Who owns MSA (MSA)
Which tracked institutional funds hold MSA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MSA company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
110 tracked funds added or opened MSA while 62 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
MSA’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes MSA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MSA divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 446 tracked filers holding MSA, 221 increased or opened the position and 167 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in MSA between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 32
- VANGUARD PORTFOLIO MANAGEMENT LLC$302M
- VANGUARD CAPITAL MANAGEMENT LLC$279M
- VANGUARD FIDUCIARY TRUST CO$37M
- MIROVA$13M
- ALPS ADVISORS INC$13M
- ExodusPoint Capital Management, LP$8M
Full exits 9
- VANGUARD GROUP INC$598M
- COMERICA BANK$17M
- Engineers Gate Manager LP$4M
- Quantbot Technologies LP$1M
- AlphaQuest LLC$1M
- AIA Group Ltd$1M
Largest adds
- T. Rowe Price Investment Management, Inc.$76M
- JONES FINANCIAL COMPANIES LLLP$64M
- RAYMOND JAMES FINANCIAL INC$31M
- Capital World Investors$20M
- FIFTH THIRD BANCORP$17M
- FRANKLIN RESOURCES INC$15M
Largest trims
- Champlain Investment Partners, LLC$65M
- JPMORGAN CHASE & CO$32M
- BlackRock, Inc.$16M
- P2 Capital Partners, LLC$13M
- Handelsbanken Fonder AB$12M
- Conestoga Capital Advisors, LLC$11M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 3,009,071 | $493M | 8.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,842,263 | $302M | 5.1% | 2026-Q1 |
| Ruane, Cunniff & Goldfarb L.P. trimmed | 1,776,282 | $291M | 4.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,703,783 | $279M | 4.7% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,538,690 | $252M | 4.3% | 2026-Q1 |
| APG Asset Management N.V. | 1,497,591 | $213M | 3.6% | 2026-Q1 |
| COOKE & BIELER LP trimmed | 845,488 | $139M | 2.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 758,344 | $124M | 2.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 759,692 | $122M | 2.1% | 2026-Q1 |
| M&G PLC trimmed | 698,002 | $114M | 1.9% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 697,186 | $114M | 1.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 692,020 | $113M | 1.9% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 685,740 | $112M | 1.9% | 2026-Q1 |
| FIDUCIARY MANAGEMENT INC /WI/ trimmed | 678,986 | $111M | 1.9% | 2026-Q1 |
| Conestoga Capital Advisors, LLC trimmed | 664,812 | $109M | 1.8% | 2026-Q1 |
| Champlain Investment Partners, LLC trimmed | 641,879 | $105M | 1.8% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 625,757 | $103M | 1.7% | 2026-Q1 |
| Channing Capital Management, LLC trimmed | 607,419 | $100M | 1.7% | 2026-Q1 |
| Madison Asset Management, LLC added | 588,568 | $96M | 1.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 533,504 | $87M | 1.5% | 2026-Q1 |
| MORGAN STANLEY added | 455,181 | $75M | 1.3% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 442,840 | $73M | 1.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 444,963 | $72M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 427,052 | $70M | 1.2% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 396,573 | $65M | 1.1% | 2026-Q1 |
| NORGES BANK added | 438,520 | $64M | 1.1% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP added | 388,520 | $64M | 1.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 388,038 | $64M | 1.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 376,001 | $62M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 342,645 | $56M | 0.9% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 339,059 | $56M | 0.9% | 2026-Q1 |
| BROWN ADVISORY INC trimmed | 322,450 | $53M | 0.9% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 320,457 | $51M | 0.9% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 304,865 | $50M | 0.8% | 2026-Q1 |
| Capital World Investors added | 229,725 | $38M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 228,686 | $37M | 0.6% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 218,070 | $36M | 0.6% | 2026-Q1 |
| SEI INVESTMENTS CO added | 205,135 | $34M | 0.6% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 188,588 | $31M | 0.5% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 181,486 | $30M | 0.5% | 2026-Q1 |
