JY
MTNB icon

Jeff Yass’s Matinas BioPharma MTNB Stock Holding History

Jeff Yass’s Portfolio MTNB Stock Details MTNB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$9.85K Buy
16,093
+1,765
+12% +$1.14K ﹤0.01% 13138
2026
Q1 		$7.16K Sell
14,328
-6,785
-32% -$4.25K ﹤0.01% 12967
2025
Q4 		$12.4K Buy
+21,113
New +$24.9K ﹤0.01% 12035
2025
Q2 		– Sell
-25,610
Closed -$13.3K – 13340
2025
Q1 		$13.3K Buy
25,610
+1,808
+8% +$1.07K ﹤0.01% 12193
2024
Q4 		$12.1K Buy
+23,802
New +$36.2K ﹤0.01% 11972
2024
Q1 		– Sell
-275
Closed -$2.97K – 12911
2023
Q4 		$2.97K Buy
+275
New +$3.1K ﹤0.01% 12153
2023
Q2 		– Sell
-295
Closed -$6.92K – 12749
2023
Q1 		$6.92K Sell
295
-286
-49% -$7.23K ﹤0.01% 12260
2022
Q4 		$14.5K Buy
+581
New +$19.3K ﹤0.01% 11856
2022
Q1 		– Sell
-1,191
Closed -$60K – 13619
2021
Q4 		$60K Buy
+1,191
New +$63.7K ﹤0.01% 12448
2021
Q3 		– Sell
-239
Closed -$9K – 13256
2021
Q2 		$9K Sell
239
-6,366
-96% -$274K ﹤0.01% 12446
2021
Q1 		$347K Buy
6,605
+6,065
+1,123% +$407K ﹤0.01% 10310
2020
Q4 		$37K Sell
540
-753
-58% -$34.9K ﹤0.01% 10814
2020
Q3 		$50K Buy
+1,293
New +$51.4K ﹤0.01% 10198
2020
Q2 		– Sell
-25,828
Closed -$775K – 10626
2020
Q1 		$775K Buy
25,828
+14,122
+121% +$853K ﹤0.01% 5956
2019
Q4 		$1.33M Buy
+11,706
New +$678K ﹤0.01% 5002
2019
Q3 		– Sell
-1,803
Closed -$77K – 10600
2019
Q2 		$77K Sell
1,803
-3,353
-65% -$161K ﹤0.01% 9710
2019
Q1 		$281K Buy
+5,156
New +$278K ﹤0.01% 7325
2018
Q2 		– Sell
-369
Closed -$14K – 10100
2018
Q1 		$14K Buy
+369
New +$19.5K ﹤0.01% 9162
2017
Q2 		– Sell
-693
Closed -$96K – 9581
2017
Q1 		$96K Buy
+693
New +$113K ﹤0.01% 8405

Other funds holding MTNB

Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
HIW
Holos Integrated Wealth Kennett Square, Pennsylvania $214M AUM 14.99% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SIG
Sargent Investment Group Bethesda, Maryland $832M AUM 24.89% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return

Jeff Yass's MTNB Position: Q2 2026 in Review

Jeff Yass increased its Matinas BioPharma (MTNB) stake by 12% in Q2 2026, buying an estimated $1.14K and bringing the position to 16,093 shares worth $9.85K. The position accounts for ﹤0.01% of the portfolio, ranked #13138.

Jeff Yass first reported a position in MTNB in Q1 2017 and has held it in 19 quarters since. The position peaked at $1.33M in Q4 2019. 25 funds tracked by Wall St. Rank hold MTNB as of Q2 2026.

  • Jeff Yass held 16,093 shares of Matinas BioPharma worth $9.85K as of Q2 2026.
  • Jeff Yass bought 1,765 Matinas BioPharma shares in Q2 2026, an estimated $1.14K.
  • Matinas BioPharma made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #13138 holding.
  • Jeff Yass first reported a position in Matinas BioPharma in Q1 2017 and has held it in 19 quarters since.
  • Jeff Yass's Matinas BioPharma position peaked at $1.33M in Q4 2019.
  • 25 funds tracked by Wall St. Rank held Matinas BioPharma as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.