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. Holder counts are more reliable. Shares outstanding: 103.5m as of 2023-08-02, 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 ≈ $4.59. Options: 3 managers hold calls ($5.0k notional), 3 hold puts ($23.4k).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 108 |
| Q4 2022 | 105 |
| Q1 2023 | 115 |
| Q2 2023 | 117 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 51 | 41 |
| Q1 2023 | 68 | 32 |
| Q2 2023 | 59 | 47 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $99.0k | $0 | 0.00 |
| Q4 2022 | $19.1k | $20.8k | 1.09 |
| Q1 2023 | $15.4k | $16.9k | 1.10 |
| Q2 2023 | $5.0k | $23.4k | 4.63 |
Biggest buyers
| Stonepine Capital Management, LLC | Added | +1.3m |
| Granahan Investment Management, LLC | Added | +1.2m |
| Portolan Capital Management, LLC | Added | +1.0m |
| First Light Asset Management, LLC | Added | +493.3k |
| ArrowMark Colorado Holdings LLC | Added | +277.2k |
| FRED ALGER MANAGEMENT, LLC | Added | +269.2k |
| Grandeur Peak Global Advisors, LLC | Added | +189.1k |
| Alberta Investment Management Corp | New | +176.8k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Added | +173.7k |
| Mudita Advisors LLP | Added | +167.0k |
Biggest sellers
| BAMCO INC /NY/ | Sold out | -2.0m |
| Blue Water Life Science Advisors, LP | Reduced | -1.3m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -910.2k |
| BAILLIE GIFFORD & CO | Sold out | -293.3k |
| ALGERT GLOBAL LLC | Reduced | -245.2k |
| STRS OHIO | Reduced | -228.3k |
| Casdin Capital, LLC | Reduced | -210.0k |
| J. Goldman & Co LP | Sold out | -175.0k |
| RIVER GLOBAL INVESTORS LLP | Reduced | -165.6k |
| HSBC HOLDINGS PLC | Reduced | -154.9k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $4.6k1.0k shares |
| GROUP ONE TRADING LLC | New | $459100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $18.4k4.0k shares |
| SIMPLEX TRADING, LLC | Added | $5.0k1.1k 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 Q2 2023
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 |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 1 | $222.4k | 5 | $9.8m | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 1 | $559.1k | — |
| Q1 2023 | 1 | $345.6k | 2 | $605.2k | $13.0k |
| Q2 2023 | 0 | — | 3 | $934.9k | $934.9k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-27 | Johnston John Joseph Director | Sold plan | $32.8k7.5k shares |
| 2023-06-26 | Johnston John Joseph Director | Sold plan | $33.8k7.5k shares |
| 2023-06-14 | Doerfler Douglas President and CEO, director | Sold plan | $145.6k28.9k shares |
| 2023-06-13 | Doerfler Douglas President and CEO, director | Sold plan | $75.3k15.0k shares |
| 2023-05-03 | Doerfler Douglas President and CEO, director | Sold plan | $81.1k16.1k shares |
| 2023-04-12 | Doerfler Douglas President and CEO, director | Sold plan | $63.6k12.7k shares |
| 2023-04-12 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $27.9k5.6k shares |
| 2023-04-11 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $42.3k8.5k shares |
| 2023-04-11 | Doerfler Douglas President and CEO, director | Sold plan | $10.9k2.2k shares |
| 2023-04-10 | Doerfler Douglas President and CEO, director | Sold plan | $500100 shares |
| 2023-04-10 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $500100 shares |
| 2023-04-06 | Doerfler Douglas President and CEO, director | Sold plan | $140.1k27.9k shares |
| 2023-04-06 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $136.8k27.2k shares |
| 2023-04-05 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $34.8k7.0k shares |
| 2023-04-05 | Doerfler Douglas President and CEO, director | Sold plan | $34.8k7.0k shares |
| 2023-04-04 | Doerfler Douglas President and CEO, director | Sold plan | $37.6k7.5k shares |
| 2023-04-04 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $36.5k7.3k shares |
| 2023-04-03 | Doerfler Douglas President and CEO, director | Sold plan | $501100 shares |
| 2023-04-03 | Ross Thomas M. EVP, Global Sales & Marketing | Sold plan | $501100 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, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 6.9m $31.8m | Reduced -100.6k |
