NEOGEN CORP NEOG
COM · Common Stock · CUSIP 640491106 · ISIN US6404911066
International food safety company
- SectorHealth care
- IndustryIn Vitro & In Vivo Diagnostic Substances
- HeadquartersLansing, MI
- Founded1981
- Websiteneogen.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($920.0k this quarter). Holder counts are more reliable. Shares outstanding: 217.7m as of 2026-02-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.29. Options: 7 managers hold calls ($24.7m notional), 7 hold puts ($10.2m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 386 |
| Q4 2022 | 371 |
| Q1 2023 | 356 |
| Q2 2023 | 343 |
| Q3 2023 | 368 |
| Q4 2023 | 342 |
| Q1 2024 | 344 |
| Q2 2024 | 346 |
| Q3 2024 | 338 |
| Q4 2024 | 343 |
| Q1 2025 | 340 |
| Q2 2025 | 318 |
| Q3 2025 | 299 |
| Q4 2025 | 305 |
| Q1 2026 | 308 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 178 | 159 |
| Q3 2024 | 152 | 148 |
| Q4 2024 | 144 | 165 |
| Q1 2025 | 162 | 167 |
| Q2 2025 | 177 | 184 |
| Q3 2025 | 139 | 178 |
| Q4 2025 | 127 | 150 |
| Q1 2026 | 142 | 132 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $1.3m | $5.0m | 3.73 |
| Q3 2025 | $3.5m | $6.6m | 1.91 |
| Q4 2025 | $14.5m | $7.1m | 0.49 |
| Q1 2026 | $24.7m | $10.2m | 0.41 |
Biggest buyers
| NEUBERGER BERMAN GROUP LLC | Added | +6.6m |
| CIBC WORLD MARKET INC. | New | +6.0m |
| SG Americas Securities, LLC | Added | +4.6m |
| MUFG Securities EMEA plc | Added | +4.0m |
| NATIONAL BANK OF CANADA /FI/ | Added | +2.5m |
| SG Capital Management LLC | New | +2.1m |
| DIMENSIONAL FUND ADVISORS LP | Added | +1.7m |
| FMR LLC | Added | +1.7m |
| BESSEMER GROUP INC | Added | +1.6m |
| NOMURA HOLDINGS INC | Added | +1.2m |
Biggest sellers
| Clarkston Capital Partners, LLC | Reduced | -9.1m |
| BANK OF MONTREAL /CAN/ | Reduced | -4.5m |
| Gates Capital Management, Inc. | Reduced | -2.1m |
| SHAPIRO CAPITAL MANAGEMENT LLC | Sold out | -1.8m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold out | -1.8m |
| AMERICAN CAPITAL MANAGEMENT INC | Reduced | -1.3m |
| D. E. Shaw & Co., Inc. | Sold out | -1.0m |
| CITADEL ADVISORS LLC | Reduced | -996.7k |
| BANK OF AMERICA CORP /DE/ | Reduced | -770.3k |
| BAMCO INC /NY/ | Reduced | -500.0k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $12.3m1.3m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.2m449.4k shares |
| CITADEL ADVISORS LLC | Reduced | $3.4m364.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.2m235.3k shares |
| GROUP ONE TRADING LLC | Reduced | $2.0m220.1k shares |
| Walleye Capital LLC | New | $447.8k48.2k shares |
| IMC-Chicago, LLC | New | $120.8k13.0k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $5.6m602.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.4m256.4k shares |
| JANE STREET GROUP, LLC | Reduced | $1.6m168.7k shares |
| GROUP ONE TRADING LLC | Added | $357.7k38.5k shares |
| CSS LLC/IL | New | $162.6k17.5k shares |
| SIMPLEX TRADING, LLC | Added | $115.2k12.4k shares |
| Walleye Capital LLC | New | $11.1k1.2k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-24 | 14.3% |
| Neuberger Berman Group LLC 13G · institution new · filed 2026-07-07 | 7.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.9% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.1% |
Fell to 5% or below in the last year: Clarkston Capital Partners, LLC (1.0%, 2026-05-14), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), Gates Capital Management, Inc. (3.9%, 2026-02-17), ING GROEP NV (4.0%, 2025-12-04)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 4 | $662.2k | 0 | — | — |
| Q3 2024 | 1 | $50.6k | 0 | — | — |
| Q4 2024 | 1 | $200.1k | 0 | — | — |
| Q1 2025 | 2 | $418.5k | 0 | — | — |
| Q2 2025 | 9 | $771.8k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 1 | $1.1k | 0 | — | — |
| Q1 2026 | 1 | $2.0k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-02-17 | Nassif Mikheal CEO, director · By son | Bought | $25223 shares |
| 2026-02-02 | Nassif Mikheal CEO, director · By son | Bought | $24024 shares |
| 2026-01-26 | Nassif Mikheal CEO, director · By son | Bought | $24625 shares |
