Perimeter Group Inc. (PRM) shareholders
PRMNYSEChemicals & Allied ProductsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 7/30222% above fair value
$29.36−0.27 (-0.91%)
Close on Nov 13, 2026Market cap $4.81BP/E 163.1Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
85.6%
140M of 164M shares
Institutional holders
307
63 new, 43 sold out
Net institutional buying
12M
In Q2 2026
Insider trades, 12 months
0 buys · 35 sales
Net sold $435.23M
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 |
|---|---|---|---|---|
| The WindAcre Partnership LLC Joint filing with The WindAcre Partnership Master Fund, LP (9.90%), Snehal Rajnikant Amin (9.90%) | 16,148,621 | 9.90% | 13G (passive) amendment | Jun 30, 2026 |
| Principal Global Investors Joint filing with Principal Funds, Inc. (5.60%) | 13,375,024 | 8.20% | 13G (passive) amendment | Jun 30, 2026 |
| BlackRock, Inc. | 11,606,564 | 7.60% | 13G (passive) amendment | Dec 31, 2023 |
| FMR LLC Joint filing with Abigail P. Johnson (6.70%) | 9,755,144 | 6.70% | 13G (passive) | Sep 30, 2025 |
| William N. Thorndike, Jr. | 9,309,341 | 5.70% | 13D (active) | Mar 3, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of PRM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Windacre Partnership LLC | 16,148,621 | 9.87% | $575.70M | −5,705,979 | 5.69% |
| Principal Financial Group Inc | 14,007,326 | 8.56% | $499.36M | +1,494,167 | 0.25% |
| BlackRock, Inc. | 12,170,113 | 7.43% | $433.86M | +1,340,733 | 0.01% |
| FMR LLC | 9,602,473 | 5.87% | $342.33M | +563,363 | 0.01% |
| Vanguard Capital Management LLC | 6,587,147 | 4.02% | $234.83M | +411,660 | 0.01% |
| Dimensional Fund Advisors LP | 4,315,745 | 2.64% | $153.82M | −447,720 | 0.03% |
| Geode Capital Management, LLC | 4,230,528 | 2.58% | $150.85M | +433,923 | 0.01% |
| Jupiter Topco LLC | 4,125,974 | 2.52% | $147.09M | New | 0.06% |
| State Street Corp | 3,611,344 | 2.21% | $128.74M | +367,276 | 0.00% |
| Df Dent & Co Inc | 3,322,708 | 2.03% | $118.45M | −609,663 | 2.25% |
| JPMorgan Chase & Co | 3,138,584 | 1.92% | $102.93M | +331,950 | 0.01% |
| Balance Capital Partners L.P. | 2,735,521 | 1.67% | $97.52M | – | 70.00% |
| Invesco Ltd. | 2,445,056 | 1.49% | $87.17M | +1,393,432 | 0.01% |
| Brown Brothers Harriman & Co | 2,403,457 | 1.47% | $85.68M | −204,832 | 0.38% |
| Price T Rowe Associates Inc /Md/ | 2,052,289 | 1.25% | $73.17M | +1,892,983 | 0.01% |
| Franklin Resources Inc | 1,829,951 | 1.12% | $65.24M | +1,632,862 | 0.01% |
| Neuberger Berman Group LLC | 1,815,703 | 1.11% | $64.73M | +1,802,552 | 0.04% |
| Senator Investment Group LP | 1,795,000 | 1.10% | $63.99M | −575,000 | 2.34% |
| Morgan Stanley | 1,742,451 | 1.06% | $62.12M | −134,325 | 0.00% |
| Vanguard Portfolio Management LLC | 1,705,999 | 1.04% | $60.82M | +258,538 | 0.00% |
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 | 307 | 140M | 85.6% | 63 / 136 | 71 / 43 | 26M | 14M |
| Q1 2026 | 293 | 132M | 80.5% | 58 / 97 | 99 / 45 | 19M | 11M |
