MAXCYTE INC MXCT
COM · Common Stock · CUSIP 57777K106 · ISIN US57777K1060
Biotech company in Rockville, United States
- SectorHealth care
- IndustryServices-Commercial Physical & Biological Research
- HeadquartersRockville, MD
- Websitemaxcyte.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 ($102.9k this quarter). Holder counts are more reliable. Shares outstanding: 105.5m as of 2024-11-01, 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 ≈ $4.17. Options: 3 managers hold calls ($84.2k notional), 3 hold puts ($27.0k).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 108 |
| Q4 2022 | 105 |
| Q1 2023 | 115 |
| Q2 2023 | 117 |
| Q3 2023 | 121 |
| Q4 2023 | 121 |
| Q1 2024 | 124 |
| Q2 2024 | 115 |
| Q3 2024 | 121 |
| Q4 2024 | 120 |
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 2023 | 68 | 32 |
| Q2 2023 | 59 | 47 |
| Q3 2023 | 58 | 51 |
| Q4 2023 | 68 | 49 |
| Q1 2024 | 57 | 58 |
| Q2 2024 | 56 | 56 |
| Q3 2024 | 61 | 36 |
| Q4 2024 | 63 | 51 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $18.0k | $9.8k | 0.54 |
| Q2 2024 | $7.8k | $13.6k | 1.73 |
| Q3 2024 | $3.9k | $8.8k | 2.26 |
| Q4 2024 | $84.2k | $27.0k | 0.32 |
Biggest buyers
| MIRABELLA FINANCIAL SERVICES LLP | New | +3.7m |
| RIVER GLOBAL INVESTORS LLP | Added | +1.2m |
| CADIAN CAPITAL MANAGEMENT, LP | Added | +1.2m |
| AXA S.A. | New | +986.9k |
| ROYCE & ASSOCIATES LP | Added | +475.9k |
| CITADEL ADVISORS LLC | Added | +327.0k |
| CenterBook Partners LP | Added | +281.9k |
| RICE HALL JAMES & ASSOCIATES, LLC | New | +263.8k |
| DIMENSIONAL FUND ADVISORS LP | Added | +191.1k |
| FMR LLC | Added | +154.2k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.5m |
| AMERIPRISE FINANCIAL INC | Sold out | -1.1m |
| BlackRock, Inc. | Reduced | -464.7k |
| Roubaix Capital, LLC | Sold out | -427.5k |
| MORGAN STANLEY | Reduced | -408.9k |
| VANGUARD GROUP INC | Reduced | -345.6k |
| JPMORGAN CHASE & CO | Reduced | -236.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Sold out | -203.6k |
| LAZARD ASSET MANAGEMENT LLC | Reduced | -198.0k |
| Swiss National Bank | Sold out | -184.4k |
Biggest calls
| SIMPLEX TRADING, LLC | New | $48.0k11.7k shares |
| CITADEL ADVISORS LLC | Added | $36.2k8.7k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $25.0k6.0k shares |
| SIMPLEX TRADING, LLC | Unchanged | $2.0k500 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 |
|---|---|
| Capricorn Fund Managers Ltd 13G · institution new · filed 2026-02-05 | 7.7% |
Liontrust Investment Partners LLP
13D · may seek influence
new · filed 2026-10-15
Stated purpose(a) The acquisition by any person of additional securities of the issuer, or the disposition of securities of the issuer Full filing |
5.0% |
Fell to 5% or below in the last year: RIVER GLOBAL INVESTORS LLP (0.8%, 2026-08-04), BlackRock, Inc. (1.3%, 2026-07-29), MIRABELLA FINANCIAL SERVICES LLP (0.0%, 2026-04-10), VANGUARD GROUP INC (0.0%, 2026-03-27), CADIAN CAPITAL MANAGEMENT, LP (3.5%, 2026-02-17)
Insider purchases and sales in Q4 2024
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 2023 | 1 | $345.6k | 2 | $605.2k | $13.0k |
| Q2 2023 | 0 | — | 3 | $934.9k | $934.9k |
| Q3 2023 | 0 | — | 2 | $193.1k | $193.1k |
| Q4 2023 | 0 | — | 2 | $849.9k | $82.7k |
| Q1 2024 | 0 | — | 1 | $70.7k | $70.7k |
| Q2 2024 | 1 | $489.1k | 2 | $176.2k | $176.2k |
| Q3 2024 | 0 | — | 3 | $512.7k | $512.7k |
| Q4 2024 | 0 | — | 2 | $390.7k | $390.7k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-12-26 | Johnston John Joseph Director | Sold plan | $12.0k3.0k shares |
| 2024-12-09 | Johnston John Joseph Director | Sold plan | $9.5k2.5k shares |
| 2024-12-06 | Johnston John Joseph Director | Sold plan | $1.9k505 shares |
| 2024-11-01 | Erck Stanley C Director | Sold plan | $177.4k47.7k shares |
| 2024-10-28 | Johnston John Joseph Director | Sold plan | $11.2k3.0k shares |
| 2024-10-02 | Erck Stanley C Director | Sold plan | $80.2k21.6k shares |
| 2024-10-01 | Erck Stanley C Director | Sold plan | $98.6k26.1k 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 2024
