NEOGNasdaqIn Vitro & In Vivo Diagnostic SubstancesFiscal year ends May 31
NEOGEN CORP
Financials through Q1 FY2027, quarter ended Aug 31, 2026Last filing: 10-Q on Oct 7, 2026
$11.63−0.18 (-1.52%)
Close on Oct 19, 2026
- Market cap
- $2.54B
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
237M of 218M shares
Institutional holders
316
54 new, 38 sold out
Net institutional buying
5M
In Q2 2026
Insider trades, 12 months
6 buys · 0 sales
Net bought $7.49K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 30,944,709 | 14.30% | 13G (passive) amendment | Mar 31, 2025 |
| Neuberger Berman Group LLC | 16,570,795 | 7.60% | 13G (passive) | Jun 30, 2026 |
| ING Capital Markets LLC | 14,060,900 | 6.47% | 13G (passive) | Sep 29, 2025 |
| Jeremy J. Modell | 14,005,725 | 6.44% | 13G (passive) | Jun 30, 2025 |
| Vanguard Portfolio Management | 12,916,330 | 5.93% | 13G (passive) | Mar 31, 2026 |
| Vanguard Capital Management | 11,164,628 | 5.13% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of NEOG | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 33,431,015 | 15.33% | $300.54M | +810,010 | 0.00% |
| Neuberger Berman Group LLC | 16,570,795 | 7.60% | $149.00M | +8,819,077 | 0.10% |
| Vanguard Portfolio Management LLC | 13,038,732 | 5.98% | $117.22M | +206,468 | 0.01% |
| Dimensional Fund Advisors LP | 9,828,174 | 4.51% | $88.36M | +696,153 | 0.02% |
| Vanguard Capital Management LLC | 9,655,248 | 4.43% | $86.80M | +90,202 | 0.00% |
| SG Americas Securities, LLC | 9,352,065 | 4.29% | $84.08K | +3,086,032 | 0.05% |
| T. Rowe Price Investment Management, Inc. | 9,333,261 | 4.28% | $83.91K | −829,454 | 0.05% |
| Ing Groep Nv | 9,102,300 | 4.17% | $81.83M | +198,000 | 0.40% |
| State Street Corp | 8,946,377 | 4.10% | $80.43M | +356,033 | 0.00% |
| Gates Capital Management, Inc. | 8,742,274 | 4.01% | $78.59M | +2,483,625 | 1.89% |
| Hudson Bay Capital Management LP | 6,500,000 | 2.98% | $58.44M | −180 | 0.16% |
| Geode Capital Management, LLC | 5,832,899 | 2.67% | $52.45M | +271,286 | 0.00% |
| Bamco Inc /Ny/ | 5,015,968 | 2.30% | $45.09M | +6,309 | 0.07% |
| Morgan Stanley | 4,306,091 | 1.97% | $38.71M | −274,336 | 0.00% |
| Mizuho Markets Americas LLC | 4,250,000 | 1.95% | $38.21M | +750,000 | 0.60% |
| National Bank Of Canada /Fi/ | 4,000,000 | 1.83% | $35.96M | +500,000 | 0.03% |
| CIBC Bancorp USA Inc. | 3,549,006 | 1.63% | $31.91M | −2,444,216 | 0.04% |
| Cibc World Market Inc. | 3,500,500 | 1.61% | $31.47M | −2,461,100 | 0.05% |
| Healthcare Of Ontario Pension Plan Trust Fund | 3,488,246 | 1.60% | $31.36M | +190,900 | 0.04% |
| MUFG Securities EMEA plc | 3,320,011 | 1.52% | $29.85M | −680,000 | 0.31% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 316 | 237M | 100.0% | 54 / 96 | 109 / 38 | 31M | 26M |
| Q1 2026 | 307 | 233M | 100.0% | 46 / 103 | 95 / 38 | 70M | 30M |
| Q4 2025 | 305 | 224M | 100.0% | 48 / 89 | 110 / 40 | 33M | 43M |
| Q3 2025 | 299 | 240M | 100.0% | 46 / 96 | 117 / 62 | 52M | 53M |
| Q2 2025 | 317 | 242M | 100.0% | 66 / 113 | 99 / 85 | 54M | 84M |
| Q1 2025 | 339 | 273M | 100.0% | 51 / 117 | 118 / 50 | 42M | 43M |
| Q4 2024 | 343 | 275M | 100.0% | 46 / 116 | 129 / 35 | 37M | 19M |
