Vault-13

JASPER THERAPEUTICS INC JSPR

COM NEW · Common Stock · CUSIP 471871202 · ISIN US4718712023

62 institutional holders +61 vs Q4 2023
13,381,71713.4m shares reported held*
$390.6mreported value*
61 new 0 added 1 reduced 0 sold out net bought ≈ $377.1m (+12.9m shares)

* 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. Implied quarter-end price ≈ $29.19. Options: 5 managers hold calls ($4.3m notional), 5 hold puts ($854.9k).

Trends to Q1 2024

Institutional holders

Managers reporting a position, each quarter

0255075Q4 23: 1Q1 24: 6262Q4 23Q1 24
Numbers
QuarterHolders
Q4 20231
Q1 202462

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6mQ2 23 calls: $0Q2 23 puts: $0Q2 23P/C —Q3 23 calls: $0Q3 23 puts: $0Q3 23P/C —Q4 23 calls: $0Q4 23 puts: $0Q4 23P/C —Q1 24 calls: $4.3mQ1 24 puts: $854.9kQ1 24P/C 0.20
Numbers
QuarterCallsPutsP/C
Q2 2023$0$0—
Q3 2023$0$0—
Q4 2023$0$0—
Q1 2024$4.3m$854.9k0.20

Biggest buyers

Velan Capital Investment Management LP New +1,471,904+1.5m
Soleus Capital Management, L.P. New +1,187,096+1.2m
Carlyle Group Inc. New +1,066,189+1.1m
QIMING U.S. VENTURES MANAGEMENT, LLC New +928,964+929.0k
Avidity Partners Management LP New +760,000+760.0k
FRANKLIN RESOURCES INC New +722,074+722.1k
VANGUARD GROUP INC New +612,745+612.7k
MORGAN STANLEY New +529,251+529.3k
SAMSARA BIOCAPITAL, LLC New +525,000+525.0k
SPHERA FUNDS MANAGEMENT LTD. New +505,242+505.2k

Biggest sellers

Fernwood Investment Management, LLC Reduced -445,236-445.2k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $2.9m100.2k shares
LMR Partners LLP New $801.5k27.3k shares
SIMPLEX TRADING, LLC New $440.0k15.0k shares
CITADEL ADVISORS LLC New $82.2k2.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. New $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $408.1k13.9k shares
SIMPLEX TRADING, LLC New $205.0k7.0k shares
CANTOR FITZGERALD, L. P. New $130.3k13.6k shares
CITADEL ADVISORS LLC New $111.6k3.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. New $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.

HolderStakeChangeShares Last filed
Velan Capital Investment Management LP 13G · passive investor no change · filed 2026-08-17 9.9% no change 3.4m≈ $1.4m 2026-08-17
T. Rowe Price Investment Management, Inc. 13G · institution new · filed 2025-11-14 7.1% new 2.1m≈ $866.3k 2025-11-14
BANK OF AMERICA CORP /DE/ 13G · institution new · filed 2026-10-28 6.4% new 2.1m≈ $898.4k 2026-10-28
ACORN BIOVENTURES, L.P. 13G · passive investor -1.1 pts · filed 2026-01-26 5.3% -1.1 pts 1.5m≈ $625.8k 2026-01-26

Fell to 5% or below in the last year: INTEGRATED CORE STRATEGIES (US) LLC (1.7%, 2026-07-10), MORGAN STANLEY (4.8%, 2026-05-12), GOLDMAN SACHS GROUP INC (0.5%, 2026-05-08), Soleus Capital Master Fund, L.P. (1.0%, 2026-05-08), Carlyle Group Inc. (3.8%, 2026-02-18), Qiming U.S. Healthcare Fund II, L.P. (3.3%, 2025-11-14)

Insider purchases and sales in Q1 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)

