Kalaris Therapeutics KLRS Insider Ownership

NASDAQ KLRS
$2.08 +0.01 (+0.48%)
As of: Oct 21, 2026 · 12:59 PM EDT

Insider Holdings by Owner

16.28Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
66.75%
■0% pp QoQ
Shares Held by Insiders
15.89Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
23.80Mn
23,804,981 shares
Direct Holdings
944.69K
Indirect: 14.95Mn
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
21
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

In the last 12 months, insiders at Kalaris Therapeutics made open-market purchases of $6.18 million (724.15K shares) and open-market sales of $12,869 (1.92K shares).

Form 4 Holdings

Insiders Holding KLRS

Insiders 21
Shares held 16.28Mn
Of outstanding 68.40%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Srinivas Akkaraju Director, TenPercentOwner 0 12,915,520 12,915,520 79.3% 22 May, 2026
2 Llc Elevatebio, Director, TenPercentOwner 725,019 0 725,019 4.5% 01 Aug, 2022
3 Ansbert Gadicke Director, TenPercentOwner 0 725,019 725,019 4.5% 01 Aug, 2022
4 Sciences, Inc. Gilead TenPercentOwner 723,302 0 723,302 4.4% 28 Jun, 2023
5 Napoleone Ferrara Director 504,000 0 504,000 3.1% 18 Mar, 2025
6 Samir Chandrakant Patel Director 252,000 100,800 352,800 2.2% 18 Mar, 2025
7 Juan Vera Director 104,784 0 104,784 0.6% 07 Jun, 2024
8 David Hallal Chief Executive Officer 93,206 0 93,206 0.6% 07 Jun, 2024
9 Vikas Sinha Director, Officer, TenPercentOwner 49,129 0 49,129 0.3% 24 Feb, 2025
10 Diana Brainard Chief Executive Officer 31,452 0 31,452 0.2% 20 Nov, 2024
11 Beek Jeroen B Van Chief Commercial Officer 14,510 0 14,510 0.1% 18 Nov, 2022
12 Edward Miller General Counsel 6,517 0 6,517 0.0% 24 Feb, 2025
13 Cintia Piccina Chief Commercial Officer 6,392 0 6,392 0.0% 05 Jul, 2023
14 Ercem Atillasoy Officer 5,712 0 5,712 0.0% 26 Oct, 2022
15 Jeffrey S Bornstein Director 4,791 0 4,791 0.0% 07 Jun, 2024
16 Morana Jovan-Embiricos Director, TenPercentOwner 4,357 0 4,357 0.0% 07 Jun, 2024
17 Malcolm Brenner Director 4,357 0 4,357 0.0% 07 Jun, 2024
18 Matthew Feinsod Chief Medical Officer 4,030 0 4,030 0.0% 18 Mar, 2025
19 Shawn Tomasello Director 3,044 0 3,044 0.0% 07 Jun, 2024
20 Derek N. Adams Director 3,044 0 3,044 0.0% 07 Jun, 2024
21 Ann M. Leen Chief Scientific Officer 1,870 0 1,870 0.0% 17 Aug, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

537 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
27 Aug, 2026 Amy O'Leary Vandekop Vp, Corporate Controller Acquired A 10,000 $0.00 $0 10,000 Direct
01 Aug, 2026 Laurie Keating Director Acquired A 18,000 $0.00 $0 18,000 Direct
20 Jul, 2026 Liisa Ann Bayko Chief Financial Officer Acquired A 220,000 $0.00 $0 220,000 Direct
03 Jun, 2026 Napoleone Ferrara Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 Morana Jovan-Embiricos Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 Srinivas Akkaraju Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 Michael Dybbs Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 Leone D Patterson Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 David Hallal Director Acquired A 9,000 $0.00 $0 9,000 Direct
03 Jun, 2026 Anthony P Adamis Director Acquired A 9,000 $0.00 $0 9,000 Direct
20 May, 2026 Srinivas Akkaraju Director, TenPercentOwner Acquired P 244,300 $4.83 $1.18Mn 2,224,147 Indirect
20 May, 2026 Srinivas Akkaraju Director, TenPercentOwner Disposed J 66,906 $0.00 $0 10,657,028 Indirect
20 May, 2026 Srinivas Akkaraju Director, TenPercentOwner Acquired J 14,937 $0.00 $0 14,937 Indirect
20 May, 2026 Srinivas Akkaraju Director, TenPercentOwner Acquired J 4,471 $0.00 $0 19,408 Indirect
20 Mar, 2026 Brett R Hagen Chief Accounting Officer Disposed S 1,915 $6.72 $12.87K 0 Direct
19 Mar, 2026 Brett R Hagen Chief Accounting Officer Acquired A 60,800 $0.00 $0 60,800 Direct
19 Mar, 2026 Andrew Oxtoby Director, Officer Acquired A 222,000 $0.00 $0 222,000 Direct
19 Mar, 2026 Matthew Gall Chief Financial Officer Acquired A 95,000 $0.00 $0 95,000 Direct
19 Mar, 2026 Matthew Feinsod Chief Medical Officer Acquired A 135,000 $0.00 $0 135,000 Direct
18 Dec, 2025 Srinivas Akkaraju Director, TenPercentOwner Acquired P 479,847 $10.42 $5.00Mn 1,979,847 Indirect