| 2026-01-16 | Nassif Mikheal CEO, director · By son | Bought | $1.3k137 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 32.6m $303.0m | Added +112.0k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 12.8m $119.2m | First filing |
| T. Rowe Price Investment Management, Inc. 0.07% of their portfolio | 10.2m $94.4m | Added +779.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 9.6m $88.9m | First filing |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 9.1m $84.8m | Added +1.7m |
| ING GROEP NV 0.51% of their portfolio | 8.9m $82.7m | Added +126.8k |
| STATE STREET CORP 0.00% of their portfolio | 8.6m $79.8m | Reduced -134.5k |
| MACKENZIE FINANCIAL CORP 0.09% of their portfolio | 7.8m $72.5m | Reduced -95.2k |
| NEUBERGER BERMAN GROUP LLC 0.05% of their portfolio | 7.8m $72.0m | Added +6.6m |
| Hudson Bay Capital Management LP 0.36% of their portfolio | 6.5m $60.4m | Added +180 |
| SG Americas Securities, LLC 0.06% of their portfolio | 6.3m $58.2m | Added +4.6m |
| Gates Capital Management, Inc. 2.01% of their portfolio | 6.3m $58.1m | Reduced -2.1m |
| CIBC Bancorp USA Inc. 0.08% of their portfolio | 6.0m $55.7m | First filing |
| CIBC WORLD MARKET INC. 0.10% of their portfolio | 6.0m $55.4m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 5.6m $51.7m | Added +133.5k |
| BAMCO INC /NY/ 0.14% of their portfolio | 5.0m $46.5m | Reduced -500.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 4.6m $43.1m | Reduced -770.3k |
| MORGAN STANLEY 0.00% of their portfolio | 4.6m $42.6m | Added +84.1k |
| MUFG Securities EMEA plc 0.55% of their portfolio | 4.0m $37.2m | Added +4.0m |
| NATIONAL BANK OF CANADA /FI/ 0.03% of their portfolio | 3.5m $32.5m | Added +2.5m |
| MIZUHO MARKETS AMERICAS LLC 0.90% of their portfolio | 3.5m $32.5m | Unchanged |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.05% of their portfolio | 3.3m $30.6m | Reduced -193.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 3.1m $28.4m | Added +158.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 2.5m $23.4m | Added +312.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.4m $21.9m | Added +69.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 2.2m $20.7m | Added +923.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 2.2m $20.6m | Reduced -498.0k |
| Clarkston Capital Partners, LLC 1.56% of their portfolio | 2.2m $20.5m | Reduced -9.1m |
| SG Capital Management LLC 1.63% of their portfolio | 2.1m $19.9m | New |
| NOMURA HOLDINGS INC 0.16% of their portfolio | 2.1m $19.4m | Added +1.2m |
| FMR LLC 0.00% of their portfolio | 1.9m $17.7m | Added +1.7m |
| GLENMEDE TRUST CO NA 0.08% of their portfolio | 1.8m $17.0m | Reduced -144.4k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 1.6m $14.8m | Added +50.4k |
| BESSEMER GROUP INC 0.02% of their portfolio | 1.6m $14.5m | Added +1.6m |
| UBS Group AG 0.00% of their portfolio | 1.5m $14.1m | Reduced -129.7k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.28% of their portfolio | 1.4m $13.4m | Added +27.8k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 1.4m $13.1m | First filing |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.2m $11.6m | Reduced -47.6k |
| Nuveen, LLC 0.00% of their portfolio | 1.2m $11.2m | Reduced -2.6k |
| Invesco Ltd. 0.00% of their portfolio | 1.2m $10.9m | Reduced -49.8k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.04% of their portfolio | 1.1m $10.2m | Added +12.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.1m $9.8m | Added +21.5k |
| HEARTLAND ADVISORS INC 0.47% of their portfolio | 1.0m $9.3m | Unchanged |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 998.6k $9.3m | Reduced -996.7k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 977.7k $9.1m | Added +768.6k |
| FRED ALGER MANAGEMENT, LLC 0.04% of their portfolio | 970.9k $9.0m | Added +134.2k |
| ArrowMark Colorado Holdings LLC 0.24% of their portfolio | 968.6k $9.0m | Reduced -148.0k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 778.2k $7.2m | Added +25.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 743.4k $6.9m | Reduced -355.0k |