| Manager | Shares | Change |
|---|---|---|
| CADIAN CAPITAL MANAGEMENT, LP 2.24% of their portfolio | 9.3m $38.9m | Added +1.2m |
| BlackRock, Inc. 0.00% of their portfolio | 8.0m $33.4m | Reduced -464.7k |
| VANGUARD GROUP INC 0.00% of their portfolio | 5.4m $22.6m | Reduced -345.6k |
| Vitruvian Partners LLP 18.06% of their portfolio | 5.0m $21.0m | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 4.4m $18.3m | Reduced -408.9k |
| MIRABELLA FINANCIAL SERVICES LLP 1.41% of their portfolio | 3.7m $15.4m | New |
| RIVER GLOBAL INVESTORS LLP 2.62% of their portfolio | 3.3m $13.5m | Added +1.2m |
| Mudita Advisors LLP 7.53% of their portfolio | 3.2m $13.4m | Added +70.0k |
| FMR LLC 0.00% of their portfolio | 3.1m $13.0m | Added +154.2k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 2.7m $11.4m | Reduced -1.5m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.5m $10.3m | Added +3.4k |
| STATE STREET CORP 0.00% of their portfolio | 2.1m $8.9m | Reduced -124.9k |
| Swedbank AB 0.01% of their portfolio | 1.6m $6.7m | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 1.4m $5.9m | Added +191.1k |
| ArrowMark Colorado Holdings LLC 0.08% of their portfolio | 1.4m $5.6m | Reduced -37.2k |
| Chevy Chase Trust Holdings, LLC 0.02% of their portfolio | 1.3m $5.6m | Added +7.8k |
| Portolan Capital Management, LLC 0.32% of their portfolio | 1.1m $4.7m | Reduced -167.8k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.03% of their portfolio | 1.1m $4.5m | Reduced -10.7k |
| AXA S.A. 0.01% of their portfolio | 986.9k $4.1m | New |
| CenterBook Partners LP 0.22% of their portfolio | 867.0k $3.6m | Added +281.9k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 860.4k $3.6m | Added +129 |
| ROYCE & ASSOCIATES LP 0.03% of their portfolio | 799.9k $3.3m | Added +475.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 519.0k $2.2m | Added +13.7k |
| Willis Investment Counsel 0.11% of their portfolio | 405.5k $1.7m | Unchanged |
| FRED ALGER MANAGEMENT, LLC 0.01% of their portfolio | 389.4k $1.6m | Reduced -183 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 377.6k $1.6m | Added +327.0k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 336.1k $1.4m | Reduced -9.5k |
| Apollo Management Holdings, L.P. 0.03% of their portfolio | 308.0k $1.3m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 292.0k $1.2m | Reduced -7.7k |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 282.9k $1.2m | Added +9.9k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 281.2k $1.2m | Added +91.1k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 268.5k $1.1m | Reduced -102.0k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.06% of their portfolio | 263.8k $1.1m | New |
| Rathbones Group PLC 0.00% of their portfolio | 253.1k $1.0m | Unchanged |
| MARSHALL WACE, LLP 0.00% of their portfolio | 252.3k $1.0m | Added +29.7k |
| Bleichroeder LP 0.25% of their portfolio | 250.0k $1.0m | Unchanged |
| GAGNON SECURITIES LLC 0.17% of their portfolio | 197.3k $820.9k | Added +138.3k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 176.4k $733.7k | Added +14.8k |
| BARCLAYS PLC 0.00% of their portfolio | 164.0k $682.4k | Reduced -1.7k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 163.5k $680.0k | Reduced -198.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 153.7k $639.2k | Added +2.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 151.9k $632.1k | Reduced -236.0k |
| CITIGROUP INC 0.00% of their portfolio | 133.5k $541.9k | Added +4.9k |
| HRT FINANCIAL LP 0.00% of their portfolio | 126.2k $525.0k | New |
| STRS OHIO 0.00% of their portfolio | 120.3k $500.4k | Unchanged |
| Valmark Advisers, Inc. 0.01% of their portfolio | 115.7k $481.1k | Added +2.5k |
| M&T Bank Corp 0.00% of their portfolio | 113.9k $473.4k | Added +104 |
| Walleye Capital LLC 0.00% of their portfolio | 110.9k $461.3k | New |