| Vitruvian Partners LLP 4.71% of their portfolio | 5.0m $23.1m | Unchanged |
| VANGUARD GROUP INC 0.00% of their portfolio | 5.0m $22.8m | Added +82.5k |
| Casdin Capital, LLC 1.89% of their portfolio | 4.7m $21.6m | Reduced -210.0k |
| Stonepine Capital Management, LLC 6.57% of their portfolio | 4.0m $18.2m | Added +1.3m |
| ArrowMark Colorado Holdings LLC 0.13% of their portfolio | 2.6m $11.8m | Added +277.2k |
| Holocene Advisors, LP 0.04% of their portfolio | 2.1m $9.7m | Unchanged |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio | 1.9m $8.9m | Reduced -18.9k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 1.9m $8.9m | Reduced -910.2k |
| Granahan Investment Management, LLC 0.27% of their portfolio | 1.9m $8.7m | Added +1.2m |
| Blue Water Life Science Advisors, LP 5.84% of their portfolio | 1.9m $8.7m | Reduced -1.3m |
| First Light Asset Management, LLC 0.67% of their portfolio | 1.9m $8.5m | Added +493.3k |
| STATE STREET CORP 0.00% of their portfolio | 1.8m $8.3m | Added +18.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.8m $8.2m | Added +115.3k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 1.7m $7.8m | Added +23.7k |
| Portolan Capital Management, LLC 0.67% of their portfolio | 1.6m $7.6m | Added +1.0m |
| MORGAN STANLEY 0.00% of their portfolio | 1.6m $7.4m | Reduced -58.9k |
| Swedbank AB 0.01% of their portfolio | 1.6m $7.3m | Unchanged |
| RIVER GLOBAL INVESTORS LLP 1.39% of their portfolio | 1.5m $7.0m | Reduced -165.6k |
| Grandeur Peak Global Advisors, LLC 0.43% of their portfolio | 1.4m $6.3m | Added +189.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 1.3m $6.1m | Reduced -9.8k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio | 1.3m $5.8m | Added +173.7k |
| Artisan Partners Limited Partnership 0.01% of their portfolio | 1.2m $5.7m | Added +2.9k |
| Mudita Advisors LLP 2.91% of their portfolio | 829.7k $3.8m | Added +167.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 778.6k $3.6m | Added +17.3k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 470.5k $2.2m | Added +3.3k |
| ROYCE & ASSOCIATES LP 0.02% of their portfolio | 398.8k $1.8m | Added +90.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 361.1k $1.7m | Reduced -18.7k |
| FRED ALGER MANAGEMENT, LLC 0.01% of their portfolio | 361.0k $1.7m | Added +269.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 343.8k $1.6m | Added +9.9k |
| Rathbones Group PLC 0.01% of their portfolio | 341.3k $1.5m | Reduced -21.3k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 334.4k $1.5m | Reduced -13.0k |
| Apollo Management Holdings, L.P. 0.01% of their portfolio | 308.0k $1.4m | Unchanged |
| Bleichroeder LP 0.23% of their portfolio | 250.0k $1.1m | Unchanged |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 248.6k $1.1m | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 238.5k $1.1m | Reduced -189 |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 208.4k $956.8k | Reduced -10.8k |
| Swiss National Bank 0.00% of their portfolio | 190.4k $873.9k | Added +36.2k |
| Alberta Investment Management Corp 0.01% of their portfolio | 176.8k $811.6k | New |
| Alyeska Investment Group, L.P. 0.01% of their portfolio | 166.6k $764.8k | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 165.4k $759.0k | Added +30.1k |
| Valmark Advisers, Inc. 0.02% of their portfolio | 163.1k $748.4k | Added +91.2k |
| ALGERT GLOBAL LLC 0.03% of their portfolio | 160.1k $735.0k | Reduced -245.2k |
| M&T Bank Corp 0.00% of their portfolio | 158.1k $725.8k | Added +33.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 153.9k $706.4k | Added +37.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 131.5k $603.6k | Reduced -3.6k |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 129.5k $594.5k | Added +12.0k |
| STRS OHIO 0.00% of their portfolio | 121.2k $556.0k | Reduced -228.3k |
