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 ($538.1k this quarter). Holder counts are more reliable. Shares outstanding: 217.5m as of 2025-11-30, 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 ≈ $6.99. Options: 6 managers hold calls ($14.5m notional), 5 hold puts ($7.1m).
Trends to Q4 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 144 | 169 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $545.9k | $2.1m | 3.78 |
| Q2 2025 | $1.3m | $5.0m | 3.73 |
| Q3 2025 | $3.5m | $6.6m | 1.91 |
| Q4 2025 | $14.5m | $7.1m | 0.49 |
Biggest buyers
| T. Rowe Price Investment Management, Inc. | Added | +7.0m |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Added | +2.5m |
| MIZUHO MARKETS AMERICAS LLC | Added | +1.5m |
| Hudson Bay Capital Management LP | Added | +1.5m |
| SG Americas Securities, LLC | Added | +1.5m |
| BANK OF AMERICA CORP /DE/ | Added | +1.3m |
| CITADEL ADVISORS LLC | Added | +1.1m |
| JANE STREET GROUP, LLC | Added | +1.1m |
| HEARTLAND ADVISORS INC | New | +1.0m |
| Balyasny Asset Management L.P. | New | +561.2k |
Biggest sellers
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold out | -5.9m |
| ING GROEP NV | Reduced | -5.3m |
| Southpoint Capital Advisors LP | Sold out | -5.0m |
| JPMORGAN CHASE & CO | Reduced | -3.0m |
| Gates Capital Management, Inc. | Reduced | -2.5m |
| D. E. Shaw & Co., Inc. | Reduced | -2.2m |
| UBS Group AG | Reduced | -2.1m |
| SHAPIRO CAPITAL MANAGEMENT LLC | Reduced | -1.4m |
| MORGAN STANLEY | Reduced | -1.4m |
| BAMCO INC /NY/ | Reduced | -1.3m |
Biggest calls
| CITADEL ADVISORS LLC | Added | $3.6m510.6k shares |
| GROUP ONE TRADING LLC | Added | $3.4m487.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.6m377.1k shares |
| SIMPLEX TRADING, LLC | Added | $2.3m328.4k shares |
| JANE STREET GROUP, LLC | New | $2.1m299.8k shares |
| PEAK6 LLC | New | $542.4k77.6k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $4.0m571.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.6m230.5k shares |
| JANE STREET GROUP, LLC | New | $1.2m174.2k shares |
| GROUP ONE TRADING LLC | Added | $170.6k24.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $69.9k10.0k 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 Q4 2025
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 |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| 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 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-11-03 | Nassif Mikheal CEO, director · By son | Bought | $1.1k177 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, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 32.5m $227.2m | Added +493.0k |
| VANGUARD GROUP INC 0.00% of their portfolio | 23.8m $166.4m | Reduced -161.3k |
| Clarkston Capital Partners, LLC 1.83% of their portfolio | 11.3m $79.2m | Reduced -364.6k |
| T. Rowe Price Investment Management, Inc. 0.03% of their portfolio | 9.4m $65.6m | Added +7.0m |
| ING GROEP NV 0.37% of their portfolio | 8.8m $61.4m | Reduced -5.3m |
| STATE STREET CORP 0.00% of their portfolio | 8.7m $61.0m | Reduced -25.7k |
| Gates Capital Management, Inc. 2.04% of their portfolio | 8.4m $58.6m | Reduced -2.5m |
| MACKENZIE FINANCIAL CORP 0.07% of their portfolio | 7.9m $55.6m | Added +79.0k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 7.4m $51.7m | Reduced -627.5k |
| CIBC WORLD MARKETS CORP 0.24% of their portfolio | 6.9m $48.0m | First filing |
| Hudson Bay Capital Management LP 0.26% of their portfolio | 6.5m $45.4m | Added +1.5m |
| BAMCO INC /NY/ 0.10% of their portfolio | 5.5m $38.5m | Reduced -1.3m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 5.4m $37.9m | Added +48.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 5.4m $37.8m | Added +1.3m |
| BANK OF MONTREAL /CAN/ 0.01% of their portfolio | 4.6m $32.1m | Added +4.9k |
| MORGAN STANLEY 0.00% of their portfolio | 4.5m $31.4m | Reduced -1.4m |
| MIZUHO MARKETS AMERICAS LLC 0.53% of their portfolio | 3.5m $24.5m | Added +1.5m |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.04% of their portfolio | 3.5m $24.4m | Added +2.5m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 2.9m $20.2m | Added +79.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 2.7m $19.0m | Added +8.9k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.3m $16.0m | Reduced -167.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 2.2m $15.4m | Reduced -456.3k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 2.0m $13.9m | Added +1.1m |
| GLENMEDE TRUST CO NA 0.07% of their portfolio | 2.0m $13.8m | First filing |
| SHAPIRO CAPITAL MANAGEMENT LLC 0.67% of their portfolio | 1.8m $12.8m | Reduced -1.4m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 1.8m $12.4m | Reduced -1.2m |
| UBS Group AG 0.00% of their portfolio | 1.6m $11.5m | Reduced -2.1m |
| SG Americas Securities, LLC 0.01% of their portfolio | 1.6m $11.3m | Added +1.5m |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 1.5m $10.8m | Added +220.0k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.21% of their portfolio | 1.4m $9.9m | Reduced -132.7k |
| AMERICAN CAPITAL MANAGEMENT INC 0.43% of their portfolio | 1.4m $9.8m | Reduced -268.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.3m $9.1m | Reduced -736.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.3m $9.0m | Reduced -42.5k |
| Invesco Ltd. 0.00% of their portfolio | 1.2m $8.6m | Reduced -31.3k |