| UBS Group AG 0.00% of their portfolio | 110.6k $460.3k | Added +42.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 109.9k $457.2k | Reduced -87.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 108.6k $451.8k | Added +84.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 103.2k $429.2k | Added +84.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 98.4k $409.5k | Added +38.8k |
| US BANCORP \DE\ 0.00% of their portfolio | 87.2k $362.7k | Reduced -8.0k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 85.0k $353.6k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 79.1k $329.0k | Added +12.2k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 67.2k $279.7k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 61.4k $255.5k | Added +13.4k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 61.0k $253.7k | Unchanged |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 59.9k $249.3k | Added +2.6k |
| XTX Topco Ltd 0.02% of their portfolio | 58.9k $244.9k | New |
| SALEM INVESTMENT COUNSELORS INC 0.01% of their portfolio | 56.4k $234.5k | Unchanged |
| Corebridge Financial, Inc. 0.00% of their portfolio | 52.0k $216.4k | Reduced -3.9k |
| Invesco Ltd. 0.00% of their portfolio | 49.1k $204.2k | Added +3.8k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 48.8k $199.3k | Added +16.6k |
| SG Americas Securities, LLC 0.00% of their portfolio | 47.8k $199.0k | Added +9.8k |
| EntryPoint Capital, LLC 0.08% of their portfolio | 44.5k $184.9k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 42.4k $177.0k | Added +9.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 40.5k $168.5k | Reduced -539 |
| Squarepoint Ops LLC 0.00% of their portfolio | 34.6k $144.1k | Reduced -109.2k |
| ProShare Advisors LLC 0.00% of their portfolio | 34.5k $143.4k | Added +8.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 34.0k $141.6k | Reduced -2.1k |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 32.2k $134.0k | Added +19.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 29.2k $121.4k | Added +16.6k |
| Legal & General Group Plc 0.00% of their portfolio | 26.1k $107.0k | Reduced -74.4k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 25.1k $104.6k | Unchanged |
| Centiva Capital, LP 0.00% of their portfolio | 25.0k $104.0k | New |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 24.1k $100.3k | Reduced -72 |
| Graham Capital Management, L.P. 0.00% of their portfolio | 23.0k $95.9k | New |
| China Universal Asset Management Co., Ltd. 0.01% of their portfolio | 22.4k $93.0k | Added +2.2k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 21.2k $88.3k | First filing |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 17.8k $74.0k | New |
| Catalyst Funds Management Pty Ltd 0.02% of their portfolio | 17.7k $73.6k | New |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 15.6k $65.0k | New |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 15.6k $64.7k | Reduced -2.1k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 14.2k $59.0k | Added +3.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 13.5k $56.2k | New |
| Moors & Cabot, Inc. 0.00% of their portfolio | 13.2k $54.8k | Unchanged |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 12.0k $50.1k | Reduced -245 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 12.0k $49.8k | Added +234 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 10.2k $42.6k | Unchanged |
| Quadrature Capital Ltd 0.00% of their portfolio | 10.2k $42.8k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 9.4k $39.3k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 7.6k $31.5k | Reduced -82.1k |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 7.6k $31.5k | Added +4.2k |
| BROWN BROTHERS HARRIMAN & CO 0.00% of their portfolio | 6.3k $26.0k | Unchanged |
| TrinityBridge Ltd 0.00% of their portfolio | 3.8k $16.0k | Unchanged |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 3.5k $14.5k | Reduced -286 |
| Sterling Capital Management LLC 0.00% of their portfolio | 3.4k $13.9k | Added +3.0k |
| AMALGAMATED BANK 0.00% of their portfolio | 3.3k $14.0k | Unchanged |