| Q3 2024 | 337 | 257M | 100.0% | 28 / 128 | 118 / 30 | 43M | 15M |
| Q2 2024 | 345 | 255M | 100.0% | 55 / 126 | 108 / 51 | 29M | 31M |
| Q1 2024 | 343 | 257M | 100.0% | 45 / 102 | 132 / 38 | 35M | 19M |
| Q4 2023 | 340 | 241M | 100.0% | 37 / 112 | 144 / 57 | 36M | 17M |
| Q3 2023 | 366 | 223M | 100.0% | 51 / 106 | 139 / 23 | 8M | 14M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of NEOG | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 13,117,003 | 6.02% | $117.92M | 0.11% | Jun 30, 2026 |
| Neuberger Genesis Fund | 7,052,940 | 3.23% | $63.26M | 0.86% | May 31, 2026 |
| Vanguard Total Stock Market Index Fund | 6,928,358 | 3.18% | $62.29M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 5,769,816 | 2.65% | $51.87M | 0.06% | Jun 30, 2026 |
| Baron Small Cap Fund | 5,000,000 | 2.29% | $44.95M | 1.58% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 4,987,158 | 2.29% | $44.83M | 0.02% | Jun 30, 2026 |
| Vanguard Small-Cap Value Index Fund | 3,162,296 | 1.45% | $28.43M | 0.04% | Jun 30, 2026 |
| U.S. Small Cap Value Portfolio | 2,944,922 | 1.35% | $35.46M | 0.18% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 2,500,594 | 1.15% | $22.48M | 0.02% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 2,421,105 | 1.11% | $29.15M | 0.09% | Jul 31, 2026 |
| T. Rowe Price Small-Cap Stock Fund, Inc. | 2,387,568 | 1.09% | $21.46M | 0.23% | Jun 30, 2026 |
| iShares Russell 2000 Value ETF | 2,065,371 | 0.95% | $18.57M | 0.13% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 2,001,396 | 0.92% | $17.99M | 0.11% | Jun 30, 2026 |
| iShares S&P Small-Cap 600 Value ETF | 1,874,108 | 0.86% | $16.85M | 0.21% | Jun 30, 2026 |
| Small Cap Equity Portfolio | 1,557,529 | 0.71% | $18.75M | 1.80% | Jul 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Mikheal Nassif | CEO, Director | 26,729 | 0.01% | Aug 20, 2026 |
| John Patrick Moylan | Chief Accounting Officer | 29,331 | 0.01% | Aug 20, 2026 |
| Jennifer Evans Stacey | Chief Legal Officer | 38,627 | 0.02% | Aug 14, 2026 |
| Tamara A. Ranalli | Senior Vice President | 25,751 | 0.01% | Aug 14, 2026 |
| Richard Bryan Riggsbee | CFO | 51,502 | 0.02% | Aug 14, 2026 |
| Amy M. Rocklin | Former Chief Legal Officer | 82,182 | 0.04% | May 19, 2026 |
| David H. Naemura | Former CFO | 93,936 | 0.04% | Dec 2, 2025 |
| Douglas Edward Jones | Former COO | 104,362 | 0.05% | Oct 28, 2025 |
| John Edward Adent | Former CEO | 371,608 | 0.17% | Oct 28, 2025 |
| James C. Borel | Director | 96,347 | 0.04% | Oct 29, 2025 |
| Jeffrey D. Capello | Director | 32,502 | 0.01% | Oct 29, 2025 |
| Ronald D. Green | Director | 18,654 | 0.01% | Oct 29, 2025 |
| Aashima Gupta | Director | 27,790 | 0.01% | Oct 29, 2025 |
| Avi Pelossof | Director | 19,386 | 0.01% | Oct 28, 2025 |
| William T. Boehm | Director | 47,913 | 0.02% | Oct 28, 2025 |
| James P. Tobin | Director | 43,347 | 0.02% | Oct 28, 2025 |
| Catherine E. Woteki | Director | 19,117 | 0.01% | Oct 28, 2025 |
| Rafael A. Rodriguez | Director | 20,821 | 0.01% | Oct 28, 2025 |
| Thierry Bernard | Director | 19,769 | 0.01% | Oct 27, 2025 |