BuyingSelling
404Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22Q4 22: 0 buyingQ4 22: 0 sellingQ1 23: 0 buyingQ1 23: 0 sellingQ1 23Q2 23: 0 buyingQ2 23: 4 sellingQ3 23: 0 buyingQ3 23: 0 sellingQ3 23Q4 23: 1 buyingQ4 23: 1 sellingQ1 24: 0 buyingQ1 24: 1 sellingQ1 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q2 20220—1$101.4k—
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—4$51.1k$14.9k
Q3 20230—0——
Q4 20231$31.2k1$6.8k$6.8k
Q1 20240—1$23.8k—
DateInsiderTradeSharesPrice ValueTheir holding
2024-03-12 Mahal Jeetinder Singh Chief Operating Officer Sold 900 $26.44 $23.8k900 shares -4%
2024-02-08 VENKATARAMAN BALAJI +8 10% owner · By Velan Capital Master Fund LP Bought 350,000 $12.95 $4.5m350.0k shares +42%
2024-02-08 TC Group, LLC +9 10% owner · See footnotes Bought 190,000 $12.95 $2.5m190.0k shares +22%

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, Q1 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Velan Capital Investment Management LP 22.76% of their portfolio ALPHARETTA, GA 1,471,9041.5m $42.1m $42.1m 22.76% New
2 Soleus Capital Management, L.P. 3.06% of their portfolio GREENWICH, CT 1,187,0961.2m $34.9m $34.9m 3.06% New
3 Carlyle Group Inc. 1.97% of their portfolio WASHINGTON, DC 1,066,1891.1m $31.3m $31.3m 1.97% New
4 QIMING U.S. VENTURES MANAGEMENT, LLC 30.41% of their portfolio BELLEVUE, WA 928,964929.0k $27.3m $27.3m 30.41% New
5 Avidity Partners Management LP 0.79% of their portfolio DALLAS, TX 760,000760.0k $22.3m $22.3m 0.79% New
6 FRANKLIN RESOURCES INC 0.01% of their portfolio San Mateo, CA 722,074722.1k $21.2m $21.2m 0.01% New
7 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 612,745612.7k $18.0m $18.0m 0.00% New
8 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 529,251529.3k $15.5m $15.5m 0.00% New
9 SAMSARA BIOCAPITAL, LLC 2.38% of their portfolio PALO ALTO, CA 525,000525.0k $15.4m $15.4m 2.38% New
10 SPHERA FUNDS MANAGEMENT LTD. 2.40% of their portfolio TEL AVIV, L3 505,242505.2k $14.8m $14.8m 2.40% New
11 Octagon Capital Advisors LP 1.79% of their portfolio NEW YORK, NY 500,811500.8k $14.7m $14.7m 1.79% New
12 KINGDON CAPITAL MANAGEMENT, L.L.C. 1.93% of their portfolio NEW YORK, NY 497,000497.0k $14.6m $14.6m 1.93% New
13 Opaleye Management Inc. 2.79% of their portfolio BOSTON, MA 435,573435.6k $12.8m $12.8m 2.79% New
14 GREAT POINT PARTNERS LLC 1.86% of their portfolio Greenwich, CT 407,550407.6k $12.0m $12.0m 1.86% New
15 Rock Springs Capital Management LP 0.30% of their portfolio Baltimore, MD 404,335404.3k $11.9m $11.9m 0.30% New
16 Woodline Partners LP 0.10% of their portfolio San Francisco, CA 379,246379.2k $11.1m $11.1m 0.10% New
17 Boxer Capital, LLC 0.51% of their portfolio San Diego, CA 350,000350.0k $10.3m $10.3m 0.51% New
18 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 319,787319.8k $9.4m $9.4m 0.00% New
19 Ally Bridge Group (NY) LLC 4.73% of their portfolio NEW YORK, NY 289,943289.9k $8.5m $8.5m 4.73% New
20 BlackRock Inc. 0.00% of their portfolio New York, NY 193,422193.4k $5.7m $5.7m 0.00% New
21 STEMPOINT CAPITAL LP 1.01% of their portfolio NEW YORK, NY 129,211129.2k $3.8m $3.8m 1.01% New
22 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 127,991128.0k $3.8m $3.8m 0.00% New
23 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 111,366111.4k $3.3m $3.3m 0.00% New
24 SILVERARC CAPITAL MANAGEMENT, LLC 0.90% of their portfolio BOSTON, MA 109,892109.9k $3.2m $3.2m 0.90% New
25 Ikarian Capital, LLC 0.84% of their portfolio DALLAS, TX 105,175105.2k $3.1m $3.1m 0.84% New