| Q4 2025 | 286 | 133M | 81.2% | 77 / 92 | 82 / 20 | 14M | 11M |
| Q3 2025 | 237 | 130M | 79.5% | 55 / 71 | 79 / 25 | 15M | 14M |
| Q2 2025 | 209 | 129M | 78.6% | 27 / 81 | 68 / 39 | 12M | 8M |
| Q1 2025 | 222 | 125M | 76.3% | 50 / 81 | 61 / 29 | 14M | 16M |
| Q4 2024 | 202 | 127M | 77.5% | 202 / 0 | 0 / 0 | 127M | 0M |
| Q3 2024 | 0 | 0M | 0.0% | 0 / 0 | 0 / 1 | 0M | 0M |
| Q2 2024 | 1 | 0M | 0.0% | 0 / 0 | 0 / 0 | 0M | 0M |
| Q1 2024 | 1 | 0M | 0.0% | 1 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
274 funds held PRM in Q2 2026, 30% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of PRM | Value | % of fund | As of |
|---|---|---|---|---|---|
| MidCap Fund | 9,389,985 | 5.74% | $287.43M | 1.24% | Jul 31, 2026 |
| Vanguard Total Stock Market Index Fund | 4,662,386 | 2.85% | $166.21M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 3,904,609 | 2.39% | $139.20M | 0.17% | Jun 30, 2026 |
| Janus Henderson Venture Fund | 2,223,554 | 1.36% | $79.27M | 2.19% | Jun 30, 2026 |
| Fidelity Low-Priced Stock Fund | 2,206,398 | 1.35% | $67.54M | 0.27% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 1,777,235 | 1.09% | $63.36M | 0.06% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 1,662,511 | 1.02% | $50.89M | 0.15% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF | 1,404,291 | 0.86% | $50.06M | 0.32% | Jun 30, 2026 |
| T. Rowe Price New Horizons Fund, Inc. | 1,183,600 | 0.72% | $42.20M | 0.29% | Jun 30, 2026 |
| PRIMECAP Odyssey Aggressive Growth Fund | 1,098,010 | 0.67% | $33.61M | 0.45% | Jul 31, 2026 |
| Janus Henderson Triton Fund | 1,026,767 | 0.63% | $36.60M | 0.62% | Jun 30, 2026 |
| Putnam Small Cap Growth Fund | 924,975 | 0.57% | $32.98M | 0.97% | Jun 30, 2026 |
| Neuberger Genesis Fund | 835,250 | 0.51% | $26.96M | 0.37% | May 31, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund | 834,305 | 0.51% | $26.93M | 0.01% | May 31, 2026 |
| Fidelity Small Cap Growth Fund | 776,340 | 0.47% | $23.76M | 0.27% | 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 |
|---|---|---|---|---|
| Haitham Khouri | Chief Executive Officer, Director | 3,100,000 | 1.89% | May 22, 2026 |
| Edward D. Goldberg | Vice Chairman, Director | 222,957 | 0.14% | Feb 21, 2025 |
| Kyle Sable | Chief Financial Officer | 49,540 | 0.03% | May 15, 2026 |
| Jeffrey Emery | President - Global Fire Safety | 53,537 | 0.03% | May 15, 2026 |
| Noriko Yokozuka | General Counsel | 47,157 | 0.03% | Mar 2, 2026 |
| Grant Bowman | President, Specialty Products | – | – | Mar 2, 2026 |
| W. Nicholas Howley | Director | 606,200 | 0.37% | Apr 24, 2026 |
| William N. Thorndike Jr | Director | 8,535,656 | 5.21% | Mar 11, 2026 |
| Tracy Britt Cool | Director | 256,693 | 0.16% | Mar 5, 2026 |
| Vivek Raj | Director | 677,560 | 0.41% | Mar 5, 2026 |
| Robert S. Henderson | Director | 328,416 | 0.20% | Mar 2, 2026 |
| Bernt G. Iversen II | Director | 126,861 | 0.08% | Mar 2, 2026 |
