +$75,913 | +8.71% | |
| Qube Research & Technologies Ltd | 0.00% | 14,626 | $868,492 | $944,108 | +$75,616 | +8.71% | |
| Rkl Wealth Management Llc | 0.06% | 13,441 | $798,141 | $867,617 | +$69,476 | +8.70% | |
| Rhumbline Advisers | 0.00% | 13,366 | $793,666 | $862,775 | +$69,109 | +8.71% | |
| Van Hulzen Asset Management, Llc | 0.05% | 13,003 | $772,119 | $839,344 | +$67,225 | +8.71% | |
| Mariner, Llc | 0.00% | 12,135 | $720,582 | $783,314 | +$62,732 | +8.71% | |
| Captrust Financial Advisors | 0.00% | 11,841 | $703,100 | $764,337 | +$61,237 | +8.71% | |
| Pinnacle Wealth Planning Services, Inc. | 0.06% | 11,363 | $674,735 | $733,482 | +$58,747 | +8.71% | |
| Invesco Ltd. | 0.00% | 11,271 | $669,272 | $727,543 | +$58,271 | +8.71% | |
| Thrivent Financial For Lutherans | 0.00% | 10,561 | $628,000 | $681,713 | +$53,713 | +8.55% | |
| Deutsche Bank Ag\ | 0.00% | 9,986 | $592,969 | $644,596 | +$51,627 | +8.71% | |
| Wells Fargo & Company/Mn | 0.00% | 9,016 | $535,391 | $581,983 | +$46,592 | +8.70% | |
| Lpl Financial Llc | 0.00% | 8,910 | $529,076 | $575,141 | +$46,065 | +8.71% | |
| Price T Rowe Associates Inc | 0.00% | 8,508 | $506,000 | $549,191 | +$43,191 | +8.54% | |
| Quadrature Capital Ltd | 0.00% | 8,009 | $475,574 | $516,981 | +$41,407 | +8.71% | |
| Susquehanna Fundamental Investments, Llc | 0.01% | 7,761 | $460,848 | $500,973 | +$40,125 | +8.71% | |
| Wealthspire Advisors, Llc | 0.00% | 7,617 | $452,298 | $491,677 | +$39,379 | +8.71% | |
| D. E. Shaw & Co., Inc. | 0.00% | 7,371 | $437,690 | $475,798 | +$38,108 | +8.71% | |
| Greenspring Advisors, Llc | 0.02% | 7,022 | $416,967 | $453,270 | +$36,303 | +8.71% | |
| Equitable Holdings, Inc. | 0.00% | 6,242 | $370,641 | $402,921 | +$32,280 | +8.71% |
Frequently asked questions about ACNB
Who owns the most ACNB stock?
The largest holders of ACNB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACNB CORP (ACNB).
Is ACNB widely held by superinvestors?
Many widely followed stocks like ACNB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACNB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.