| Copeland Capital Management, LLC trimmed | 176,737 | $29M | 0.5% | 2026-Q1 |
| SOUTHERNSUN ASSET MANAGEMENT, LLC trimmed | 170,520 | $28M | 0.5% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 167,586 | $27M | 0.5% | 2026-Q1 |
| BESSEMER GROUP INC added | 161,000 | $26M | 0.4% | 2026-Q1 |
| Aberdeen Group plc trimmed | 154,575 | $25M | 0.4% | 2026-Q1 |
| Arbejdsmarkedets Tillaegspension trimmed | 144,797 | $24M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 144,377 | $24M | 0.4% | 2026-Q1 |
| ProShare Advisors LLC trimmed | 140,443 | $23M | 0.4% | 2026-Q1 |
| Triodos Investment Management BV | 122,000 | $20M | 0.3% | 2026-Q1 |
| Handelsbanken Fonder AB trimmed | 117,744 | $19M | 0.3% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 116,396 | $19M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 112,976 | $19M | 0.3% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 112,224 | $18M | 0.3% | 2026-Q1 |
| UBS Group AG trimmed | 112,034 | $18M | 0.3% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 106,745 | $18M | 0.3% | 2026-Q1 |
| P2 Capital Partners, LLC trimmed | 103,269 | $17M | 0.3% | 2026-Q1 |
| FIFTH THIRD BANCORP added | 102,456 | $17M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 101,050 | $17M | 0.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 94,686 | $16M | 0.3% | 2026-Q1 |
| ARGENT CAPITAL MANAGEMENT LLC trimmed | 88,824 | $15M | 0.2% | 2026-Q1 |
| SPEECE THORSON CAPITAL GROUP INC trimmed | 85,165 | $14M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 82,167 | $13M | 0.2% | 2026-Q1 |
| MIROVA new | 80,640 | $13M | 0.2% | 2026-Q1 |
| PNC FINANCIAL SERVICES GROUP, INC. trimmed | 80,075 | $13M | 0.2% | 2026-Q1 |
| ALPS ADVISORS INC trimmed | 79,887 | $13M | 0.2% | 2026-Q1 |
| EULAV Asset Management | 77,600 | $13M | 0.2% | 2026-Q1 |
| Gotham Asset Management, LLC added | 74,064 | $12M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 73,600 | $12M | 0.2% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC trimmed | 67,562 | $11M | 0.2% | 2026-Q1 |
| Retirement Systems of Alabama added | 68,386 | $11M | 0.2% | 2026-Q1 |
| ArrowMark Colorado Holdings LLC trimmed | 67,879 | $11M | 0.2% | 2026-Q1 |
| PALISADE CAPITAL MANAGEMENT, LP trimmed | 67,667 | $11M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 66,497 | $11M | 0.2% | 2026-Q1 |
| NICOLA WEALTH MANAGEMENT LTD. trimmed | 65,375 | $11M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 65,350 | $11M | 0.2% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 64,061 | $10M | 0.2% | 2026-Q1 |
| Foresight Group Ltd Liability Partnership trimmed | 61,214 | $10M | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 58,407 | $10M | 0.2% | 2026-Q1 |
| LPL Financial LLC trimmed | 54,984 | $9M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 54,736 | $9M | 0.2% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD | 52,200 | $9M | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 51,828 | $8M | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 52,377 | $8M | 0.1% | 2026-Q1 |
| BAHL & GAYNOR INC added | 51,047 | $8M | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 50,813 | $8M | 0.1% | 2026-Q1 |
| BAILLIE GIFFORD & CO trimmed | 50,591 | $8M | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 50,225 | $8M | 0.1% | 2026-Q1 |
| FIRST MANHATTAN CO. LLC. trimmed | 49,275 | $8M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 48,224 | $8M | 0.1% | 2026-Q1 |
| EDENTREE ASSET MANAGEMENT Ltd | 47,132 | $8M | 0.1% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 46,332 | $8M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 46,104 | $7M | 0.1% | 2026-Q1 |
| Pier Capital, LLC trimmed | 42,070 | $7M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 41,639 | $7M | 0.1% | 2026-Q1 |
| KBC Group NV added | 41,532 | $7M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 3,736,913 | $598M | 10.1% | 2025-Q4 stale |
| NIXON PEABODY TRUST CO | 347,550 | $60M | 1.0% | 2025-Q3 stale |
| COMERICA BANK added | 103,450 | $17M | 0.3% | 2025-Q4 stale |
| Thematics Asset Management trimmed | 86,935 | $15M | 0.3% | 2025-Q3 stale |
| Ranger Investment Management, L.P. trimmed | 74,955 | $13M | 0.2% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.