| III Jorge L. Valladares | Director | 286,000 | 0.17% | Mar 2, 2026 |
| Sean P. Hennessy | Director | 100,000 | 0.06% | Mar 2, 2026 |
| General Partner LP WindAcre | 10% owner | 20,000,000 | 12.22% | Jul 13, 2026 |
| Llc Wapgp | 10% owner | 21,854,600 | 13.35% | Jul 13, 2026 |
| Partnership Llc Windacre | 10% owner | 16,148,621 | 9.87% | Jul 13, 2026 |
| Snehal Amin | 10% owner | 16,148,621 | 9.87% | Jul 13, 2026 |
| WindAcre Partnership Master Fund, LP | 10% owner | 21,600,000 | 13.20% | Jul 13, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Snehal Amin 10% owner | Jun 30, 2026 | Sale | −1,875,000 | $33.90 | $63.56M | 16,148,621 |
| Partnership Llc Windacre 10% owner | Jun 30, 2026 | Sale | −1,875,000 | $33.90 | $63.56M | 16,148,621 |
| Snehal Amin 10% owner | Jun 29, 2026 | Sale | −437,500 | $33.00 | $14.44M | 18,023,621 |
| Partnership Llc Windacre 10% owner | Jun 29, 2026 | Sale | −437,500 | $33.00 | $14.44M | 18,023,621 |
| Snehal Amin 10% owner | Jun 26, 2026 | Sale | −548,479 | $34.51 | $18.93M | 18,461,121 |
| Snehal Amin 10% owner | Jun 26, 2026 | Sale | −2,296,400 | $34.40 | $79.00M | 19,029,600 |
| Snehal Amin 10% owner | Jun 26, 2026 | Sale | −150,000 | $34.98 | $5.25M | 21,326,000 |
| Snehal Amin 10% owner | Jun 26, 2026 | Sale | −378,600 | $36.22 | $13.71M | 21,476,000 |
| Snehal Amin 10% owner | Jun 26, 2026 | Sale | −20,000 | $36.25 | $725.00K | 19,009,600 |
| Partnership Llc Windacre 10% owner | Jun 26, 2026 | Sale | −20,000 | $36.25 | $725.00K | 19,009,600 |
| Partnership Llc Windacre 10% owner | Jun 26, 2026 | Sale | −548,479 | $34.51 | $18.93M | 18,461,121 |
| Partnership Llc Windacre 10% owner | Jun 26, 2026 | Sale | −2,296,400 | $34.40 | $79.00M | 19,029,600 |
| Partnership Llc Windacre 10% owner | Jun 26, 2026 | Sale | −150,000 | $34.98 | $5.25M | 21,326,000 |
| Partnership Llc Windacre 10% owner | Jun 26, 2026 | Sale | −378,600 | $36.22 | $13.71M | 21,476,000 |
| Haitham Khouri Chief Executive Officer, Director | May 22, 2026 | Sale | −117,511 | $31.19 | $3.67M | 1,874,615 |
| Haitham Khouri Chief Executive Officer, Director | May 21, 2026 | Sale | −91,724 | $31.91 | $2.93M | 1,992,126 |
| Haitham Khouri Chief Executive Officer, Director | May 20, 2026 | Sale | −20,300 | $34.09 | $692.03K | 2,083,850 |
| Jeffrey Emery President - Global Fire Safety | May 13, 2026 | Option exercise | +53,537 | $8.36 | $447.57K | 53,537 |
| Jeffrey Emery President - Global Fire Safety | May 13, 2026 | Sale | −53,537 | $33.45 | $1.79M | 0 |
| Kyle Sable Chief Financial Officer | May 13, 2026 | Option exercise | +49,540 | $8.36 | $414.15K | 49,540 |
| Kyle Sable Chief Financial Officer | May 13, 2026 | Sale | −3,277 | $33.59 | $110.07K | 0 |
| Kyle Sable Chief Financial Officer | May 13, 2026 | Sale | −46,263 | $33.05 | $1.53M | 3,277 |
| Kyle Sable Chief Financial Officer | May 12, 2026 | Sale | −30,000 | $31.75 | $952.50K | 0 |
| Kyle Sable Chief Financial Officer | May 12, 2026 | Option exercise | +30,000 | $8.36 | $250.80K | 30,000 |