| Premier Fund Managers Ltd 0.02% of their portfolio | 108.1k $485.0k | Reduced -76.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 106.0k $486.6k | Added +10.5k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 101.0k $463.6k | Added +66.8k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 94.2k $432.3k | Reduced -5.6k |
| CITIGROUP INC 0.00% of their portfolio | 88.9k $395.7k | Added +27.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 75.7k $347.0k | Reduced -25.5k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 74.0k $339.8k | Added +17.5k |
| UBS Group AG 0.00% of their portfolio | 70.9k $325.5k | Added +18.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 70.4k $323.0k | Reduced -16.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 70.2k $322.4k | Reduced -20.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 62.2k $308.0k | Unchanged |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 61.6k $282.7k | Added +20.4k |
| Legal & General Group Plc 0.00% of their portfolio | 59.8k $274.6k | Added +31.3k |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 58.4k $268.0k | Unchanged |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 48.6k $223.0k | Reduced -17.6k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 47.7k $218.8k | Reduced -8.5k |
| Chevy Chase Trust Holdings, LLC 0.00% of their portfolio | 47.4k $217.5k | New |
| GAGNON SECURITIES LLC 0.04% of their portfolio | 46.1k $211.6k | Added +9.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 43.0k $197.4k | Reduced -84.1k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 42.9k $197.0k | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 42.1k $193.1k | Reduced -469 |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 41.7k $191.5k | Reduced -187 |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 40.4k $179.7k | Reduced -154.9k |
| PDT Partners, LLC 0.02% of their portfolio | 36.2k $166.4k | Reduced -9.4k |
| BARCLAYS PLC 0.00% of their portfolio | 34.9k $160.3k | Reduced -43.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 34.5k $158.6k | Added +1.2k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 33.6k $154.0k | Added +17.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 31.4k $144.1k | Added +15.2k |
| Invesco Ltd. 0.00% of their portfolio | 30.8k $141.5k | Reduced -1.4k |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 30.6k $140.4k | Reduced -83 |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 30.4k $139.4k | Reduced -23.5k |
| Montanaro Asset Management Ltd 0.02% of their portfolio | 29.0k $128.9k | Unchanged |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 27.7k $127.2k | Added +1.8k |
| SALEM INVESTMENT COUNSELORS INC 0.00% of their portfolio | 27.6k $126.8k | Unchanged |
| Moors & Cabot, Inc. 0.01% of their portfolio | 27.0k $123.8k | Added +15.6k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 24.8k $113.6k | New |
| ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio | 24.6k $112.8k | Added +3.9k |
| TrinityBridge Ltd 0.00% of their portfolio | 22.8k $105.0k | Unchanged |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 18.1k $84.0k | Added +1.5k |
| ProShare Advisors LLC 0.00% of their portfolio | 18.0k $82.8k | Added +585 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 17.4k $79.9k | Reduced -130.9k |
| 1492 Capital Management LLC 0.04% of their portfolio | 16.3k $74.9k | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 15.7k $71.9k | New |
| PICTET ASSET MANAGEMENT SA 0.00% of their portfolio | 14.5k $64.7k | Unchanged |
| Squarepoint Ops LLC 0.00% of their portfolio | 14.2k $65.1k | Reduced -7.1k |
| FOX RUN MANAGEMENT, L.L.C. 0.02% of their portfolio | 13.5k $62.0k | New |
| Cerity Partners LLC 0.00% of their portfolio | 12.5k $57.7k | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 9.6k $44.2k | Unchanged |
| AMALGAMATED BANK 0.00% of their portfolio | 9.3k $43.0k | Reduced -141 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 9.2k $42.0k | Added +4.1k |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 7.4k $34.0k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 7.2k $32.9k | Added +49 |