| Andrea F. Wainer | Director | 19,769 | 0.01% | Oct 27, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Mikheal Nassif CEO, Director | Aug 19, 2026 | Tax withholding | −20,397 | $11.87 | $242.11K | 25,655 |
| John Patrick Moylan Chief Accounting Officer | Aug 19, 2026 | Tax withholding | −2,365 | $11.87 | $28.07K | 29,331 |
| Richard Bryan Riggsbee CFO | Aug 14, 2026 | Award | +51,502 | $11.65 | $600.00K | 51,502 |
| Tamara A. Ranalli Senior Vice President | Aug 14, 2026 | Award | +25,751 | $11.65 | $300.00K | 25,751 |
| John Patrick Moylan Chief Accounting Officer | Aug 14, 2026 | Award | +8,584 | $11.65 | $100.00K | 32,155 |
| Jennifer Evans Stacey Chief Legal Officer | Aug 14, 2026 | Award | +38,627 | $11.65 | $450.00K | 38,627 |
| Mikheal Nassif CEO, Director | Aug 14, 2026 | Award | +141,631 | $11.65 | $1.65M | 141,631 |
| Mikheal Nassif CEO, Director | Aug 4, 2026 | Buy | +370 | $11.81 | $4.37K | 1,074 |
| John Patrick Moylan Chief Accounting Officer | Jun 3, 2026 | Tax withholding | −2,553 | $8.75 | $22.34K | 23,571 |
| Amy M. Rocklin Former Chief Legal Officer | May 18, 2026 | Tax withholding | −10,241 | $9.29 | $95.14K | 82,182 |
| Amy M. Rocklin Former Chief Legal Officer | May 18, 2026 | Option exercise | +35,183 | $9.29 | $326.85K | 92,423 |
| John Patrick Moylan Chief Accounting Officer | May 4, 2026 | Tax withholding | −1,568 | $9.53 | $14.94K | 17,337 |
| John Patrick Moylan Chief Accounting Officer | May 4, 2026 | Option exercise | +4,558 | $9.53 | $43.44K | 18,905 |
| Jennifer Evans Stacey Chief Legal Officer | May 1, 2026 | Award | +39,349 | $9.53 | $375.00K | 39,349 |
| Mikheal Nassif CEO, Director | Feb 17, 2026 | Buy | +23 | $10.94 | $252 | 704 |
| Mikheal Nassif CEO, Director | Feb 2, 2026 | Buy | +24 | $10.00 | $240 | 681 |
| Mikheal Nassif CEO, Director | Jan 26, 2026 | Buy | +25 | $9.86 | $247 | 657 |
| Mikheal Nassif CEO, Director | Jan 16, 2026 | Buy | +137 | $9.33 | $1.28K | 632 |
| Tamara A. Ranalli Senior Vice President | Jan 7, 2026 | Award | +50,813 | $7.38 | $375.00K | 50,813 |
| Tamara A. Ranalli Senior Vice President | Jan 7, 2026 | Award | +50,813 | $7.38 | $375.00K | 50,813 |
| Tamara A. Ranalli Senior Vice President | Jan 7, 2026 | Award | +50,813 | $7.38 | $375.00K | 50,813 |
| David H. Naemura Former CFO | Dec 1, 2025 | Option exercise | +12,912 | $5.98 | $77.21K | 93,936 |
| David H. Naemura Former CFO | Dec 1, 2025 | Tax withholding | −3,548 | $5.98 | $21.22K | 90,388 |
| Mikheal Nassif CEO, Director | Nov 3, 2025 | Buy | +177 | $6.25 | $1.11K | 495 |
| Richard Bryan Riggsbee CFO | Nov 3, 2025 | Award | +178,855 | $6.29 | $1.12M | 178,855 |
| James C. Borel Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 96,347 |
| Aashima Gupta Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 27,790 |
| Ronald D. Green Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 18,654 |
| Jeffrey D. Capello Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 32,502 |
| Amy M. Rocklin Chief Legal Officer | Oct 27, 2025 | Option exercise | +9,474 | $6.19 | $58.64K | 59,325 |
| Amy M. Rocklin Chief Legal Officer | Oct 27, 2025 | Tax withholding | −2,085 | $6.19 | $12.91K | 57,240 |