| Kyle Sable Chief Financial Officer | May 11, 2026 | Option exercise | +20,460 | $8.36 | $171.05K | 20,460 |
| Kyle Sable Chief Financial Officer | May 11, 2026 | Sale | −20,460 | $32.89 | $672.93K | 0 |
| Jeffrey Emery President - Global Fire Safety | May 11, 2026 | Option exercise | +99,963 | $8.36 | $835.69K | 99,963 |
| Jeffrey Emery President - Global Fire Safety | May 11, 2026 | Sale | −97,855 | $32.90 | $3.22M | 2,108 |
| Jeffrey Emery President - Global Fire Safety | May 11, 2026 | Sale | −2,108 | $34.05 | $71.78K | 0 |
| Kyle Sable Chief Financial Officer | May 8, 2026 | Option exercise | +20,000 | $3.89 | $77.80K | 20,000 |
| Kyle Sable Chief Financial Officer | May 8, 2026 | Option exercise | +130,000 | $8.36 | $1.09M | 150,000 |
| Kyle Sable Chief Financial Officer | May 8, 2026 | Sale | −150,000 | $31.52 | $4.73M | 0 |
| Jeffrey Emery President - Global Fire Safety | May 8, 2026 | Sale | −46,500 | $32.00 | $1.49M | 0 |
| Jeffrey Emery President - Global Fire Safety | May 8, 2026 | Option exercise | +46,500 | $8.36 | $388.74K | 46,500 |
| W. Nicholas Howley Director | Apr 23, 2026 | Gift | −3,480,640 | – | – | 606,200 |
| W. Nicholas Howley Director | Apr 1, 2026 | Gift | −1,000,000 | – | – | 4,086,840 |
| William N. Thorndike Jr Director | Mar 11, 2026 | Sale | −100,000 | $23.18 | $2.32M | 8,535,656 |
| William N. Thorndike Jr Director | Mar 10, 2026 | Sale | −100,000 | $23.63 | $2.36M | 8,635,656 |
| William N. Thorndike Jr Director | Mar 9, 2026 | Sale | −34,957 | $23.85 | $833.72K | 8,735,656 |
| William N. Thorndike Jr Director | Mar 9, 2026 | Sale | −90,043 | $23.18 | $2.09M | 8,770,613 |
| William N. Thorndike Jr Director | Mar 6, 2026 | Sale | −100,000 | $23.63 | $2.36M | 8,860,656 |
| William N. Thorndike Jr Director | Mar 5, 2026 | Sale | −100,000 | $24.06 | $2.41M | 8,960,656 |
| William N. Thorndike Jr Director | Mar 4, 2026 | Sale | −125,000 | $24.26 | $3.03M | 9,060,656 |
| Haitham Khouri Chief Executive Officer, Director | Mar 3, 2026 | Award | +1,600,317 | – | – | 2,104,150 |
| Tracy Britt Cool Director | Mar 3, 2026 | Award | +65,843 | – | – | 250,493 |
| William N. Thorndike Jr Director | Mar 3, 2026 | Award | +5,582,492 | – | – | 9,185,656 |
| W. Nicholas Howley Director | Mar 3, 2026 | Gift | −1,101,852 | – | – | 5,086,840 |
| W. Nicholas Howley Director | Mar 3, 2026 | Award | +5,582,492 | – | – | 6,188,692 |
| Vivek Raj Director | Mar 3, 2026 | Award | +555,859 | – | – | 677,560 |
| Noriko Yokozuka General Counsel | Dec 12, 2025 | Sale | −137,500 | $28.44 | $3.91M | 47,157 |
| Noriko Yokozuka General Counsel | Dec 12, 2025 | Option exercise | +120,000 | $10.00 | $1.20M | 184,657 |
| Noriko Yokozuka General Counsel | Dec 12, 2025 | Option exercise | +17,500 | $10.00 | $175.00K | 64,657 |
| Kyle Sable Chief Financial Officer | Dec 12, 2025 | Option exercise | +100,000 | $8.36 | $836.00K | 100,000 |