| Susquehanna Portfolio Strategies, LLC 0.10% of their portfolio | 690.2k $6.4m | Unchanged |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 628.5k $5.8m | Added +12.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 590.0k $5.4m | Added +9.1k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 557.0k $5.2m | Added +246.8k |
| Legal & General Group Plc 0.00% of their portfolio | 505.8k $4.7m | Reduced -47.6k |
| Roubaix Capital, LLC 2.16% of their portfolio | 498.4k $4.6m | New |
| Swiss National Bank 0.00% of their portfolio | 407.0k $3.8m | Unchanged |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 380.0k $3.5m | Reduced -849 |
| BRASADA CAPITAL MANAGEMENT, LP 0.66% of their portfolio | 373.5k $3.6m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 359.8k $3.3m | Reduced -8.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 352.5k $3.1m | Added +24.9k |
| CenterBook Partners LP 0.18% of their portfolio | 352.3k $3.3m | Reduced -108.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 342.9k $3.2m | Added +25.0k |
| Quantinno Capital Management LP 0.01% of their portfolio | 337.1k $3.1m | Added +40.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 320.8k $3.0m | New |
| Samjo Management, LLC 1.15% of their portfolio | 287.5k $2.7m | Reduced -185.2k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 284.3k $2.0m | Reduced -7.6k |
| LORD, ABBETT & CO. LLC 0.01% of their portfolio | 284.0k $2.6m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 251.2k $2.3m | Added +39.4k |
| Granahan Investment Management, LLC 0.11% of their portfolio | 250.0k $2.3m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 243.5k $2.3m | Added +46.1k |
| Round Rock Advisors LLC 0.34% of their portfolio | 242.1k $2.2m | Added +85.2k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 235.7k $2.2m | Reduced -303.6k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 230.4k $2.1m | Added +94.1k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 227.2k $2.1m | Added +21.1k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 215.9k $2.0m | Added +66.6k |
| TD Asset Management Inc 0.00% of their portfolio | 205.1k $1.9m | Added +13.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 201.0k $1.9m | Reduced -130.3k |
| GAMCO INVESTORS, INC. ET AL 0.02% of their portfolio | 199.9k $1.9m | Added +88.4k |
| Teton Advisors, LLC 1.19% of their portfolio | 181.7k $1.7m | Reduced -4.5k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 179.0k $1.7m | Reduced -6.7k |
| PERKINS CAPITAL MANAGEMENT INC 1.55% of their portfolio | 178.0k $1.7m | Reduced -1.2k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.12% of their portfolio | 173.3k $1.6m | Reduced -140.1k |
| CAXTON ASSOCIATES LLP 0.04% of their portfolio | 173.1k $1.6m | Added +92.9k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 150.1k $1.4m | Reduced -4.2k |
| Grandeur Peak Global Advisors, LLC 0.32% of their portfolio | 148.3k $1.4m | Reduced -35.0k |
| Creative Planning 0.00% of their portfolio | 138.6k $1.3m | Added +32.7k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 138.1k $1.3m | First filing |
| Handelsbanken Fonder AB 0.00% of their portfolio | 138.1k $1.3m | Added +29.7k |
| AMERICAN CAPITAL MANAGEMENT INC 0.07% of their portfolio | 133.7k $1.2m | Reduced -1.3m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 133.5k $1.2m | Added +16.9k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 132.0k $1.2m | Added +20.0k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 127.0k $1.2m | Reduced -7.1k |
| Private Advisor Group, LLC 0.01% of their portfolio | 126.5k $1.2m | Reduced -9.6k |
| Illinois Municipal Retirement Fund 0.01% of their portfolio | 126.1k $1.2m | New |
| Mariner, LLC 0.00% of their portfolio | 123.9k $1.2m | Added +3.7k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 119.8k $1.1m | Added +5.9k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 118.8k $1.1m | Added +49.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 114.2k $1.1m | Reduced -151.4k |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 111.9k $1.0m | Reduced -140.4k |
| WOLVERINE ASSET MANAGEMENT LLC 0.02% of their portfolio | 108.4k $1.0m | Reduced -39.9k |