| Nuveen, LLC 0.00% of their portfolio | 1.2m $8.5m | Reduced -46.1k |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 1.2m $8.4m | Reduced -7.6k |
| ArrowMark Colorado Holdings LLC 0.17% of their portfolio | 1.1m $7.8m | Unchanged |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 1.1m $7.7m | Added +1.1m |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.03% of their portfolio | 1.1m $7.6m | Reduced -6.5k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 1.0m $7.3m | Reduced -2.2m |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 1.0m $7.2m | Reduced -13.2k |
| NATIONAL BANK OF CANADA /FI/ 0.01% of their portfolio | 1.0m $7.0m | Reduced -412 |
| HEARTLAND ADVISORS INC 0.38% of their portfolio | 1.0m $7.0m | New |
| NOMURA HOLDINGS INC 0.02% of their portfolio | 846.8k $5.9m | Added +314.2k |
| FRED ALGER MANAGEMENT, LLC 0.02% of their portfolio | 836.7k $5.8m | Reduced -849.3k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 752.8k $5.3m | Reduced -94.5k |
| Susquehanna Portfolio Strategies, LLC 0.07% of their portfolio | 690.2k $4.8m | Unchanged |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 616.3k $4.3m | Reduced -39.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 581.0k $4.1m | Added +344.9k |
| Balyasny Asset Management L.P. 0.01% of their portfolio | 561.2k $3.9m | New |
| Legal & General Group Plc 0.00% of their portfolio | 553.4k $3.9m | Reduced -33.4k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 539.3k $3.8m | Added +528.5k |
| Samjo Management, LLC 1.28% of their portfolio | 472.7k $3.3m | Reduced -72.7k |
| CenterBook Partners LP 0.16% of their portfolio | 460.4k $3.2m | Reduced -122.6k |
| Swiss National Bank 0.00% of their portfolio | 407.0k $2.8m | Added +7.3k |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 380.8k $2.7m | Reduced -1.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 368.0k $2.6m | Added +20.7k |
| BARCLAYS PLC 0.00% of their portfolio | 361.3k $2.5m | Added +15.4k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 331.3k $2.3m | Reduced -78.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 327.7k $2.3m | Reduced -3.0m |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 317.9k $2.2m | Added +6.8k |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.15% of their portfolio | 313.4k $2.2m | Reduced -37.8k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 310.2k $2.2m | Reduced -3.6k |
| Quantinno Capital Management LP 0.00% of their portfolio | 297.0k $2.1m | Added +20.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 291.8k $2.0m | Added +12.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 265.6k $1.9m | Added +78.4k |
| INTECH INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 252.4k $1.8m | Added +124.6k |
| Bastion Asset Management Inc. 0.96% of their portfolio | 246.7k $1.7m | New |
| FMR LLC 0.00% of their portfolio | 222.0k $1.6m | Added +194.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 211.8k $1.5m | Added +14.2k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 209.0k $1.5m | Added +67.9k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 206.0k $1.5m | Reduced -15.2k |
| HARBOR CAPITAL ADVISORS, INC. 0.11% of their portfolio | 202.4k $1.4m | Added +18.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 197.4k $1.4m | Reduced -13.3k |
| TD Asset Management Inc 0.00% of their portfolio | 191.6k $1.3m | New |
| Teton Advisors, LLC 0.90% of their portfolio | 186.2k $1.3m | Unchanged |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 185.8k $1.3m | Reduced -60.7k |
| Grandeur Peak Global Advisors, LLC 0.17% of their portfolio | 183.2k $1.3m | Reduced -518.3k |
| PERKINS CAPITAL MANAGEMENT INC 0.99% of their portfolio | 179.2k $1.3m | New |
| GSA CAPITAL PARTNERS LLP 0.10% of their portfolio | 171.3k $1.2m | New |
| Round Rock Advisors LLC 0.17% of their portfolio | 157.0k $1.1m | Added +131.7k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 154.3k $1.1m | Reduced -290 |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 149.3k $1.0m | Reduced -7.4k |
| WOLVERINE ASSET MANAGEMENT LLC 0.01% of their portfolio | 148.3k $1.0m | Unchanged |
| NORGES BANK 0.00% of their portfolio | 144.5k $1.0m | Not comparable |
| SEI INVESTMENTS CO 0.00% of their portfolio | 136.3k $952.4k | Added +85.6k |
| Private Advisor Group, LLC 0.00% of their portfolio | 136.0k $950.8k | Reduced -4.7k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 134.1k $937.0k | Unchanged |
| Verition Fund Management LLC 0.00% of their portfolio | 126.7k $885.6k | Reduced -65.2k |
| Mariner, LLC 0.00% of their portfolio | 120.2k $840.8k | Added +35.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 116.5k $814.6k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 113.9k $795.9k | Reduced -15.3k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 112.0k $782.9k | Reduced -52.0k |
| GAMCO INVESTORS, INC. ET AL 0.01% of their portfolio | 111.5k $779.4k | Added +11.0k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 110.6k $773.0k | Added +1.4k |
| Handelsbanken Fonder AB 0.00% of their portfolio | 108.4k $757.0k | Reduced -600 |
| Dynamic Technology Lab Private Ltd 0.17% of their portfolio | 106.3k $743.0k | New |
| Creative Planning 0.00% of their portfolio | 105.8k $739.7k | Added +41.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 101.6k $709.9k | Reduced -59 |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 101.5k $709.2k | Unchanged |