| Kyle Sable Chief Financial Officer | Dec 12, 2025 | Sale | −100,000 | $28.47 | $2.85M | 0 |
| William N. Thorndike Jr Director | Dec 9, 2025 | Gift | −673,685 | – | – | 3,603,164 |
| W. Nicholas Howley Director | Nov 24, 2025 | Gift | −746,767 | – | – | 606,200 |
| Vivek Raj Director | Sep 11, 2025 | Sale | −25,000 | $22.45 | $561.25K | 121,701 |
| Kyle Sable Chief Financial Officer | Sep 5, 2025 | Option exercise | +40,000 | $3.89 | $155.60K | 40,000 |
| Kyle Sable Chief Financial Officer | Sep 5, 2025 | Sale | −40,000 | $22.05 | $882.00K | 0 |
| Jeffrey Emery President - Global Fire Safety | Sep 4, 2025 | Sale | −300,000 | $22.28 | $6.68M | 0 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
5.25%
7M shares short
Days to cover
5.6
At 1M shares a day
Change since last report
-4.3%
From 7M shares
Short volume, 20 days
64.2%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Perimeter's stock actually held short. Settlement fails (shares not delivered on time) peaked at 56,444 shares on Sep 16, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Vivek Raj Former Director | Jun 12, 2026 | 78,569 | $2.75M | Jun 12, 2026 | Pro-rata distribution from EverArc Founders, LLC to its members |
| Vivek Raj Former Director | Jun 12, 2026 | 43,132 | $1.51M | Jun 12, 2026 | Pro-rata distribution from EverArc Founders, LLC to its members |
| Haitham Khouri Officer | May 22, 2026 | 117,511 | $3.65M | May 22, 2026 | Acquired from issuer in private transaction |
| Haitham Khouri Officer | May 21, 2026 | 91,724 | $2.88M | May 21, 2026 | Acquired from issuer in private transaction |
| Haitham Khouri Officer | May 20, 2026 | 20,300 | $680.05K | May 20, 2026 | Acquired from issuer in private transaction |
| Kyle Sable Officer, Director | May 13, 2026 | 49,540 | $1.64M | May 13, 2026 | Exercise of options under a registered plan |
| Jeffrey Emery Officer | May 13, 2026 | 53,537 | $1.79M | May 13, 2026 | Exercise of options under a registered plan |
| Kyle Sable Officer, Director | May 12, 2026 | 30,000 | $952.36K | May 12, 2026 | Exercise of options under a registered plan |
| Jeffrey Emery Officer | May 11, 2026 | 99,963 | $3.29M | May 11, 2026 | Exercise of options under a registered plan |
| Kyle Sable Officer, Director | May 11, 2026 | 20,460 | $672.85K | May 11, 2026 | Exercise of options under a registered plan |
| Kyle Sable Officer, Director | May 8, 2026 | 150,000 | $4.73M | May 8, 2026 | Exercise of options under a registered plan |
| Jeffrey Emery Officer | May 8, 2026 | 46,500 | $1.49M | May 8, 2026 | Exercise of options under a registered plan |
| Cromwell Harbor Supporting Foundation Foundation of Director | Mar 12, 2026 | 115,000 | $2.66M | Mar 12, 2026 | Gift |
| William N. Thorndike Jr Director | Mar 5, 2026 | 525,000 | $12.50M | Mar 5, 2026 | Executive compensation |
| William N. Thorndike Jr Director | Mar 4, 2026 | 125,000 | $3.05M | Mar 4, 2026 | Executive Compensation |
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