| James P. Tobin Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 43,347 |
| Catherine E. Woteki Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 19,117 |
| William T. Boehm Director | Oct 27, 2025 | Option exercise | +3,553 | $6.07 | $21.57K | 47,913 |
| Douglas Edward Jones Former COO | Oct 27, 2025 | Option exercise | +15,504 | $6.19 | $95.97K | 104,362 |
| Douglas Edward Jones Former COO | Oct 27, 2025 | Tax withholding | −3,481 | $6.19 | $21.55K | 100,881 |
| David H. Naemura Chief Financial Officer | Oct 27, 2025 | Tax withholding | −4,261 | $6.19 | $26.38K | 81,024 |
| David H. Naemura Chief Financial Officer | Oct 27, 2025 | Option exercise | +15,504 | $6.19 | $95.97K | 85,285 |
| James C. Borel Director | Oct 27, 2025 | Option exercise | +2,025 | $6.19 | $12.53K | 94,570 |
| Rafael A. Rodriguez Director | Oct 27, 2025 | Option exercise | +1,777 | $6.19 | $11.00K | 20,821 |
| John Edward Adent Former CEO | Oct 27, 2025 | Option exercise | +38,759 | $6.19 | $239.92K | 371,608 |
| John Edward Adent Former CEO | Oct 27, 2025 | Tax withholding | −8,527 | $6.19 | $52.78K | 363,081 |
| Jeffrey D. Capello Director | Oct 27, 2025 | Option exercise | +2,025 | $6.19 | $12.53K | 30,725 |
| Avi Pelossof Director | Oct 24, 2025 | Award | +19,386 | $6.19 | $120.00K | 19,386 |
| James C. Borel Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 112,314 |
| Catherine E. Woteki Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 35,084 |
| Rafael A. Rodriguez Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 36,788 |
| Aashima Gupta Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 43,757 |
| Thierry Bernard Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 19,769 |
| Jeffrey D. Capello Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 48,469 |
| Ronald D. Green Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 34,621 |
| Andrea F. Wainer Director | Oct 23, 2025 | Award | +19,769 | $6.07 | $120.00K | 19,769 |
| John Edward Adent Former CEO | Oct 13, 2025 | Option exercise | +3,063 | $6.04 | $18.50K | 333,714 |
| John Edward Adent Former CEO | Oct 13, 2025 | Tax withholding | −865 | $6.04 | $5.22K | 332,849 |
| Douglas Edward Jones Former COO | Oct 13, 2025 | Tax withholding | −383 | $6.04 | $2.31K | 88,858 |
| Douglas Edward Jones Former COO | Oct 13, 2025 | Option exercise | +783 | $6.04 | $4.73K | 89,241 |
| Amy M. Rocklin Chief Legal Officer | Oct 13, 2025 | Tax withholding | −115 | $6.04 | $695 | 49,851 |
| Amy M. Rocklin Chief Legal Officer | Oct 13, 2025 | Option exercise | +294 | $6.04 | $1.78K | 49,966 |
| Rafael A. Rodriguez Director | Oct 7, 2025 | Option exercise | +2,071 | $5.63 | $11.66K | 17,019 |
| Douglas Edward Jones Former COO | Oct 7, 2025 | Option exercise | +12,940 | $5.63 | $72.85K | 94,787 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Amy M. Rocklin Former Officer | Jun 3, 2026 | 30,337 | $266.56K | Jun 3, 2026 | Option Granted - 06/02/2025 |
| Amy M. Rocklin Former Officer | May 29, 2026 | 87,681 | $805.15K | May 29, 2026 | Option Granted - 08/15/2025 |
| T. Boehm William Director | Aug 18, 2023 | 1,500 | $33.89K | Aug 18, 2023 | Stock Option Exercise |