26 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 79,81179.8k $2.3m $2.3m 0.00% New
27 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 69,10069.1k $811.9k $811.9k 0.00% New
28 Mariner, LLC 0.00% of their portfolio Overland Park, KS 52,82652.8k $1.6m $1.6m 0.00% New
29 Fernwood Investment Management, LLC 0.42% of their portfolio QUINCY, MA 49,47049.5k $1.5m $1.5m 0.42% Reduced -445.2k -445,236
30 LMR Partners LLP 0.03% of their portfolio LONDON, X0 43,94543.9k $1.3m $1.3m 0.03% New
31 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 41,89441.9k $1.2m $1.2m 0.00% New
32 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 39,99940.0k $1.2m $1.2m 0.00% New
33 CANTOR FITZGERALD, L. P. 0.25% of their portfolio NEW YORK, NY 35,00035.0k $1.1m $1.1m 0.25% New
34 Lion Point Capital, LP 1.80% of their portfolio NEW YORK, NY 32,00032.0k $939.5k $939.5k 1.80% New
35 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 23,32423.3k $684.8k $684.8k 0.02% New
36 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 23,27123.3k $683.0k $683.0k 0.00% New
37 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 22,69722.7k $666.4k $666.4k 0.00% New
38 Informed Momentum Co LLC 0.10% of their portfolio SOLANA BEACH, CA 21,52521.5k $632.0k $632.0k 0.10% New
39 Concurrent Investment Advisors, LLC 0.02% of their portfolio Tampa, FL 20,40920.4k $599.2k $599.2k 0.02% New
40 Man Group plc 0.00% of their portfolio LONDON, X0 20,35720.4k $597.7k $597.7k 0.00% New
41 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 16,21016.2k $475.9k $475.9k 0.00% New
42 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 13,44913.4k $394.9k $394.9k 0.00% New
43 LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.03% of their portfolio Englewood, NJ 11,39711.4k $334.6k $334.6k 0.03% New
44 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 11,17211.2k $328.0k $328.0k 0.00% New
45 Virtu Financial LLC 0.02% of their portfolio New York, NY 10,41010.4k $306.0k $306.0k 0.02% New
46 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 10,25010.2k $300.9k $300.9k 0.00% New
47 Balyasny Asset Management L.P. 0.00% of their portfolio Chicago, IL 8,4178.4k $247.1k $247.1k 0.00% New
48 Brevan Howard Capital Management LP 0.02% of their portfolio ST. HELIER, Y9 8,3788.4k $246.0k $246.0k 0.02% New
49 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 8,0848.1k $237.3k $237.3k 0.00% New
50 Point72 Asia (Singapore) Pte. Ltd. 0.06% of their portfolio SINGAPORE, U0 8,0028.0k $234.9k $234.9k 0.06% New
51 Leonteq Securities AG 0.03% of their portfolio ZURICH, V8 8,0008.0k $234.9k $234.9k 0.03% New
52 Atom Investors LP 0.03% of their portfolio AUSTIN, TX 7,3737.4k $216.5k $216.5k 0.03% New
53 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 7,3637.4k $216.2k $216.2k 0.00% New
54 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 3,7583.8k $110.0k $110.0k 0.00% New
55 ADAR1 Capital Management, LLC 0.02% of their portfolio AUSTIN, TX 2,4062.4k $70.6k $70.6k 0.02% New
56 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 744744 $21.0k $21.0k 0.00% New
57 MACQUARIE GROUP LTD 0.00% of their portfolio Sydney, NSW 2000, C3 697697 $20 $20 0.00% New
58 NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio MONTREAL, A8 100100 $2.1k $2.1k 0.00% New
59 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 9292 $2.7k $2.7k 0.00% New
60 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1010 $0 $0 0.00% New
61 BFSG, LLC 0.00% of their portfolio IRVINE, CA 1010 $294 $294 0.00% New
62 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% New